From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f208.google.com (mail-il1-f208.google.com [209.85.166.208]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B80551F0E55 for ; Tue, 8 Jul 2025 17:30:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.208 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751995831; cv=none; b=cWnldXyuS9xjhp6cBh/ZosWkqBJVozcNnpT53fwQsyzyxPoIOufZv7LNvFYYWXeUX8W/6++sUQXgoNAvBL5XDXbz8NWaCqaq/Jb6+IzSeQfdvXtcfISxWiYIQ+9yJUHWTBvSOYS3C4I8r0Yd7URBJCqnO9nn3+Mtsm18225JHmo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751995831; c=relaxed/simple; bh=Ft+juv58VLMvhRWzX4+AKCs9fl31lVonbN0VUF9WHSw=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=nQB3TsQUOf7sEo4ulmQTd/8W+b9NqEQPbjvWvRImymz18xOhfw+JdX4kcRXQWgEusVwQUdMNOTdV8lb3lVy84qaynPI9t2T2eb3AKFecTeXKJvP7YaMVU/08OM9YHnuRuEZ6TxsdfqeZx2hybQ/EG3+anauDrnW77kPBix8J8Sc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.208 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f208.google.com with SMTP id e9e14a558f8ab-3df2e89fc8aso38392125ab.2 for ; Tue, 08 Jul 2025 10:30:29 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751995829; x=1752600629; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=D0QuI5r6lOBDwHqNaBIJpOmCjV4Gimqib0l4a1lugcA=; b=ltwYeOiheH8f+PFcE4a59zC+RdLYJRkymScnjoqBxrGQTx+QZFYh1bXuOom6zydW4A XRSxOC1mYSLBRt5R3Me9N588uIzTURtVgUmOGWzRMnKEZjf2l9MPtf60DHsBPYz2zkHW 1O36NopBiWBa65bFtji08e2wowzzORkp4OTfZWPB/MzlHA5QcbkA7P2DPwE8IZDM+HMm EtV/CykMpcyLocDPKl7nuZ3sAEURpA6KWg6FNNXc7fK/jlOBk4AGEolC2jrWV4QxFr0n R1Bl+PgPd6zIDvufWx2RdMtZksa+IroICsM+X7ER9MehVXyrzaktChGJEgtka/RNDzfN mojQ== X-Forwarded-Encrypted: i=1; AJvYcCW2jUxcb/bIPn48T7MnxzAla2aLrvxkVH4QQUQRO15Ffv5jqaoQ9BFr75kwWPHn/3JCiHw/VAg=@vger.kernel.org X-Gm-Message-State: AOJu0Yxshg7fd5pbgF7pnxOX6RQRmdFQlR4pOn8TfMKZukVuVudf11tL EQpuNYSOyyfBMNQ0/x4Klqlrahse1PVJkA3/v5vP4ehBImS8cEudNCHiiHqtc/QoprhE9YQLMRX f+SIv3R4XnqLxn/oHzPU2qW2q7yiyUJbOBUjFdOHcOex4wCk3chILCdDnCpg= X-Google-Smtp-Source: AGHT+IHwWtsSgL0GJcdWkOdN5/BrkJoD0QCrKgk/qkbW9WoCKBcWpzNKkGoRDqWXxtAxauH6Qcy66WxBabaA1VjuDdxZQeAIRh5t Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:b2d:b0:3df:34b4:1db8 with SMTP id e9e14a558f8ab-3e1637eaaf1mr6875425ab.4.1751995828881; Tue, 08 Jul 2025 10:30:28 -0700 (PDT) Date: Tue, 08 Jul 2025 10:30:28 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <686d55b4.050a0220.1ffab7.0014.GAE@google.com> Subject: [syzbot] [net?] BUG: sleeping function called from invalid context in dev_set_promiscuity (2) From: syzbot To: davem@davemloft.net, edumazet@google.com, horms@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 1e3b66e32601 vsock: fix `vsock_proto` declaration git tree: net console output: https://syzkaller.appspot.com/x/log.txt?x=16cbf28c580000 kernel config: https://syzkaller.appspot.com/x/.config?x=b29b1a0d7330d4a8 dashboard link: https://syzkaller.appspot.com/bug?extid=6e619ff6dd4c8618a635 compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/11faaf1afe22/disk-1e3b66e3.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/ba355ce28c50/vmlinux-1e3b66e3.xz kernel image: https://storage.googleapis.com/syzbot-assets/018f94fd1327/bzImage-1e3b66e3.