CVE-2025-40242
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
04/12/2025
Last modified:
04/12/2025
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
gfs2: Fix unlikely race in gdlm_put_lock<br />
<br />
In gdlm_put_lock(), there is a small window of time in which the<br />
DFL_UNMOUNT flag has been set but the lockspace hasn&#39;t been released,<br />
yet. In that window, dlm may still call gdlm_ast() and gdlm_bast().<br />
To prevent it from dereferencing freed glock objects, only free the<br />
glock if the lockspace has actually been released.