Description
In the Linux kernel, the following vulnerability has been resolved: jbd2: fix potential use-after-free in jbd2_fc_wait_bufs In 'jbd2_fc_wait_bufs' use 'bh' after put buffer head reference count which may lead to use-after-free. So judge buffer if uptodate before put buffer head reference count.
Affected products
linux: linux kernel
References5
- git.kernel.org/stable/c/1d4d16daec2a6689b6d3fbfc7d2078643adc6619 Patch
- git.kernel.org/stable/c/243d1a5d505d0b0460c9af0ad56ed4a56ef0bebd Patch
- git.kernel.org/stable/c/2e6d9f381c1ed844531a577783fc352de7a44c8a Patch
- git.kernel.org/stable/c/d11d2ded293976a1a0d9d9471827a44dc9e3c63f Patch
- git.kernel.org/stable/c/effd9b3c029ecdd853a11933dcf857f5a7ca8c3d Patch
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 6 · as of 8 November 2026
- CWE
- CWE-416
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