Greg Kurz d06c61f310 9pfs: fix potential segfault during walk ...

If the call to fid_to_qid() returns an error, we will call v9fs_path_free()
on uninitialized paths.

It is a regression introduced by the following commit:

56f101ecce 9pfs: handle walk of ".." in the root directory

Let's fix this by initializing dpath and path before calling fid_to_qid().

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[groug: updated the changelog to indicate this is regression and to provide
        the offending commit SHA1]
Signed-off-by: Greg Kurz <groug@kaod.org>

(cherry picked from commit 13fd08e631)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>

2016-11-02 16:41:34 -05:00

..

9p-handle.c

9p: switch back to readdir()

2016-06-06 11:52:34 +02:00

9p-local.c

9p: switch back to readdir()

2016-06-06 11:52:34 +02:00

9p-posix-acl.c

9pfs: Clean up includes

2016-01-29 15:07:23 +00:00

9p-proxy.c

9p: switch back to readdir()

2016-06-06 11:52:34 +02:00

9p-proxy.h

Clean up ill-advised or unusual header guards

2016-07-12 16:20:46 +02:00

9p-synth.c

9p: synth: drop v9fs_ prefix

2016-07-01 14:38:54 +02:00

9p-synth.h

Clean up header guards that don't match their file name

2016-07-12 16:19:16 +02:00

9p-xattr-user.c

9pfs: Clean up includes

2016-01-29 15:07:23 +00:00

9p-xattr.c

9pfs: Clean up includes

2016-01-29 15:07:23 +00:00

9p-xattr.h

Clean up ill-advised or unusual header guards

2016-07-12 16:20:46 +02:00

9p.c

9pfs: fix potential segfault during walk

2016-11-02 16:41:34 -05:00

9p.h

9pfs: handle walk of ".." in the root directory

2016-08-30 19:23:00 +01:00

codir.c

9p: switch back to readdir()

2016-06-06 11:52:34 +02:00

cofile.c

9p/fsdev: remove obsolete references to virtio

2016-06-06 11:52:34 +02:00

cofs.c

9p/fsdev: remove obsolete references to virtio

2016-06-06 11:52:34 +02:00

coth.c

coroutine: move entry argument to qemu_coroutine_create

2016-07-13 13:26:02 +02:00

coth.h

Clean up ill-advised or unusual header guards

2016-07-12 16:20:46 +02:00

coxattr.c

9p/fsdev: remove obsolete references to virtio

2016-06-06 11:52:34 +02:00

Makefile.objs

9pfs: rename virtio-9p.c to 9p.c

2016-01-08 15:32:13 +05:30

trace-events

trace-events: fix first line comment in trace-events

2016-08-12 10:36:01 +01:00

virtio-9p-device.c

9pfs: Wrap in vmstate

2016-07-21 20:44:20 +03:00

virtio-9p.h

Clean up ill-advised or unusual header guards

2016-07-12 16:20:46 +02:00