From: Miklos Szeredi mszeredi@redhat.com
commit 49221cf86d18bb66fe95d3338cb33bd4b9880ca5 upstream.
Don't allow userspace to report errors that could be kernel-internal.
Reported-by: Anatoly Trosinenko anatoly.trosinenko@gmail.com Fixes: 334f485df85a ("[PATCH] FUSE - device functions") Cc: stable@vger.kernel.org # v2.6.14 Signed-off-by: Miklos Szeredi mszeredi@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- fs/fuse/dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -1869,7 +1869,7 @@ static ssize_t fuse_dev_do_write(struct }
err = -EINVAL; - if (oh.error <= -1000 || oh.error > 0) + if (oh.error <= -512 || oh.error > 0) goto copy_finish;
spin_lock(&fpq->lock);