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authorDavid Howells <dhowells@redhat.com>2017-05-04 23:30:16 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2017-05-04 19:52:03 -0400
commitdeccf497d804a4c5fca2dbfad2f104675a6f9102 (patch)
treea6944cb2b90366ef2f06c0460cefe4685dbb8e4d /include/linux/fs.h
parent563f40019d16e5299e9edd3eac37846760637076 (diff)
downloadop-kernel-dev-deccf497d804a4c5fca2dbfad2f104675a6f9102.zip
op-kernel-dev-deccf497d804a4c5fca2dbfad2f104675a6f9102.tar.gz
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.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index fc1b4fa..866c955 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)
{
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