CVE-2023-54311
In the Linux kernel, the following vulnerability has been resolved: ext4: fix deadlock when converting an inline directory in nojournal mode In no journal mode, ext4_finish_convert_inline_dir() can self-deadlock by calling ext4_handle_dirty_dirblock() when it already has taken the directory lock. There is a similar self-deadlock in ext4_incvert_inline_data_nolock() for data files which we'll fix at the same time. A simple reproducer demonstrating the problem: mke2fs -Fq -t ext2 -O inline_data -b 4k /dev/vdc 64 mount -t ext4 -o dirsync /dev/vdc /vdc cd /vdc mkdir file0 cd file0 touch file0 touch file1 attr -s BurnSpaceInEA -V abcde . touch supercalifragilisticexpialidocious
Affected versions
Linux kernel versions
3.8
and later are affected. Fixed in
5.4.243,
5.10.180,
5.15.112,
6.1.29,
6.2.16,
6.3.3,
6.4
and their respective stable series.
References
The following references provide additional information about CVE-2023-54311 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/0b1c4357bb21d9770451a1bdb8d419ea10bada88
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PatchKernel patch commithttps://git.kernel.org/stable/c/5f8b55136ad787aed2c184f7cb3e93772ae637a3
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PatchKernel patch commithttps://git.kernel.org/stable/c/640c8c365999c6f23447ac766437236ad88317c5
Frequently asked questions
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What is CVE-2023-54311?
CVE-2023-54311 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 3.8 onward and has been patched in 5.4.243, 5.10.180, 5.15.112 and others. CVE-2023-54311 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2023-54311?
Yes — CVE-2023-54311 has been patched. Fixed versions include 5.4.243, 5.10.180, 5.15.112 and others. If you are running Linux kernel 3.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-54311 actively exploited?
No — CVE-2023-54311 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.