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| author |   Rustam Kovhaev <rkovhaev@gmail.com> | 2020-11-01 06:09:58 -0800 |
|---|---|---|
| committer |   Jan Kara <jack@suse.cz> | 2020-11-26 16:57:28 +0100 |
| commit | d24396c5290ba8ab04ba505176874c4e04a2d53c (patch) | |
| tree | 0d6db3f24d2c3ad33148c2246215f3010cb6f963 /fs/quota | |
| parent | ext2: Fix fall-through warnings for Clang (diff) | |
| download | wireguard-linux-d24396c5290ba8ab04ba505176874c4e04a2d53c.tar.xz wireguard-linux-d24396c5290ba8ab04ba505176874c4e04a2d53c.zip | |
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>
Diffstat (limited to 'fs/quota')
0 files changed, 0 insertions, 0 deletions