CVE-2025-68239

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> binfmt_misc: restore write access before closing files opened by open_exec()<br /> <br /> bm_register_write() opens an executable file using open_exec(), which<br /> internally calls do_open_execat() and denies write access on the file to<br /> avoid modification while it is being executed.<br /> <br /> However, when an error occurs, bm_register_write() closes the file using<br /> filp_close() directly. This does not restore the write permission, which<br /> may cause subsequent write operations on the same file to fail.<br /> <br /> Fix this by calling exe_file_allow_write_access() before filp_close() to<br /> restore the write permission properly.