shared: reject empty attachment path

2025-01-09 01:18:19 +03:00 · 2023-05-02 22:37:17 +02:00 · 2023-05-02 22:37:17 +02:00 · 740831076c
commit 740831076c
parent 1febf60f9d
2 changed files with 14 additions and 0 deletions
--- a/src/shared/bpf-program.c
+++ b/src/shared/bpf-program.c
@ -467,6 +467,9 @@ int bpf_program_deserialize_attachment(const char *v, FDSet *fds, BPFProgram **b
                return at;

        /* The rest is the path */
+        if (isempty(v))
+                return -EINVAL;
+
        l = cunescape(v, 0, &unescaped);
        if (l < 0)
                return l;
--- a/test/fuzz/fuzz-manager-serialize/crash-fc5f5254c946097a774cccec5427289b748e6f2a
+++ b/test/fuzz/fuzz-manager-serialize/crash-fc5f5254c946097a774cccec5427289b748e6f2a
@ -0,0 +1,11 @@
+curr    :er
+82967574637335/dprunning
+
+run-stedm\x2dsysctl.service.mount
+s4002
+te-ewal=0
+stat25 0
+ip-bpf-egress-installed=1651 4116038
+condi/dpad-nriv-j0
+userspmath-pci\x2d0000:00:01.1\x2d0
+ip-bpf-egress-installed=1651 recvmsg6