| commit | d24396c5290ba8ab04ba505176874c4e04a2d53c | [log] [tgz] |
|---|---|---|
| author | Rustam Kovhaev <rkovhaev@gmail.com> | Sun Nov 01 06:09:58 2020 -0800 |
| committer | Jan Kara <jack@suse.cz> | Thu Nov 26 16:57:28 2020 +0100 |
| tree | 0d6db3f24d2c3ad33148c2246215f3010cb6f963 | |
| parent | 8fca3c8a3451514c6f20dd26d5e66e78220d16e3 [diff] |
reiserfs: add check for an invalid ih_entry_count when directory item has an invalid value set for ih_entry_count it might trigger use-after-free or out-of-bounds read in bin_search_in_dir_item() ih_entry_count * IH_SIZE for directory item should not be larger than ih_item_len Link: https://lore.kernel.org/r/20201101140958.3650143-1-rkovhaev@gmail.com Reported-and-tested-by: syzbot+83b6f7cf9922cae5c4d7@syzkaller.appspotmail.com Link: https://syzkaller.appspot.com/bug?extid=83b6f7cf9922cae5c4d7 Signed-off-by: Rustam Kovhaev <rkovhaev@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>