| Age | Commit message (Collapse) | Author | Files | Lines |
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Pull vfs fixes from Christian Brauner:
- eventpoll: fix ep_remove() UAF and follow-up cleanup
- fs: aio: set VMA_DONTCOPY_BIT in mmap to fix NULL-pointer-dereference
error
- writeback: Fix use after free in inode_switch_wbs_work_fn()
- fuse: reject oversized dirents in page cache
- fs: aio: reject partial mremap to avoid Null-pointer-dereference
error
- nstree: fix func. parameter kernel-doc warnings
- fs: Handle multiply claimed blocks more gracefully with mmb
* tag 'vfs-7.1-rc1.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
eventpoll: drop vestigial epi->dying flag
eventpoll: drop dead bool return from ep_remove_epi()
eventpoll: refresh eventpoll_release() fast-path comment
eventpoll: move f_lock acquisition into ep_remove_file()
eventpoll: fix ep_remove struct eventpoll / struct file UAF
eventpoll: move epi_fget() up
eventpoll: rename ep_remove_safe() back to ep_remove()
eventpoll: drop vestigial __ prefix from ep_remove_{file,epi}()
eventpoll: kill __ep_remove()
eventpoll: split __ep_remove()
eventpoll: use hlist_is_singular_node() in __ep_remove()
fs: Handle multiply claimed blocks more gracefully with mmb
nstree: fix func. parameter kernel-doc warnings
fs: aio: reject partial mremap to avoid Null-pointer-dereference error
fuse: reject oversized dirents in page cache
writeback: Fix use after free in inode_switch_wbs_work_fn()
fs: aio: set VMA_DONTCOPY_BIT in mmap to fix NULL-pointer-dereference error
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Pull networking fixes from Jakub Kicinski:
"Including fixes from Netfilter.
Steady stream of fixes. Last two weeks feel comparable to the two
weeks before the merge window. Lots of AI-aided bug discovery. A newer
big source is Sashiko/Gemini (Roman Gushchin's system), which points
out issues in existing code during patch review (maybe 25% of fixes
here likely originating from Sashiko). Nice thing is these are often
fixed by the respective maintainers, not drive-bys.
Current release - new code bugs:
- kconfig: MDIO_PIC64HPSC should depend on ARCH_MICROCHIP
Previous releases - regressions:
- add async ndo_set_rx_mode and switch drivers which we promised to
be called under the per-netdev mutex to it
- dsa: remove duplicate netdev_lock_ops() for conduit ethtool ops
- hv_sock: report EOF instead of -EIO for FIN
- vsock/virtio: fix MSG_PEEK calculation on bytes to copy
Previous releases - always broken:
- ipv6: fix possible UAF in icmpv6_rcv()
- icmp: validate reply type before using icmp_pointers
- af_unix: drop all SCM attributes for SOCKMAP
- netfilter: fix a number of bugs in the osf (OS fingerprinting)
- eth: intel: fix timestamp interrupt configuration for E825C
Misc:
- bunch of data-race annotations"
* tag 'net-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (148 commits)
rxrpc: Fix error handling in rxgk_extract_token()
rxrpc: Fix re-decryption of RESPONSE packets
rxrpc: Fix rxrpc_input_call_event() to only unshare DATA packets
rxrpc: Fix missing validation of ticket length in non-XDR key preparsing
rxgk: Fix potential integer overflow in length check
rxrpc: Fix conn-level packet handling to unshare RESPONSE packets
rxrpc: Fix potential UAF after skb_unshare() failure
rxrpc: Fix rxkad crypto unalignment handling
rxrpc: Fix memory leaks in rxkad_verify_response()
net: rds: fix MR cleanup on copy error
m68k: mvme147: Make me the maintainer
net: txgbe: fix firmware version check
selftests/bpf: check epoll readiness during reuseport migration
tcp: call sk_data_ready() after listener migration
vhost_net: fix sleeping with preempt-disabled in vhost_net_busy_poll()
ipv6: Cap TLV scan in ip6_tnl_parse_tlv_enc_lim
tipc: fix double-free in tipc_buf_append()
llc: Return -EINPROGRESS from llc_ui_connect()
ipv4: icmp: validate reply type before using icmp_pointers
selftests/net: packetdrill: cover RFC 5961 5.2 challenge ACK on both edges
...
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The old comment justified the lockless READ_ONCE(file->f_ep) check
with "False positives simply cannot happen because the file is on
the way to be removed and nobody ( but eventpoll ) has still a
reference to this file." That reasoning was the root of the UAF
fixed in "eventpoll: fix ep_remove struct eventpoll / struct file
UAF": __ep_remove() could clear f_ep while another close raced
past the fast path and freed the watched eventpoll / recycled the
struct file slot.
With ep_remove() now pinning @file via epi_fget() across the f_ep
clear and hlist_del_rcu(), the invariant is re-established for the
right reason: anyone who might clear f_ep holds @file alive for
the duration, so a NULL observation really does mean no
concurrent eventpoll path has work left on this file. Refresh the
comment accordingly so the next reader doesn't inherit the broken
model.
Link: https://patch.msgid.link/20260423-work-epoll-uaf-v1-8-2470f9eec0f5@kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
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Use the correct parameter name ("__ns") for function parameter kernel-doc
to avoid 3 warnings:
Warning: include/linux/nstree.h:68 function parameter '__ns' not described in 'ns_tree_add_raw'
Warning: include/linux/nstree.h:77 function parameter '__ns' not described in 'ns_tree_add'
Warning: include/linux/nstree.h:88 function parameter '__ns' not described in 'ns_tree_remove'
Fixes: 885fc8ac0a4d ("nstree: make iterator generic")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/20260416215429.948898-1-rdunlap@infradead.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Pull ACPI support fixes from Rafael Wysocki:
"These fix two potential refcount leaks in error code paths in the ACPI
core code, address a recently introduced build breakage related to the
CPU UID handling consolidation, fix up a recently added MAINTAINERS
entry, fix the quirk list in the ACPI video bus driver, and add a new
quirk to it:
- Add an acpi_get_cpu_uid() stub helper to address an x86 Xen support
build breakage (Arnd Bergmann)
- Use acpi_dev_put() in object add error paths in the ACPI core to
avoid refcount leaks (Guangshuo Li)
- Adjust the file entry in the recently added NVIDIA GHES HANDLER
entry in MAINTAINERS to the actual existing file (Lukas Bulwahn)
- Add backlight=native quirk for Dell OptiPlex 7770 AIO to the ACPI
video bus driver (Jan Schär)
- Move Lenovo Legion S7 15ACH6 quirk to the right section of the
quirk list in the ACPI video bus driver (Hans de Goede)"
* tag 'acpi-7.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: video: Move Lenovo Legion S7 15ACH6 quirk to the right section
ACPI: video: Add backlight=native quirk for Dell OptiPlex 7770 AIO
ACPI: add acpi_get_cpu_uid() stub helper
MAINTAINERS: adjust file entry in NVIDIA GHES HANDLER
ACPI: scan: Use acpi_dev_put() in object add error paths
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Remove the amateur radio (AX.25, NET/ROM, ROSE) protocol implementation
and all associated hamradio device drivers from the kernel tree.
This set of protocols has long been a huge bug/syzbot magnet,
and since nobody stepped up to help us deal with the influx
of the AI-generated bug reports we need to move it out of tree
to protect our sanity.
The code is moved to an out-of-tree repo:
https://github.com/linux-netdev/mod-orphan
if it's cleaned up and reworked there we can accept it back.
Minimal stub headers are kept for include/net/ax25.h (AX25_P_IP,
AX25_ADDR_LEN, ax25_address) and include/net/rose.h (ROSE_ADDR_LEN)
so that the conditional integration code in arp.c and tun.c continues
to compile and work when the out-of-tree modules are loaded.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Carlos Bilbao <carlos.bilbao@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Link: https://patch.msgid.link/20260421021824.1293976-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Remove the ISDN (mISDN, CAPI) subsystem and Bluetooth CMTP protocol
from the kernel tree.
