xfs: prevent kernel crash due to corrupted inode log format

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Andras Korn reported an oops on log replay causes by a corrupted
xfs_inode_log_format_t passing a 0 size to kmem_zalloc.  This patch handles
to small or too large numbers of log regions gracefully by rejecting the
log replay with a useful error message.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Andras Korn <korn-sgi.com@chardonnay.math.bme.hu>
Reviewed-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Felix Blyakher <felixb@sgi.com>

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Christoph Hellwig 2009-03-03 14:48:36 -05:00 • committed by Felix Blyakher

parent 27e88bf6af

commit ff392c497b

1 changed files with 13 additions and 4 deletions

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fs/xfs/xfs_log_recover.c

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