CVE-2025-68239 (GCVE-0-2025-68239)

Vulnerability from cvelistv5 – Published: 2025-12-16 14:21 – Updated: 2026-05-23 16:02
VLAI
Title
binfmt_misc: restore write access before closing files opened by open_exec()
Summary
In the Linux kernel, the following vulnerability has been resolved: binfmt_misc: restore write access before closing files opened by open_exec() bm_register_write() opens an executable file using open_exec(), which internally calls do_open_execat() and denies write access on the file to avoid modification while it is being executed. However, when an error occurs, bm_register_write() closes the file using filp_close() directly. This does not restore the write permission, which may cause subsequent write operations on the same file to fail. Fix this by calling exe_file_allow_write_access() before filp_close() to restore the write permission properly.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e7850f4d844e0acfac7e570af611d89deade3146 , < 480ac88431703f2adbb8e6b5bd73c3f3cf9f3d7f (git)
Affected: e7850f4d844e0acfac7e570af611d89deade3146 , < fbab8c08e1a6dbaef81e22d672a7647553101d16 (git)
Affected: e7850f4d844e0acfac7e570af611d89deade3146 , < 6cce7bc7fac8471c832696720d9c8f2a976d9c54 (git)
Affected: e7850f4d844e0acfac7e570af611d89deade3146 , < e785f552ab04dbca01d31f0334f4561240b04459 (git)
Affected: e7850f4d844e0acfac7e570af611d89deade3146 , < 90f601b497d76f40fa66795c3ecf625b6aced9fd (git)
Affected: 467a50d5db7deaf656e18a1f633be9ecd94b393a (git)
Affected: 4a8b4124ea4156ca52918b66c750a69c6d932aa5 (git)
Affected: 3fe116e33a855bbfdd32dc207e9be2a41e3ed3a6 (git)
Affected: c0e0ab60d0b15469e69db93215dad009999f5a5b (git)
Affected: 5ab9464a2a3c538eedbb438f1802f2fd98d0953f (git)
Affected: d28492be82e19fc69cc69975fc2052b37ef0c821 (git)
Affected: 4.9.262 , < 4.10 (semver)
Affected: 4.14.226 , < 4.15 (semver)
Affected: 4.19.181 , < 4.20 (semver)
Affected: 5.4.106 , < 5.5 (semver)
Affected: 5.10.24 , < 5.11 (semver)
Affected: 5.11.7 , < 5.12 (semver)
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Linux Linux Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 6.1.167 , ≤ 6.1.* (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.78 , ≤ 6.12.* (semver)
Unaffected: 6.17.9 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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  }
}


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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.