diff options
Diffstat (limited to 'arch/s390/kernel/syscall.c')
| -rw-r--r-- | arch/s390/kernel/syscall.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/s390/kernel/syscall.c b/arch/s390/kernel/syscall.c index 795b6cca74c9..d103c853e120 100644 --- a/arch/s390/kernel/syscall.c +++ b/arch/s390/kernel/syscall.c @@ -13,6 +13,7 @@ */ #include <linux/cpufeature.h> +#include <linux/nospec.h> #include <linux/errno.h> #include <linux/sched.h> #include <linux/mm.h> @@ -131,8 +132,10 @@ void noinstr __do_syscall(struct pt_regs *regs, int per_trap) if (unlikely(test_and_clear_pt_regs_flag(regs, PIF_SYSCALL_RET_SET))) goto out; regs->gprs[2] = -ENOSYS; - if (likely(nr < NR_syscalls)) + if (likely(nr < NR_syscalls)) { + nr = array_index_nospec(nr, NR_syscalls); regs->gprs[2] = sys_call_table[nr](regs); + } out: syscall_exit_to_user_mode(regs); } |