From cbe85a187829524c8852108843a488b94630cb33 Mon Sep 17 00:00:00 2001
From: Marsman1996 <lqliuyuwei@outlook.com>
Date: Mon, 23 Sep 2024 10:53:07 +0800
Subject: [PATCH] Add check for negative `timeval_t.sec` in `do_futimesat`

---
 kernel/src/syscall/utimens.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/kernel/src/syscall/utimens.rs b/kernel/src/syscall/utimens.rs
index 5540a4d73..07b2789eb 100644
--- a/kernel/src/syscall/utimens.rs
+++ b/kernel/src/syscall/utimens.rs
@@ -189,7 +189,13 @@ fn do_futimesat(
 ) -> Result<SyscallReturn> {
     let times = if timeval_ptr != 0 {
         let (autime, mutime) = read_time_from_user::<timeval_t>(timeval_ptr, ctx)?;
-        if autime.usec >= 1000000 || autime.usec < 0 || mutime.usec >= 1000000 || mutime.usec < 0 {
+        if autime.usec >= 1000000
+            || autime.usec < 0
+            || autime.sec < 0
+            || mutime.usec >= 1000000
+            || mutime.usec < 0
+            || mutime.sec < 0
+        {
             return_errno_with_message!(Errno::EINVAL, "Invalid time");
         }
         let (autime, mutime) = (timespec_t::from(autime), timespec_t::from(mutime));