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9pfs: deprecate 'proxy' backend

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As recent CVE-2023-2861 (fixed by f6b0de53fb) once again showed, the 9p
'proxy' fs driver is in bad shape. Using the 'proxy' backend was already
discouraged for safety reasons before and we recommended to use the
'local' backend (preferably in conjunction with its 'mapped' security
model) instead, but now it is time to officially deprecate the 'proxy'
backend.

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <E1qDkmw-0007M1-8f@lizzy.crudebyte.com>
This commit is contained in:
Christian Schoenebeck 2023-06-26 13:49:06 +02:00
parent 0618e72d64
commit 71d72ececa
9 changed files with 67 additions and 3 deletions
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5
hw/9pfs/9p-proxy.h
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@ -10,6 +10,11 @@
* the COPYING file in the top-level directory.
*/
/*
* NOTE: The 9p 'proxy' backend is deprecated (since QEMU 8.1) and will be
* removed in a future version of QEMU!
*/
#ifndef QEMU_9P_PROXY_H
#define QEMU_9P_PROXY_H