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pki: Avoid a null pointer derefrence

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CID 1401434

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Andreas Schneider
2019-05-28 08:33:22 +02:00
parent cb502a4a6d
commit 18a89c6ec2
1 changed files with 2 additions and 1 deletions
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3
src/pki.c
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@@ -2152,13 +2152,14 @@ int ssh_pki_signature_verify(ssh_session session,
size_t input_len) size_t input_len)
{ {
int rc; int rc;
enum ssh_keytypes_e key_type = ssh_key_type_plain(key->type); enum ssh_keytypes_e key_type;
if (session == NULL || sig == NULL || key == NULL || input == NULL) { if (session == NULL || sig == NULL || key == NULL || input == NULL) {
SSH_LOG(SSH_LOG_TRACE, "Bad parameter provided to " SSH_LOG(SSH_LOG_TRACE, "Bad parameter provided to "
"ssh_pki_signature_verify()"); "ssh_pki_signature_verify()");
return SSH_ERROR; return SSH_ERROR;
} }
key_type = ssh_key_type_plain(key->type);
SSH_LOG(SSH_LOG_FUNCTIONS, SSH_LOG(SSH_LOG_FUNCTIONS,
"Going to verify a %s type signature", "Going to verify a %s type signature",