ISDN is a pretty old technology and it's unclear whether anyone still
uses it. I went over the last few years of git history and all the
commits are either tree-wide conversions or syzbot/static analyzer
fixes.
When we discussed removal in the past IIRC there were some concerns
about ISDN still being used in parts of Germany. Unfortunately, the
code base is quite old, none of the current maintainers are familiar
with it and AI tools will have a field day finding bugs here.
Delete this code and preserve it in an out-of-tree repository
for any remaining users:
https://github.com/linux-netdev/mod-orphan
UAPI constants AF_ISDN/PF_ISDN and the SELinux isdn_socket class
are preserved for ABI stability, but the rest of uAPI is removed.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260421022108.1299678-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Remove CAIF (Communication CPU to Application CPU Interface), the
ST-Ericsson modem protocol. The subsystem has been orphaned since 2013.
The last meaningful changes from the maintainers were in March 2013:
a8c7687bf216 ("caif_virtio: Check that vringh_config is not null")
b2273be8d2df ("caif_virtio: Use vringh_notify_enable correctly")
0d2e1a2926b1 ("caif_virtio: Introduce caif over virtio")
Not-so-coincidentally, according to "the Internet" ST-Ericsson officially
shut down its modem joint venture in Aug 2013.
If anyone is using this code please yell!
In the 13 years since, the code has accumulated 200 non-merge commits,
of which 71 were cross-tree API changes, 21 carried Fixes: tags, and
the remaining ~110 were cleanups, doc conversions, treewide refactors,
and one partial removal (caif_hsi, ca75bcf0a83b).
We are still getting fixes to this code, in the last 10 days there were
3 reports on security@ about CAIF that I have been CCed on.
UAPI constants (AF_CAIF, ARPHRD_CAIF, N_CAIF, VIRTIO_ID_CAIF) and the
SELinux classmap entry are intentionally kept for ABI stability.
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260416182829.1440262-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Tomi needs 7.0 to apply a patch from drm-misc-fixes.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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The TX fast path and reporting paths walk egress QoS mappings without
RTNL. Convert the mapping lists to RCU-protected pointers, use RCU
reader annotations in readers, and defer freeing mapping nodes with an
embedded rcu_head.
This prepares the egress QoS mapping code for safe removal of mapping
nodes in a follow-up change while preserving the current behavior.
Co-developed-by: Yuan Tan <yuantan098@gmail.com>
Signed-off-by: Yuan Tan <yuantan098@gmail.com>
Signed-off-by: Longxuan Yu <ylong030@ucr.edu>
Signed-off-by: Ren Wei <n05ec@lzu.edu.cn>
Link: https://patch.msgid.link/9136768189f8c6d3f824f476c62d2fa1111688e8.1776647968.git.yuantan098@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The kernel-doc comments for vmapping_counter and vmap_ptr in struct
dma_buf reference "@lock" as the protecting lock, but struct dma_buf
no longer has a "lock" member. The mutex was removed in favor of using
the dma_resv lock exclusively. The implementation correctly uses
dma_resv_assert_held(dmabuf->resv) in dma_buf_vmap() and
dma_buf_vunmap(), so update the documentation to reference @resv
instead.
Signed-off-by: gaoxiang17 <gaoxiang17@xiaomi.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20260415054101.535520-1-gxxa03070307@gmail.com
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Pull input updates from Dmitry Torokhov:
- a new charlieplex GPIO keypad driver
- an update to aw86927 driver to support 86938 chip
- an update for Chrome OS EC keyboard driver to support Fn-<key> keymap
extension
- an UAF fix in debugfs teardown in EDT touchscreen driver
- a number of conversions for input drivers to use guard() and __free()
cleanup primitives
- several drivers for bus mice (inport, logibm) and other very old
devices have been removed
- OLPC HGPK PS/2 protocol has been removed as it's been broken and
inactive for 10 something years
- dedicated kpsmoused has been removed from psmouse driver
- other assorted cleanups and fixups
* tag 'input-for-v7.1-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (101 commits)
Input: charlieplex_keypad - add GPIO charlieplex keypad
dt-bindings: input: add GPIO charlieplex keypad
dt-bindings: input: add settling-time-us common property
dt-bindings: input: add debounce-delay-ms common property
Input: imx_keypad - fix spelling mistake "Colums" -> "Columns"
Input: edt-ft5x06 - fix use-after-free in debugfs teardown
Input: ims-pcu - fix heap-buffer-overflow in ims_pcu_process_data()
Input: ct82c710 - remove driver
Input: mk712 - remove driver
Input: logibm - remove driver
Input: inport - remove driver
Input: qt1070 - inline i2c_check_functionality check
Input: qt1050 - inline i2c_check_functionality check
Input: aiptek - validate raw macro indices before updating state
Input: gf2k - skip invalid hat lookup values
Input: xpad - add RedOctane Games vendor id
Input: xpad - remove stale TODO and changelog header
Input: usbtouchscreen - refactor endpoint lookup
Input: aw86927 - add support for Awinic AW86938
dt-bindings: input: awinic,aw86927: Add Awinic AW86938
...
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Pull kgdb update from Daniel Thompson:
"Only a very small update for kgdb this cycle: a single patch from
Kexin Sun that fixes some outdated comments"
* tag 'kgdb-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux:
kgdb: update outdated references to kgdb_wait()
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The NVMe Base Specification 8.3.5.5.9 states that the session key Ks
shall be computed from the ephemeral DH key by applying the hash
function selected by the HashID parameter.
The current implementation stores the raw DH shared secret as the
session key without hashing it. This causes redundant hash operations:
1. Augmented challenge computation (section 8.3.5.5.4) requires
Ca = HMAC(H(g^xy mod p), C). The code compensates by hashing the
unhashed session key in nvme_auth_augmented_challenge() to produce
the correct result.
2. PSK generation (section 8.3.5.5.9) requires PSK = HMAC(Ks, C1 || C2)
where Ks should already be H(g^xy mod p). As the DH shared secret
is always larger than the HMAC block size, HMAC internally hashes
it before use, accidentally producing the correct result.
When using secure channel concatenation with bidirectional
authentication, this results in hashing the DH value three times: twice
for augmented challenge calculations and once during PSK generation.
Fix this by:
- Modifying nvme_auth_gen_shared_secret() to hash the DH shared secret
once after computation: Ks = H(g^xy mod p)
- Removing the hash operation from nvme_auth_augmented_challenge()
as the session key is now already hashed
- Updating session key buffer size from DH key size to hash output size
- Adding specification references in comments
This avoid storing the raw DH shared secret and reduces the number of
hash operations from three to one when using secure channel
concatenation.
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Chris Leech <cleech@redhat.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
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A BPF TCP congestion control program can call bpf_setsockopt() from
its callbacks. In current kernels, if it calls
bpf_setsockopt(TCP_NODELAY) from cwnd_event_tx_start(), the call can
re-enter the TCP transmit path before the outer tcp_transmit_skb()
has completed and advanced the send head.
This can re-trigger CA_EVENT_TX_START and lead to unbounded recursion:
tcp_transmit_skb()
-> tcp_event_data_sent()
-> tcp_ca_event(sk, CA_EVENT_TX_START)
-> cwnd_event_tx_start()
-> bpf_setsockopt(TCP_NODELAY)
-> tcp_push_pending_frames()
-> tcp_write_xmit()
-> tcp_transmit_skb()
This leads to unbounded recursion and can overflow the kernel stack.
Reject TCP_NODELAY with -EOPNOTSUPP for bpf-tcp-cc by introducing
a dedicated setsockopt proto for BPF_PROG_TYPE_STRUCT_OPS TCP
congestion control programs. To keep it simple, all tcp-cc ops is
rejected for TCP_NODELAY.
