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| author | Thomas Huth <thuth@redhat.com> | 2021-09-14 14:32:14 +0200 |
|---|---|---|
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2021-09-16 14:50:48 +0100 |
| commit | 8cfd339b3d402f913fe520a4f35f30152fb4fb80 (patch) | |
| tree | 35818056e5b0bff6077a6365ba8d5ed5067b35cc | |
| parent | 57b6f58c1d0df757c9311496c32d502925056894 (diff) | |
| download | qemu-8cfd339b3d402f913fe520a4f35f30152fb4fb80.zip qemu-8cfd339b3d402f913fe520a4f35f30152fb4fb80.tar.gz qemu-8cfd339b3d402f913fe520a4f35f30152fb4fb80.tar.bz2 | |
tools/virtiofsd: Add fstatfs64 syscall to the seccomp allowlist
The virtiofsd currently crashes on s390x when doing something like
this in the guest:
mkdir -p /mnt/myfs
mount -t virtiofs myfs /mnt/myfs
touch /mnt/myfs/foo.txt
stat -f /mnt/myfs/foo.txt
The problem is that the fstatfs64 syscall is called in this case
from the virtiofsd. We have to put it on the seccomp allowlist to
avoid that the daemon gets killed in this case.
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=2001728
Suggested-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210914123214.181885-1-thuth@redhat.com>
Reviewed-by: Vivek Goyal <vgoyal@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| -rw-r--r-- | tools/virtiofsd/passthrough_seccomp.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/virtiofsd/passthrough_seccomp.c b/tools/virtiofsd/passthrough_seccomp.c index f49ed94..a3ce9f8 100644 --- a/tools/virtiofsd/passthrough_seccomp.c +++ b/tools/virtiofsd/passthrough_seccomp.c @@ -51,6 +51,7 @@ static const int syscall_allowlist[] = { SCMP_SYS(fsetxattr), SCMP_SYS(fstat), SCMP_SYS(fstatfs), + SCMP_SYS(fstatfs64), SCMP_SYS(fsync), SCMP_SYS(ftruncate), SCMP_SYS(futex), |