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authorLinus Torvalds <torvalds@linux-foundation.org>2013-09-30 08:35:10 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-10-22 09:02:25 +0100
commit5187f535beeb3731677c6f6d05402f9adec6e034 (patch)
tree596071de1c33e391d0e17d86136f0c85ce386d82
parentc2f271001295e9d4b1cca3a01502795e4f0d1639 (diff)
vfs: allow O_PATH file descriptors for fstatfs()
commit 9d05746e7b16d8565dddbe3200faa1e669d23bbf upstream. Olga reported that file descriptors opened with O_PATH do not work with fstatfs(), found during further development of ksh93's thread support. There is no reason to not allow O_PATH file descriptors here (fstatfs is very much a path operation), so use "fdget_raw()". See commit 55815f70147d ("vfs: make O_PATH file descriptors usable for 'fstat()'") for a very similar issue reported for fstat() by the same team. Reported-and-tested-by: ольга крыжановская <olga.kryzhanovska@gmail.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--fs/statfs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/statfs.c b/fs/statfs.c
index 43e6b6fe4e8..d1812b2840e 100644
--- a/fs/statfs.c
+++ b/fs/statfs.c
@@ -87,7 +87,7 @@ int user_statfs(const char __user *pathname, struct kstatfs *st)
int fd_statfs(int fd, struct kstatfs *st)
{
- struct file *file = fget(fd);
+ struct file *file = fget_raw(fd);
int error = -EBADF;
if (file) {
error = vfs_statfs(&file->f_path, st);