CVE-2025-68239 - CVE House
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Status published Unknown CVE-2025-68239

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

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
e7850f4d844e0acfac7e570af611d89deade3146, 467a50d5db7deaf656e18a1f633be9ecd94b393a, 4a8b4124ea4156ca52918b66c750a69c6d932aa5, 3fe116e33a855bbfdd32dc207e9be2a41e3ed3a6, c0e0ab60d0b15469e69db93215dad009999f5a5b, 5ab9464a2a3c538eedbb438f1802f2fd98d0953f, d28492be82e19fc69cc69975fc2052b37ef0c821, 4.9.262, 4.14.226, 4.19.181, 5.4.106, 5.10.24, 5.11.7, 5.12, 0, 5.15.209, 6.1.167, 6.6.130, 6.12.78, 6.17.9, 6.18

Timeline

Official Publish: December 16th, 2025
Last Modified: June 1st, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.