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CVE PROGRAM SOURCE RECORDUnscored

CVE-2025-68239

binfmt_misc: restore write access before closing files opened by open_exec()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • e7850f4d844e0acfac7e570af611d89deade3146 to < 54274ff90488b6c0f595a6518faed3cf0bc966ebaffected
  • e7850f4d844e0acfac7e570af611d89deade3146 to < 480ac88431703f2adbb8e6b5bd73c3f3cf9f3d7faffected
  • e7850f4d844e0acfac7e570af611d89deade3146 to < fbab8c08e1a6dbaef81e22d672a7647553101d16affected
  • e7850f4d844e0acfac7e570af611d89deade3146 to < 6cce7bc7fac8471c832696720d9c8f2a976d9c54affected
  • e7850f4d844e0acfac7e570af611d89deade3146 to < e785f552ab04dbca01d31f0334f4561240b04459affected
  • e7850f4d844e0acfac7e570af611d89deade3146 to < 90f601b497d76f40fa66795c3ecf625b6aced9fdaffected
  • 467a50d5db7deaf656e18a1f633be9ecd94b393aaffected
  • 4a8b4124ea4156ca52918b66c750a69c6d932aa5affected
  • 3fe116e33a855bbfdd32dc207e9be2a41e3ed3a6affected
  • c0e0ab60d0b15469e69db93215dad009999f5a5baffected
  • 5ab9464a2a3c538eedbb438f1802f2fd98d0953faffected
  • d28492be82e19fc69cc69975fc2052b37ef0c821affected
  • 4.9.262 to < 4.10affected
  • 4.14.226 to < 4.15affected
  • 4.19.181 to < 4.20affected
  • 5.4.106 to < 5.5affected
  • 5.10.24 to < 5.11affected
  • 5.11.7 to < 5.12affected

Linux Linux

Default version status: affected

  • 5.12affected
  • 0 to < 5.12unaffected
  • 5.15.209 to ≤ 5.15.*unaffected
  • 6.1.167 to ≤ 6.1.*unaffected
  • 6.6.130 to ≤ 6.6.*unaffected
  • 6.12.78 to ≤ 6.12.*unaffected
  • 6.17.9 to ≤ 6.17.*unaffected
  • 6.18 to ≤ *unaffected

References