CVE-2023-52444 (GCVE-0-2023-52444)

Vulnerability from cvelistv5 – Published: 2024-02-22 16:21 – Updated: 2026-05-11 19:27
VLAI
Title
f2fs: fix to avoid dirent corruption
Summary
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid dirent corruption As Al reported in link[1]: f2fs_rename() ... if (old_dir != new_dir && !whiteout) f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); else f2fs_put_page(old_dir_page, 0); You want correct inumber in the ".." link. And cross-directory rename does move the source to new parent, even if you'd been asked to leave a whiteout in the old place. [1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/ With below testcase, it may cause dirent corruption, due to it missed to call f2fs_set_link() to update ".." link to new directory. - mkdir -p dir/foo - renameat2 -w dir/foo bar [ASSERT] (__chk_dots_dentries:1421) --> Bad inode number[0x4] for '..', parent parent ino is [0x3] [FSCK] other corrupted bugs [Fail]
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 , < 02160112e6d45c2610b049df6eb693d7a2e57b46 (git)
Affected: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 , < 5624a3c1b1ebc8991318e1cce2aa719542991024 (git)
Affected: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 , < 6f866885e147d33efc497f1095f35b2ee5ec7310 (git)
Affected: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 , < f100ba617d8be6c98a68f3744ef7617082975b77 (git)
Affected: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 , < f0145860c20be6bae6785c7a2249577674702ac7 (git)
Affected: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 , < d3c0b49aaa12a61d560528f5d605029ab57f0728 (git)
Affected: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 , < 2fb4867f4405aea8c0519d7d188207f232a57862 (git)
Affected: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 , < 53edb549565f55ccd0bdf43be3d66ce4c2d48b28 (git)
Create a notification for this product.
Linux Linux Affected: 4.2
Unaffected: 0 , < 4.2 (semver)
Unaffected: 4.19.306 , ≤ 4.19.* (semver)
Unaffected: 5.4.268 , ≤ 5.4.* (semver)
Unaffected: 5.10.209 , ≤ 5.10.* (semver)
Unaffected: 5.15.148 , ≤ 5.15.* (semver)
Unaffected: 6.1.75 , ≤ 6.1.* (semver)
Unaffected: 6.6.14 , ≤ 6.6.* (semver)
Unaffected: 6.7.2 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Modified",
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And cross-directory\\nrename does move the source to new parent, even if you\u0027d been asked\\nto leave a whiteout in the old place.\\n\\n[1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/\\n\\nWith below testcase, it may cause dirent corruption, due to it missed\\nto call f2fs_set_link() to update \\\"..\\\" link to new directory.\\n- mkdir -p dir/foo\\n- renameat2 -w dir/foo bar\\n\\n[ASSERT] (__chk_dots_dentries:1421)  --\u003e Bad inode number[0x4] for \u0027..\u0027, parent parent ino is [0x3]\\n[FSCK] other corrupted bugs                           [Fail]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: f2fs: correcci\u00f3n para evitar corrupci\u00f3n directa Como inform\u00f3 Al en link[1]: f2fs_rename() ... if (old_dir != new_dir \u0026amp;\u0026amp; !whiteout) f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); dem\u00e1s f2fs_put_page(old_dir_page, 0); Quiere el n\u00famero correcto en el enlace \\\"..\\\" Y el cambio de nombre entre directorios mueve la fuente al nuevo padre, incluso si le hubieran pedido que dejara un espacio en blanco en el lugar anterior. [1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/ Con el siguiente caso de prueba, puede causar corrupci\u00f3n directa, debido a que no llam\u00f3 a f2fs_set_link() para actualizar el enlace \\\"..\\\" al nuevo directorio . - mkdir -p dir/foo - renameat2 -w dir/foo bar [ASSERT] (__chk_dots_dentries:1421) --\u0026gt; N\u00famero de inodo incorrecto [0x4] para \u0027..\u0027, el ino padre padre es [0x3] [FSCK] otro corrupto errores 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\"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/02160112e6d45c2610b049df6eb693d7a2e57b46\"}, {\"url\": \"https://git.kernel.org/stable/c/5624a3c1b1ebc8991318e1cce2aa719542991024\"}, {\"url\": \"https://git.kernel.org/stable/c/6f866885e147d33efc497f1095f35b2ee5ec7310\"}, {\"url\": \"https://git.kernel.org/stable/c/f100ba617d8be6c98a68f3744ef7617082975b77\"}, {\"url\": \"https://git.kernel.org/stable/c/f0145860c20be6bae6785c7a2249577674702ac7\"}, {\"url\": \"https://git.kernel.org/stable/c/d3c0b49aaa12a61d560528f5d605029ab57f0728\"}, {\"url\": \"https://git.kernel.org/stable/c/2fb4867f4405aea8c0519d7d188207f232a57862\"}, {\"url\": \"https://git.kernel.org/stable/c/53edb549565f55ccd0bdf43be3d66ce4c2d48b28\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nf2fs: fix to avoid dirent corruption\\n\\nAs Al reported in link[1]:\\n\\nf2fs_rename()\\n...\\n\\tif (old_dir != new_dir \u0026\u0026 !whiteout)\\n\\t\\tf2fs_set_link(old_inode, old_dir_entry,\\n\\t\\t\\t\\t\\told_dir_page, new_dir);\\n\\telse\\n\\t\\tf2fs_put_page(old_dir_page, 0);\\n\\nYou want correct inumber in the \\\"..\\\" link.  And cross-directory\\nrename does move the source to new parent, even if you\u0027d been asked\\nto leave a whiteout in the old place.\\n\\n[1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/\\n\\nWith below testcase, it may cause dirent corruption, due to it missed\\nto call f2fs_set_link() to update \\\"..\\\" link to new directory.\\n- mkdir -p dir/foo\\n- renameat2 -w dir/foo bar\\n\\n[ASSERT] (__chk_dots_dentries:1421)  --\u003e Bad inode number[0x4] for \u0027..\u0027, parent parent ino is [0x3]\\n[FSCK] other corrupted bugs                           [Fail]\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.306\", \"versionStartIncluding\": \"4.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.268\", \"versionStartIncluding\": \"4.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.209\", \"versionStartIncluding\": \"4.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.148\", \"versionStartIncluding\": \"4.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.75\", \"versionStartIncluding\": \"4.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.14\", \"versionStartIncluding\": \"4.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.2\", \"versionStartIncluding\": \"4.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"4.2\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:36:40.605Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52444\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:36:40.605Z\", \"dateReserved\": \"2024-02-20T12:30:33.291Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-02-22T16:21:37.043Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Detection rules are retrieved from Rulezet.