netdev - [syzbot ci] Re: net-memcg: Decouple controlled memcg from sk->sk_prot->memory

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <689af163.050a0220.7f033.0112.GAE@google.com>
Date: Tue, 12 Aug 2025 00:46:43 -0700
From: syzbot ci <syzbot+cic0c8bc3087cfc855@...kaller.appspotmail.com>
To: akpm@...ux-foundation.org, almasrymina@...gle.com, cgroups@...r.kernel.org, 
	davem@...emloft.net, edumazet@...gle.com, geliang@...nel.org, 
	hannes@...xchg.org, horms@...nel.org, kuba@...nel.org, kuni1840@...il.com, 
	kuniyu@...gle.com, linux-mm@...ck.org, martineau@...nel.org, 
	matttbe@...nel.org, mhocko@...nel.org, mkoutny@...e.com, 
	mptcp@...ts.linux.dev, muchun.song@...ux.dev, ncardwell@...gle.com, 
	netdev@...r.kernel.org, pabeni@...hat.com, roman.gushchin@...ux.dev, 
	shakeel.butt@...ux.dev, tj@...nel.org, willemb@...gle.com
Cc: syzbot@...ts.linux.dev, syzkaller-bugs@...glegroups.com
Subject: [syzbot ci] Re: net-memcg: Decouple controlled memcg from sk->sk_prot->memory_allocated.

syzbot ci has tested the following series

[v2] net-memcg: Decouple controlled memcg from sk->sk_prot->memory_allocated.
https://lore.kernel.org/all/20250811173116.2829786-1-kuniyu@google.com
* [PATCH v2 net-next 01/12] mptcp: Fix up subflow's memcg when CONFIG_SOCK_CGROUP_DATA=n.
* [PATCH v2 net-next 02/12] mptcp: Use tcp_under_memory_pressure() in mptcp_epollin_ready().
* [PATCH v2 net-next 03/12] tcp: Simplify error path in inet_csk_accept().
* [PATCH v2 net-next 04/12] net: Call trace_sock_exceed_buf_limit() for memcg failure with SK_MEM_RECV.
* [PATCH v2 net-next 05/12] net: Clean up __sk_mem_raise_allocated().
* [PATCH v2 net-next 06/12] net-memcg: Introduce mem_cgroup_from_sk().
* [PATCH v2 net-next 07/12] net-memcg: Introduce mem_cgroup_sk_enabled().
* [PATCH v2 net-next 08/12] net-memcg: Pass struct sock to mem_cgroup_sk_(un)?charge().
* [PATCH v2 net-next 09/12] net-memcg: Pass struct sock to mem_cgroup_sk_under_memory_pressure().
* [PATCH v2 net-next 10/12] net: Define sk_memcg under CONFIG_MEMCG.
* [PATCH v2 net-next 11/12] net-memcg: Store MEMCG_SOCK_ISOLATED in sk->sk_memcg.
* [PATCH v2 net-next 12/12] net-memcg: Decouple controlled memcg from global protocol memory accounting.

and found the following issue:
kernel build error

Full report is available here:
https://ci.syzbot.org/series/6fc666d9-cfec-413c-a98c-75c91ad6c07d

***

kernel build error

tree:      net-next
URL:       https://kernel.googlesource.com/pub/scm/linux/kernel/git/netdev/net-next.git
base:      37816488247ddddbc3de113c78c83572274b1e2e
arch:      amd64
compiler:  Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
config:    https://ci.syzbot.org/builds/a5d5d856-2809-4eee-87ca-2cd1630214ae/config

net/tls/tls_device.c:374:8: error: call to undeclared function 'sk_should_enter_memory_pressure'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]

***

If these findings have caused you to resend the series or submit a
separate fix, please add the following tag to your commit message:
Tested-by: syzbot@...kaller.appspotmail.com

---
This report is generated by a bot. It may contain errors.
syzbot ci engineers can be reached at syzkaller@...glegroups.com.