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authorPhillip Lougher <phillip@lougher.demon.co.uk>2011-05-24 04:05:22 +0100
committerPhillip Lougher <phillip@lougher.demon.co.uk>2011-05-25 18:21:32 +0100
commit37986f63c81bf23c856f65fc5e4830550e7f3d5b (patch)
treeaafcc2078b469fb8fdb6e43255e136fcc7059dc9 /COPYING
parent6f04864515365e135adc9f1cee4ac1251bb0ed35 (diff)
Squashfs: add sanity checks to id reading at mount time
Fsfuzzer generates corrupted filesystems which throw a warn_on in kmalloc. One of these is due to a corrupted superblock no_ids field. Fix this by checking that the number of bytes to be read (and allocated) does not extend into the next filesystem structure. Also add a couple of other sanity checks of the mount-time id table structures. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
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