tor-browser

commit b4f44dfecb7947da0308ee1d8b3de64a674d9870
parent b892fb0096ffd322c8b7c3d8e99cc098d05da4fc
Author: John M. Schanck <jschanck@mozilla.com>
Date:   Sat, 20 Dec 2025 00:07:47 +0000

Bug 2006405 - fix PRF extension handling in passkey creation on windows. r=keeler

Differential Revision: https://phabricator.services.mozilla.com/D277263

Diffstat:
M
dom/webauthn/WinWebAuthnService.cpp
 | 
4
+++-

1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/dom/webauthn/WinWebAuthnService.cpp b/dom/webauthn/WinWebAuthnService.cpp
@@ -529,7 +529,9 @@ WinWebAuthnService::MakeCredential(uint64_t aTransactionId,
         nsTArray<uint8_t> prfEvalFirst;
         nsTArray<uint8_t> prfEvalSecond;
         WEBAUTHN_HMAC_SECRET_SALT prfGlobalEval = {0};
+        PWEBAUTHN_HMAC_SECRET_SALT pPrfGlobalEval = NULL;
         if (requestedPrf) {
+          pPrfGlobalEval = &prfGlobalEval;
           rv = aArgs->GetPrfEvalFirst(prfEvalFirst);
           if (rv == NS_OK) {
             prfGlobalEval.cbFirst = prfEvalFirst.Length();
@@ -652,7 +654,7 @@ WinWebAuthnService::MakeCredential(uint64_t aTransactionId,
             NULL,                   // LinkedDevice
             0,                      // size of JsonExt
             NULL,                   // JsonExt
-            &prfGlobalEval,         // PRFGlobalEval
+            pPrfGlobalEval,         // PRFGlobalEval
             (DWORD)hints.Length(),  // Size of CredentialHints
             hints.Elements(),       // CredentialHints
         };