CVE-2026-53048
In the Linux kernel, the following vulnerability has been resolved: gfs2: prevent NULL pointer dereference during unmount When flushing out outstanding glock work during an unmount, gfs2_log_flush() can be called when sdp->sd_jdesc has already been…
Does this matter?
Lower severity and a low EPSS score (0.12%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: gfs2: prevent NULL pointer dereference during unmount When flushing out outstanding glock work during an unmount, gfs2_log_flush() can be called when sdp->sd_jdesc has already been deallocated and sdp->sd_jdesc is NULL. Commit 35264909e9d1 ("gfs2: Fix NULL pointer dereference in gfs2_log_flush") added a check for that to gfs2_log_flush() itself, but it missed the sdp->sd_jdesc dereference in gfs2_log_release(). Fix that.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.12% probability · 2th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/233a0945a4b1dbe3f38c30afb7d05b76c67f1193Patch
- https://git.kernel.org/stable/c/2fc4c868c9060f424fd4a7cacb0aec5082aba4dePatch
- https://git.kernel.org/stable/c/74b4dbb946060a3233604d91859a9abd3708141dPatch
- https://git.kernel.org/stable/c/abd73229f0e886a91a16ea781ab656bd9b4d1ee8Patch
- https://git.kernel.org/stable/c/cec55674354794eddb80b914f73a6bf9b7fc304aPatch
- https://git.kernel.org/stable/c/d8ffae016c4a78693fe1283335d0b6833a9c1366Patch
- https://git.kernel.org/stable/c/e15f16761594e80b15776980b27c35477655a135Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.