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(parent: e7293fd) | patch
ext4: fix data offset overflow in ext4_xattr_fiemap() on 32-bit archs
authorJan Kara <jack@suse.cz>
Fri, 31 May 2013 23:38:56 +0000 (19:38 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Fri, 31 May 2013 23:38:56 +0000 (19:38 -0400)
commita60697f411eb365fb09e639e6f183fe33d1eb796
tree63984e881d515f73892c6d1d1336ac2fe084bb37tree | snapshot
parente7293fd146846e2a44d29e0477e0860c60fb856bcommit | diff
ext4: fix data offset overflow in ext4_xattr_fiemap() on 32-bit archs

On 32-bit architectures with 32-bit sector_t computation of data offset
in ext4_xattr_fiemap() can overflow resulting in reporting bogus data
location. Fix the problem by typing block number to proper type before
shifting.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
fs/ext4/extents.c diff | blob | history
Domain: System / Kernel;