From 50a9aef1799dbb8f2070903fc0eb6d7c512d7170 Mon Sep 17 00:00:00 2001
From: ptitSeb <sebastien.chev@gmail.com>
Date: Sun, 24 Apr 2022 15:14:06 +0200
Subject: Fixed a potential issue with stack overwritten on sigaction call

---
 src/libtools/signals.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/libtools')

diff --git a/src/libtools/signals.c b/src/libtools/signals.c
index 697296b5..92f973b4 100755
--- a/src/libtools/signals.c
+++ b/src/libtools/signals.c
@@ -1233,7 +1233,7 @@ int EXPORT my_syscall_rt_sigaction(x64emu_t* emu, int signum, const x64_sigactio
             ret = sigaction(signum, act?&newact:NULL, oldact?&old:NULL);
         if(oldact && ret==0) {
             oldact->sa_flags = old.sa_flags;
-            oldact->sa_mask = old.sa_mask;
+            memcpy(&oldact->sa_mask, &old.sa_mask, (sigsetsize>8)?8:sigsetsize);
             if(old.sa_flags & 0x04)
                 oldact->_u._sa_sigaction = old.sa_sigaction; //TODO should wrap...
             else
-- 
cgit 1.4.1