{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-21684","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-12-29T08:45:45.740Z","datePublished":"2025-02-09T11:37:24.610Z","dateUpdated":"2025-11-03T19:35:43.659Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:19:00.157Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: xilinx: Convert gpio_lock to raw spinlock\n\nirq_chip functions may be called in raw spinlock context. Therefore, we\nmust also use a raw spinlock for our own internal locking.\n\nThis fixes the following lockdep splat:\n\n[    5.349336] =============================\n[    5.353349] [ BUG: Invalid wait context ]\n[    5.357361] 6.13.0-rc5+ #69 Tainted: G        W\n[    5.363031] -----------------------------\n[    5.367045] kworker/u17:1/44 is trying to lock:\n[    5.371587] ffffff88018b02c0 (&chip->gpio_lock){....}-{3:3}, at: xgpio_irq_unmask (drivers/gpio/gpio-xilinx.c:433 (discriminator 8))\n[    5.380079] other info that might help us debug this:\n[    5.385138] context-{5:5}\n[    5.387762] 5 locks held by kworker/u17:1/44:\n[    5.392123] #0: ffffff8800014958 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work (kernel/workqueue.c:3204)\n[    5.402260] #1: ffffffc082fcbdd8 (deferred_probe_work){+.+.}-{0:0}, at: process_one_work (kernel/workqueue.c:3205)\n[    5.411528] #2: ffffff880172c900 (&dev->mutex){....}-{4:4}, at: __device_attach (drivers/base/dd.c:1006)\n[    5.419929] #3: ffffff88039c8268 (request_class#2){+.+.}-{4:4}, at: __setup_irq (kernel/irq/internals.h:156 kernel/irq/manage.c:1596)\n[    5.428331] #4: ffffff88039c80c8 (lock_class#2){....}-{2:2}, at: __setup_irq (kernel/irq/manage.c:1614)\n[    5.436472] stack backtrace:\n[    5.439359] CPU: 2 UID: 0 PID: 44 Comm: kworker/u17:1 Tainted: G        W          6.13.0-rc5+ #69\n[    5.448690] Tainted: [W]=WARN\n[    5.451656] Hardware name: xlnx,zynqmp (DT)\n[    5.455845] Workqueue: events_unbound deferred_probe_work_func\n[    5.461699] Call trace:\n[    5.464147] show_stack+0x18/0x24 C\n[    5.467821] dump_stack_lvl (lib/dump_stack.c:123)\n[    5.471501] dump_stack (lib/dump_stack.c:130)\n[    5.474824] __lock_acquire (kernel/locking/lockdep.c:4828 kernel/locking/lockdep.c:4898 kernel/locking/lockdep.c:5176)\n[    5.478758] lock_acquire (arch/arm64/include/asm/percpu.h:40 kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851 kernel/locking/lockdep.c:5814)\n[    5.482429] _raw_spin_lock_irqsave (include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162)\n[    5.486797] xgpio_irq_unmask (drivers/gpio/gpio-xilinx.c:433 (discriminator 8))\n[    5.490737] irq_enable (kernel/irq/internals.h:236 kernel/irq/chip.c:170 kernel/irq/chip.c:439 kernel/irq/chip.c:432 kernel/irq/chip.c:345)\n[    5.494060] __irq_startup (kernel/irq/internals.h:241 kernel/irq/chip.c:180 kernel/irq/chip.c:250)\n[    5.497645] irq_startup (kernel/irq/chip.c:270)\n[    5.501143] __setup_irq (kernel/irq/manage.c:1807)\n[    5.504728] request_threaded_irq (kernel/irq/manage.c:2208)"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpio/gpio-xilinx.c"],"versions":[{"version":"a32c7caea292c4d1e417eae6e5a348d187546acf","lessThan":"d25041d4a3b2af64c888cf762362b2528ba59294","status":"affected","versionType":"git"},{"version":"a32c7caea292c4d1e417eae6e5a348d187546acf","lessThan":"f0ed2d0abc021f56fa27dc6d0770535c1851a43b","status":"affected","versionType":"git"},{"version":"a32c7caea292c4d1e417eae6e5a348d187546acf","lessThan":"b0111650ee596219bb5defa0ce1a1308e6e77ccf","status":"affected","versionType":"git"},{"version":"a32c7caea292c4d1e417eae6e5a348d187546acf","lessThan":"9c035105c5537d2ecad6b9415e9417a1ffbd0a62","status":"affected","versionType":"git"},{"version":"a32c7caea292c4d1e417eae6e5a348d187546acf","lessThan":"9860370c2172704b6b4f0075a0c2a29fd84af96a","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpio/gpio-xilinx.c"],"versions":[{"version":"5.12","status":"affected"},{"version":"0","lessThan":"5.12","status":"unaffected","versionType":"semver"},{"version":"5.15.179","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.129","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.74","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.11","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.13","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"5.15.179"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.1.129"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.6.74"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.12.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.13"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/d25041d4a3b2af64c888cf762362b2528ba59294"},{"url":"https://git.kernel.org/stable/c/f0ed2d0abc021f56fa27dc6d0770535c1851a43b"},{"url":"https://git.kernel.org/stable/c/b0111650ee596219bb5defa0ce1a1308e6e77ccf"},{"url":"https://git.kernel.org/stable/c/9c035105c5537d2ecad6b9415e9417a1ffbd0a62"},{"url":"https://git.kernel.org/stable/c/9860370c2172704b6b4f0075a0c2a29fd84af96a"}],"title":"gpio: xilinx: Convert gpio_lock to raw spinlock","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T19:35:43.659Z"}}]}}