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(parent: 4a47581) | patch
udf: Limit sparing table size
authorJan Kara <jack@suse.cz>
Fri, 25 Sep 2020 12:53:08 +0000 (14:53 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 29 Oct 2020 08:05:44 +0000 (09:05 +0100)
commitf96c6586a812a006876cbed6ba2fbd68f77f0389
tree890d60c2a55330c0485f7f20121561e60d011654tree | snapshot
parent4a47581cf010dc351d8069978080fdb000c0776dcommit | diff
udf: Limit sparing table size

[ Upstream commit 44ac6b829c4e173fdf6df18e6dd86aecf9a3dc99 ]

Although UDF standard allows it, we don't support sparing table larger
than a single block. Check it during mount so that we don't try to
access memory beyond end of buffer.

Reported-by: syzbot+9991561e714f597095da@syzkaller.appspotmail.com
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
fs/udf/super.c diff | blob | history
Domain: System / Kernel;