Xext/shm: Refuse to work for remote clients
Avoid access to System V shared memory segment on the X server side for clients forwarded via SSH. Also prevent them from hanging while waiting for the reply from the ShmCreateSegment request. v2: Allow ShmQueryVersion request even for remote clients Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=11080 Signed-off-by: Alexander Volkov <a.volkov@rusbitech.ru> Reviewed-by: Adam Jackson <ajax@redhat.com>
This commit is contained in:
parent
5c95be38e5
commit
ec7e2b54c5
18
Xext/shm.c
18
Xext/shm.c
|
@ -1302,9 +1302,14 @@ static int
|
|||
ProcShmDispatch(ClientPtr client)
|
||||
{
|
||||
REQUEST(xReq);
|
||||
switch (stuff->data) {
|
||||
case X_ShmQueryVersion:
|
||||
|
||||
if (stuff->data == X_ShmQueryVersion)
|
||||
return ProcShmQueryVersion(client);
|
||||
|
||||
if (!client->local)
|
||||
return BadRequest;
|
||||
|
||||
switch (stuff->data) {
|
||||
case X_ShmAttach:
|
||||
return ProcShmAttach(client);
|
||||
case X_ShmDetach:
|
||||
|
@ -1461,9 +1466,14 @@ static int _X_COLD
|
|||
SProcShmDispatch(ClientPtr client)
|
||||
{
|
||||
REQUEST(xReq);
|
||||
switch (stuff->data) {
|
||||
case X_ShmQueryVersion:
|
||||
|
||||
if (stuff->data == X_ShmQueryVersion)
|
||||
return SProcShmQueryVersion(client);
|
||||
|
||||
if (!client->local)
|
||||
return BadRequest;
|
||||
|
||||
switch (stuff->data) {
|
||||
case X_ShmAttach:
|
||||
return SProcShmAttach(client);
|
||||
case X_ShmDetach:
|
||||
|
|
Loading…
Reference in New Issue
Block a user