diff options
| -rw-r--r-- | arch/x86/kernel/shstk.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/shstk.c b/arch/x86/kernel/shstk.c index f02e8ea4f1b5..a8705f7d966c 100644 --- a/arch/x86/kernel/shstk.c +++ b/arch/x86/kernel/shstk.c @@ -252,6 +252,9 @@ static int shstk_pop_sigframe(unsigned long *ssp) unsigned long token_addr; int err; + if (!IS_ALIGNED(*ssp, 8)) + return -EINVAL; + err = get_shstk_data(&token_addr, (unsigned long __user *)*ssp); if (unlikely(err)) return err; |