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fs/notify/fanotify/fanotify_user.c: fix FAN_MARK_FLUSH flag checking

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If fanotify_mark is called with illegal value of arguments flags and
marks it usually returns EINVAL.

When fanotify_mark is called with FAN_MARK_FLUSH the argument flags is
not checked for irrelevant flags like FAN_MARK_IGNORED_MASK.

The patch removes this inconsistency.

If an irrelevant flag is set error EINVAL is returned.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Heinrich Schuchardt 2014-06-04 16:05:43 -07:00 committed by Linus Torvalds
parent efa8f7e5d7
commit cc299a98eb
1 changed files with 3 additions and 0 deletions
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3
fs/notify/fanotify/fanotify_user.c
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@ -776,7 +776,10 @@ SYSCALL_DEFINE5(fanotify_mark, int, fanotify_fd, unsigned int, flags,
case FAN_MARK_REMOVE:
if (!mask)
return -EINVAL;
break;
case FAN_MARK_FLUSH:
if (flags & ~(FAN_MARK_MOUNT | FAN_MARK_FLUSH))
return -EINVAL;
break;
default:
return -EINVAL;