blob: 1d1c8b6c10d319246c91514909c2fac7be27d232 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
From: Karel Zak <kzak@redhat.com>
Date: Mon, 22 Apr 2024 14:28:52 +0200
Subject: lsns: fix netns use
# ip netns add vpn
# lsns -T -t net
Segmentation fault (core dumped)
The function interpolate_missing_namespaces() reads data from /proc.
However, in the case of a persistent namespace, there is no procfs
entry for the namespace. Therefore, this function should ignore it.
Fixes: https://github.com/util-linux/util-linux/issues/2982
Signed-off-by: Karel Zak <kzak@redhat.com>
(cherry picked from commit 42880f54894c1d7fd113552ff8474566a2595a0d)
---
sys-utils/lsns.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/sys-utils/lsns.c b/sys-utils/lsns.c
index 4ea01d2..6c87c47 100644
--- a/sys-utils/lsns.c
+++ b/sys-utils/lsns.c
@@ -793,6 +793,9 @@ static void interpolate_missing_namespaces(struct lsns *ls, struct lsns_namespac
int fd_orphan, fd_missing;
struct stat st;
+ if (!orphan->proc)
+ return;
+
orphan->related_ns[rela] = get_namespace(ls, orphan->related_id[rela]);
if (orphan->related_ns[rela])
return;
|
