CVE-2025-68239

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.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/480ac88431703f2adbb8e6b5bd73c3f3cf9f3d7f
https://git.kernel.org/stable/c/54274ff90488b6c0f595a6518faed3cf0bc966eb
https://git.kernel.org/stable/c/6cce7bc7fac8471c832696720d9c8f2a976d9c54
https://git.kernel.org/stable/c/90f601b497d76f40fa66795c3ecf625b6aced9fd
https://git.kernel.org/stable/c/e785f552ab04dbca01d31f0334f4561240b04459
https://git.kernel.org/stable/c/fbab8c08e1a6dbaef81e22d672a7647553101d16

Configurations

No configuration.

History

No history.

Information

Published : 2025-12-16 15:15

Updated : 2026-06-17 09:58

NVD link : CVE-2025-68239

Mitre link : CVE-2025-68239

CVE.ORG link : CVE-2025-68239

JSON object : View

Products Affected

No product.

CWE

No CWE.

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This does not restore the write permission, which\nmay cause subsequent write operations on the same file to fail.\n\nFix this by calling exe_file_allow_write_access() before filp_close() to\nrestore the write permission properly."}], "lastModified": "2026-06-17T09:58:47.200", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}