diff options
| author | Mark Brown <broonie@kernel.org> | 2019-04-19 12:37:38 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-04-19 12:37:38 +0100 |
| commit | a48dff1bc041d1d267e7ceff1bb4cf4185c3729b (patch) | |
| tree | 0b3956a2dc9d6baa31fa0c8eab6e4845774c4214 /arch/x86/include/asm/xen/hypercall.h | |
| parent | 642f61354ac697e2127c097101c33b70c4848c45 (diff) | |
| parent | 8fd8f8d65bf56aaa80c7ae5eaf26afd586139683 (diff) | |
Merge branch 'linux-linaro-lsk-v4.14' into linux-linaro-lsk-v4.14-rtlinux-linaro-lsk-v4.14-rt
Diffstat (limited to 'arch/x86/include/asm/xen/hypercall.h')
| -rw-r--r-- | arch/x86/include/asm/xen/hypercall.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h index bfd882617613..e7e625448008 100644 --- a/arch/x86/include/asm/xen/hypercall.h +++ b/arch/x86/include/asm/xen/hypercall.h @@ -217,6 +217,9 @@ privcmd_call(unsigned call, __HYPERCALL_DECLS; __HYPERCALL_5ARG(a1, a2, a3, a4, a5); + if (call >= PAGE_SIZE / sizeof(hypercall_page[0])) + return -EINVAL; + stac(); asm volatile(CALL_NOSPEC : __HYPERCALL_5PARAM |