Deny (non-fatal) shmget/shmat/shmdt in preauth privsep child.

New wait_random_seeded() function on OpenSSL 1.1.1d uses shmget, shmat, and shmdt
in the preauth codepath, deny (non-fatal) in seccomp_filter sandbox.

diff --git a/sandbox-seccomp-filter.c b/sandbox-seccomp-filter.c
index 840c5232bfefaabdbdd7e37dc4eec204490698e0..39dc289e3e104e99b54763f89303e340ab64d948 100644 (file)
--- a/sandbox-seccomp-filter.c
+++ b/sandbox-seccomp-filter.c
@@ -168,6 +168,15 @@ static const struct sock_filter preauth_insns[] = {
 #ifdef __NR_stat64
        SC_DENY(__NR_stat64, EACCES),
 #endif
+#ifdef __NR_shmget
+       SC_DENY(__NR_shmget, EACCES),
+#endif
+#ifdef __NR_shmat
+       SC_DENY(__NR_shmat, EACCES),
+#endif
+#ifdef __NR_shmdt
+       SC_DENY(__NR_shmdt, EACCES),
+#endif
 
        /* Syscalls to permit */
 #ifdef __NR_brk