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Fix pam_ssh_agent_auth segfaults with non-accepted keys (#1303036)

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This commit is contained in:
Jakub Jelen 2016-01-30 01:11:32 +01:00
parent d1b43a2865
commit c08255b7b1
1 changed files with 25 additions and 0 deletions
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25
pam_ssh_agent_auth-0.10.2-compat.patch
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@ -686,3 +686,28 @@ diff -up openssh-7.1p2/pam_ssh_agent_auth-0.10.2/uuencode.c.psaa-xfree openssh-7
- pamsshagentauth_xfree(buf);
+ free(buf);
}
diff --git a/pam_ssh_agent_auth-0.10.2/userauth_pubkey_from_id.c b/pam_ssh_agent_auth-0.10.2/userauth_pubkey_from_id.c
index d5a574f..9e866c1 100644
--- a/pam_ssh_agent_auth-0.10.2/userauth_pubkey_from_id.c
+++ b/pam_ssh_agent_auth-0.10.2/userauth_pubkey_from_id.c
@@ -68,10 +68,10 @@ userauth_pubkey_from_id(const char *ruser, Identity * id, Buffer * session_id2)
/* first test if this key is even allowed */
if(! pam_user_key_allowed(ruser, id->key))
- goto user_auth_clean_exit;
+ goto user_auth_clean_exit_without_buffer;
if(key_to_blob(id->key, &pkblob, &blen) == 0)
- goto user_auth_clean_exit;
+ goto user_auth_clean_exit_without_buffer;
/* construct packet to sign and test */
buffer_init(&b);
@@ -95,6 +95,7 @@ userauth_pubkey_from_id(const char *ruser, Identity * id, Buffer * session_id2)
user_auth_clean_exit:
/* if(&b != NULL) */
buffer_free(&b);
+ user_auth_clean_exit_without_buffer:
if(sig != NULL)
free(sig);
if(pkblob != NULL)