CVE-2026-53048In 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()…
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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
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-476
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 5.15.200 before 5.15.209; from 6.1.162 before 6.1.175; from 6.6.37 before 6.6.141; from 6.9.8 before 6.12.91; from 6.13 before 6.18.33; from 6.19 before 7.0.10 | NVD |
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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.