I can confirm that the patch from
https://bugs.launchpad.net/ubuntu/+source/drbd-utils/+bug/1866458
against drbd-utils 9.5.0-1 works and fixes the issue for me.
Like Denis I'm on Proxmox PVE 6 (buster based) with linux 5.4.44-2
This problem hit me too.
Tom
Description: netlink: Add NLA_F_NESTED flag to nested attribute
The mainline kernel v5.2 commit b424e432e770
("netlink: add validation of NLA_F_NESTED flag") imposes strict validation
against nested attribute as follow.
"
Add new validation flag NL_VALIDATE_NESTED which adds three consistency
checks of NLA_F_NESTED_FLAG:
- the flag is set on attributes with NLA_NESTED{,_ARRAY} policy
- the flag is not set on attributes with other policies except NLA_UNSPEC
- the flag is set on attribute passed to nla_parse_nested()
"
Sending messages with nested attribute without NLA_F_NESTED would cause failed
validation. For example,
$ drbdsetup new-resource r0
Invalid argument
This patch adds NLA_F_NESTED flag to all nested attributes.
Signed-off-by: He Zhe <zhe...@windriver.com>
Author: He Zhe <zhe...@windriver.com>
Origin: upstream, https://github.com/LINBIT/drbd-utils/commit/859151b228
Bug: https://github.com/LINBIT/drbd-utils/pull/4
Bug-Ubuntu: https://launchpad.net/bugs/1866458
Reviewed-By: Rafael David Tinoco <rafaeldtin...@ubuntu.com>
Last-Update: 2020-03-09
--- drbd-utils-8.9.10.orig/user/shared/libgenl.h
+++ drbd-utils-8.9.10/user/shared/libgenl.h
@@ -851,7 +851,7 @@ static inline struct nlattr *nla_nest_st
{
struct nlattr *start = (struct nlattr *)msg->tail;
- if (nla_put(msg, attrtype, 0, NULL) < 0)
+ if (nla_put(msg, attrtype | NLA_F_NESTED, 0, NULL) < 0)
return NULL;
return start;
