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| author | Sowmini Varadhan <sowmini.varadhan@oracle.com> | 2015-10-13 10:54:01 -0400 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-10-14 22:23:38 +0800 |
| commit | d71dd976730ea22f97ed43d26fe5ee02fdf84422 (patch) | |
| tree | dd7a56ed0d1a9f69fc52dc0aeb68b5de19429da5 /crypto/gf128mul.c | |
| parent | 9999042127f0f1a2efb18f6a88bfee07853b1f18 (diff) | |
| download | linux-crypto-d71dd976730ea22f97ed43d26fe5ee02fdf84422.tar.gz linux-crypto-d71dd976730ea22f97ed43d26fe5ee02fdf84422.zip | |
crypto: pkcs7 - Fix unaligned access in pkcs7_verify()
On sparc, we see unaligned access messages on each modprobe[-r]:
Kernel unaligned access at TPC[6ad9b4] pkcs7_verify [..]
Kernel unaligned access at TPC[6a5484] crypto_shash_finup [..]
Kernel unaligned access at TPC[6a5390] crypto_shash_update [..]
Kernel unaligned access at TPC[10150308] sha1_sparc64_update [..]
Kernel unaligned access at TPC[101501ac] __sha1_sparc64_update [..]
These ware triggered by mod_verify_sig() invocations of pkcs_verify(), and
are are being caused by an unaligned desc at (sha1, digest_size is 0x14)
desc = digest + digest_size;
To fix this, pkcs7_verify needs to make sure that desc is pointing
at an aligned value past the digest_size, and kzalloc appropriately,
taking alignment values into consideration.
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/gf128mul.c')
0 files changed, 0 insertions, 0 deletions