CVE-2025-38335
Input: gpio-keys - fix a sleep while atomic with PREEMPT_RT
In the Linux kernel, the following vulnerability has been resolved: Input: gpio-keys - fix a sleep while atomic with PREEMPT_RT When enabling PREEMPT_RT, the gpio_keys_irq_timer() callback runs in hard irq context, but the input_event() takes a spin_lock, which isn't allowed there as it is converted to a rt_spin_lock(). [ 4054.289999] BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48 [ 4054.290028] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 0, name: swapper/0 ... [ 4054.290195] __might_resched+0x13c/0x1f4 [ 4054.290209] rt_spin_lock+0x54/0x11c [ 4054.290219] input_event+0x48/0x80 [ 4054.290230] gpio_keys_irq_timer+0x4c/0x78 [ 4054.290243] __hrtimer_run_queues+0x1a4/0x438 [ 4054.290257] hrtimer_interrupt+0xe4/0x240 [ 4054.290269] arch_timer_handler_phys+0x2c/0x44 [ 4054.290283] handle_percpu_devid_irq+0x8c/0x14c [ 4054.290297] handle_irq_desc+0x40/0x58 [ 4054.290307] generic_handle_domain_irq+0x1c/0x28 [ 4054.290316] gic_handle_irq+0x44/0xcc Considering the gpio_keys_irq_isr() can run in any context, e.g. it can be threaded, it seems there's no point in requesting the timer isr to run in hard irq context. Relax the hrtimer not to use the hard context.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Linux Linux |
≥ 019002f20cb5b9f78d39360aff244265d035e08a; < 664e5a6f541ff226621487d1280d2ec28e86be28 (affected, git) ≥ 019002f20cb5b9f78d39360aff244265d035e08a; < a8f01e51109f77229e426b57c5d19251b462c6aa (affected, git) ≥ 019002f20cb5b9f78d39360aff244265d035e08a; < fa53beab4740c4e5fe969f218a379f9558be33dc (affected, git) ≥ 019002f20cb5b9f78d39360aff244265d035e08a; < a7b79db25846459de63ca8974268f0c41c734c4b (affected, git) ≥ 019002f20cb5b9f78d39360aff244265d035e08a; < ec8f5da79b425deef5aebacdd4fe645620cd4f0b (affected, git) ≥ 019002f20cb5b9f78d39360aff244265d035e08a; < f4a8f561d08e39f7833d4a278ebfb12a41eef15f (affected, git) Other versions: unaffected |
CNA: Linux |
| Linux Linux |
5.13 (affected) ≥ 0; < 5.13 (unaffected, semver) ≥ 5.15.190; ≤ 5.15.* (unaffected, semver) ≥ 6.1.148; ≤ 6.1.* (unaffected, semver) ≥ 6.6.101; ≤ 6.6.* (unaffected, semver) ≥ 6.12.41; ≤ 6.12.* (unaffected, semver) ≥ 6.15.4; ≤ 6.15.* (unaffected, semver) ≥ 6.16; ≤ * (unaffected, original_commit_for_fix) Other versions: affected |
CNA: Linux |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://git.kernel.org/stable/c/664e5a6f541ff226621487d1280d2ec28e86be28CNA: Linux
- https://git.kernel.org/stable/c/a8f01e51109f77229e426b57c5d19251b462c6aaCNA: Linux
- https://git.kernel.org/stable/c/fa53beab4740c4e5fe969f218a379f9558be33dcCNA: Linux
- https://git.kernel.org/stable/c/a7b79db25846459de63ca8974268f0c41c734c4bCNA: Linux
- https://git.kernel.org/stable/c/ec8f5da79b425deef5aebacdd4fe645620cd4f0bCNA: Linux
- https://git.kernel.org/stable/c/f4a8f561d08e39f7833d4a278ebfb12a41eef15fCNA: Linux
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlADP: CVE
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