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+6e619ff6dd4c8618a635@syzkaller.appspotmail.com netlink: 8 bytes leftover after parsing attributes in process `syz.3.2844'. macsec0: entered promiscuous mode BUG: sleeping function called from invalid context at kernel/locking/mutex.c:579 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 15744, name: syz.3.2844 preempt_count: 201, expected: 0 RCU nest depth: 0, expected: 0 3 locks held by syz.3.2844/15744: #0: ffffffff8fa219b8 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #0: ffffffff8fa219b8 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #0: ffffffff8fa219b8 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250 net/core/rtnetlink.c:570 #1: ffffffff8f51c5c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #1: ffffffff8f51c5c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline] #1: ffffffff8f51c5c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8db/0x1c70 net/core/rtnetlink.c:4054 #2: ffff88802cb3a368 (&macsec_netdev_addr_lock_key/1){+...}-{3:3}, at: netif_addr_lock_bh include/linux/netdevice.h:4805 [inline] #2: ffff88802cb3a368 (&macsec_netdev_addr_lock_key/1){+...}-{3:3}, at: dev_uc_add+0x67/0x120 net/core/dev_addr_lists.c:689 Preemption disabled at: [] local_bh_disable include/linux/bottom_half.h:20 [inline] [] netif_addr_lock_bh include/linux/netdevice.h:4804 [inline] [] dev_uc_add+0x56/0x120 net/core/dev_addr_lists.c:689 CPU: 1 UID: 0 PID: 15744 Comm: syz.3.2844 Not tainted 6.16.0-rc4-syzkaller-00114-g1e3b66e32601 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 __might_resched+0x495/0x610 kernel/sched/core.c:8800 __mutex_lock_common kernel/locking/mutex.c:579 [inline] __mutex_lock+0x106/0xe80 kernel/locking/mutex.c:747 netdev_lock include/linux/netdevice.h:2756 [inline] netdev_lock_ops include/net/netdev_lock.h:42 [inline] dev_set_promiscuity+0x10e/0x260 net/core/dev_api.c:286 dev_change_rx_flags net/core/dev.c:9241 [inline] __dev_set_promiscuity+0x534/0x740 net/core/dev.c:9285 __dev_set_rx_mode+0x17c/0x260 net/core/dev.c:-1 dev_uc_add+0xc8/0x120 net/core/dev_addr_lists.c:693 macsec_dev_open+0xd9/0x530 drivers/net/macsec.c:3634 __dev_open+0x470/0x880 net/core/dev.c:1683 __dev_change_flags+0x1ea/0x6d0 net/core/dev.c:9458 rtnl_configure_link net/core/rtnetlink.c:3577 [inline] rtnl_newlink_create+0x555/0xb00 net/core/rtnetlink.c:3833 __rtnl_newlink net/core/rtnetlink.c:3940 [inline] rtnl_newlink+0x16d6/0x1c70 net/core/rtnetlink.c:4055 rtnetlink_rcv_msg+0x7cc/0xb70 net/core/rtnetlink.c:6944 netlink_rcv_skb+0x205/0x470 net/netlink/af_netlink.c:2551 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x759/0x8e0 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x219/0x270 net/socket.c:727 ____sys_sendmsg+0x505/0x830 net/socket.c:2566 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2620 __sys_sendmsg net/socket.c:2652 [inline] __do_sys_sendmsg net/socket.c:2657 [inline] __se_sys_sendmsg net/socket.c:2655 [inline] __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2655 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f64fc18e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f64fd052038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f64fc3b5fa0 RCX: 00007f64fc18e929 RDX: 0000000000000800 RSI: 0000200000000280 RDI: 0000000000000004 RBP: 00007f64fc210b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f64fc3b5fa0 R15: 00007ffd8fec8448 ============================= [ BUG: Invalid wait context ] 6.16.0-rc4-syzkaller-00114-g1e3b66e32601 #0 Tainted: G W ----------------------------- syz.3.2844/15744 is trying to lock: ffff888077de0d30 (&dev_instance_lock_key#20){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2756 [inline] ffff888077de0d30 (&dev_instance_lock_key#20){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:42 [inline] ffff888077de0d30 (&dev_instance_lock_key#20){+.