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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2007-09-11 10:31:59 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-09-26 10:54:41 -0700 |
| commit | 01add92dd4be6b4641219ea616bc31e6337cbd6c (patch) | |
| tree | 1a693dcadabeb90b5dc7ebd42391ef9ffceee12a /drivers/i2c/algos/i2c-algo-bit.c | |
| parent | d2f7a9bf48930c25bbd293c28641a8f251c44474 (diff) | |
crypto: blkcipher_get_spot() handling of buffer at end of page
This corresponds to upstream changesets
e4630f9fd8cdc14eb1caa08dafe649eb5ae09985 and
32528d0fbda1093eeeaa7d0a2c498bbb5154099d.
[CRYPTO] blkcipher: Fix handling of kmalloc page straddling
The function blkcipher_get_spot tries to return a buffer of
the specified length that does not straddle a page. It has
an off-by-one bug so it may advance a page unnecessarily.
What's worse, one of its callers doesn't provide a buffer
that's sufficiently long for this operation.
This patch fixes both problems. Thanks to Bob Gilligan for
diagnosing this problem and providing a fix.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/i2c/algos/i2c-algo-bit.c')
0 files changed, 0 insertions, 0 deletions