Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [ 04/11] vfs: allow O_PATH file descriptors for fstatfs() | Date | Fri, 18 Oct 2013 12:53:33 -0700 |
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3.4-stable review patch. If anyone has any objections, please let me know.
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From: Linus Torvalds <torvalds@linux-foundation.org>
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>
--- fs/statfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/statfs.c +++ b/fs/statfs.c @@ -87,7 +87,7 @@ int user_statfs(const char __user *pathn 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);
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