qemu-e2k/hw/9pfs
Li Qiang d63fb193e7 9pfs: fix file descriptor leak
The v9fs_create() and v9fs_lcreate() functions are used to create a file
on the backend and to associate it to a fid. The fid shouldn't be already
in-use, otherwise both functions may silently leak a file descriptor or
allocated memory. The current code doesn't check that.

This patch ensures that the fid isn't already associated to anything
before using it.

Signed-off-by: Li Qiang <liqiang6-s@360.cn>
(reworded the changelog, Greg Kurz)
Signed-off-by: Greg Kurz <groug@kaod.org>
2017-03-27 21:13:19 +02:00
..
9p-handle.c 9pfs: add cleanup operation for handle backend driver 2016-11-23 13:53:34 +01:00
9p-local.c 9pfs: fix vulnerability in openat_dir() and local_unlinkat_common() 2017-03-06 17:34:01 +01:00
9p-local.h 9pfs: local: open/opendir: don't follow symlinks 2017-02-28 11:21:15 +01:00
9p-posix-acl.c 9pfs: local: lremovexattr: don't follow symlinks 2017-02-28 11:21:15 +01:00
9p-proxy.c 9pfs: proxy: assert if unmarshal fails 2017-03-21 09:12:47 +01:00
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 9pfs: fsdev: drop useless extern annotation for functions 2016-10-17 14:13:58 +02:00
9p-util.c 9pfs: local: lgetxattr: don't follow symlinks 2017-02-28 11:21:15 +01:00
9p-util.h 9pfs: fix vulnerability in openat_dir() and local_unlinkat_common() 2017-03-06 17:34:01 +01:00
9p-xattr-user.c 9pfs: local: lremovexattr: don't follow symlinks 2017-02-28 11:21:15 +01:00
9p-xattr.c 9pfs: local: lremovexattr: don't follow symlinks 2017-02-28 11:21:15 +01:00
9p-xattr.h 9pfs: local: lremovexattr: don't follow symlinks 2017-02-28 11:21:15 +01:00
9p.c 9pfs: fix file descriptor leak 2017-03-27 21:13:19 +02:00
9p.h 9pfs: fix P9_NOTAG and P9_NOFID macros 2017-01-03 17:28:44 +01:00
codir.c 9pfs: use coroutine_fn annotation in hw/9pfs/co*.[ch] 2016-10-17 14:13:58 +02:00
cofile.c fsdev: add IO throttle support to fsdev devices 2017-02-28 10:31:46 +01:00
cofs.c 9pfs: use coroutine_fn annotation in hw/9pfs/co*.[ch] 2016-10-17 14:13:58 +02:00
coth.c coroutine: move entry argument to qemu_coroutine_create 2016-07-13 13:26:02 +02:00
coth.h 9pfs: use coroutine_fn annotation in hw/9pfs/co*.[ch] 2016-10-17 14:13:58 +02:00
coxattr.c 9pfs: use coroutine_fn annotation in hw/9pfs/co*.[ch] 2016-10-17 14:13:58 +02:00
Makefile.objs 9pfs: introduce relative_openat_nofollow() helper 2017-02-28 11:21:15 +01:00
trace-events 9pfs: limit xattr size in xattrcreate 2016-11-01 12:03:02 +01:00
virtio-9p-device.c 9pfs: introduce init_out/in_iov_from_pdu 2017-01-03 17:28:44 +01:00
virtio-9p.h 9pfs: introduce transport specific callbacks 2017-01-03 17:28:44 +01:00