Unrated severityNVD Advisory· Published Oct 1, 2025· Updated Jan 5, 2026
udf: Do not bother merging very long extents
CVE-2023-53506
Description
In the Linux kernel, the following vulnerability has been resolved:
udf: Do not bother merging very long extents
When merging very long extents we try to push as much length as possible to the first extent. However this is unnecessarily complicated and not really worth the trouble. Furthermore there was a bug in the logic resulting in corrupting extents in the file as syzbot reproducer shows. So just don't bother with the merging of extents that are too long together.
Affected products
2- 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/3d20e3b768aff32112bdce8d3219d923ae75f9f1mitre
- git.kernel.org/stable/c/53cafe1d6d8ef9f93318e5bfccc0d24f27d41cedmitre
- git.kernel.org/stable/c/5d029799d381a9ee06209a222cae75f04c5d5304mitre
- git.kernel.org/stable/c/7a965da79f2d22601f329cbfce588386b0847544mitre
- git.kernel.org/stable/c/965982feb333aefa9256c0fe188b5f1b958aef63mitre
- git.kernel.org/stable/c/9a8d602f0723586e668bae7e65c832ceb9bcc8bcmitre
- git.kernel.org/stable/c/adac9ac6d2e04ea0782b91a00ba10706002f3ec4mitre
- git.kernel.org/stable/c/d52252a1de4cf96a34f722b0cd8902d8ff78eb57mitre
News mentions
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