On Fri, Nov 25, 2022 at 3:40 PM Marc Hartmayer <mhartmay@linux.ibm.com> wrote:
The virtiofsd currently crashes on s390x. This is because of a
`sigreturn` system call. See audit log below:
type=SECCOMP msg=audit(1669382477.611:459): auid=4294967295 uid=0 gid=0 ses=4294967295
subj=system_u:system_r:virtd_t:s0-s0:c0.c1023 pid=6649 comm="virtiofsd" exe="/usr/libexec/virtiofsd" sig=31
arch=80000016 syscall=119 compat=0 ip=0x3fff15f748a code=0x80000000AUID="unset" UID="root"
GID="root" ARCH=s390x SYSCALL=sigreturn
Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.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 888295c073de..0033dab4939e 100644
--- a/tools/virtiofsd/passthrough_seccomp.c
+++ b/tools/virtiofsd/passthrough_seccomp.c
@@ -110,6 +110,7 @@ static const int syscall_allowlist[] = {
#endif
SCMP_SYS(set_robust_list),
SCMP_SYS(setxattr),
+ SCMP_SYS(sigreturn),
SCMP_SYS(symlinkat),
SCMP_SYS(syncfs),
SCMP_SYS(time), /* Rarely needed, except on static builds */
--
2.34.1
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Reviewed-by: German Maglione <gmaglione@redhat.com>
Should we add this also in the rust version?, I see we don't have it
enabled either.