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(parent: 8955c47) | 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)
commit0863ef9f82ff8c0544ae618f6c5b055f3911910f
tree63984e881d515f73892c6d1d1336ac2fe084bb37tree | snapshot
parent8955c47b10e8dfca9838f2bbaa2f81dfd6dae5d9commit | 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
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