CVE-2023-53091 (GCVE-0-2023-53091)

Vulnerability from cvelistv5 – Published: 2025-05-02 15:55 – Updated: 2026-01-05 10:18
VLAI?
Title
ext4: update s_journal_inum if it changes after journal replay
Summary
In the Linux kernel, the following vulnerability has been resolved: ext4: update s_journal_inum if it changes after journal replay When mounting a crafted ext4 image, s_journal_inum may change after journal replay, which is obviously unreasonable because we have successfully loaded and replayed the journal through the old s_journal_inum. And the new s_journal_inum bypasses some of the checks in ext4_get_journal(), which may trigger a null pointer dereference problem. So if s_journal_inum changes after the journal replay, we ignore the change, and rewrite the current journal_inum to the superblock.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 345c0dbf3a30872d9b204db96b5857cd00808cae , < 499fef2030fb754c68b1c7cb3a799a3bc1d0d925 (git)
Affected: 345c0dbf3a30872d9b204db96b5857cd00808cae , < 70e66bdeae4d0f7c8e87762f425b68aedd5e8955 (git)
Affected: 345c0dbf3a30872d9b204db96b5857cd00808cae , < ee0c5277d4fab920bd31345c49e193ecede9ecef (git)
Affected: 345c0dbf3a30872d9b204db96b5857cd00808cae , < 3039d8b8692408438a618fac2776b629852663c3 (git)
Affected: 51890201da4d654f6ca131bc45a0e892bb10de1d (git)
Affected: 7eff961ca9f364be255d279346517ba0158ec8e3 (git)
Affected: a9855260fe8d8680bf8c4f0d8303b696c861e99b (git)
Affected: 795762468125a6412c089651e74f780bee154118 (git)
Affected: 2fd4629de51974002f4e9cf1a35a1926dd6c9d99 (git)
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    Linux Linux Affected: 5.2
Unaffected: 0 , < 5.2 (semver)
Unaffected: 5.15.104 , ≤ 5.15.* (semver)
Unaffected: 6.1.21 , ≤ 6.1.* (semver)
Unaffected: 6.2.8 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
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      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: update s_journal_inum if it changes after journal replay\n\nWhen mounting a crafted ext4 image, s_journal_inum may change after journal\nreplay, which is obviously unreasonable because we have successfully loaded\nand replayed the journal through the old s_journal_inum. And the new\ns_journal_inum bypasses some of the checks in ext4_get_journal(), which\nmay trigger a null pointer dereference problem. So if s_journal_inum\nchanges after the journal replay, we ignore the change, and rewrite the\ncurrent journal_inum to the superblock."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-05T10:18:09.686Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
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      "title": "ext4: update s_journal_inum if it changes after journal replay",
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    "cveId": "CVE-2023-53091",
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    "dateReserved": "2025-05-02T15:51:43.552Z",
    "dateUpdated": "2026-01-05T10:18:09.686Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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