PT-2026-51942 · Linux · Linux

Published 2026-06-24 · Updated 2026-06-24 · CVE-2026-53048

NVD

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.

Related Identifiers

CVE-2026-53048

Affected Products

Linux

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2026-53048 · Security Note
• https://git.kernel.org/stable/c/abd73229f0e886a91a16ea781ab656bd9b4d1ee8 · Note
• https://git.kernel.org/stable/c/233a0945a4b1dbe3f38c30afb7d05b76c67f1193 · Note
• https://git.kernel.org/stable/c/e15f16761594e80b15776980b27c35477655a135 · Note
• https://git.kernel.org/stable/c/2fc4c868c9060f424fd4a7cacb0aec5082aba4de · Note
• https://git.kernel.org/stable/c/d8ffae016c4a78693fe1283335d0b6833a9c1366 · Note
• https://git.kernel.org/stable/c/74b4dbb946060a3233604d91859a9abd3708141d · Note
• https://git.kernel.org/stable/c/cec55674354794eddb80b914f73a6bf9b7fc304a · Note