diff options
| author | Miklos Szeredi <mszeredi@redhat.com> | 2021-06-22 09:15:35 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-14 16:53:09 +0200 |
| commit | a883c38f1cfa0cb2746eead803990dcd082a04b3 (patch) | |
| tree | 9e9df6d53cd172ce6c893748d8f42e5da2e77e16 /fs/fuse/dev.c | |
| parent | 059dd690bfe02a785db760be51d24fad1028b40a (diff) | |
fuse: reject internal errno
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>
Diffstat (limited to 'fs/fuse/dev.c')
| -rw-r--r-- | fs/fuse/dev.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index d6f8075f3950..16aa55b73ccf 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -1869,7 +1869,7 @@ static ssize_t fuse_dev_do_write(struct fuse_dev *fud, } err = -EINVAL; - if (oh.error <= -1000 || oh.error > 0) + if (oh.error <= -512 || oh.error > 0) goto copy_finish; spin_lock(&fpq->lock); |