Blame SOURCES/chrony-seccomp.patch
|
 |
777498 |
commit 8bb8f15a7d049ed26c69d95087065b381f76ec4d
|
|
|
777498 |
Author: Michael Hudson-Doyle <michael.hudson@canonical.com>
|
|
|
777498 |
Date: Wed Feb 9 09:06:13 2022 +0100
|
|
|
fd6d13 |
|
|
|
777498 |
sys_linux: allow rseq in seccomp filter
|
|
|
fd6d13 |
|
|
|
777498 |
Libc 2.35 will use rseq syscalls [1][2] by default and thereby
|
|
|
777498 |
break chrony in seccomp isolation.
|
|
|
777498 |
|
|
|
777498 |
[1]: https://www.efficios.com/blog/2019/02/08/linux-restartable-sequences/
|
|
|
777498 |
[2]: https://sourceware.org/pipermail/libc-alpha/2022-February/136040.html
|
|
|
777498 |
|
|
|
777498 |
Tested-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
|
|
|
777498 |
Reviewed-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
|
|
|
777498 |
Signed-off-by: Michael Hudson-Doyle <michael.hudson@canonical.com>
|
|
|
777498 |
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
|
|
|
fd6d13 |
|
|
|
fd6d13 |
diff --git a/sys_linux.c b/sys_linux.c
|
|
|
777498 |
index 9cab2efa..cc3c9311 100644
|
|
|
fd6d13 |
--- a/sys_linux.c
|
|
|
fd6d13 |
+++ b/sys_linux.c
|
|
|
777498 |
@@ -497,6 +497,9 @@ SYS_Linux_EnableSystemCallFilter(int level, SYS_ProcessContext context)
|
|
|
777498 |
SCMP_SYS(getrlimit),
|
|
|
777498 |
SCMP_SYS(getuid),
|
|
|
777498 |
SCMP_SYS(getuid32),
|
|
|
777498 |
+#ifdef __NR_rseq
|
|
|
777498 |
+ SCMP_SYS(rseq),
|
|
|
fd6d13 |
+#endif
|
|
|
777498 |
SCMP_SYS(rt_sigaction),
|
|
|
777498 |
SCMP_SYS(rt_sigreturn),
|
|
|
777498 |
SCMP_SYS(rt_sigprocmask),
|