CVE-2023-53760

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.1.17-mainline-android14-2-g277223301adb

Description The Linux kernel contained a deadlock issue within the UFS (Universal Flash Storage) subsystem related to the management of command queues (MCQ). Specifically, a deadlock could occur when the ufshcd err handler() function was executed, potentially leading to system instability. This issue stemmed from the possibility of an interrupt entering a waiting state for the same lock (&hwq->cq lock) that was already held, specifically within the ufshcd handle mcq cq events() and ufs mtk mcq intr() functions. The problem was addressed by using ufshcd mcq poll cqe lock() with spin lock irqsave instead of spin lock to resolve the deadlock.

Recommendations Update the Linux kernel to version 6.1.17-mainline-android14-2-g277223301adb or a later version to resolve this issue.