Hans Leidekker : secur32: Validate the context handle in schan_InitializeSecurityContextW().
Alexandre Julliard
julliard at winehq.org
Fri Oct 29 16:29:07 CDT 2021
Module: wine
Branch: master
Commit: c1993458ac3b4be9af4f8c47f5de2cbd739f902b
URL: https://source.winehq.org/git/wine.git/?a=commit;h=c1993458ac3b4be9af4f8c47f5de2cbd739f902b
Author: Hans Leidekker <hans at codeweavers.com>
Date: Thu Oct 28 20:19:27 2021 +0200
secur32: Validate the context handle in schan_InitializeSecurityContextW().
Signed-off-by: Hans Leidekker <hans at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/secur32/schannel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/dlls/secur32/schannel.c b/dlls/secur32/schannel.c
index fdf8e990f62..5b1a910a361 100644
--- a/dlls/secur32/schannel.c
+++ b/dlls/secur32/schannel.c
@@ -984,7 +984,7 @@ static SECURITY_STATUS SEC_ENTRY schan_InitializeSecurityContextW(
SIZE_T record_size = 0;
unsigned char *ptr;
- ctx = schan_get_object(phContext->dwLower, SCHAN_HANDLE_CTX);
+ if (!(ctx = schan_get_object(phContext->dwLower, SCHAN_HANDLE_CTX))) return SEC_E_INVALID_HANDLE;
if (pInput)
{
idx = schan_find_sec_buffer_idx(pInput, 0, SECBUFFER_TOKEN);
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