Fix index out of bound when `key` of `semget` too large

2024-09-04 15:34:56 +08:00 · 2024-09-04 15:34:56 +08:00 · 42f3411337
parent c68302f700
commit 42f3411337
1 changed files with 3 additions and 0 deletions
--- a/kernel/src/ipc/semaphore/system_v/sem_set.rs
+++ b/kernel/src/ipc/semaphore/system_v/sem_set.rs
@ -235,6 +235,9 @@ pub fn create_sem_set_with_id(
 ) -> Result<()> {
    debug_assert!(nsems <= SEMMSL);
    debug_assert!(id > 0);
+    if id as usize > SEMMNI {
+        return_errno_with_message!(Errno::ENOENT, "id larger than SEMMNI");
+    }

    ID_ALLOCATOR
        .get()