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CVE-2023-54311

UnknownEPSS 0.17%

Last modified

CVE-2023-54311 is a vulnerability of currently unknown severity. 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. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

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

Metrics

EPSS Probability
0.17%

6.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 3c47d54170b6a678875566b1b8d6dcf57904e49b, < b4fa4768c9acff77245d672d855d2c88294850b1; >= 3c47d54170b6a678875566b1b8d6dcf57904e49b, < 5f8b55136ad787aed2c184f7cb3e93772ae637a3; >= 3c47d54170b6a678875566b1b8d6dcf57904e49b, < 640c8c365999c6f23447ac766437236ad88317c5; >= 3c47d54170b6a678875566b1b8d6dcf57904e49b, < 665cc3ba50330049524c1d275bc840a8f28dde73; >= 3c47d54170b6a678875566b1b8d6dcf57904e49b, < 0b1c4357bb21d9770451a1bdb8d419ea10bada88; >= 3c47d54170b6a678875566b1b8d6dcf57904e49b, < 804de0c72cd473e186ca4e1f6287d45431b14e5a; >= 3c47d54170b6a678875566b1b8d6dcf57904e49b, < f4ce24f54d9cca4f09a395f3eecce20d6bec4663
LinuxLinux3.8

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is 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
How severe is CVE-2023-54311?
Severity scoring for CVE-2023-54311 is pending analysis. The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.
How do I fix CVE-2023-54311?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST