This is a note to let you know that I've just added the patch titled
fuse: reject internal errno
to the 4.9-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-4.9 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
@@ -1883,7 +1883,7 @@ 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-4.9/fuse-check-connected-before-queueing-on-fpq-io.patch
queue-4.9/fuse-reject-internal-errno.patch
