CVE-2023-54305
In the Linux kernel, the following vulnerability has been resolved: ext4: refuse to create ea block when umounted The ea block expansion need to access s_root while it is already set as NULL when umount is triggered. Refuse this request to avoid panic.
Affected versions
Linux kernel versions
4.13
and later are affected. Fixed in
4.14.308,
4.19.276,
5.4.235,
5.10.173,
5.15.99,
6.1.16,
6.2.3,
6.3
and their respective stable series.
References
The following references provide additional information about CVE-2023-54305 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/05cbf6ddd9847c7b4f0662c048f195b09405a9d0
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PatchKernel patch commithttps://git.kernel.org/stable/c/0dc0fa313bb4e86382a3e7125429710d44383196
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PatchKernel patch commithttps://git.kernel.org/stable/c/116008ada3d0de4991099edaf6b8c2e9cd6f225a
Frequently asked questions
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What is CVE-2023-54305?
CVE-2023-54305 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.13 onward and has been patched in 4.14.308, 4.19.276, 5.4.235 and others. CVE-2023-54305 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-2023-54305?
Yes — CVE-2023-54305 has been patched. Fixed versions include 4.14.308, 4.19.276, 5.4.235 and others. If you are running Linux kernel 4.13 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-54305 actively exploited?
No — CVE-2023-54305 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.