CVE-2023-54272 (GCVE-0-2023-54272)
Vulnerability from cvelistv5 – Published: 2025-12-30 12:16 – Updated: 2025-12-30 12:16
VLAI?
Title
fs/ntfs3: Fix a possible null-pointer dereference in ni_clear()
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 20f9bfc664d6a478f9a5bbc0c380f80f7a1a06c6
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 39c6312009574ca73865354133ca222e7753a71b (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e7675f85a92233136c630000a0b7cf97826705da (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ec275bf9693d19cc0fdce8436f4c425ced86f6e7 (git) |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: Fix a possible null-pointer dereference in ni_clear()\n\nIn a previous commit c1006bd13146, ni-\u003emi.mrec in ni_write_inode()\ncould be NULL, and thus a NULL check is added for this variable.\n\nHowever, in the same call stack, ni-\u003emi.mrec can be also dereferenced\nin ni_clear():\n\nntfs_evict_inode(inode)\n ni_write_inode(inode, ...)\n ni = ntfs_i(inode);\n is_rec_inuse(ni-\u003emi.mrec) -\u003e Add a NULL check by previous commit\n ni_clear(ntfs_i(inode))\n is_rec_inuse(ni-\u003emi.mrec) -\u003e No check\n\nThus, a possible null-pointer dereference may exist in ni_clear().\nTo fix it, a NULL check is added in this function."
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"url": "https://git.kernel.org/stable/c/39c6312009574ca73865354133ca222e7753a71b"
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"url": "https://git.kernel.org/stable/c/e7675f85a92233136c630000a0b7cf97826705da"
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"url": "https://git.kernel.org/stable/c/ec275bf9693d19cc0fdce8436f4c425ced86f6e7"
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"cveId": "CVE-2023-54272",
"datePublished": "2025-12-30T12:16:02.335Z",
"dateReserved": "2025-12-30T12:06:44.522Z",
"dateUpdated": "2025-12-30T12:16:02.335Z",
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"nvd": "{\"cve\":{\"id\":\"CVE-2023-54272\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-30T13:16:16.110\",\"lastModified\":\"2025-12-30T13:16:16.110\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nfs/ntfs3: Fix a possible null-pointer dereference in ni_clear()\\n\\nIn a previous commit c1006bd13146, ni-\u003emi.mrec in ni_write_inode()\\ncould be NULL, and thus a NULL check is added for this variable.\\n\\nHowever, in the same call stack, ni-\u003emi.mrec can be also dereferenced\\nin ni_clear():\\n\\nntfs_evict_inode(inode)\\n ni_write_inode(inode, ...)\\n ni = ntfs_i(inode);\\n is_rec_inuse(ni-\u003emi.mrec) -\u003e Add a NULL check by previous commit\\n ni_clear(ntfs_i(inode))\\n is_rec_inuse(ni-\u003emi.mrec) -\u003e No check\\n\\nThus, a possible null-pointer dereference may exist in ni_clear().\\nTo fix it, a NULL check is added in this function.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/20f9bfc664d6a478f9a5bbc0c380f80f7a1a06c6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/39c6312009574ca73865354133ca222e7753a71b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e7675f85a92233136c630000a0b7cf97826705da\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ec275bf9693d19cc0fdce8436f4c425ced86f6e7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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