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.
| Score | Percentile |
|---|---|
| 0.06% | 18.38% |
No CVSS scores in this advisory.
| Type | Value |
|---|---|
| GHSA | GHSA-6286-qq46-83p9 ↗ |
| CVE | CVE-2025-68239 ↗ |