发布时间: 2024年10月12日
修改时间: 2024年10月14日
In the Linux kernel, the following vulnerability has been resolved:i2c: tegra: Do not mark ACPI devices as irq safeOn ACPI machines, the tegra i2c module encounters an issue due to amutex 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_xferThe 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 onmutexes, 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.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | None | None |
| Attack Vector | Local | Local |
| CVSS评分 | 5.5 | 5.5 |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| Scope | Unchanged | Unchanged |
| Integrity | None | None |
| User Interaction | None | None |
| Availability | High | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2024-3895 | In the Linux kernel, the following vulnerability has been resolved:i2c: tegra: Do not mark ACPI devices as irq safeOn ACPI machines, the tegra i2c module encounters an issue due to amutex 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_xferThe 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 onmutexes, 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. | 2024年10月12日 |
| KylinSec-SA-2024-4984 | kernel security update | 2025年7月30日 |
| 产品 | 包 | 状态 |
|---|---|---|
| V6 | kernel | Fixed |
