Changeset 1b555f0f in mainline

Timestamp:

2018-11-26T21:03:20Z (5 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

f89204ee

Parents:

b501de7

git-author:

Jakub Jermar <jakub@…> (2018-11-26 21:01:21)

git-committer:

Jakub Jermar <jakub@…> (2018-11-26 21:03:20)

Message:

Do not answer calls with invalid capability handle

File:

• uspace/lib/hound/src/protocol.c (modified) (1 diff)

uspace/lib/hound/src/protocol.c

@@ -615 +615 @@
                         break;
                 default:
-                        async_answer_0(&call, ENOTSUP);
+                        /*
+                         * In case we called async_get_call() after we had
+                         * already received IPC_M_PHONE_HUNGUP deeper in the
+                         * protocol handling, the capability handle will be
+                         * invalid, so act carefully here.
+                         */
+                        if (call.cap_handle != CAP_NIL)
+                                async_answer_0(&call, ENOTSUP);
                         return;
                 }