Detections
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CVE-2025-40242
critical
Description
In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix unlikely race in gdlm_put_lock In gdlm_put_lock(), there is a small window of time in which the DFL_UNMOUNT flag has been set but the lockspace hasn't been released, yet. In that window, dlm may still call gdlm_ast() and gdlm_bast(). To prevent it from dereferencing freed glock objects, only free the glock if the lockspace has actually been released.
References
https://git.kernel.org/stable/c/64c61b4ac645222fa7b724cef616c1f862a72a40
https://git.kernel.org/stable/c/28c4d9bc0708956c1a736a9e49fee71b65deee81
https://git.kernel.org/stable/c/279bde3bbb0ac0bad5c729dfa85983d75a5d7641