cve/2024/CVE-2024-46829.md

CVE-2024-46829

Description

In the Linux kernel, the following vulnerability has been resolved:rtmutex: Drop rt_mutex::wait_lock before schedulingrt_mutex_handle_deadlock() is called with rt_mutex::wait_lock held. In thegood case it returns with the lock held and in the deadlock case it emits awarning and goes into an endless scheduling loop with the lock held, whichtriggers the 'scheduling in atomic' warning.Unlock rt_mutex::wait_lock in the dead lock case before issuing the warningand dropping into the schedule for ever loop.[ tglx: Moved unlock before the WARN(), removed the pointless comment, massaged changelog, added Fixes tag ]

POC

Reference

• https://git.kernel.org/stable/c/6a976e9a47e8e5b326de671811561cab12e6fb1f

Github

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