wireguard-linux/drivers/net/wireless/intel/ipw2x00, branch stable

wifi: libipw: fix key index receive bound checks

2026-07-06T12:11:09Z

libipw_rx() reads skb->data[hdrlen + 3] to extract the WEP key index in both the software-decrypt key selection path and the hardware-decrypted IV/ICV strip path. In both places the existing guard only checks skb->len >= hdrlen + 3, which proves bytes up to hdrlen + 2 but not the byte at hdrlen + 3. Require hdrlen + 4 bytes before reading that item in both paths. This is a local source-boundary check only; it does not change the key index semantics. Signed-off-by: Pengpeng Hou Link: https://patch.msgid.link/20260705083519.23567-1-pengpeng@iscas.ac.cn Signed-off-by: Johannes Berg

wifi: ipw2100: fix potential memory leak in ipw2100_pci_init_one()

2026-07-06T12:11:06Z

The memory allocated in the ipw2100_alloc_device() function is not freed in some of the error paths in ipw2100_pci_init_one(). Fix that by converting the direct return into a goto to the error path return. The error path when pci_enable_device() fails cannot jump to fail, since at this point priv is not set, so perform error handling inline. Fixes: 2c86c275015c ("Add ipw2100 wireless driver.") Signed-off-by: Abdun Nihaal Link: https://patch.msgid.link/20260620065242.93798-1-nihaal@cse.iitm.ac.in Signed-off-by: Johannes Berg

net: Consistently define pci_device_ids using named initializers

2026-05-13T01:16:34Z

... and PCI device helpers. The various struct pci_device_id arrays were initialized mostly by one the PCI_DEVICE macros and then list expressions. The latter isn't easily readable if you're not into PCI. Using named initializers is more explicit and thus easier to parse. Also use PCI_DEVICE* helper macros to assign .vendor, .device, .subvendor and .subdevice where appropriate and skip explicit assignments of 0 (which the compiler takes care of). The secret plan is to make struct pci_device_id::driver_data an anonymous union (similar to https://lore.kernel.org/all/cover.1776579304.git.u.kleine-koenig@baylibre.com/) and that requires named initializers. But it's also a nice cleanup on its own. This change doesn't introduce changes to the compiled pci_device_id arrays. Tested on x86 and arm64. Reviewed-by: Jijie Shao Acked-by: Arend van Spriel Reviewed-by: Aleksandr Loktionov Reviewed-by: Petr Machata # for mlxsw Acked-by: Jacob Keller Acked-by: Johannes Berg Signed-off-by: Uwe Kleine-König (The Capable Hub) Forwarded: id:76da4f44d48bdde84580963862bf9616bee5c9e9.1778149923.git.u.kleine-koenig@baylibre.com (v2) Reviewed-by: Michael Grzeschik Link: https://patch.msgid.link/20260511090023.1634387-6-u.kleine-koenig@baylibre.com Signed-off-by: Jakub Kicinski

wifi: ipw2x00: Use michael_mic() from cfg80211

2026-04-08T06:55:16Z

Just use the michael_mic() function from cfg80211 instead of a local implementation of it using the crypto_shash API. Signed-off-by: Eric Biggers Link: https://patch.msgid.link/20260408030651.80336-6-ebiggers@kernel.org Signed-off-by: Johannes Berg

wifi: ipw2x00: Rename michael_mic() to libipw_michael_mic()

2026-04-08T06:55:15Z

Rename the driver-local michael_mic() function to libipw_michael_mic() to prevent a name conflict with the common michael_mic() function. Note that this code will be superseded later when libipw starts using the common michael_mic(). This commit just prevents a bisection hazard. Signed-off-by: Eric Biggers Link: https://patch.msgid.link/20260408030651.80336-2-ebiggers@kernel.org Signed-off-by: Johannes Berg

drivers: net: drop ipv6_stub usage and use direct function calls

2026-03-29T18:21:23Z

As IPv6 is built-in only, the ipv6_stub infrastructure is no longer necessary. Convert all drivers currently utilizing ipv6_stub to make direct function calls. The fallback functions introduced previously will prevent linkage errors when CONFIG_IPV6 is disabled. Signed-off-by: Fernando Fernandez Mancera Tested-by: Ricardo B. Marlière Reviewed-by: Jason A. Donenfeld Reviewed-by: Antonio Quartulli Reviewed-by: Edward Cree Link: https://patch.msgid.link/20260325120928.15848-7-fmancera@suse.de Signed-off-by: Jakub Kicinski

Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses

2026-02-22T16:26:33Z

Conversion performed via this Coccinelle script: // SPDX-License-Identifier: GPL-2.0-only // Options: --include-headers-for-types --all-includes --include-headers --keep-comments virtual patch @gfp depends on patch && !(file in "tools") && !(file in "samples")@ identifier ALLOC = {kmalloc_obj,kmalloc_objs,kmalloc_flex, kzalloc_obj,kzalloc_objs,kzalloc_flex, kvmalloc_obj,kvmalloc_objs,kvmalloc_flex, kvzalloc_obj,kvzalloc_objs,kvzalloc_flex}; @@ ALLOC(... - , GFP_KERNEL ) $ make coccicheck MODE=patch COCCI=gfp.cocci Build and boot tested x86_64 with Fedora 42's GCC and Clang: Linux version 6.19.0+ (user@host) (gcc (GCC) 15.2.1 20260123 (Red Hat 15.2.1-7), GNU ld version 2.44-12.fc42) #1 SMP PREEMPT_DYNAMIC 1970-01-01 Linux version 6.19.0+ (user@host) (clang version 20.1.8 (Fedora 20.1.8-4.fc42), LLD 20.1.8) #1 SMP PREEMPT_DYNAMIC 1970-01-01 Signed-off-by: Kees Cook Signed-off-by: Linus Torvalds

Convert more 'alloc_obj' cases to default GFP_KERNEL arguments

2026-02-22T04:03:00Z

This converts some of the visually simpler cases that have been split over multiple lines. I only did the ones that are easy to verify the resulting diff by having just that final GFP_KERNEL argument on the next line. Somebody should probably do a proper coccinelle script for this, but for me the trivial script actually resulted in an assertion failure in the middle of the script. I probably had made it a bit _too_ trivial. So after fighting that far a while I decided to just do some of the syntactically simpler cases with variations of the previous 'sed' scripts. The more syntactically complex multi-line cases would mostly really want whitespace cleanup anyway. Signed-off-by: Linus Torvalds

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51Z

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28Z

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook