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(parent: a65c9af) | 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)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 12 Nov 2021 14:05:50 +0000 (15:05 +0100)
commite7fb722586a2936b37bdff096c095c30ca06404d
tree144e3ad142f3118b39f468c5fa04b918c0b2f1cbtree | snapshot
parenta65c9afe9f2f55b7a7fb4a25ab654cd4139683a4commit | diff
isofs: Fix out of bound access for corrupted isofs image

commit e96a1866b40570b5950cda8602c2819189c62a48 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/isofs/inode.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git