From: syzbot ci <syzbot+ci84807814270b24b7@syzkaller.appspotmail.com>
To: davem@davemloft.net, edumazet@google.com, eric.dumazet@gmail.com,
horms@kernel.org, kuba@kernel.org, netdev@vger.kernel.org,
pabeni@redhat.com
Cc: syzbot@lists.linux.dev, syzkaller-bugs@googlegroups.com
Subject: [syzbot ci] Re: net: update netdev_lock_{type,name}
Date: Tue, 06 Jan 2026 23:29:41 -0800 [thread overview]
Message-ID: <695e0b65.050a0220.1c677c.0359.GAE@google.com> (raw)
In-Reply-To: <20260106164338.1738035-1-edumazet@google.com>
syzbot ci has tested the following series
[v1] net: update netdev_lock_{type,name}
https://lore.kernel.org/all/20260106164338.1738035-1-edumazet@google.com
* [PATCH net] net: update netdev_lock_{type,name}
and found the following issue:
WARNING in netdev_init_one_queue
Full report is available here:
https://ci.syzbot.org/series/68d4719e-5ae3-402a-a73d-99450d0774b4
***
WARNING in netdev_init_one_queue
tree: net
URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/netdev/net.git
base: 1806d210e5a8f431ad4711766ae4a333d407d972
arch: amd64
compiler: Debian clang version 21.1.8 (++20251202083448+f68f64eb8130-1~exp1~20251202083504.46), Debian LLD 21.1.8
config: https://ci.syzbot.org/builds/1c4d3398-ae52-417f-943e-84be818a07a6/config
------------[ cut here ]------------
netdev_lock_pos() could not find dev_type=824
WARNING: net/core/dev.c:527 at netdev_init_one_queue+0x1c5/0x440, CPU#1: syz-executor/6079
Modules linked in:
CPU: 1 UID: 0 PID: 6079 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:netdev_init_one_queue+0x1c7/0x440
Code: bf 3f 00 00 00 e8 b9 14 74 f8 66 41 83 ff 3e 0f 87 59 01 00 00 e8 09 11 74 f8 eb 19 e8 02 11 74 f8 48 8d 3d 3b 32 82 06 89 ee <67> 48 0f b9 3a 41 bf 3e 00 00 00 4e 8d 24 fd e0 1f 90 8c 4c 89 e0
RSP: 0018:ffffc90005487020 EFLAGS: 00010293
RAX: ffffffff894e61fe RBX: ffff88816c381000 RCX: ffff8881047257c0
RDX: 0000000000000000 RSI: 0000000000000338 RDI: ffffffff8fd09440
RBP: 0000000000000338 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000010 R11: ffffffff81ae36b0 R12: 000000000000fffe
R13: dffffc0000000000 R14: 000000000000003e R15: ffffffff8c9022d8
FS: 0000555586066500(0000) GS:ffff8882a9a0f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555586079888 CR3: 000000011929a000 CR4: 00000000000006f0
Call Trace:
<TASK>
alloc_netdev_mqs+0x937/0x11b0
rtnl_create_link+0x31f/0xd70
rtnl_newlink_create+0x277/0xb70
rtnl_newlink+0x1666/0x1be0
rtnetlink_rcv_msg+0x7d5/0xbe0
netlink_rcv_skb+0x232/0x4b0
netlink_unicast+0x80f/0x9b0
netlink_sendmsg+0x813/0xb40
__sock_sendmsg+0x21c/0x270
__sys_sendto+0x3c0/0x550
__x64_sys_sendto+0xde/0x100
do_syscall_64+0xe2/0xf80
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcc51555ed7
Code: 48 89 fa 4c 89 df e8 a8 56 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffe07b19fa0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000555586066500 RCX: 00007fcc51555ed7
RDX: 000000000000004c RSI: 00007fcc52334670 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00007ffe07b1a004 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
R13: 0000000000000000 R14: 00007fcc52334670 R15: 0000000000000000
</TASK>
***
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@syzkaller.appspotmail.com
---
This report is generated by a bot. It may contain errors.
syzbot ci engineers can be reached at syzkaller@googlegroups.com.
next prev parent reply other threads:[~2026-01-07 7:29 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-06 16:43 [PATCH net] net: update netdev_lock_{type,name} Eric Dumazet
2026-01-06 19:30 ` Jakub Kicinski
2026-01-06 19:43 ` Eric Dumazet
2026-01-06 19:45 ` Eric Dumazet
2026-01-07 7:29 ` syzbot ci [this message]
-- strict thread matches above, loose matches on Subject: below --
2026-01-07 12:54 [PATCH v2 " Eric Dumazet
2026-01-08 6:37 ` [syzbot ci] " syzbot ci
2026-01-08 9:22 ` Eric Dumazet
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