CVE-2026-53048

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-06-24 Modified: 2026-11-06 First seen: 2026-11-06 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

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.

Weakness Classification (1)

Affected Software (14)

VendorProductVersion
Linux Linux c3c5cfa3170c0940bc66a142859caac07d19b9d6 < cec55674354794eddb80b914f73a6bf9b7fc304a
Linux Linux 5f6a84cfb33b34610623857bd93919dcb661e29b < 2fc4c868c9060f424fd4a7cacb0aec5082aba4de
Linux Linux 3429ef5f50909cee9e498c50f0c499b9397116ce < 233a0945a4b1dbe3f38c30afb7d05b76c67f1193
Linux Linux 35264909e9d1973ab9aaa2a1b07cda70f12bb828 < e15f16761594e80b15776980b27c35477655a135
Linux Linux 35264909e9d1973ab9aaa2a1b07cda70f12bb828 < d8ffae016c4a78693fe1283335d0b6833a9c1366
Linux Linux 35264909e9d1973ab9aaa2a1b07cda70f12bb828 < abd73229f0e886a91a16ea781ab656bd9b4d1ee8
Linux Linux 35264909e9d1973ab9aaa2a1b07cda70f12bb828 < 74b4dbb946060a3233604d91859a9abd3708141d
Linux Linux f54f9d5368a4e92ede7dd078a62788dae3a7c6ef
Linux Linux 5.15.200 < 5.15.209
Linux Linux 6.1.162 < 6.1.175
Linux Linux 6.6.37 < 6.6.141
Linux Linux 6.9.8 < 6.10
Linux Linux 6.10
linux linux_kernel 5.15.200 – 5.15.209

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.12%
Raw Score 0.001230
Percentile 2.1%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00123
2026-11-12
0.00123
2026-11-10
0.00123
2026-11-09
0.00123
2026-11-08
0.00123
2026-11-07
0.00123
2026-11-06
0.00123

Intelligence Sources

mitre ref →
nvd ref →