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(parent: 0e5cc9a) | patch
udf: Check component length before reading it
authorJan Kara <jack@suse.cz>
Fri, 19 Dec 2014 13:27:55 +0000 (14:27 +0100)
committerJan Kara <jack@suse.cz>
Sun, 21 Dec 2014 21:42:19 +0000 (22:42 +0100)
commite237ec37ec154564f8690c5bd1795339955eeef9
tree33e14928a5c2fdee03df67e2e1e4f9991e056fc7tree | snapshot
parent0e5cc9a40ada6046e6bc3bdfcd0c0d7e4b706b14commit | diff
udf: Check component length before reading it

Check that length specified in a component of a symlink fits in the
input buffer we are reading. Also properly ignore component length for
component types that do not use it. Otherwise we read memory after end
of buffer for corrupted udf image.

Reported-by: Carl Henrik Lunde <chlunde@ping.uio.no>
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
fs/udf/symlink.c diff | blob | history
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