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(parent: 6ef43cf) | patch
isofs: Fix off-by-one in 'session' mount option parsing
authorJan Kara <jack@suse.cz>
Tue, 18 Jul 2017 10:27:56 +0000 (12:27 +0200)
committerJan Kara <jack@suse.cz>
Tue, 18 Jul 2017 10:33:16 +0000 (12:33 +0200)
commitfc45f2d5ace967b2711842d90d39a840cf0102f8
tree7108d5e9650581495e1733188f453cec9711aa71tree | snapshot
parent6ef43cfefd32a41d914914207b6016bb3fd295ebcommit | diff
isofs: Fix off-by-one in 'session' mount option parsing

According to ECMA-130 standard maximum valid track number is 99. Since
'session' mount option starts indexing at 0 (and we add 1 to the passed
number), we should refuse value 99. Also the condition in
isofs_get_last_session() unnecessarily repeats the check - remove it.

Reported-by: David Howells <dhowells@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
fs/isofs/inode.c diff | blob | history
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