aboutsummaryrefslogtreecommitdiffstats
path: root/net/sctp
diff options
context:
space:
mode:
authorVlad Yasevich <vladislav.yasevich@hp.com>2006-01-17 14:55:57 -0500
committerSridhar Samudrala <sri@us.ibm.com>2006-01-17 14:55:57 -0500
commit313e7b4d2588539e388d31c1febd50503a0083fc (patch)
treeaa39d488fbb9f3ad48afdec3ef48b49f6fb4a197 /net/sctp
parent8116ffad4180b39d7a755345c1fde09da83930c0 (diff)
[SCTP]: Fix machine check/connection hang on IA64.
sctp_unpack_cookie used an on-stack array called digest as a result/out parameter in the call to crypto_hmac. However, hmac code (crypto_hmac_final) assumes that the 'out' argument is in virtual memory (identity mapped region) and can use virt_to_page call on it. This does not work with the on-stack declared digest. The problems observed so far have been: a) incorrect hmac digest b) machine check and hardware reset. Solution is to define the digest in an identity mapped region by kmalloc'ing it. We can do this once as part of the endpoint structure and re-use it when verifying the SCTP cookie. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Diffstat (limited to 'net/sctp')
-rw-r--r--net/sctp/sm_make_chunk.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 4fe1d6c863b1..5e0de3c0eead 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -1359,7 +1359,7 @@ struct sctp_association *sctp_unpack_cookie(
1359 struct sctp_signed_cookie *cookie; 1359 struct sctp_signed_cookie *cookie;
1360 struct sctp_cookie *bear_cookie; 1360 struct sctp_cookie *bear_cookie;
1361 int headersize, bodysize, fixed_size; 1361 int headersize, bodysize, fixed_size;
1362 __u8 digest[SCTP_SIGNATURE_SIZE]; 1362 __u8 *digest = ep->digest;
1363 struct scatterlist sg; 1363 struct scatterlist sg;
1364 unsigned int keylen, len; 1364 unsigned int keylen, len;
1365 char *key; 1365 char *key;