Brendan Shanks : winedbg: Ensure thread->name is null-terminated.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 3c2c4437969a27f5c0755c4a053702d38abd8d5c
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=3c2c4437969a27f5c0755c4a0...

Author: Brendan Shanks <bshanks(a)codeweavers.com>
Date:   Thu Feb 24 10:34:03 2022 -0800

winedbg: Ensure thread->name is null-terminated.

Signed-off-by: Brendan Shanks <bshanks(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 programs/winedbg/tgt_active.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/programs/winedbg/tgt_active.c b/programs/winedbg/tgt_active.c
index 50f48e8d1b8..2caa62206d6 100644
--- a/programs/winedbg/tgt_active.c
+++ b/programs/winedbg/tgt_active.c
@@ -257,9 +257,12 @@ static DWORD dbg_handle_exception(const EXCEPTION_RECORD* rec, BOOL first_chance
             dbg_printf("Thread ID=%04lx not in our list of threads -> can't rename\n", pThreadName->dwThreadID);
             return DBG_CONTINUE;
         }
-        if (dbg_read_memory(pThreadName->szName, pThread->name, 9))
-            dbg_printf("Thread ID=%04lx renamed using MS VC6 extension (name==\"%.9s\")\n",
+        if (dbg_read_memory(pThreadName->szName, pThread->name, sizeof(pThread->name)))
+        {
+            pThread->name[sizeof(pThread->name) - 1] = '\0';
+            dbg_printf("Thread ID=%04lx renamed using MSVC extension (name==\"%s\")\n",
                        pThread->tid, pThread->name);
+        }
         return DBG_CONTINUE;
     case EXCEPTION_INVALID_HANDLE:
         return DBG_CONTINUE;