diff options
| author |   David Howells <dhowells@redhat.com> | 2017-05-04 23:30:16 +0100 |
|---|---|---|
| committer |   Al Viro <viro@zeniv.linux.org.uk> | 2017-05-04 19:52:03 -0400 |
| commit | deccf497d804a4c5fca2dbfad2f104675a6f9102 (patch) | |
| tree | a6944cb2b90366ef2f06c0460cefe4685dbb8e4d /include/linux/fs.h | |
| parent | fs: don't set *REFERENCED on single use objects (diff) | |
| download | linux-dev-deccf497d804a4c5fca2dbfad2f104675a6f9102.tar.xz linux-dev-deccf497d804a4c5fca2dbfad2f104675a6f9102.zip | |
Make stat/lstat/fstatat pass AT_NO_AUTOMOUNT to vfs_statx()
stat/lstat/fstatat need to pass AT_NO_AUTOMOUNT to vfs_statx() as the
pre-statx code didn't set LOOKUP_AUTOMOUNT, even though fstatat() accepted
the AT_NO_AUTOMOUNT flag.
Fixes: a528d35e8bfc ("statx: Add a system call to make enhanced file info available")
Reported-by: Ian Kent <raven@themaw.net>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Ian Kent <raven@themaw.net>
cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index fc1b4faa6272..866c955314db 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2920,17 +2920,19 @@ extern int vfs_statx_fd(unsigned int, struct kstat *, u32, unsigned int); static inline int vfs_stat(const char __user *filename, struct kstat *stat) { - return vfs_statx(AT_FDCWD, filename, 0, stat, STATX_BASIC_STATS); + return vfs_statx(AT_FDCWD, filename, AT_NO_AUTOMOUNT, + stat, STATX_BASIC_STATS); } static inline int vfs_lstat(const char __user *name, struct kstat *stat) { - return vfs_statx(AT_FDCWD, name, AT_SYMLINK_NOFOLLOW, + return vfs_statx(AT_FDCWD, name, AT_SYMLINK_NOFOLLOW | AT_NO_AUTOMOUNT, stat, STATX_BASIC_STATS); } static inline int vfs_fstatat(int dfd, const char __user *filename, struct kstat *stat, int flags) { - return vfs_statx(dfd, filename, flags, stat, STATX_BASIC_STATS); + return vfs_statx(dfd, filename, flags | AT_NO_AUTOMOUNT, + stat, STATX_BASIC_STATS); } static inline int vfs_fstat(int fd, struct kstat *stat) { |