[PATCH v2 4/6] secur32: Validate the context handle in schan_InitializeSecurityContextW().
Hans Leidekker
hans at codeweavers.com
Thu Oct 28 13:19:27 CDT 2021
Signed-off-by: Hans Leidekker <hans at codeweavers.com>
---
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);
--
2.30.2
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