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(parent: d0e36a6) | patch
isofs: Fix out of bound access for corrupted isofs image
authorJan Kara <jack@suse.cz>
Mon, 18 Oct 2021 10:37:41 +0000 (12:37 +0200)
committerJan Kara <jack@suse.cz>
Tue, 19 Oct 2021 10:51:02 +0000 (12:51 +0200)
commite96a1866b40570b5950cda8602c2819189c62a48
treebc072688dd9d5cf68965fb96e6f34de6c9675151tree | snapshot
parentd0e36a62bd4c60c09acc40e06ba4831a4d0bc75bcommit | diff
isofs: Fix out of bound access for corrupted isofs image

When isofs image is suitably corrupted isofs_read_inode() can read data
beyond the end of buffer. Sanity-check the directory entry length before
using it.

Reported-and-tested-by: syzbot+6fc7fb214625d82af7d1@syzkaller.appspotmail.com
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
fs/isofs/inode.c diff | blob | history
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