It's always been invalid to call waitid() with a NULL pointer. It was an oversight that it was allowed (and acts like a wait4() call instead). Signed-off-by: Roland McGrath <roland@xxxxxxxxxx> --- kernel/exit.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/kernel/exit.c b/kernel/exit.c index c7740fa..fa25790 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -1760,6 +1760,8 @@ asmlinkage long sys_waitid(int which, pid_t upid, enum pid_type type; long ret; + if (unlikely(!infop)) + return -EFAULT; if (options & ~(WNOHANG|WNOWAIT|WEXITED|WSTOPPED|WCONTINUED)) return -EINVAL; if (!(options & (WEXITED|WSTOPPED|WCONTINUED))) -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
