CVE-2022-50187
Linux Kernel vulnerability analysis and mitigation

Overview

CVE-2022-50187 is a vulnerability in the Linux kernel's ath11k driver that involves a race condition in the netdev open operation. The issue was discovered when resources needed for the device were not properly allocated before device registration. This vulnerability was identified in kernel version next-20220511, while it was not present in next-20220310, suggesting timing-related changes between these versions (NVD).

Technical details

The vulnerability occurs when ath11kmacopstart() is called before the monreaptimer is properly set up, which can trigger a BUGON() condition in the mod_timer() function. This race condition specifically affects the initialization process of the network device in the ath11k driver. The issue manifests as a kernel BUG at kernel/time/timer.c:990, leading to a system crash (NVD).

Impact

When triggered, this vulnerability results in a kernel BUG condition that leads to a system crash, affecting systems using the ath11k wireless driver during network interface initialization (NVD).

Mitigation and workarounds

The vulnerability has been resolved in the Linux kernel by ensuring that necessary resources are allocated before registering the device. The fix specifically addresses the race condition in the ath11k driver's netdev open operation (NVD).

Additional resources


SourceThis report was generated using AI

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