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| H A D | inode.c | diff 1ac49babc952f48d82676979b20885e480e69be8 Wed Sep 25 02:46:15 CDT 2024 Gianfranco Trad <gianf.trad@gmail.com> udf: fix uninit-value use in udf_get_fileshortad
[ Upstream commit 264db9d666ad9a35075cc9ed9ec09d021580fbb1 ]
Check for overflow when computing alen in udf_current_aext to mitigate
later uninit-value use in udf_get_fileshortad KMSAN bug[1].
After applying the patch reproducer did not trigger any issue[2].
[1] https://syzkaller.appspot.com/bug?extid=8901c4560b7ab5c2f9df
[2] https://syzkaller.appspot.com/x/log.txt?x=10242227980000
Reported-by: syzbot+8901c4560b7ab5c2f9df@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=8901c4560b7ab5c2f9df
Tested-by: syzbot+8901c4560b7ab5c2f9df@syzkaller.appspotmail.com
Suggested-by: Jan Kara <jack@suse.com>
Signed-off-by: Gianfranco Trad <gianf.trad@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20240925074613.8475-3-gianf.trad@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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