This is a note to let you know that I've just added the patch titled fuse: reject internal errno to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: fuse-reject-internal-errno.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 49221cf86d18bb66fe95d3338cb33bd4b9880ca5 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi <mszeredi@xxxxxxxxxx> Date: Tue, 22 Jun 2021 09:15:35 +0200 Subject: fuse: reject internal errno From: Miklos Szeredi <mszeredi@xxxxxxxxxx> commit 49221cf86d18bb66fe95d3338cb33bd4b9880ca5 upstream. Don't allow userspace to report errors that could be kernel-internal. Reported-by: Anatoly Trosinenko <anatoly.trosinenko@xxxxxxxxx> Fixes: 334f485df85a ("[PATCH] FUSE - device functions") Cc: <stable@xxxxxxxxxxxxxxx> # v2.6.14 Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/fuse/dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -1889,7 +1889,7 @@ 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 err_finish; spin_lock(&fpq->lock); Patches currently in stable-queue which might be from mszeredi@xxxxxxxxxx are queue-4.14/fuse-check-connected-before-queueing-on-fpq-io.patch queue-4.14/fuse-reject-internal-errno.patch