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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-09 20:19:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-09 20:19:50 -0700 |
| commit | d02a9a89db3437467de45a451739e520877f4a48 (patch) | |
| tree | a5cbd992bb3ee41470fbe6d5bbd16d4fdb960ef2 /crypto | |
| parent | 49b442caa4ed719aa7e2522cdd5c8abf8607b860 (diff) | |
| parent | d47cbd5bcee7c7a08fc0283dda465375fa1b1fda (diff) | |
| download | linux-3.10-d02a9a89db3437467de45a451739e520877f4a48.tar.gz linux-3.10-d02a9a89db3437467de45a451739e520877f4a48.tar.bz2 linux-3.10-d02a9a89db3437467de45a451739e520877f4a48.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
"This fixes a GCM bug that breaks IPsec and a compile problem in
ux500."
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: ux500 - add missing comma
crypto: gcm - fix assumption that assoc has one segment
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/gcm.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/crypto/gcm.c b/crypto/gcm.c index 137ad1ec543..13ccbda34ff 100644 --- a/crypto/gcm.c +++ b/crypto/gcm.c @@ -44,6 +44,7 @@ struct crypto_rfc4543_ctx { struct crypto_rfc4543_req_ctx { u8 auth_tag[16]; + u8 assocbuf[32]; struct scatterlist cipher[1]; struct scatterlist payload[2]; struct scatterlist assoc[2]; @@ -1133,9 +1134,19 @@ static struct aead_request *crypto_rfc4543_crypt(struct aead_request *req, scatterwalk_crypto_chain(payload, dst, vdst == req->iv + 8, 2); assoclen += 8 + req->cryptlen - (enc ? 0 : authsize); - sg_init_table(assoc, 2); - sg_set_page(assoc, sg_page(req->assoc), req->assoc->length, - req->assoc->offset); + if (req->assoc->length == req->assoclen) { + sg_init_table(assoc, 2); + sg_set_page(assoc, sg_page(req->assoc), req->assoc->length, + req->assoc->offset); + } else { + BUG_ON(req->assoclen > sizeof(rctx->assocbuf)); + + scatterwalk_map_and_copy(rctx->assocbuf, req->assoc, 0, + req->assoclen, 0); + + sg_init_table(assoc, 2); + sg_set_buf(assoc, rctx->assocbuf, req->assoclen); + } scatterwalk_crypto_chain(assoc, payload, 0, 2); aead_request_set_tfm(subreq, ctx->child); |