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hfsplus: fix overflow in sector calculations in hfsplus_submit_bio

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commit a6dc8c0421 upstream.

The variable io_size was unsigned int, which caused the wrong sector number
to be calculated after aligning it. This then caused mount to fail with big
volumes, as backup volume header information was searched from a
wrong sector.

Signed-off-by: Janne Kalliomäki <janne@tuxera.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Janne Kalliomäki
2012-06-17 17:05:24 -04:00
committed by Greg Kroah-Hartman
parent 41a38d5005
commit 1466988e8b
1 changed files with 1 additions and 1 deletions
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2
fs/hfsplus/wrapper.c
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@@ -56,7 +56,7 @@ int hfsplus_submit_bio(struct super_block *sb, sector_t sector,
DECLARE_COMPLETION_ONSTACK(wait);
struct bio *bio;
int ret = 0;
unsigned int io_size;
u64 io_size;
loff_t start;
int offset;