From 7d6a7f513b0053be4e1629de492cbde9215c442c Mon Sep 17 00:00:00 2001
From: Isaac Freund <mail@isaacfreund.com>
Date: Thu, 11 Aug 2022 11:04:26 +0200
Subject: [PATCH] std: Don't pass undefined memory to the kernel in os.abort()

---
 lib/std/os.zig | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lib/std/os.zig b/lib/std/os.zig
index 1192c72629..b068a11229 100644
--- a/lib/std/os.zig
+++ b/lib/std/os.zig
@@ -476,9 +476,8 @@ pub fn abort() noreturn {
         // Install default handler so that the tkill below will terminate.
         const sigact = Sigaction{
             .handler = .{ .sigaction = SIG.DFL },
-            .mask = undefined,
-            .flags = undefined,
-            .restorer = undefined,
+            .mask = empty_sigset,
+            .flags = 0,
         };
         sigaction(SIG.ABRT, &sigact, null) catch |err| switch (err) {
             error.OperationNotSupported => unreachable,