From 489e04f2c23327dd95981327d8757144a4e574af Mon Sep 17 00:00:00 2001 From: Jeremy Drake Date: Fri, 11 Oct 2019 18:31:05 -0700 Subject: Deny (non-fatal) ipc in preauth privsep child. As noted in openssh/openssh-portable#149, i386 does not have have _NR_shmget etc. Instead, it has a single ipc syscall (see man 2 ipc, https://linux.die.net/man/2/ipc). Add this syscall, if present, to the list of syscalls that seccomp will deny non-fatally. Bug-Debian: https://bugs.debian.org/946242 Origin: upstream, https://anongit.mindrot.org/openssh.git/commit/?id=30f704ebc0e9e32b3d12f5d9e8c1b705fdde2c89 Last-Update: 2020-01-11 Patch-Name: sandbox-seccomp-ipc.patch --- sandbox-seccomp-filter.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sandbox-seccomp-filter.c b/sandbox-seccomp-filter.c index 999c46c9f..0914e48ba 100644 --- a/sandbox-seccomp-filter.c +++ b/sandbox-seccomp-filter.c @@ -177,6 +177,9 @@ static const struct sock_filter preauth_insns[] = { #ifdef __NR_shmdt SC_DENY(__NR_shmdt, EACCES), #endif +#ifdef __NR_ipc + SC_DENY(__NR_ipc, EACCES), +#endif /* Syscalls to permit */ #ifdef __NR_brk