Cramfs: fix abad comparison when wrap-arounds occur

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commit 672ca9dd13 upstream.

It is possible for corrupted filesystem images to produce very large
block offsets that may wrap when a length is added, and wrongly pass
the buffer size test.

Reported-by: Anatoly Trosinenko <anatoly.trosinenko@gmail.com>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

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Nicolas Pitre 2018-10-30 13:26:15 -04:00 • committed by Ben Hutchings

parent 726c9c3c6b

commit 21e6710a43

1 changed files with 2 additions and 1 deletions

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fs/cramfs/inode.c

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