From 568fc09277bbd2e4bbf3b2ebebacf78c4f67cd28 Mon Sep 17 00:00:00 2001
From: 4lDO2 <4lDO2@protonmail.com>
Date: Wed, 26 Jun 2024 22:10:02 +0200
Subject: [PATCH] Reset sighandler in fexec before switching addrsp.
---
redox-rt/src/proc.rs | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/redox-rt/src/proc.rs b/redox-rt/src/proc.rs
index e4564bb7..a89354f2 100644
--- a/redox-rt/src/proc.rs
+++ b/redox-rt/src/proc.rs
@@ -421,6 +421,15 @@ where
push(argc)?;
+ if let Ok(sighandler_fd) = syscall::dup(*open_via_dup, b"sighandler").map(FdGuard::new) {
+ let _ = syscall::write(*sighandler_fd, &SetSighandlerData {
+ user_handler: 0,
+ excp_handler: 0,
+ thread_control_addr: 0,
+ proc_control_addr: 0,
+ });
+ }
+
unsafe {
deactivate_tcb(*open_via_dup)?;
}
--
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