Files
xen/tools/xenstore
Juergen Gross 3dafa5a774 tools/xenstore: limit outstanding requests
Add another quota for limiting the number of outstanding requests of a
guest. As the way to specify quotas on the command line is becoming
rather nasty, switch to a new scheme using [--quota|-Q] <what>=<val>
allowing to add more quotas in future easily.

Set the default value to 20 (basically a random value not seeming to
be too high or too low).

A request is said to be outstanding if any message generated by this
request (the direct response plus potential watch events) is not yet
completely stored into a ring buffer. The initial watch event sent as
a result of registering a watch is an exception.

Note that across a live update the relation to buffered watch events
for other domains is lost.

Use talloc_zero() for allocating the domain structure in order to have
all per-domain quota zeroed initially.

This is part of XSA-326 / CVE-2022-42312.

Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Julien Grall <jgrall@amazon.com>
(cherry picked from commit 36de433a27)
2022-11-01 15:20:41 +00:00
..
2008-06-10 13:49:54 +01:00
2017-03-03 19:04:46 +00:00
2017-04-03 14:04:41 +01:00
2017-04-03 14:04:41 +01:00

The following files are imported from the Samba project.  We use the versions
from Samba 3, the current stable branch.

talloc.c: samba-trunk/source/lib/talloc.c     r14291 2006-03-13 04:27:47 +0000
talloc.h: samba-trunk/source/include/talloc.h r11986 2005-12-01 00:43:36 +0000