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authorLepton Wu <ytht.net@gmail.com>2007-10-16 23:29:50 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 08:42:57 -0700
commit80eb68d23897126e7f25e2b3689bc27fb8cdde17 (patch)
treef054c849b1e8856912050342fcb27d83a6f42830 /lib/iomap.c
parenta6cd6bf9f8cab154a4a086fe786bd7422954d8dc (diff)
downloadop-kernel-dev-80eb68d23897126e7f25e2b3689bc27fb8cdde17.zip
op-kernel-dev-80eb68d23897126e7f25e2b3689bc27fb8cdde17.tar.gz
reiserfs: fix kernel panic on corrupted directory
When reading corrupted reiserfs directory data, d_reclen could be a negative number or a big positive number, this can lead to kernel panic or oop. The following patch adds a sanity check. Signed-off-by: Lepton Wu <ytht.net@gmail.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: Jeff Mahoney <jeffm@suse.com> Cc: "Vladimir V. Saveliev" <vs@namesys.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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