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buffer: Do cleanup if ssh_buffer_unpack() fails in the first loop

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Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Andreas Schneider
2018-09-19 10:11:07 +02:00
parent 07f7fa7806
commit 90373d8394
1 changed files with 3 additions and 1 deletions
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4
src/buffer.c
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@@ -1109,7 +1109,8 @@ int ssh_buffer_unpack_va(struct ssh_buffer_struct *buffer,
/* Invalid number of arguments passed */
if (argc != -1 && count > argc) {
va_end(ap_copy);
return SSH_ERROR;
rc = SSH_ERROR;
goto cleanup;
}
switch (*p) {
@@ -1221,6 +1222,7 @@ int ssh_buffer_unpack_va(struct ssh_buffer_struct *buffer,
rc = SSH_ERROR;
}
cleanup:
if (rc != SSH_ERROR){
/* Check if our canary is intact, if not something really bad happened */
uint32_t canary = va_arg(ap, uint32_t);