udf: Do not bother merging very long extents
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 4.14.308, 4.19.276, 5.4.235, 5.10.173, 5.15.99, and 2 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in d52252a1de4cf96a34f722b0cd8902d8ff78eb57; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 5d029799d381a9ee06209a222cae75f04c5d5304; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 3d20e3b768aff32112bdce8d3219d923ae75f9f1; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 965982feb333aefa9256c0fe188b5f1b958aef63; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 9a8d602f0723586e668bae7e65c832ceb9bcc8bc; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in adac9ac6d2e04ea0782b91a00ba10706002f3ec4; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 7a965da79f2d22601f329cbfce588386b0847544; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 53cafe1d6d8ef9f93318e5bfccc0d24f27d41ced
- Linux Linux
2.6.12
- KernelLinux
From 2.6.12 · fixed in 4.14.308; From 4.15.0 · fixed in 4.19.276; From 4.20.0 · fixed in 5.4.235; From 5.5.0 · fixed in 5.10.173; From 5.11.0 · fixed in 5.15.99; From 5.16.0 · fixed in 6.1.16; From 6.2.0 · fixed in 6.2.3
References 8
git.kernel.org
- stable/c/d52252a1de4cf96a34f722b0cd8902d8ff78eb57
- stable/c/5d029799d381a9ee06209a222cae75f04c5d5304
- stable/c/3d20e3b768aff32112bdce8d3219d923ae75f9f1
- stable/c/965982feb333aefa9256c0fe188b5f1b958aef63
- stable/c/9a8d602f0723586e668bae7e65c832ceb9bcc8bc
- stable/c/adac9ac6d2e04ea0782b91a00ba10706002f3ec4
- stable/c/7a965da79f2d22601f329cbfce588386b0847544
- stable/c/53cafe1d6d8ef9f93318e5bfccc0d24f27d41ced