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From: Greg Kurz <groug@kaod.org>
To: qemu-devel@nongnu.org
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>,
	Stefan Hajnoczi <stefanha@redhat.com>, Greg Kurz <groug@kaod.org>
Subject: [PATCH] virtiofsd: Add restart_syscall to the seccomp whitelist
Date: Mon,  1 Feb 2021 20:33:05 +0100	[thread overview]
Message-ID: <20210201193305.136390-1-groug@kaod.org> (raw)

This is how linux restarts some system calls after SIGSTOP/SIGCONT.
This is needed to avoid virtiofsd termination when resuming execution
under GDB for example.

Signed-off-by: Greg Kurz <groug@kaod.org>
---

This has passed Travis and gitlab CI without errors.

 tools/virtiofsd/passthrough_seccomp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/virtiofsd/passthrough_seccomp.c b/tools/virtiofsd/passthrough_seccomp.c
index a60d7da4b4e2..da03e97d35e4 100644
--- a/tools/virtiofsd/passthrough_seccomp.c
+++ b/tools/virtiofsd/passthrough_seccomp.c
@@ -88,6 +88,7 @@ static const int syscall_whitelist[] = {
     SCMP_SYS(renameat),
     SCMP_SYS(renameat2),
     SCMP_SYS(removexattr),
+    SCMP_SYS(restart_syscall),
     SCMP_SYS(rt_sigaction),
     SCMP_SYS(rt_sigprocmask),
     SCMP_SYS(rt_sigreturn),
-- 
2.26.2



             reply	other threads:[~2021-02-01 19:34 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-01 19:33 Greg Kurz [this message]
2021-02-01 19:52 ` [PATCH] virtiofsd: Add restart_syscall to the seccomp whitelist Dr. David Alan Gilbert
2021-02-03 14:27 ` Stefan Hajnoczi

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