From d04ac3a54895a36998e3f1da27c2ce33f7a80c5a Mon Sep 17 00:00:00 2001
From: Dmitry Vyukov <dvyukov@google.com>
Date: Mon, 3 Apr 2023 07:45:09 +0200
Subject: sys/linux: add syz_pkey_set syscalls

The syscall sets PKRU register which is part of protection keys (pkey).
---
 sys/linux/test/pkey | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 sys/linux/test/pkey

(limited to 'sys/linux/test/pkey')

diff --git a/sys/linux/test/pkey b/sys/linux/test/pkey
new file mode 100644
index 000000000..063e878cc
--- /dev/null
+++ b/sys/linux/test/pkey
@@ -0,0 +1,10 @@
+# requires: arch=amd64
+
+r0 = pkey_alloc(0x0, 0x0)
+mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x3, 0x32, 0xffffffffffffffff, 0x0)
+pkey_mprotect(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x3, r0)
+syz_pkey_set(r0, 0x3)
+pipe(&(0x7f0000000000)={0x0, 0x0})  # EFAULT
+syz_pkey_set(r0, 0x0)
+pipe(&(0x7f0000000000)={0x0, 0x0})
+pkey_free(r0)
-- 
cgit mrf-deployment