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authorGerd Hoffmann <kraxel@redhat.com>2014-03-06 13:54:28 +0100
committerGerd Hoffmann <kraxel@redhat.com>2014-03-10 12:35:04 +0100
commit38ee14f4f33f8836fc0e209ca59c6ae8c6edf380 (patch)
tree837dd4710f2cfd7d42319883d43fa8d080e1bf1b /linux-user/signal.c
parente3c1adf16e38714ebd761dd02517dd07760ba6d2 (diff)
downloadfocaccia-qemu-38ee14f4f33f8836fc0e209ca59c6ae8c6edf380.tar.gz
focaccia-qemu-38ee14f4f33f8836fc0e209ca59c6ae8c6edf380.zip
vnc: fix use-after-free in vnc_update_client_sync
Spotted by Coverity:

876     static int vnc_update_client_sync(VncState *vs, int has_dirty)
877     {

(1) Event freed_arg:    "vnc_update_client(VncState *, int)" frees "vs".  [details]
Also see events:        [deref_arg]

878         int ret = vnc_update_client(vs, has_dirty);

(2) Event deref_arg:    Calling "vnc_jobs_join(VncState *)" dereferences freed pointer "vs". [details]
Also see events:        [freed_arg]

879         vnc_jobs_join(vs);
880         return ret;
881     }

Remove vnc_update_client_sync wrapper, replace it with an additional
argument to vnc_update_client, so we can so the sync properly in
vnc_update_client (i.e. skip it in case of a client disconnect).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Diffstat (limited to 'linux-user/signal.c')
0 files changed, 0 insertions, 0 deletions