CVE-2024-45029

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> i2c: tegra: Do not mark ACPI devices as irq safe<br /> <br /> On ACPI machines, the tegra i2c module encounters an issue due to a<br /> mutex being called inside a spinlock. This leads to the following bug:<br /> <br /> BUG: sleeping function called from invalid context at kernel/locking/mutex.c:585<br /> ...<br /> <br /> Call trace:<br /> __might_sleep<br /> __mutex_lock_common<br /> mutex_lock_nested<br /> acpi_subsys_runtime_resume<br /> rpm_resume<br /> tegra_i2c_xfer<br /> <br /> The problem arises because during __pm_runtime_resume(), the spinlock<br /> &amp;dev-&gt;power.lock is acquired before rpm_resume() is called. Later,<br /> rpm_resume() invokes acpi_subsys_runtime_resume(), which relies on<br /> mutexes, triggering the error.<br /> <br /> To address this issue, devices on ACPI are now marked as not IRQ-safe,<br /> considering the dependency of acpi_subsys_runtime_resume() on mutexes.