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libata: Avoid overflow in ata_tf_read_block() when tf->hba_lbal > 127
authorRoland Dreier <rdreier@cisco.com>
Tue, 4 Nov 2008 18:34:48 +0000 (10:34 -0800)
committerJeff Garzik <jgarzik@redhat.com>
Tue, 11 Nov 2008 07:59:27 +0000 (02:59 -0500)
commit44901a96847b9967c057832b185e2f34ee6a14e5
tree25f7948890de3b93bc93e5ce9938c2fc75348ea8tree | snapshot (tar.gz zip)
parenta12d6c9a09c644cb4a35be099eb5124d38e4feb8commit | diff
libata: Avoid overflow in ata_tf_read_block() when tf->hba_lbal > 127

Phillip O'Donnell <phillip.odonnell@gmail.com> pointed out that the same
sign extension bug that was fixed in commit ba14a9c2 ("libata: Avoid
overflow in ata_tf_to_lba48() when tf->hba_lbal > 127") also appears to
exist in ata_tf_read_block().  Fix this by adding a cast to u64.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
drivers/ata/libata-core.c diff | blob | blame | history