Description
In the Linux kernel, the following vulnerability has been resolved:
i2c: tegra: Do not mark ACPI devices as irq safe
On ACPI machines, the tegra i2c module encounters an issue due to a mutex being called inside a spinlock. This leads to the following bug:
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:585 ...
Call trace: __might_sleep __mutex_lock_common mutex_lock_nested acpi_subsys_runtime_resume rpm_resume tegra_i2c_xfer
The problem arises because during __pm_runtime_resume(), the spinlock &dev->power.lock is acquired before rpm_resume() is called. Later, rpm_resume() invokes acpi_subsys_runtime_resume(), which relies on mutexes, triggering the error.
To address this issue, devices on ACPI are now marked as not IRQ-safe, considering the dependency of acpi_subsys_runtime_resume() on mutexes.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= bd2fdedbf2bac27f4a2ac16b84ab9b9e5f67006c, < a89aef1e6cc43fa019a58080ed05c839e6c77876; >= bd2fdedbf2bac27f4a2ac16b84ab9b9e5f67006c, < 6861faf4232e4b78878f2de1ed3ee324ddae2287; >= bd2fdedbf2bac27f4a2ac16b84ab9b9e5f67006c, < 2853e1376d8161b04c9ff18ba82b43f08a049905; >= bd2fdedbf2bac27f4a2ac16b84ab9b9e5f67006c, < 14d069d92951a3e150c0a81f2ca3b93e54da913b |
| Linux | Linux | 5.17 |
References
- https://git.kernel.org/stable/c/14d069d92951a3e150c0a81f2ca3b93e54da913bPatch
- https://git.kernel.org/stable/c/2853e1376d8161b04c9ff18ba82b43f08a049905Patch
- https://git.kernel.org/stable/c/6861faf4232e4b78878f2de1ed3ee324ddae2287Patch
- https://git.kernel.org/stable/c/a89aef1e6cc43fa019a58080ed05c839e6c77876Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Timeline
- Published
- Sep 11, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Modified