CVE-2025-68239binfmt_misc: restore write access before closing files opened by open_exec()
Updated under an hour ago ()
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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
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Deferred
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from e7850f4d844e0acfac7e570af611d89deade3146 before 54274ff90488b6c0f595a6518faed3cf0bc966eb; from e7850f4d844e0acfac7e570af611d89deade3146 before 480ac88431703f2adbb8e6b5bd73c3f3cf9f3d7f; from e7850f4d844e0acfac7e570af611d89deade3146 before fbab8c08e1a6dbaef81e22d672a7647553101d16; from e7850f4d844e0acfac7e570af611d89deade3146 before 6cce7bc7fac8471c832696720d9c8f2a976d9c54; from e7850f4d844e0acfac7e570af611d89deade3146 before e785f552ab04dbca01d31f0334f4561240b04459; from e7850f4d844e0acfac7e570af611d89deade3146 before 90f601b497d76f40fa66795c3ecf625b6aced9fd; 467a50d5db7deaf656e18a1f633be9ecd94b393a; 4a8b4124ea4156ca52918b66c750a69c6d932aa5; and 10 more ranges | CNA record |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | all versions | CISA ADP |
References
- https://git.kernel.org/stable/c/54274ff90488b6c0f595a6518faed3cf0bc966eb
- https://git.kernel.org/stable/c/480ac88431703f2adbb8e6b5bd73c3f3cf9f3d7f
- https://git.kernel.org/stable/c/fbab8c08e1a6dbaef81e22d672a7647553101d16
- https://git.kernel.org/stable/c/6cce7bc7fac8471c832696720d9c8f2a976d9c54
- https://git.kernel.org/stable/c/e785f552ab04dbca01d31f0334f4561240b04459
- https://git.kernel.org/stable/c/90f601b497d76f40fa66795c3ecf625b6aced9fd
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.