|
 |
c687bc |
From 08dc2a4dc481916fae9597220ad0faf3f6ed70c1 Mon Sep 17 00:00:00 2001
|
|
|
c687bc |
From: Eduardo Otubo <otubo@redhat.com>
|
|
|
c687bc |
Date: Mon, 16 Nov 2020 15:15:38 -0500
|
|
|
c687bc |
Subject: [PATCH 1/5] seccomp: fix killing of whole process instead of thread
|
|
|
c687bc |
MIME-Version: 1.0
|
|
|
c687bc |
Content-Type: text/plain; charset=UTF-8
|
|
|
c687bc |
Content-Transfer-Encoding: 8bit
|
|
|
c687bc |
|
|
|
c687bc |
RH-Author: Eduardo Otubo <otubo@redhat.com>
|
|
|
c687bc |
Message-id: <20201116151538.22254-1-otubo@redhat.com>
|
|
|
c687bc |
Patchwork-id: 99654
|
|
|
c687bc |
O-Subject: [RHEL-8.3.0/RHEL-8.4.0 qemu-kvm PATCH] seccomp: fix killing of whole process instead of thread
|
|
|
c687bc |
Bugzilla: 1880546
|
|
|
c687bc |
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
|
|
|
c687bc |
RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
|
|
|
c687bc |
RH-Acked-by: Marc-André Lureau <marcandre.lureau@redhat.com>
|
|
|
c687bc |
|
|
|
c687bc |
BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1890885
|
|
|
c687bc |
BRANCH: rhel-8.3.0
|
|
|
c687bc |
UPSTREAM: Merged
|
|
|
c687bc |
BREW: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=1890885
|
|
|
c687bc |
|
|
|
c687bc |
BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1880546
|
|
|
c687bc |
BRANCH: rhel-8.4.0
|
|
|
c687bc |
UPSTREAM: Merged
|
|
|
c687bc |
BREW: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=33125023
|
|
|
c687bc |
|
|
|
c687bc |
From: Daniel P. Berrangé <berrange@redhat.com>
|
|
|
c687bc |
|
|
|
c687bc |
Back in 2018 we introduced support for killing the whole QEMU process
|
|
|
c687bc |
instead of just one thread, when a seccomp rule is violated:
|
|
|
c687bc |
|
|
|
c687bc |
commit bda08a5764d470f101fa38635d30b41179a313e1
|
|
|
c687bc |
Author: Marc-André Lureau <marcandre.lureau@redhat.com>
|
|
|
c687bc |
Date: Wed Aug 22 19:02:48 2018 +0200
|
|
|
c687bc |
|
|
|
c687bc |
seccomp: prefer SCMP_ACT_KILL_PROCESS if available
|
|
|
c687bc |
|
|
|
c687bc |
Fast forward a year and we introduced a patch to avoid killing the
|
|
|
c687bc |
process for resource control syscalls tickled by Mesa.
|
|
|
c687bc |
|
|
|
c687bc |
commit 9a1565a03b79d80b236bc7cc2dbce52a2ef3a1b8
|
|
|
c687bc |
Author: Daniel P. Berrangé <berrange@redhat.com>
|
|
|
c687bc |
Date: Wed Mar 13 09:49:03 2019 +0000
|
|
|
c687bc |
|
|
|
c687bc |
seccomp: don't kill process for resource control syscalls
|
|
|
c687bc |
|
|
|
c687bc |
Unfortunately a logic bug effectively reverted the first commit
|
|
|
c687bc |
mentioned so that we go back to only killing the thread, not the whole
|
|
|
c687bc |
process.
|
|
|
c687bc |
|
|
|
c687bc |
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
|
|
|
c687bc |
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
|
|
|
c687bc |
Acked-by: Eduardo Otubo <otubo@redhat.com>
|
|
|
c687bc |
(cherry picked from commit e474e3aacf4276eb0781d11c45e2fab996f9dc56)
|
|
|
c687bc |
Signed-off-by: Eduardo Otubo <otubo@redhat.com>
|
|
|
c687bc |
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
|
|
|
c687bc |
---
|
|
|
c687bc |
qemu-seccomp.c | 3 ++-
|
|
|
c687bc |
1 file changed, 2 insertions(+), 1 deletion(-)
|
|
|
c687bc |
|
|
|
c687bc |
diff --git a/qemu-seccomp.c b/qemu-seccomp.c
|
|
|
c687bc |
index e0a1829b3dd..8325ecb766e 100644
|
|
|
c687bc |
--- a/qemu-seccomp.c
|
|
|
c687bc |
+++ b/qemu-seccomp.c
|
|
|
c687bc |
@@ -136,8 +136,9 @@ static uint32_t qemu_seccomp_get_action(int set)
|
|
|
c687bc |
|
|
|
c687bc |
if (qemu_seccomp(SECCOMP_GET_ACTION_AVAIL, 0, &action) == 0) {
|
|
|
c687bc |
kill_process = 1;
|
|
|
c687bc |
+ } else {
|
|
|
c687bc |
+ kill_process = 0;
|
|
|
c687bc |
}
|
|
|
c687bc |
- kill_process = 0;
|
|
|
c687bc |
}
|
|
|
c687bc |
if (kill_process == 1) {
|
|
|
c687bc |
return SCMP_ACT_KILL_PROCESS;
|
|
|
c687bc |
--
|
|
|
c687bc |
2.27.0
|
|
|
c687bc |
|