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Commit cfb2abd2 authored by Miklos Szeredi's avatar Miklos Szeredi Committed by Greg Kroah-Hartman
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fuse: reject internal errno 



commit 49221cf86d18bb66fe95d3338cb33bd4b9880ca5 upstream.

Don't allow userspace to report errors that could be kernel-internal.

Reported-by: default avatarAnatoly Trosinenko <anatoly.trosinenko@gmail.com>
Fixes: 334f485d ("[PATCH] FUSE - device functions")
Cc: <stable@vger.kernel.org> # v2.6.14
Signed-off-by: default avatarMiklos Szeredi <mszeredi@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c7da1d1e

fs/fuse/dev.c

+1 −1
Original line number Diff line number Diff line
@@ -1883,7 +1883,7 @@ 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 err_finish;



	spin_lock(&fpq->lock);