From f6fdd7d9c273bb2a20ab467cb57067494f932fa3 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 20 Aug 2005 18:51:29 -0700 Subject: [PATCH] Don't allow normal users to set idle IO priority It has all the normal priority inversion problems. Signed-off-by: Linus Torvalds --- fs/ioprio.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/ioprio.c b/fs/ioprio.c index 97e1f088ba00..d1c1f2b2c9da 100644 --- a/fs/ioprio.c +++ b/fs/ioprio.c @@ -62,6 +62,8 @@ asmlinkage long sys_ioprio_set(int which, int who, int ioprio) break; case IOPRIO_CLASS_IDLE: + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; break; default: return -EINVAL;