udf: Fix BUG on corrupted inode
authorJan Kara <jack@suse.cz>
Wed, 12 Dec 2018 13:29:20 +0000 (14:29 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 12 Feb 2019 18:44:55 +0000 (19:44 +0100)
commit46171c3288228a0200f677d166080fd856f21980
treebe3f06bf0194a1bac53af6700982bfda637801e5
parentf12dcce8351907abffc6a4b6b4f39629ee4b274d
udf: Fix BUG on corrupted inode

[ Upstream commit d288d95842f1503414b7eebce3773bac3390457e ]

When inode is corrupted so that extent type is invalid, some functions
(such as udf_truncate_extents()) will just BUG. Check that extent type
is valid when loading the inode to memory.

Reported-by: Anatoly Trosinenko <anatoly.trosinenko@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
fs/udf/inode.c