diff options
Diffstat (limited to 'meta/recipes-connectivity/openssh/openssh-6.2p2/mac.patch')
| -rw-r--r-- | meta/recipes-connectivity/openssh/openssh-6.2p2/mac.patch | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/meta/recipes-connectivity/openssh/openssh-6.2p2/mac.patch b/meta/recipes-connectivity/openssh/openssh-6.2p2/mac.patch new file mode 100644 index 0000000000..69fb69daeb --- /dev/null +++ b/meta/recipes-connectivity/openssh/openssh-6.2p2/mac.patch @@ -0,0 +1,76 @@ +[PATCH] force the MAC output to be 64-bit aligned + +Upstream-Status: Backport[anoncvs.mindrot.org/index.cgi/openssh/mac.c?r1=1.27&r2=1.28] + +Backport patch to fix segment fault due to unaligned memory access + +Wed Jun 5 22:12:37 2013 UTC (7 days, 3 hours ago) by dtucker +Branch: MAIN +CVS Tags: HEAD +Changes since 1.27: +11 -8 lines +Diff to previous 1.27 + + - dtucker@cvs.openbsd.org 2013/06/03 00:03:18 + [mac.c] + force the MAC output to be 64-bit aligned so umac won't see +unaligned + accesses on strict-alignment architectures. bz#2101, patch from + tomas.kuthan at oracle.com, ok djm@ +--- + mac.c | 18 +++++++++++------- + 1 file changed, 11 insertions(+), 7 deletions(-) + +diff --git a/mac.c b/mac.c +index 3f2dc6f..a5a80d3 100644 +--- a/mac.c ++++ b/mac.c +@@ -152,12 +152,16 @@ mac_init(Mac *mac) + u_char * + mac_compute(Mac *mac, u_int32_t seqno, u_char *data, int datalen) + { +- static u_char m[EVP_MAX_MD_SIZE]; ++ static union { ++ u_char m[EVP_MAX_MD_SIZE]; ++ u_int64_t for_align; ++ } u; ++ + u_char b[4], nonce[8]; + +- if (mac->mac_len > sizeof(m)) ++ if (mac->mac_len > sizeof(u)) + fatal("mac_compute: mac too long %u %lu", +- mac->mac_len, (u_long)sizeof(m)); ++ mac->mac_len, (u_long)sizeof(u)); + + switch (mac->type) { + case SSH_EVP: +@@ -166,22 +170,22 @@ mac_compute(Mac *mac, u_int32_t seqno, u_char *data, int datalen) + HMAC_Init(&mac->evp_ctx, NULL, 0, NULL); + HMAC_Update(&mac->evp_ctx, b, sizeof(b)); + HMAC_Update(&mac->evp_ctx, data, datalen); +- HMAC_Final(&mac->evp_ctx, m, NULL); ++ HMAC_Final(&mac->evp_ctx, u.m, NULL); + break; + case SSH_UMAC: + put_u64(nonce, seqno); + umac_update(mac->umac_ctx, data, datalen); +- umac_final(mac->umac_ctx, m, nonce); ++ umac_final(mac->umac_ctx, u.m, nonce); + break; + case SSH_UMAC128: + put_u64(nonce, seqno); + umac128_update(mac->umac_ctx, data, datalen); +- umac128_final(mac->umac_ctx, m, nonce); ++ umac128_final(mac->umac_ctx, u.m, nonce); + break; + default: + fatal("mac_compute: unknown MAC type"); + } +- return (m); ++ return (u.m); + } + + void +-- +1.7.9.5 + |