Fixes: 7e41df5dbba2 ("bpf: Add a few optnames to bpf_setsockopt")
Suggested-by: Martin KaFai Lau <martin.lau@linux.dev>
Signed-off-by: KaFai Wan <kafai.wan@linux.dev>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Reviewed-by: Jiayuan Chen <jiayuan.chen@linux.dev>
Link: https://patch.msgid.link/20260421155804.135786-3-kafai.wan@linux.dev
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Pull Hyper-V updates from Wei Liu:
- Fix cross-compilation for hv tools (Aditya Garg)
- Fix vmemmap_shift exceeding MAX_FOLIO_ORDER in mshv_vtl (Naman Jain)
- Limit channel interrupt scan to relid high water mark (Michael
Kelley)
- Export hv_vmbus_exists() and use it in pci-hyperv (Dexuan Cui)
- Fix cleanup and shutdown issues for MSHV (Jork Loeser)
- Introduce more tracing support for MSHV (Stanislav Kinsburskii)
* tag 'hyperv-next-signed-20260421' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
x86/hyperv: Skip LP/VP creation on kexec
x86/hyperv: move stimer cleanup to hv_machine_shutdown()
Drivers: hv: vmbus: fix hyperv_cpuhp_online variable shadowing
mshv: Add tracepoint for GPA intercept handling
mshv_vtl: Fix vmemmap_shift exceeding MAX_FOLIO_ORDER
tools: hv: Fix cross-compilation
Drivers: hv: vmbus: Export hv_vmbus_exists() and use it in pci-hyperv
mshv: Introduce tracing support
Drivers: hv: vmbus: Limit channel interrupt scan to relid high water mark
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Johan Hovold <johan@kernel.org> says:
Make sure to call controller cleanup() if spi_setup() fails while
registering a device to avoid leaking any resources allocated by
setup().
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The controller cleanup() callback is no longer called when releasing a
device, but rather when deregistering it (and on registration failures).
Fixes: c7299fea6769 ("spi: Fix spi device unregister flow")
Cc: Saravana Kannan <saravanak@kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260410154907.129248-3-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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After running xfstest generic/751, in certain conditions, can have
a writeback IO stuck while experiencing one of the two patterns.
Pattern#1: writeback IO experiences ENOSPC on an offset smaller
than the filesize. Example,
write offset=0 len=4096 how=unstable OK
write offset=8192 len=4096 how=unstable OK
write offset=12288 len=4096 how=unstable ENOSPC
write offset=4096 len=4096 how=unstable ENOSPC
client sends a commit and receives a verifier which is different
from the last successful write. It marks pages dirty and writeback
retries. But it again send writes unstable and gets into the same
pattern, running into the ENOSPC error and sending a commit because
writes were sent at unstable.
Pattern#2: an unstable write followed by a short write and ENOSPC.
write offset=0 len=4096 how=unstable OK
write offset=4096 len=4096 how=unstable returns OK but count=100
write offset=4197 len=3996 how=stable returns ENOSPC
client send a commit and receives a verifier different from
the last unstable write. The same behaviour is retried in a loop.
Instead, this patch proposes to identify those conditions and mark
requests to be done synchronously instead. Previous solution tried
to mark it in the nfs_page, however that's not persistent thus
instead mark it in the nfs_open_context.
Furthermore, the same problem occurs during localio code path so
recognize that IO needs to be done sync in that case as well.
Signed-off-by: Olga Kornievskaia <okorniev@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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Pull f2fs updates from Jaegeuk Kim:
"In this round, the changes primarily focus on resolving race
conditions, memory safety issues (UAF), and improving the robustness
of garbage collection (GC), and folio management.
Enhancements:
- add page-order information for large folio reads in iostat
- add defrag_blocks sysfs node
Bug fixes:
- fix uninitialized kobject put in f2fs_init_sysfs()
- disallow setting an extension to both cold and hot
- fix node_cnt race between extent node destroy and writeback
- preserve previous reserve_{blocks,node} value when remount
- freeze GC and discard threads quickly
- fix false alarm of lockdep on cp_global_sem lock
- fix data loss caused by incorrect use of nat_entry flag
- skip empty sections in f2fs_get_victim
- fix inline data not being written to disk in writeback path
- fix fsck inconsistency caused by FGGC of node block
- fix fsck inconsistency caused by incorrect nat_entry flag usage
- call f2fs_handle_critical_error() to set cp_error flag
- fix fiemap boundary handling when read extent cache is incomplete
- fix use-after-free of sbi in f2fs_compress_write_end_io()
- fix UAF caused by decrementing sbi->nr_pages[] in f2fs_write_end_io()
- fix incorrect file address mapping when inline inode is unwritten
- fix incomplete search range in f2fs_get_victim when f2fs_need_rand_seg is enabled
- avoid memory leak in f2fs_rename()"
* tag 'f2fs-for-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (35 commits)
f2fs: add page-order information for large folio reads in iostat
f2fs: do not support mmap write for large folio
f2fs: fix uninitialized kobject put in f2fs_init_sysfs()
f2fs: protect extension_list reading with sb_lock in f2fs_sbi_show()
f2fs: disallow setting an extension to both cold and hot
f2fs: fix node_cnt race between extent node destroy and writeback
f2fs: allow empty mount string for Opt_usr|grp|projjquota
f2fs: fix to preserve previous reserve_{blocks,node} value when remount
f2fs: invalidate block device page cache on umount
f2fs: fix to freeze GC and discard threads quickly
f2fs: fix to avoid uninit-value access in f2fs_sanity_check_node_footer
f2fs: fix false alarm of lockdep on cp_global_sem lock
f2fs: fix data loss caused by incorrect use of nat_entry flag
f2fs: fix to skip empty sections in f2fs_get_victim
f2fs: fix inline data not being written to disk in writeback path
f2fs: fix fsck inconsistency caused by FGGC of node block
f2fs: fix fsck inconsistency caused by incorrect nat_entry flag usage
f2fs: fix to do sanity check on dcc->discard_cmd_cnt conditionally
f2fs: refactor node footer flag setting related code
f2fs: refactor f2fs_move_node_folio function
...
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Pull dax updates from Ira Weiny:
"The series adds DAX support required for the upcoming fuse/famfs file
system.[1] The support here is required because famfs is backed by
devdax rather than pmem. This all lays the groundwork for using shared
memory as a file system"
Link: https://lore.kernel.org/all/0100019d43e5f632-f5862a3e-361c-4b54-a9a6-96c242a8f17a-000000@email.amazonses.com/ [1]
* tag 'libnvdimm-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
dax/fsdev: fix uninitialized kaddr in fsdev_dax_zero_page_range()
dax: export dax_dev_get()
dax: Add fs_dax_get() func to prepare dax for fs-dax usage
dax: Add dax_set_ops() for setting dax_operations at bind time
dax: Add dax_operations for use by fs-dax on fsdev dax
dax: Save the kva from memremap
dax: add fsdev.c driver for fs-dax on character dax
dax: Factor out dax_folio_reset_order() helper
dax: move dax_pgoff_to_phys from [drivers/dax/] device.c to bus.c
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Outside of the EFI tpm code, the TPM_MEMREMAP()/TPM_MEMUNMAP functions are
defined as trivial macros, leading to the mapping_size variable ending
up unused:
In file included from drivers/char/tpm/tpm-sysfs.c:16:
In file included from drivers/char/tpm/tpm.h:28:
include/linux/tpm_eventlog.h:167:6: error: variable 'mapping_size' set but not used [-Werror,-Wunused-but-set-variable]
167 | int mapping_size;
Turn the stubs into inline functions to avoid this warning.
Cc: stable@vger.kernel.org # v5.3+
Fixes: c46f3405692d ("tpm: Reserve the TPM final events table")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
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The function kgdb_wait() was folded into the static function
kgdb_cpu_enter() by commit 62fae312197a ("kgdb: eliminate
kgdb_wait(), all cpus enter the same way"). Update the four stale
references accordingly:
- include/linux/kgdb.h and arch/x86/kernel/kgdb.c: the
kgdb_roundup_cpus() kdoc describes what other CPUs are rounded up
to call. Because kgdb_cpu_enter() is static, the correct public
entry point is kgdb_handle_exception(); also fix a pre-existing
grammar error ("get them be" -> "get them into") and reflow the
text.
- kernel/debug/debug_core.c: replace with the generic description
"the debug trap handler", since the actual entry path is
architecture-specific.
- kernel/debug/gdbstub.c: kgdb_cpu_enter() is correct here (it
describes internal state, not a call target); add the missing
parentheses.
Suggested-by: Daniel Thompson <daniel@riscstar.com>
Assisted-by: unnamed:deepseek-v3.2 coccinelle
Signed-off-by: Kexin Sun <kexinsun@smail.nju.edu.cn>
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Pull clk updates from Stephen Boyd:
"We've finally gotten rid of the struct clk_ops::round_rate() code
after months of effort from Brian Masney. Now the only option is to
use determine_rate(), which is good because that takes a struct
argument instead of just a couple unsigned longs, allowing us to
easily modify the way we determine and set rates in the clk tree.
Beyond that core framework change we've got the typical pile of new
SoC clk driver additions, fixes for clk data and/or adding missing
clks because the consumer driver using those clks wasn't ready, etc.
The usual suspects are all here: Qualcomm, Samsung, Mediatek, and
Rockchip along with some newcomers making RISC-V SoCs like ESWIN's
eic700 and Tenstorrent's Atlantis. The clk driver side of this looks
pretty normal.
Core:
- Remove the round_rate() clk op (yay!)
New Drivers:
- ESWIN eic700 SoC clk support
- Econet EN751221 SoC clock/reset support
- Global TCSR, RPMh, and display clock controller support for the
Qualcomm Eliza platform
- TCSR, the multiple global, and the RPMh clock controller support
for the Qualcomm Nord platform
- GPU clock controller support for Qualcomm SM8750
- Video and GPU clock controller support for Qualcomm Glymur
- Global clock controller support for Qualcomm IPQ5210
- Axis ARTPEC-9: Add new PLL clocks and new drivers for eight clock
controllers on the SoC
- ExynosAutov920: Add G3D (GPU) clock controller
- Clock driver for the Rockchip RV1103B SoC
- Initial support for the Renesas RZ/G3L (R9A08G046) SoC
- Clock and reset controllers (e.g. PRCM) in the Tenstorrent Atlantis SoC"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (132 commits)
clk: visconti: pll: initialize clk_init_data to zero
clk: fsl-sai: Add MCLK generation support
clk: fsl-sai: Extract clock setup into fsl_sai_clk_register()
dt-bindings: clock: fsl-sai: Document clock-cells = <1> support
clk: fsl-sai: Add i.MX8M support with 8 byte register offset
clk: fsl-sai: Sort the headers
dt-bindings: clock: fsl-sai: Document i.MX8M support
clk: qcom: gcc: Add multiple global clock controller driver for Nord SoC
clk: qcom: rpmh: Add support for Nord rpmh clocks
clk: qcom: Add TCSR clock driver for Nord SoC
dt-bindings: clock: qcom: Add Nord Global Clock Controller
dt-bindings: clock: qcom-rpmhcc: Add support for Nord SoCs
dt-bindings: clock: qcom: Document the Nord SoC TCSR Clock Controller
clk: qcom: gcc-x1e80100: Keep GCC USB QTB clock always ON
clk: qcom: Constify list of critical CBCR registers
clk: qcom: Constify qcom_cc_driver_data
clk: qcom: videocc-glymur: Constify qcom_cc_desc
clk: qcom: Add a driver for SM8750 GPU clocks
dt-bindings: clock: qcom: Add SM8750 GPU clocks
clk: qcom: ipq-cmn-pll: Add IPQ8074 SoC support
...
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Based on the comment information, the description within the
`ptp_sts_word_post` section should be changed to "See @ptp_sts_word_pre".
Signed-off-by: Dewei Meng <mengdewei@cqsoftware.com.cn>
Link: https://patch.msgid.link/20260421025808.6572-1-mengdewei@cqsoftware.com.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
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Pull dcache busy loop updates from Al Viro:
"Fix livelocks in shrink_dcache_tree()
If shrink_dcache_tree() finds a dentry in the middle of being killed
by another thread, it has to wait until the victim finishes dying,
gets detached from the tree and ceases to pin its parent.
The way we used to deal with that amounted to busy-wait;
unfortunately, it's not just inefficient but can lead to reliably
reproducible hard livelocks.
Solved by having shrink_dentry_tree() attach a completion to such
dentry, with dentry_unlist() calling complete() on all objects
attached to it. With a bit of care it can be done without growing
struct dentry or adding overhead in normal case"
* tag 'pull-dcache-busy-wait' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
get rid of busy-waiting in shrink_dcache_tree()
dcache.c: more idiomatic "positives are not allowed" sanity checks
struct dentry: make ->d_u anonymous
for_each_alias(): helper macro for iterating through dentries of given inode
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Add a per-device netdev_hw_addr_list cache (rx_mode_addr_cache) that
allows __hw_addr_list_snapshot() and __hw_addr_list_reconcile() to
reuse previously allocated entries instead of hitting GFP_ATOMIC on
every snapshot cycle.
snapshot pops entries from the cache when available, falling back to
__hw_addr_create(). reconcile splices both snapshot lists back into
the cache via __hw_addr_splice(). The cache is flushed in
free_netdev().
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260416185712.2155425-4-sdf@fomichev.me
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Add ndo_set_rx_mode_async callback that drivers can implement instead
of the legacy ndo_set_rx_mode. The legacy callback runs under the
netif_addr_lock spinlock with BHs disabled, preventing drivers from
sleeping. The async variant runs from a work queue with rtnl_lock and
netdev_lock_ops held, in fully sleepable context.
When __dev_set_rx_mode() sees ndo_set_rx_mode_async, it schedules
netdev_rx_mode_work instead of calling the driver inline. The work
function takes two snapshots of each address list (uc/mc) under
the addr_lock, then drops the lock and calls the driver with the
work copies. After the driver returns, it reconciles the snapshots
back to the real lists under the lock.
Add netif_rx_mode_sync() to opportunistically execute the pending
workqueue update inline, so that rx mode changes are committed
before returning to userspace:
- dev_change_flags (SIOCSIFFLAGS / RTM_NEWLINK)
- dev_set_promiscuity
- dev_set_allmulti
- dev_ifsioc SIOCADDMULTI / SIOCDELMULTI
- do_setlink (RTM_SETLINK)
Note that some deep hierarchies still do skip the lower updates via:
- dev_uc_sync
- dev_mc_sync
If we do end up hitting user-visible issues, we can add more calls to
netif_rx_mode_sync in specific places. But hopefully we should not,
the actual user-visible lists are still synced, it's that just HW state
that might be lagging.
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260416185712.2155425-3-sdf@fomichev.me
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Introduce __hw_addr_list_snapshot() and __hw_addr_list_reconcile()
for use by the upcoming ndo_set_rx_mode_async callback.
The async rx_mode path needs to snapshot the device's unicast and
multicast address lists under the addr_lock, hand those snapshots
to the driver (which may sleep), and then propagate any sync_cnt
changes back to the real lists. Two identical snapshots are taken:
a work copy for the driver to pass to __hw_addr_sync_dev() and a
reference copy to compute deltas against.
__hw_addr_list_reconcile() walks the reference snapshot comparing
each entry against the work snapshot to determine what the driver
synced or unsynced. It then applies those deltas to the real list,
handling concurrent modifications:
- If the real entry was concurrently removed but the driver synced
it to hardware (delta > 0), re-insert a stale entry so the next
work run properly unsyncs it from hardware.
- If the entry still exists, apply the delta normally. An entry
whose refcount drops to zero is removed.
# dev_addr_test_snapshot_benchmark: 1024 addrs x 1000 snapshots: 89872802 ns total, 89872 ns/iter
# dev_addr_test_snapshot_benchmark.speed: slow
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260416185712.2155425-2-sdf@fomichev.me
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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This patch adds a helper function, list_splice_rcu(), to safely splice
a private (non-RCU-protected) list into an RCU-protected list.
The function ensures that only the pointer visible to RCU readers
(prev->next) is updated using rcu_assign_pointer(), while the rest of
the list manipulations are performed with regular assignments, as the
source list is private and not visible to concurrent RCU readers.
This is useful for moving elements from a private list into a global
RCU-protected list, ensuring safe publication for RCU readers.
Subsystems with some sort of batching mechanism from userspace can
benefit from this new function.
The function __list_splice_rcu() has been added for clarity and to
follow the same pattern as in the existing list_splice*() interfaces,
where there is a check to ensure that the list to splice is not
empty. Note that __list_splice_rcu() has no documentation for this
reason.
Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Inserts past 75% load call schedule_work(&ht->run_work) to kick an
async resize. If a caller holds a raw spinlock (e.g. an
insecure_elasticity user), schedule_work() under that lock records
caller_lock -> pool->lock -> pi_lock -> rq->__lock
A cycle forms if any of these locks is acquired in the reverse
direction elsewhere. sched_ext, the only current insecure_elasticity
user, hits this: it holds scx_sched_lock across rhashtable inserts of
sub-schedulers, while scx_bypass() takes rq->__lock -> scx_sched_lock.
Exercising the resize path produces:
Chain exists of:
&pool->lock --> &rq->__lock --> scx_sched_lock
Bounce the kick from the insert paths through irq_work so
schedule_work() runs from hard IRQ context with the caller's lock no
longer held. rht_deferred_worker()'s self-rearm on error stays on
schedule_work(&ht->run_work) - the worker runs in process context with
no caller lock held, and keeping the self-requeue on @run_work lets
cancel_work_sync() in rhashtable_free_and_destroy() drain it.
v3: Keep rht_deferred_worker()'s self-rearm on schedule_work(&run_work).
Routing it through irq_work in v2 broke cancel_work_sync()'s
self-requeue handling - an irq_work queued after irq_work_sync()
returned but while cancel_work_sync() was still waiting could fire
post-teardown.
v2: Bounce unconditionally instead of gating on insecure_elasticity,
as suggested by Herbert.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
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Pull printk updates from Petr Mladek:
- Fix printk ring buffer initialization and sanity checks
- Workaround printf kunit test compilation with gcc < 12.1
- Add IPv6 address printf format tests
- Misc code and documentation cleanup
* tag 'printk-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
printf: Compile the kunit test with DISABLE_BRANCH_PROFILING DISABLE_BRANCH_PROFILING
lib/vsprintf: use bool for local decode variable
lib/hexdump: print_hex_dump_bytes() calls print_hex_dump_debug()
printk: ringbuffer: fix errors in comments
printk_ringbuffer: Add sanity check for 0-size data
printk_ringbuffer: Fix get_data() size sanity check
printf: add IPv6 address format tests
printk: Fix _DESCS_COUNT type for 64-bit systems
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Pull entry cleanup from Ingo Molnar:
"Remove the unused ARCH_SYSCALL_WORK_{ENTER,EXIT} flags"
* tag 'core-urgent-2026-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
entry: Kill ARCH_SYSCALL_WORK_{ENTER,EXIT}
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Pull x86 platform driver updates from Ilpo Järvinen:
"asus-wmi:
- Retain battery charge threshold during boot which avoids
unsolicited change to 100%. Return -ENODATA when the limit
is not yet known
- Improve screenpad power/brightness handling consistency
- Fix screenpad brightness range
barco-p50-gpio:
- Normalize gpio_get return values
bitland-mifs-wmi:
- Add driver for Bitland laptops (supports platform profile,
hwmon, kbd backlight, gpu mode, hotkeys, and fan boost)
dell_rbu:
- Fix using uninitialized value in sysfs write function
dell-wmi-sysman:
- Respect destination length when constructing enum strings
hp-wmi:
- Propagate fan setting apply failures and log an error
- Fix sysfs write vs work handler cancel_delayed_work_sync() deadlock
- Correct keepalive schedule_delayed_work() to mod_delayed_work()
- Fix u8 underflows in GPU delta calculation
- Use mutex to protect fan pwm/mode
- Ignore kbd backlight and FnLock key events that are handled by FW
- Fix fan table parsing (use correct field)
- Add support for Omen 14-fb0xxx, 16-n0xxx, 16-wf1xxx, and
Omen MAX 16-ak0xxxx
input: trackpoint & thinkpad_acpi:
- Enable doubletap by default and add sysfs enable/disable
int3472:
- Add support for GPIO type 0x02 (IR flood LED)
intel-speed-select: (updated to v1.26)
- Avoid using current base frequency as maximum
- Fix CPU extended family ID decoding
- Fix exit code
- Improve error reporting
intel/vsec:
- Refactor to support ACPI-enumerated PMT endpoints.
pcengines-apuv2:
- Attach software node to the gpiochip
uniwill:
- Refactor hwmon to smaller parts to accomodate HW diversity
- Support USB-C power/performance priority switch through sysfs
- Add another XMG Fusion 15 (L19) DMI vendor
- Enable fine-grained features to device lineup mapping
wmi:
- Perform output size check within WMI core to allow simpler WMI
drivers
misc:
- acpi_driver -> platform driver conversions (a large number of
changes from Rafael J. Wysocki)
- cleanups / refactoring / improvements"
* tag 'platform-drivers-x86-v7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (106 commits)
platform/x86: hp-wmi: Add support for Omen 16-wf1xxx (8C77)
platform/x86: hp-wmi: Add support for Omen 16-n0xxx (8A44)
platform/x86: hp-wmi: Add support for OMEN MAX 16-ak0xxx (8D87)
platform/x86: hp-wmi: fix fan table parsing
platform/x86: hp-wmi: add Omen 14-fb0xxx (board 8C58) support
platform/wmi: Replace .no_notify_data with .min_event_size
platform/wmi: Extend wmidev_query_block() to reject undersized data
platform/wmi: Extend wmidev_invoke_method() to reject undersized data
platform/wmi: Prepare to reject undersized unmarshalling results
platform/wmi: Convert drivers to use wmidev_invoke_procedure()
platform/wmi: Add wmidev_invoke_procedure()
platform/x86: int3472: Add support for GPIO type 0x02 (IR flood LED)
platform/x86: int3472: Parameterize LED con_id in registration
platform/x86: int3472: Rename pled to led in LED registration code
platform/x86: int3472: Use local variable for LED struct access
platform/x86: thinkpad_acpi: remove obsolete TODO comment
platform/x86: dell-wmi-sysman: bound enumeration string aggregation
platform/x86: hp-wmi: Ignore backlight and FnLock events
platform/x86: uniwill-laptop: Fix signedness bug
platform/x86: dell_rbu: avoid uninit value usage in packet_size_write()
...
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RFC 2516 Section 7 states that Protocol Field Compression (PFC) is NOT
RECOMMENDED for PPPoE. In practice, pppd does not support negotiating
PFC for PPPoE sessions, and the current PPPoE driver assumes an
uncompressed (2-byte) protocol field. However, the generic PPP layer
function ppp_input() is not aware of the negotiation result, and still
accepts PFC frames.
If a peer with a broken implementation or an attacker sends a frame with
a compressed (1-byte) protocol field, the subsequent PPP payload is
shifted by one byte. This causes the network header to be 4-byte
misaligned, which may trigger unaligned access exceptions on some
architectures.
To reduce the attack surface, drop PPPoE PFC frames. Introduce
ppp_skb_is_compressed_proto() helper function to be used in both
ppp_generic.c and pppoe.c to avoid open-coding.
Fixes: 7fb1b8ca8fa1 ("ppp: Move PFC decompression to PPP generic layer")
Signed-off-by: Qingfang Deng <qingfang.deng@linux.dev>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260415022456.141758-2-qingfang.deng@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Pull MFD updates from Lee Jones:
"Core:
- Add a resource-managed version of alloc_workqueue()
(`devm_alloc_workqueue()`)
- Preserve the Open Firmware (OF) node when an ACPI handle
is present
Apple SMC:
- Wire up the Apple SMC power driver by adding a new MFD cell
Atmel HLCDC:
- Fetch the LVDS PLL clock as a fallback if the generic sys_clk
is unavailable
Broadcom BCM2835 PM:
- Add support for the BCM2712 power management device
- Introduce a hardware type identifier to distinguish SoC variants
Congatec CGBC, KEMPLD, RSMU, Si476x:
- Fix various kernel-doc warnings and correct struct member names
DLN2:
- Drop redundant USB device references and switch to managed
resource allocations
- Update bare 'unsigned' types to 'unsigned int'
ENE KB3930:
- Use the of_device_is_system_power_controller() wrapper
EZX PCAP:
- Avoid rescheduling after destroying the workqueue by switching
to a device-managed workqueue
- Drop redundant memory allocation error messages
- Return directly instead of using empty goto statements
Freescale i.MX25 TSADC:
- Convert devicetree bindings from TXT to YAML format
Freescale MC13xxx:
- Fix a memory leak in subdevice platform data allocation by
using devm_kmemdup()
Intel LPC ICH:
- Expose a software node for the GPIO controller cell to fix
GPIO lookups
Intel LPSS:
- Add PCI IDs for the Intel Nova Lake-H platform
Maxim MAX77620:
- Convert devicetree bindings from TXT to YAML format
- Document an optional I2C address for the MAX77663 RTC device
Maxim MAX77705:
- Make the max77705_pm_ops variable static to resolve a
sparse warning
MediaTek MT6397:
- Correct the hardware CIDs for the MT6328, MT6331, and MT6332
PMICs to allow proper driver binding
ROHM BD71828:
- Enable system wakeup via the power button
ROHM BD72720:
- Add a new compatible string for the ROHM BD73900 PMIC
SpacemiT P1:
- Drop the deprecated "vin-supply" property from the devicetree
bindings
- Add individual regulator supply properties to match actual
hardware topology
STMicroelectronics STPMIC1:
- Attempt system shutdown a second time to handle transient I2C
communication failures
Viperboard:
- Drop redundant USB device references"
* tag 'mfd-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (28 commits)
mfd: core: Preserve OF node when ACPI handle is present
mfd: ene-kb3930: Use of_device_is_system_power_controller() wrapper
mfd: intel-lpss: Add Intel Nova Lake-H PCI IDs
dt-bindings: mfd: max77620: Document optional RTC address for MAX77663
dt-bindings: mfd: max77620: Convert to DT schema
mfd: ezx-pcap: Avoid rescheduling after destroying workqueue
mfd: ezx-pcap: Return directly instead of empty gotos
mfd: ezx-pcap: Drop memory allocation error message
mfd: bcm2835-pm: Add BCM2712 PM device support
mfd: bcm2835-pm: Introduce SoC-specific type identifier
dt-bindings: mfd: bd72720: Add ROHM BD73900
mfd: si476x: Fix kernel-doc warnings
mfd: rsmu: Remove a empty kernel-doc line
mfd: kempld: Fix kernel-doc struct member names
mfd: congatec: Fix kernel-doc struct member names
dt-bindings: mfd: Convert fsl-imx25-tsadc.txt to yaml format
mfd: viperboard: Drop redundant device reference
mfd: dln2: Switch to managed resources and fix bare unsigned types
mfd: macsmc: Wire up Apple SMC power driver
mfd: mt6397: Properly fix CID of MT6328, MT6331 and MT6332
...
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Pull rdma updates from Jason Gunthorpe:
"The usual collection of driver changes, more core infrastructure
updates that typical this cycle:
- Minor cleanups and kernel-doc fixes in bnxt_re, hns, rdmavt, efa,
ocrdma, erdma, rtrs, hfi1, ionic, and pvrdma
- New udata validation framework and driver updates
- Modernize CQ creation interface in mlx4 and mlx5, manage CQ umem in
core
- Promote UMEM to a core component, split out DMA block iterator
logic
- Introduce FRMR pools with aging, statistics, pinned handles, and
netlink control and use it in mlx5
- Add PCIe TLP emulation support in mlx5
- Extend umem to work with revocable pinned dmabuf's and use it in
irdma
- More net namespace improvements for rxe
- GEN4 hardware support in irdma
- First steps to MW and UC support in mana_ib
- Support for CQ umem and doorbells in bnxt_re
- Drop opa_vnic driver from hfi1
Fixes:
- IB/core zero dmac neighbor resolution race
- GID table memory free
- rxe pad/ICRC validation and r_key async errors
- mlx4 external umem for CQ
- umem DMA attributes on unmap
- mana_ib RX steering on RSS QP destroy"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (116 commits)
RDMA/core: Fix user CQ creation for drivers without create_cq
RDMA/ionic: bound node_desc sysfs read with %.64s
IB/core: Fix zero dmac race in neighbor resolution
RDMA/mana_ib: Support memory windows
RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv
RDMA/core: Prefer NLA_NUL_STRING
RDMA/core: Fix memory free for GID table
RDMA/hns: Remove the duplicate calls to ib_copy_validate_udata_in()
RDMA: Remove redundant = {} for udata req structs
RDMA/irdma: Add missing comp_mask check in alloc_ucontext
RDMA/hns: Add missing comp_mask check in create_qp
RDMA/mlx5: Pull comp_mask validation into ib_copy_validate_udata_in_cm()
RDMA: Use ib_copy_validate_udata_in_cm() for zero comp_mask
RDMA/hns: Use ib_copy_validate_udata_in()
RDMA/mlx4: Use ib_copy_validate_udata_in() for QP
RDMA/mlx4: Use ib_copy_validate_udata_in()
RDMA/mlx5: Use ib_copy_validate_udata_in() for MW
RDMA/mlx5: Use ib_copy_validate_udata_in() for SRQ
RDMA/pvrdma: Use ib_copy_validate_udata_in() for srq
RDMA: Use ib_copy_validate_udata_in() for implicit full structs
...
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Pull nfsd updates from Chuck Lever:
- filehandle signing to defend against filehandle-guessing attacks
(Benjamin Coddington)
The server now appends a SipHash-2-4 MAC to each filehandle when
the new "sign_fh" export option is enabled. NFSD then verifies
filehandles received from clients against the expected MAC;
mismatches return NFS error STALE
- convert the entire NLMv4 server-side XDR layer from hand-written C to
xdrgen-generated code, spanning roughly thirty patches (Chuck Lever)
XDR functions are generally boilerplate code and are easy to get
wrong. The goals of this conversion are improved memory safety, lower
maintenance burden, and groundwork for eventual Rust code generation
for these functions.
- improve pNFS block/SCSI layout robustness with two related changes
(Dai Ngo)
SCSI persistent reservation fencing is now tracked per client and
per device via an xarray, to avoid both redundant preempt operations
on devices already fenced and a potential NFSD deadlock when all nfsd
threads are waiting for a layout return.
- scalability and infrastructure improvements
Sincere thanks to all contributors, reviewers, testers, and bug
reporters who participated in the v7.1 NFSD development cycle.
* tag 'nfsd-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (83 commits)
NFSD: Docs: clean up pnfs server timeout docs
nfsd: fix comment typo in nfsxdr
nfsd: fix comment typo in nfs3xdr
NFSD: convert callback RPC program to per-net namespace
NFSD: use per-operation statidx for callback procedures
svcrdma: Use contiguous pages for RDMA Read sink buffers
SUNRPC: Add svc_rqst_page_release() helper
SUNRPC: xdr.h: fix all kernel-doc warnings
svcrdma: Factor out WR chain linking into helper
svcrdma: Add Write chunk WRs to the RPC's Send WR chain
svcrdma: Clean up use of rdma->sc_pd->device
svcrdma: Clean up use of rdma->sc_pd->device in Receive paths
svcrdma: Add fair queuing for Send Queue access
SUNRPC: Optimize rq_respages allocation in svc_alloc_arg
SUNRPC: Track consumed rq_pages entries
svcrdma: preserve rq_next_page in svc_rdma_save_io_pages
SUNRPC: Handle NULL entries in svc_rqst_release_pages
SUNRPC: Allocate a separate Reply page array
SUNRPC: Tighten bounds checking in svc_rqst_replace_page
NFSD: Sign filehandles
...
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Johan Hovold <johan@kernel.org> says:
Turns out we have a few drivers that get the tear down ordering wrong
also when not using device managed registration (cf. [1] and [2]).
Fix this to avoid issues like system errors due to unclocked accesses,
NULL-pointer dereferences, hangs or failed I/O during during
deregistration (e.g. when powering down devices).
Johan
[1] https://lore.kernel.org/lkml/20260409120419.388546-2-johan@kernel.org/
[2] https://lore.kernel.org/lkml/20260410081757.503099-1-johan@kernel.org/
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Pull driver core fixes from Danilo Krummrich:
- Prevent a device from being probed before device_add() has finished
initializing it; gate probe with a "ready_to_probe" device flag to
avoid races with concurrent driver_register() calls
- Fix a kernel-doc warning for DEV_FLAG_COUNT introduced by the above
- Return -ENOTCONN from software_node_get_reference_args() when a
referenced software node is known but not yet registered, allowing
callers to defer probe
- In sysfs_group_attrs_change_owner(), also check is_visible_const();
missed when the const variant was introduced
* tag 'driver-core-7.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core:
driver core: Add kernel-doc for DEV_FLAG_COUNT enum value
sysfs: attribute_group: Respect is_visible_const() when changing owner
software node: return -ENOTCONN when referenced swnode is not registered yet
driver core: Don't let a device probe until it's ready
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Pull USB / Thunderbolt updates from Greg KH:
"Here is the big set of USB and Thunderbolt changes for 7.1-rc1.
Lots of little things in here, nothing major, just constant
improvements, updates, and new features. Highlights are:
- new USB power supply driver support.
These changes did touch outside of drivers/usb/ but got acks from
the relevant mantainers for them.
- dts file updates and conversions
- string function conversions into "safer" ones
- new device quirks
- xhci driver updates
- usb gadget driver minor fixes
- typec driver additions and updates
- small number of thunderbolt driver changes
- dwc3 driver updates and additions of new hardware support
- other minor driver updates
All of these have been in the linux-next tree for a while with no
reported issues"
* tag 'usb-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (176 commits)
usb: dwc3: starfive: Add JHB100 USB 2.0 DRD controller
dt-bindings: usb: dwc3: add support for StarFive JHB100
dt-bindings: usb: atmel,at91sam9rl-udc: convert to DT schema
dt-bindings: usb: atmel,at91rm9200-udc: convert to DT schema
dt-bindings: usb: generic-ehci: fix schema structure and add at91sam9g45 constraints
dt-bindings: usb: generic-ohci: add AT91RM9200 OHCI binding support
arm: dts: at91: remove unused #address-cells/#size-cells from sam9x60 udc node
drivers/usb/host: Fix spelling error 'seperate' -> 'separate'
usbip: tools: add hint when no exported devices are found
USB: serial: iuu_phoenix: fix iuutool author name
usb: gadget: f_ncm: validate minimum block_len in ncm_unwrap_ntb()
usb: gadget: f_phonet: fix skb frags[] overflow in pn_rx_complete()
usb: gadget: f_hid: Add missing error code
usb: typec: cros_ec_ucsi: Load driver from OF and ACPI definitions
dt-bindings: chrome: Add cros-ec-ucsi compatibility to typec binding
USB: of: Simplify with scoped for each OF child loop
usbip: validate number_of_packets in usbip_pack_ret_submit()
usb: gadget: renesas_usb3: validate endpoint index in standard request handlers
usb: core: config: reverse the size check of the SSP isoc endpoint descriptor
usb: typec: ucsi: Set usb mode on partner change
...
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Some users of rhashtable cannot handle insertion failures, and
are happy to accept the consequences of a hash table that having
very long chains.
Restore the insecure_elasticity toggle for these users. In
addition to disabling the chain length checks, this also removes
the emergency resize that would otherwise occur when the hash
table occupancy hits 100% (an async resize is still scheduled
at 75%).
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Tejun Heo <tj@kernel.org>
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Pull tty/serial updates from Greg KH:
"Here is the set of tty and serial driver changes for 7.1-rc1.
Not much here this cycle, biggest thing is the removal of an old
driver that never got any actual hardware support (esp32), and the
second try to moving the tty ports to their own workqueues (first try
was in 7.0-rc1 but was reverted due to problems)
Otherwise it's just a small set of driver updates and some vt modifier
key enhancements.
All have been in linux-next for a while with no reported issues"
* tag 'tty-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (35 commits)
tty: serial: ip22zilog: Fix section mispatch warning
hvc/xen: Check console connection flag
serial: sh-sci: Add support for RZ/G3L RSCI
dt-bindings: serial: renesas,rsci: Document RZ/G3L SoC
tty: atmel_serial: update outdated reference to atmel_tasklet_func()
serial: xilinx_uartps: Drop unused include
serial: qcom-geni: drop stray newline format specifier
serial: 8250: loongson: Enable building on MIPS Loongson64
dt-bindings: serial: 8250: Add Loongson 3A4000 uart compatible
serial: 8250_fintek: Add support for F81214E
tty: tty_port: add workqueue to flip TTY buffer
vt: support ITU-T T.416 color subparameters
serial: qcom-geni: Fix RTS behavior with flow control
tty: serial: imx: keep dma request disabled before dma transfer setup
tty: serial: 8250: Add SystemBase Multi I/O cards
serial: pic32_uart: allow driver to be compiled on all architectures with COMPILE_TEST
serial: tegra: remove Kconfig dependency on APB DMA controller
dt-bindings: serial: amlogic,meson-uart: Add compatible string for A9
dt-bindings: serial: atmel,at91-usart: add microchip,lan9691-usart
serial: auart: check clk_enable() return in console write
...
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Pull more MM updates from Andrew Morton:
- "Eliminate Dying Memory Cgroup" (Qi Zheng and Muchun Song)
Address the longstanding "dying memcg problem". A situation wherein a
no-longer-used memory control group will hang around for an extended
period pointlessly consuming memory
- "fix unexpected type conversions and potential overflows" (Qi Zheng)
Fix a couple of potential 32-bit/64-bit issues which were identified
during review of the "Eliminate Dying Memory Cgroup" series
- "kho: history: track previous kernel version and kexec boot count"
(Breno Leitao)
Use Kexec Handover (KHO) to pass the previous kernel's version string
and the number of kexec reboots since the last cold boot to the next
kernel, and print it at boot time
- "liveupdate: prevent double preservation" (Pasha Tatashin)
Teach LUO to avoid managing the same file across different active
sessions
- "liveupdate: Fix module unloading and unregister API" (Pasha
Tatashin)
Address an issue with how LUO handles module reference counting and
unregistration during module unloading
- "zswap pool per-CPU acomp_ctx simplifications" (Kanchana Sridhar)
Simplify and clean up the zswap crypto compression handling and
improve the lifecycle management of zswap pool's per-CPU acomp_ctx
resources
- "mm/damon/core: fix damon_call()/damos_walk() vs kdmond exit race"
(SeongJae Park)
Address unlikely but possible leaks and deadlocks in damon_call() and
damon_walk()
- "mm/damon/core: validate damos_quota_goal->nid" (SeongJae Park)
Fix a couple of root-only wild pointer dereferences
- "Docs/admin-guide/mm/damon: warn commit_inputs vs other params race"
(SeongJae Park)
Update the DAMON documentation to warn operators about potential
races which can occur if the commit_inputs parameter is altered at
the wrong time
- "Minor hmm_test fixes and cleanups" (Alistair Popple)
Bugfixes and a cleanup for the HMM kernel selftests
- "Modify memfd_luo code" (Chenghao Duan)
Cleanups, simplifications and speedups to the memfd_lou code
- "mm, kvm: allow uffd support in guest_memfd" (Mike Rapoport)
Support for userfaultfd in guest_memfd
- "selftests/mm: skip several tests when thp is not available" (Chunyu
Hu)
Fix several issues in the selftests code which were causing breakage
when the tests were run on CONFIG_THP=n kernels
- "mm/mprotect: micro-optimization work" (Pedro Falcato)
A couple of nice speedups for mprotect()
- "MAINTAINERS: update KHO and LIVE UPDATE entries" (Pratyush Yadav)
Document upcoming changes in the maintenance of KHO, LUO, memfd_luo,
kexec, crash, kdump and probably other kexec-based things - they are
being moved out of mm.git and into a new git tree
* tag 'mm-stable-2026-04-18-02-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (121 commits)
MAINTAINERS: add page cache reviewer
mm/vmscan: avoid false-positive -Wuninitialized warning
MAINTAINERS: update Dave's kdump reviewer email address
MAINTAINERS: drop include/linux/liveupdate from LIVE UPDATE
MAINTAINERS: drop include/linux/kho/abi/ from KHO
MAINTAINERS: update KHO and LIVE UPDATE maintainers
MAINTAINERS: update kexec/kdump maintainers entries
mm/migrate_device: remove dead migration entry check in migrate_vma_collect_huge_pmd()
selftests: mm: skip charge_reserved_hugetlb without killall
userfaultfd: allow registration of ranges below mmap_min_addr
mm/vmstat: fix vmstat_shepherd double-scheduling vmstat_update
mm/hugetlb: fix early boot crash on parameters without '=' separator
zram: reject unrecognized type= values in recompress_store()
docs: proc: document ProtectionKey in smaps
mm/mprotect: special-case small folios when applying permissions
mm/mprotect: move softleaf code out of the main function
mm: remove '!root_reclaim' checking in should_abort_scan()
mm/sparse: fix comment for section map alignment
mm/page_io: use sio->len for PSWPIN accounting in sio_read_complete()
selftests/mm: transhuge_stress: skip the test when thp not available
...
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Pull pin control updates from Linus Walleij:
"Core changes:
- Perform basic checks on pin config properties so as not to allow
directly contradictory settings such as setting a pin to more than
one bias or drive mode
- Handle input-threshold-voltage-microvolt property
- Introduce pinctrl_gpio_get_config() handling in the core for SCMI
GPIO using pin control
New drivers:
- GPIO-by-pin control driver (also appearing in the GPIO pull
request) fulfilling a promise on a comment from Grant Likely many
years ago: "can't GPIO just be a front-end for pin control?" it
turns out it can, if and only if you design something new from
scratch, such as SCMI
- Broadcom BCM7038 as a pinctrl-single delegate
- Mobileye EyeQ6Lplus OLB pin controller
- Qualcomm Eliza and Hawi families TLMM pin controllers
- Qualcomm SDM670 and Milos family LPASS LPI pin controllers
- Qualcomm IPQ5210 pin controller
- Realtek RTD1625 pin controller support
- Rockchip RV1103B pin controller support
- Texas Instruments AM62L as a pinctrl-single delegate
Improvements:
- Set config implementation for the Spacemit K1 pin controller"
* tag 'pinctrl-v7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (84 commits)
pinctrl: qcom: Add Hawi pinctrl driver
dt-bindings: pinctrl: qcom: Describe Hawi TLMM block
dt-bindings: pinctrl: pinctrl-max77620: convert to DT schema
pinctrl: single: Add bcm7038-padconf compatible matching
dt-bindings: pinctrl: pinctrl-single: Add brcm,bcm7038-padconf
dt-bindings: pinctrl: apple,pinctrl: Add t8122 compatible
pinctrl: qcom: sdm670-lpass-lpi: label variables as static
pinctrl: sophgo: pinctrl-sg2044: Fix wrong module description
pinctrl: sophgo: pinctrl-sg2042: Fix wrong module description
pinctrl: qcom: add sdm670 lpi tlmm
dt-bindings: pinctrl: qcom: Add SDM670 LPASS LPI pinctrl
dt-bindings: qcom: lpass-lpi-common: add reserved GPIOs property
pinctrl: qcom: Introduce IPQ5210 TLMM driver
dt-bindings: pinctrl: qcom: add IPQ5210 pinctrl
pinctrl: qcom: Drop redundant intr_target_reg on modern SoCs
pinctrl: qcom: eliza: Fix interrupt target bit
pinctrl: core: Don't use "proxy" headers
pinctrl: amd: Support new ACPI ID AMDI0033
pinctrl: renesas: rzg2l: Drop superfluous blank line
pinctrl: renesas: rzg2l: Fix save/restore of {IOLH,IEN,PUPD,SMT} registers
...
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Pull memblock updates from Mike Rapoport:
- improve debuggability of reserve_mem kernel parameter handling with
print outs in case of a failure and debugfs info showing what was
actually reserved
- Make memblock_free_late() and free_reserved_area() use the same core
logic for freeing the memory to buddy and ensure it takes care of
updating memblock arrays when ARCH_KEEP_MEMBLOCK is enabled.
* tag 'memblock-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
x86/alternative: delay freeing of smp_locks section
memblock: warn when freeing reserved memory before memory map is initialized
memblock, treewide: make memblock_free() handle late freeing
memblock: make free_reserved_area() update memblock if ARCH_KEEP_MEMBLOCK=y
memblock: extract page freeing from free_reserved_area() into a helper
memblock: make free_reserved_area() more robust
mm: move free_reserved_area() to mm/memblock.c
powerpc: opal-core: pair alloc_pages_exact() with free_pages_exact()
powerpc: fadump: pair alloc_pages_exact() with free_pages_exact()
memblock: reserve_mem: fix end caclulation in reserve_mem_release_by_name()
memblock: move reserve_bootmem_range() to memblock.c and make it static
memblock: Add reserve_mem debugfs info
memblock: Print out errors on reserve_mem parser
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Add field for missing lock around the hrtimer. Add 'Required' where
the core checks for valid entries.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
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The comment in mmzone.h currently details exhaustive per-architecture
bit-width lists and explains alignment using min(PAGE_SHIFT,
PFN_SECTION_SHIFT). Such details risk falling out of date over time and
may inadvertently be left un-updated.
We always expect a single section to cover full pages. Therefore, we can
safely assume that PFN_SECTION_SHIFT is large enough to accommodate
SECTION_MAP_LAST_BIT. We use BUILD_BUG_ON() to ensure this.
Update the comment to accurately reflect this consensus, making it clear
that we rely on a single section covering full pages.
Link: https://lore.kernel.org/20260402102320.3617578-1-songmuchun@bytedance.com
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Petr Tesarik <ptesarik@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Add filemap_add() and filemap_remove() methods to vm_uffd_ops and use them
in __mfill_atomic_pte() to add shmem folios to page cache and remove them
in case of error.
Implement these methods in shmem along with vm_uffd_ops->alloc_folio() and
drop shmem_mfill_atomic_pte().
Since userfaultfd now does not reference any functions from shmem, drop
include if linux/shmem_fs.h from mm/userfaultfd.c
mfill_atomic_install_pte() is not used anywhere outside of mm/userfaultfd,
make it static.
Link: https://lore.kernel.org/20260402041156.1377214-11-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: James Houghton <jthoughton@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Andrei Vagin <avagin@google.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: David Hildenbrand (Arm) <david@kernel.org>
Cc: Harry Yoo <harry.yoo@oracle.com>
Cc: Harry Yoo (Oracle) <harry@kernel.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Nikita Kalyazin <kalyazin@amazon.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: David Carlier <devnexen@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Linus Torvalds
Christian Brauner
Randy Dunlap
Jakub Kicinski
Maxime Ripard
Longxuan Yu
Xiang Gao
Chris Leech
KaFai Wan
Mark Brown
Johan Hovold
Olga Kornievskaia
Arnd Bergmann
Kexin Sun
Dewei Meng
Stanislav Fomichev
Pablo Neira Ayuso
Tejun Heo
Qingfang Deng
Petr Mladek
Herbert Xu
Wolfram Sang
Muchun Song
Mike Rapoport (Microsoft)