CVE-2023-54272
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix a possible null-pointer dereference in ni_clear() In a previous commit c1006bd13146, ni->mi.mrec in ni_write_inode() could be NULL, and thus a NULL check is added for this variable. However, in the same call stack, ni->mi.mrec can be also dereferenced in ni_clear(): ntfs_evict_inode(inode) ni_write_inode(inode, ...) ni = ntfs_i(inode); is_rec_inuse(ni->mi.mrec) -> Add a NULL check by previous commit ni_clear(ntfs_i(inode)) is_rec_inuse(ni->mi.mrec) -> No check Thus, a possible null-pointer dereference may exist in ni_clear(). To fix it, a NULL check is added in this function.
Affected versions
Linux kernel versions
5.15
and later are affected. Fixed in
5.15.113,
6.1.81,
6.3.4,
6.4
and their respective stable series.
References
The following references provide additional information about CVE-2023-54272 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/20f9bfc664d6a478f9a5bbc0c380f80f7a1a06c6
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PatchKernel patch commithttps://git.kernel.org/stable/c/39c6312009574ca73865354133ca222e7753a71b
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PatchKernel patch commithttps://git.kernel.org/stable/c/e7675f85a92233136c630000a0b7cf97826705da
Frequently asked questions
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What is CVE-2023-54272?
CVE-2023-54272 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.15 onward and has been patched in 5.15.113, 6.1.81, 6.3.4 and others. CVE-2023-54272 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-2023-54272?
Yes — CVE-2023-54272 has been patched. Fixed versions include 5.15.113, 6.1.81, 6.3.4 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-54272 actively exploited?
No — CVE-2023-54272 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.