From: "Dr. David Alan Gilbert (git)" <dgilbert@redhat.com>
To: qemu-devel@nongnu.org, virtio-fs@redhat.com, stefanha@redhat.com,
groug@kaod.org, qemu-stable@nongnu.org
Subject: [PULL 4/5] virtiofsd: Add _llseek to the seccomp whitelist
Date: Thu, 4 Feb 2021 18:34:38 +0000 [thread overview]
Message-ID: <20210204183439.546918-5-dgilbert@redhat.com> (raw)
In-Reply-To: <20210204183439.546918-1-dgilbert@redhat.com>
From: Greg Kurz <groug@kaod.org>
This is how glibc implements lseek(2) on POWER.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1917692
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20210121171540.1449777-1-groug@kaod.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
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 a60d7da4b4..1ecf5bf318 100644
--- a/tools/virtiofsd/passthrough_seccomp.c
+++ b/tools/virtiofsd/passthrough_seccomp.c
@@ -65,6 +65,7 @@ static const int syscall_whitelist[] = {
SCMP_SYS(linkat),
SCMP_SYS(listxattr),
SCMP_SYS(lseek),
+ SCMP_SYS(_llseek), /* For POWER */
SCMP_SYS(madvise),
SCMP_SYS(mkdirat),
SCMP_SYS(mknodat),
--
2.29.2
next prev parent reply other threads:[~2021-02-04 19:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-04 18:34 [PULL 0/5] virtiofs queue: Security fix Dr. David Alan Gilbert (git)
2021-02-04 18:34 ` [PULL 1/5] virtiofsd: extract lo_do_open() from lo_open() Dr. David Alan Gilbert (git)
2021-02-04 18:34 ` [PULL 2/5] virtiofsd: optionally return inode pointer from lo_do_lookup() Dr. David Alan Gilbert (git)
2021-02-04 18:34 ` [PULL 3/5] virtiofsd: prevent opening of special files (CVE-2020-35517) Dr. David Alan Gilbert (git)
2021-02-04 18:34 ` Dr. David Alan Gilbert (git) [this message]
2021-02-04 18:34 ` [PULL 5/5] virtiofsd: Add restart_syscall to the seccomp whitelist Dr. David Alan Gilbert (git)
2021-02-04 19:24 ` [PULL 0/5] virtiofs queue: Security fix no-reply
2021-02-04 19:39 ` Dr. David Alan Gilbert
2021-02-05 10:08 ` Peter Maydell
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