Unrated severityNVD Advisory· Published Oct 1, 2025· Updated Jan 5, 2026
FS: JFS: Fix null-ptr-deref Read in txBegin
CVE-2023-53457
Description
In the Linux kernel, the following vulnerability has been resolved:
FS: JFS: Fix null-ptr-deref Read in txBegin
Syzkaller reported an issue where txBegin may be called on a superblock in a read-only mounted filesystem which leads to NULL pointer deref. This could be solved by checking if the filesystem is read-only before calling txBegin, and returning with appropiate error code.
Affected products
3- Linux/Linuxv5Range: 2.6.12
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
8- git.kernel.org/stable/c/1b4c144767736221cad92c132f72b3c6ed06a0eamitre
- git.kernel.org/stable/c/2a3f20efe6c901d4c0871cfd1d8c65e2ade71fc1mitre
- git.kernel.org/stable/c/3e5eb6c5ecd8ddb9cfea751cf30f9e23eac97ca3mitre
- git.kernel.org/stable/c/3e94d0d378d2754b26fc54b429582553f7b53e15mitre
- git.kernel.org/stable/c/47cfdc338d674d38f4b2f22b7612cc6a2763ba27mitre
- git.kernel.org/stable/c/a7225e9e09519deb7e0c42eb6070029cc456e84dmitre
- git.kernel.org/stable/c/a7d17d6bd7cd4f6940b335ea7a6fce5b6d22adc2mitre
- git.kernel.org/stable/c/fd2db13fb72ff18c633a48229589d42ceb89d1f8mitre
News mentions
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