+.}-{4:4}, at: dev_set_promiscuity+0x10e/0x260 net/core/dev_api.c:286 other info that might help us debug this: context-{5:5} 3 locks held by syz.3.2844/15744: #0: ffffffff8fa219b8 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #0: ffffffff8fa219b8 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #0: ffffffff8fa219b8 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250 net/core/rtnetlink.c:570 #1: ffffffff8f51c5c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #1: ffffffff8f51c5c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline] #1: ffffffff8f51c5c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8db/0x1c70 net/core/rtnetlink.c:4054 #2: ffff88802cb3a368 (&macsec_netdev_addr_lock_key/1){+...}-{3:3}, at: netif_addr_lock_bh include/linux/netdevice.h:4805 [inline] #2: ffff88802cb3a368 (&macsec_netdev_addr_lock_key/1){+...}-{3:3}, at: dev_uc_add+0x67/0x120 net/core/dev_addr_lists.c:689 stack backtrace: CPU: 1 UID: 0 PID: 15744 Comm: syz.3.2844 Tainted: G W 6.16.0-rc4-syzkaller-00114-g1e3b66e32601 #0 PREEMPT(full) Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 print_lock_invalid_wait_context kernel/locking/lockdep.c:4833 [inline] check_wait_context kernel/locking/lockdep.c:4905 [inline] __lock_acquire+0xbcb/0xd20 kernel/locking/lockdep.c:5190 lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5871 __mutex_lock_common kernel/locking/mutex.c:602 [inline] __mutex_lock+0x182/0xe80 kernel/locking/mutex.c:747 netdev_lock include/linux/netdevice.h:2756 [inline] netdev_lock_ops include/net/netdev_lock.h:42 [inline] dev_set_promiscuity+0x10e/0x260 net/core/dev_api.c:286 dev_change_rx_flags net/core/dev.c:9241 [inline] __dev_set_promiscuity+0x534/0x740 net/core/dev.c:9285 __dev_set_rx_mode+0x17c/0x260 net/core/dev.c:-1 dev_uc_add+0xc8/0x120 net/core/dev_addr_lists.c:693 macsec_dev_open+0xd9/0x530 drivers/net/macsec.c:3634 __dev_open+0x470/0x880 net/core/dev.c:1683 __dev_change_flags+0x1ea/0x6d0 net/core/dev.c:9458 rtnl_configure_link net/core/rtnetlink.c:3577 [inline] rtnl_newlink_create+0x555/0xb00 net/core/rtnetlink.c:3833 __rtnl_newlink net/core/rtnetlink.c:3940 [inline] rtnl_newlink+0x16d6/0x1c70 net/core/rtnetlink.c:4055 rtnetlink_rcv_msg+0x7cc/0xb70 net/core/rtnetlink.c:6944 netlink_rcv_skb+0x205/0x470 net/netlink/af_netlink.c:2551 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x759/0x8e0 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x219/0x270 net/socket.c:727 ____sys_sendmsg+0x505/0x830 net/socket.c:2566 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2620 __sys_sendmsg net/socket.c:2652 [inline] __do_sys_sendmsg net/socket.c:2657 [inline] __se_sys_sendmsg net/socket.c:2655 [inline] __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2655 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f64fc18e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f64fd052038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f64fc3b5fa0 RCX: 00007f64fc18e929 RDX: 0000000000000800 RSI: 0000200000000280 RDI: 0000000000000004 RBP: 00007f64fc210b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f64fc3b5fa0 R15: 00007ffd8fec8448 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup