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If selftests are run as root, then execute the unprivileged checks as
well. This switch from 243 to 368 tests.
The test numbers are suffixed with "/u" when executed as unprivileged or
with "/p" when executed as privileged.
The geteuid() check is replaced with a capability check.
Handling capabilities requires the libcap dependency.
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use the tools include directory instead of the installed one to allow
builds from other kernels.
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The siginfo contains a bunch of information about the fault.
For protection keys, it tells us which protection key's
permissions were violated.
The wrong offset in here leads to reading garbage and thus
failures in the tests.
We should probably eventually move this over to using the
kernel's headers defining the siginfo instead of a hard-coded
offset. But, for now, just do the simplest fix.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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'orig_pkru' might have been uninitialized here. Fix it.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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The patch fixes the case when adding a zero value to the packet
pointer. The zero value could come from src_reg equals type
BPF_K or CONST_IMM. The patch fixes both, otherwise the verifer
reports the following error:
[...]
R0=imm0,min_value=0,max_value=0
R1=pkt(id=0,off=0,r=4)
R2=pkt_end R3=fp-12
R4=imm4,min_value=4,max_value=4
R5=pkt(id=0,off=4,r=4)
269: (bf) r2 = r0 // r2 becomes imm0
270: (77) r2 >>= 3
271: (bf) r4 = r1 // r4 becomes pkt ptr
272: (0f) r4 += r2 // r4 += 0
addition of negative constant to packet pointer is not allowed
Signed-off-by: William Tu <u9012063@gmail.com>
Signed-off-by: Mihai Budiu <mbudiu@vmware.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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These two tests are based on the work done for f23cc643f9ba. The first test is
just a basic one to make sure we don't allow AND'ing negative values, even if it
would result in a valid index for the array. The second is a cleaned up version
of the original testcase provided by Jann Horn that resulted in the commit.
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We want the hv and other fixes in here as well to handle merge and
testing issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Ingo pointed out that the MPX tests were no longer in the selftests
Makefile. It appears that I shot myself in the foot on this one
and accidentally removed them when I added the pkeys tests, probably
from bungling a merge conflict.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 5f23f6d082a9 ("x86/pkeys: Add self-tests")
Link: http://lkml.kernel.org/r/20170201225629.C3070852@viggo.jf.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Pull RCU changes from Paul E. McKenney:
- Dynticks updates, consolidating open-coded counter accesses into a well-defined API
- SRCU updates: Simplify algorithm, add formal verification
- Documentation updates
- Miscellaneous fixes
- Torture-test updates
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Two trivial overlapping changes conflicts in MPLS and mlx5.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull networking fixes from David Miller:
1) GTP fixes from Andreas Schultz (missing genl module alias, clear IP
DF on transmit).
2) Netfilter needs to reflect the fwmark when sending resets, from Pau
Espin Pedrol.
3) nftable dump OOPS fix from Liping Zhang.
4) Fix erroneous setting of VIRTIO_NET_HDR_F_DATA_VALID on transmit,
from Rolf Neugebauer.
5) Fix build error of ipt_CLUSTERIP when procfs is disabled, from Arnd
Bergmann.
6) Fix regression in handling of NETIF_F_SG in harmonize_features(),
from Eric Dumazet.
7) Fix RTNL deadlock wrt. lwtunnel module loading, from David Ahern.
8) tcp_fastopen_create_child() needs to setup tp->max_window, from
Alexey Kodanev.
9) Missing kmemdup() failure check in ipv6 segment routing code, from
Eric Dumazet.
10) Don't execute unix_bind() under the bindlock, otherwise we deadlock
with splice. From WANG Cong.
11) ip6_tnl_parse_tlv_enc_lim() potentially reallocates the skb buffer,
therefore callers must reload cached header pointers into that skb.
Fix from Eric Dumazet.
12) Fix various bugs in legacy IRQ fallback handling in alx driver, from
Tobias Regnery.
13) Do not allow lwtunnel drivers to be unloaded while they are
referenced by active instances, from Robert Shearman.
14) Fix truncated PHY LED trigger names, from Geert Uytterhoeven.
15) Fix a few regressions from virtio_net XDP support, from John
Fastabend and Jakub Kicinski.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (102 commits)
ISDN: eicon: silence misleading array-bounds warning
net: phy: micrel: add support for KSZ8795
gtp: fix cross netns recv on gtp socket
gtp: clear DF bit on GTP packet tx
gtp: add genl family modules alias
tcp: don't annotate mark on control socket from tcp_v6_send_response()
ravb: unmap descriptors when freeing rings
virtio_net: reject XDP programs using header adjustment
virtio_net: use dev_kfree_skb for small buffer XDP receive
r8152: check rx after napi is enabled
r8152: re-schedule napi for tx
r8152: avoid start_xmit to schedule napi when napi is disabled
r8152: avoid start_xmit to call napi_schedule during autosuspend
net: dsa: Bring back device detaching in dsa_slave_suspend()
net: phy: leds: Fix truncated LED trigger names
net: phy: leds: Break dependency of phy.h on phy_led_triggers.h
net: phy: leds: Clear phy_num_led_triggers on failure to avoid crash
net-next: ethernet: mediatek: change the compatible string
Documentation: devicetree: change the mediatek ethernet compatible string
bnxt_en: Fix RTNL lock usage on bnxt_get_port_module_status().
...
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Backmerge Linus master to get the connector locking revert.
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux: (645 commits)
sysctl: fix proc_doulongvec_ms_jiffies_minmax()
Revert "drm/probe-helpers: Drop locking from poll_enable"
MAINTAINERS: add Dan Streetman to zbud maintainers
MAINTAINERS: add Dan Streetman to zswap maintainers
mm: do not export ioremap_page_range symbol for external module
mn10300: fix build error of missing fpu_save()
romfs: use different way to generate fsid for BLOCK or MTD
frv: add missing atomic64 operations
mm, page_alloc: fix premature OOM when racing with cpuset mems update
mm, page_alloc: move cpuset seqcount checking to slowpath
mm, page_alloc: fix fast-path race with cpuset update or removal
mm, page_alloc: fix check for NULL preferred_zone
kernel/panic.c: add missing \n
fbdev: color map copying bounds checking
frv: add atomic64_add_unless()
mm/mempolicy.c: do not put mempolicy before using its nodemask
radix-tree: fix private list warnings
Documentation/filesystems/proc.txt: add VmPin
mm, memcg: do not retry precharge charges
proc: add a schedule point in proc_pid_readdir()
...
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We currently used len instead of prefix_len for the strncmp() in
fdinfo on the prog_tag. It still worked as we matched on the correct
output line also with first 8 instead of 10 chars, but lets fix it
properly to use the intended length.
Fixes: 62b64660262a ("bpf: add prog tag test case to bpf selftests")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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doc.2017.01.15b: Documentation updates
dyntick.2017.01.23a: Dyntick tracking consolidation
fixes.2017.01.23a: Miscellaneous fixes
srcu.2017.01.25a: SRCU rewrite, fixes, and verification
torture.2017.01.15b: Torture-test updates
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This commit creates a formal/srcu-cbmc directory containing scripts that
pull SRCU in from the source code, filter it to remove things that CBMC
cannot handle, and run a series of verifications on it. This has a number
of shortcomings:
1. It does not yet hook into the upper-level self-test Makefiles.
2. It tests only a single scenario, store buffering.
3. There is no gcc-based syntax-error prefiltering.
Nevertheless, it does fully verify a piece of SRCU under a moderately
weak memory model (PSO).
Signed-off-by: Lance Roy <ldr709@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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We have no custom fallback mechanism test interface. Provide one.
This tests both the custom fallback mechanism and cancelling the
it.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add a test case for cancelling the sync fallback mechanism.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Calling it user mode helper only creates confusion.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Some distributions (Debian, OpenSUSE) have a udev rule in place to cancel
all fallback mechanism uevents immediately. This would obviously
make it hard to test against the fallback mechanism test interface,
so we need to check for this.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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William reported couple of issues in relation to direct packet
access. Typical scheme is to check for data + [off] <= data_end,
where [off] can be either immediate or coming from a tracked
register that contains an immediate, depending on the branch, we
can then access the data. However, in case of calculating [off]
for either the mentioned test itself or for access after the test
in a more "complex" way, then the verifier will stop tracking the
CONST_IMM marked register and will mark it as UNKNOWN_VALUE one.
Adding that UNKNOWN_VALUE typed register to a pkt() marked
register, the verifier then bails out in check_packet_ptr_add()
as it finds the registers imm value below 48. In the first below
example, that is due to evaluate_reg_imm_alu() not handling right
shifts and thus marking the register as UNKNOWN_VALUE via helper
__mark_reg_unknown_value() that resets imm to 0.
In the second case the same happens at the time when r4 is set
to r4 &= r5, where it transitions to UNKNOWN_VALUE from
evaluate_reg_imm_alu(). Later on r4 we shift right by 3 inside
evaluate_reg_alu(), where the register's imm turns into 3. That
is, for registers with type UNKNOWN_VALUE, imm of 0 means that
we don't know what value the register has, and for imm > 0 it
means that the value has [imm] upper zero bits. F.e. when shifting
an UNKNOWN_VALUE register by 3 to the right, no matter what value
it had, we know that the 3 upper most bits must be zero now.
This is to make sure that ALU operations with unknown registers
don't overflow. Meaning, once we know that we have more than 48
upper zero bits, or, in other words cannot go beyond 0xffff offset
with ALU ops, such an addition will track the target register
as a new pkt() register with a new id, but 0 offset and 0 range,
so for that a new data/data_end test will be required. Is the source
register a CONST_IMM one that is to be added to the pkt() register,
or the source instruction is an add instruction with immediate
value, then it will get added if it stays within max 0xffff bounds.
>From there, pkt() type, can be accessed should reg->off + imm be
within the access range of pkt().
[...]
from 28 to 30: R0=imm1,min_value=1,max_value=1
R1=pkt(id=0,off=0,r=22) R2=pkt_end
R3=imm144,min_value=144,max_value=144
R4=imm0,min_value=0,max_value=0
R5=inv48,min_value=2054,max_value=2054 R10=fp
30: (bf) r5 = r3
31: (07) r5 += 23
32: (77) r5 >>= 3
33: (bf) r6 = r1
34: (0f) r6 += r5
cannot add integer value with 0 upper zero bits to ptr_to_packet
[...]
from 52 to 80: R0=imm1,min_value=1,max_value=1
R1=pkt(id=0,off=0,r=34) R2=pkt_end R3=inv
R4=imm272 R5=inv56,min_value=17,max_value=17
R6=pkt(id=0,off=26,r=34) R10=fp
80: (07) r4 += 71
81: (18) r5 = 0xfffffff8
83: (5f) r4 &= r5
84: (77) r4 >>= 3
85: (0f) r1 += r4
cannot add integer value with 3 upper zero bits to ptr_to_packet
Thus to get above use-cases working, evaluate_reg_imm_alu() has
been extended for further ALU ops. This is fine, because we only
operate strictly within realm of CONST_IMM types, so here we don't
care about overflows as they will happen in the simulated but also
real execution and interaction with pkt() in check_packet_ptr_add()
will check actual imm value once added to pkt(), but it's irrelevant
before.
With regards to 06c1c049721a ("bpf: allow helpers access to variable
memory") that works on UNKNOWN_VALUE registers, the verifier becomes
now a bit smarter as it can better resolve ALU ops, so we need to
adapt two test cases there, as min/max bound tracking only becomes
necessary when registers were spilled to stack. So while mask was
set before to track upper bound for UNKNOWN_VALUE case, it's now
resolved directly as CONST_IMM, and such contructs are only necessary
when f.e. registers are spilled.
For commit 6b17387307ba ("bpf: recognize 64bit immediate loads as
consts") that initially enabled dw load tracking only for nfp jit/
analyzer, I did couple of tests on large, complex programs and we
don't increase complexity badly (my tests were in ~3% range on avg).
I've added a couple of tests similar to affected code above, and
it works fine with verifier now.
Reported-by: William Tu <u9012063@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Gianluca Borello <g.borello@gmail.com>
Cc: William Tu <u9012063@gmail.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add the test case used to compare the results from fdinfo with
af_alg's output on the tag. Tests are from min to max sized
programs, with and without maps included.
# ./test_tag
test_tag: OK (40945 tests)
Tested on x86_64 and s390x.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The first part of this program runs randomized tests against the
lpm-bpf-map. It implements a "Trivial Longest Prefix Match" (tlpm)
based on simple, linear, single linked lists. The implementation
should be pretty straightforward.
Based on tlpm, this inserts randomized data into bpf-lpm-maps and
verifies the trie-based bpf-map implementation behaves the same way
as tlpm.
The second part uses 'real world' IPv4 and IPv6 addresses and tests
the trie with those.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Mack <daniel@zonque.org>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds support for special tests which were reported on the PM
list over the years, which helped catching core bugs by several
developers.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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This patch adds support for cpufreq modules like cpufreq drivers and
cpufreq governors. The tests will insert the modules in different orders
and them perform basic cpufreq tests. The modules are then removed from
the kernel.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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This patch adds support to test basic suspend/resume and hibernation to
the cpufreq selftests.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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This patch adds supports for basic cpufreq tests, which can be performed
independent of any platform.
It does basic tests for now, like
- reading all cpufreq files
- trying to update them
- switching frequencies
- switching governors
This can be extended to have more specific tests later on.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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This test was missing from the TARGETS list. The test requires patches
to cpupower to pass correctly.
Cc: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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Recent changes from Bamvor (88baa78d1f318) have standardized the
variable names like TEST_GEN_FILES and removed the need for make targets
all and clean.
