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authorLinus Torvalds <torvalds@linux-foundation.org>2017-05-09 09:12:53 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-09 09:12:53 -0700
commit11fbf53d66ec302fe50b06bd7cb4863dbb98775a (patch)
tree1e7f8fdb574313b9c1403d2f89386a461c9b2eaa /fs/open.c
parent339fbf6796f8e74544091adbf511286768eaf93e (diff)
parent6b4657667ba06cd2e07206c65e630acdf248bfd1 (diff)
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc vfs updates from Al Viro: "Assorted bits and pieces from various people. No common topic in this pile, sorry" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs/affs: add rename exchange fs/affs: add rename2 to prepare multiple methods Make stat/lstat/fstatat pass AT_NO_AUTOMOUNT to vfs_statx() fs: don't set *REFERENCED on single use objects fs: compat: Remove warning from COMPATIBLE_IOCTL remove pointless extern of atime_need_update_rcu() fs: completely ignore unknown open flags fs: add a VALID_OPEN_FLAGS fs: remove _submit_bh() fs: constify tree_descr arrays passed to simple_fill_super() fs: drop duplicate header percpu-rwsem.h fs/affs: bugfix: Write files greater than page size on OFS fs/affs: bugfix: enable writes on OFS disks fs/affs: remove node generation check fs/affs: import amigaffs.h fs/affs: bugfix: make symbolic links work again
Diffstat (limited to 'fs/open.c')
-rw-r--r--fs/open.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/open.c b/fs/open.c
index 4d23f729dcc6..373787afd638 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -900,6 +900,12 @@ static inline int build_open_flags(int flags, umode_t mode, struct open_flags *o
int lookup_flags = 0;
int acc_mode = ACC_MODE(flags);
+ /*
+ * Clear out all open flags we don't know about so that we don't report
+ * them in fcntl(F_GETFD) or similar interfaces.
+ */
+ flags &= VALID_OPEN_FLAGS;
+
if (flags & (O_CREAT | __O_TMPFILE))
op->mode = (mode & S_IALLUGO) | S_IFREG;
else