systemd/backport-shared-reject-empty-attachment-path.patch
wangyuhang a4f95d3244 sync patch from systemd community
(cherry picked from commit 88369f234ec01b60fb047caf87b90ef10a92b0db)
2023-10-10 10:04:24 +08:00

33 lines
1.1 KiB
Diff

From b38eae99f5dd7c796ade7865fe8093475715a21f Mon Sep 17 00:00:00 2001
From: Frantisek Sumsal <frantisek@sumsal.cz>
Date: Tue, 2 May 2023 22:37:17 +0200
Subject: [PATCH] shared: reject empty attachment path
(cherry picked from commit 740831076cfcf2f73f3063fbb040c1ea593dfe6c)
(cherry picked from commit ce096b0212aac52fad658aaec5ff53b0d6eb18ad)
(cherry picked from commit f76199e779444590c50f7df60b8c5b235b9447b0)
Conflict:code context adaptation
Reference:https://github.com/systemd/systemd-stable/commit/b38eae99f5dd7c796ade7865fe8093475715a21f
---
src/shared/bpf-program.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/shared/bpf-program.c b/src/shared/bpf-program.c
index 31fa4448b0..57a009a965 100644
--- a/src/shared/bpf-program.c
+++ b/src/shared/bpf-program.c
@@ -452,6 +452,9 @@ int bpf_program_deserialize_attachment(const char *v, FDSet *fds, BPFProgram **b
return at;
/* The rest is the path */
+ if (isempty(v))
+ return -EINVAL;
+
r = cunescape(v, 0, &unescaped);
if (r < 0)
return r;
--
2.33.0