These changes bring the intel_pstate test inline with those changes.
Cc: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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The build was showing the warning:
aperf.c:60:27: warning: iteration 2147483647 invokes undefined behavior
[-Waggressive-loop-optimizations]
for (i=0; i<0x8fffffff; i++) {
This change sets i, cpu and fd to unsigned int as they should not need
to be signed.
Cc: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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The futex makefile did not contain dependencies for all headers, so if
we make changes to logging.h rebuild will not happen. Add headers to
fix it up.
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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Fix missing printf compile warnings.
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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Test uses PMC2 to count the event. But PMC1 is being initialized.
Patch to fix it.
Fixes: 3752e453f6ba ('selftests/powerpc: Add tests of PMU EBBs')
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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test_lru_sanity5() fails when the number of online cpus
is fewer than the number of possible cpus. It can be
reproduced with qemu by using cmd args "--smp cpus=2,maxcpus=8".
The problem is the loop in test_lru_sanity5() is testing
'i' which is incorrect.
This patch:
1. Make sched_next_online() always return -1 if it cannot
find a next cpu to schedule the process.
2. In test_lru_sanity5(), the parent process does
sched_setaffinity() first (through sched_next_online())
and the forked process will inherit it according to
the 'man sched_setaffinity'.
Fixes: 5db58faf989f ("bpf: Add tests for the LRU bpf_htab")
Reported-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We want the sysfs file revert and other fixes in here as well for
testing.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The RCU torture tests currently do not run any Tiny RCU scenarios for
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y. This is a hole in the test, given
that someone might need this in real life and given that Tiny RCU uses
different callback-handling code than does Tree RCU. This commit
therefore enables this Kconfig option for scenario TINY02.
Reported-by: "Ahmed, Iftekhar" <ahmedi@oregonstate.edu>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
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Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
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This commit runs TREE04 and TREE08 with CONFIG_RCU_EQS_DEBUG=y,
enabling dyntick-counter checking on those two tests.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
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This commit sets CONFIG_DEBUG_LOCK_ALLOC but not CONFIG_PROVE_LOCKING
for TREE08 in order to have at least one test with this configuration.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
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This commit enables the CONFIG_DEBUG_OBJECTS_RCU_HEAD Kconfig option
in TREE02 in order to do at least some testing with this enabled.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
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This commit moves CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP,
CONFIG_RCU_TORTURE_TEST_SLOW_INIT, and CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT
from CFcommon to all of the TREE scenarios other than TREE08 and TREE09
in order to do at least some testing without these Kconfig options set.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
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This commit adds CONFIG_PROVE_RCU_REPEATEDLY=y, which has been untested
for quite some time.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
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This commit verifies coverage of testing with CONFIG_RCU_STALL_COMMON=n.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
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Add the minimal test running (modprobe test-ww_mutex) to the kselftests
CI framework.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20161201114711.28697-9-chris@chris-wilson.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Although ww_mutexes degenerate into mutexes, it would be useful to
torture the deadlock handling between multiple ww_mutexes in addition to
torturing the regular mutexes.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Maarten Lankhorst <dev@mblankhorst.nl>
Cc: Nicolai Hähnle <nhaehnle@gmail.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20161201114711.28697-3-chris@chris-wilson.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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The filter added by sock_setfilter is intended to only permit
packets matching the pattern set up by create_payload(), but
we only check the ip_len, and a single test-character in
the IP packet to ensure this condition.
Harden the filter by adding additional constraints so that we only
permit UDP/IPv4 packets that meet the ip_len and test-character
requirements. Include the bpf_asm src as a comment, in case this
needs to be enhanced in the future
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When structs are used to store temporary state in cb[] buffer that is
used with programs and among tail calls, then the generated code will
not always access the buffer in bpf_w chunks. We can ease programming
of it and let this act more natural by allowing for aligned b/h/w/dw
sized access for cb[] ctx member. Various test cases are attached as
well for the selftest suite. Potentially, this can also be reused for
other program types to pass data around.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Two AF_* families adding entries to the lockdep tables
at the same time.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove commented out calls to pkey_get().
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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Fix unused variable compile warnings in protection_keys.c
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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Add missing generated file msgque to .gitignore
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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Mickaël Salaün
Dave Hansen
William Tu
Josef Bacik
Greg Kroah-Hartman
Ingo Molnar
David S. Miller
Linus Torvalds
Dave Airlie
Daniel Borkmann
Paul E. McKenney
Lance Roy
Luis R. Rodriguez
David Herrmann
Viresh Kumar
Stafford Horne
Madhavan Srinivasan
Martin KaFai Lau
Chris Wilson
Sowmini Varadhan
Shuah Khan