4 Commits

Author	SHA1	Message	Date
Adhemerval Zanella	ed6a68bac7	debug: Improve '%n' fortify detection (BZ 30932) ... The 7bb8045ec0 path made the '%n' fortify check ignore EMFILE errors while trying to open /proc/self/maps, and this added a security issue where EMFILE can be attacker-controlled thus making it ineffective for some cases. The EMFILE failure is reinstated but with a different error message. Also, to improve the false positive of the hardening for the cases where no new files can be opened, the _dl_readonly_area now uses _dl_find_object to check if the memory area is within a writable ELF segment. The procfs method is still used as fallback. Checked on x86_64-linux-gnu and i686-linux-gnu. Reviewed-by: Arjun Shankar <arjun@redhat.com>	2025-03-21 15:46:48 -03:00
Paul Eggert	2642002380	Update copyright dates with scripts/update-copyrights	2025-01-01 11:22:09 -08:00
Paul Eggert	dff8da6b3e	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
Adhemerval Zanella	be7a5468d4	debug: Add regression tests for BZ 30932 ... Checked on x86_64-linux-gnu. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>	2023-10-04 08:07:43 -03:00