syzbot

bridge0: entered promiscuous mode
team0: entered promiscuous mode
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:575
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 17302, name: syz.3.3052
preempt_count: 201, expected: 0
RCU nest depth: 0, expected: 0
3 locks held by syz.3.3052/17302:
 #0: ffffffff905f7160 (&ops->srcu#2){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:161 [inline]
 #0: ffffffff905f7160 (&ops->srcu#2){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:253 [inline]
 #0: ffffffff905f7160 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x113/0x2c0 net/core/rtnetlink.c:574
 #1: ffffffff8fedcf08 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
 #1: ffffffff8fedcf08 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
 #1: ffffffff8fedcf08 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x600/0x2000 net/core/rtnetlink.c:4064
 #2: ffff88802c8c0368 (&dev_addr_list_lock_key#6/2){+...}-{3:3}, at: netif_addr_lock_bh include/linux/netdevice.h:4839 [inline]
 #2: ffff88802c8c0368 (&dev_addr_list_lock_key#6/2){+...}-{3:3}, at: dev_uc_add+0x6f/0x110 net/core/dev_addr_lists.c:689
Preemption disabled at:
[<ffffffff893184f3>] local_bh_disable include/linux/bottom_half.h:20 [inline]
[<ffffffff893184f3>] netif_addr_lock_bh include/linux/netdevice.h:4838 [inline]
[<ffffffff893184f3>] dev_uc_add+0x63/0x110 net/core/dev_addr_lists.c:689
CPU: 1 UID: 0 PID: 17302 Comm: syz.3.3052 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 __might_resched+0x3c0/0x5e0 kernel/sched/core.c:8925
 __mutex_lock_common kernel/locking/mutex.c:575 [inline]
 __mutex_lock+0x102/0x1060 kernel/locking/mutex.c:760
 netdev_lock include/linux/netdevice.h:2765 [inline]
 netdev_lock_ops include/net/netdev_lock.h:42 [inline]
 netdev_lock_ops include/net/netdev_lock.h:39 [inline]
 dev_set_promiscuity+0xa2/0x260 net/core/dev_api.c:286
 team_change_rx_flags+0x11d/0x270 drivers/net/team/team_core.c:1783
 dev_change_rx_flags net/core/dev.c:9420 [inline]
 __dev_set_promiscuity+0x217/0x590 net/core/dev.c:9464
 netif_set_promiscuity+0x52/0x150 net/core/dev.c:9484
 dev_set_promiscuity+0xb2/0x260 net/core/dev_api.c:287
 br_port_set_promisc net/bridge/br_if.c:108 [inline]
 br_manage_promisc+0x2ce/0x4f0 net/bridge/br_if.c:157
 br_dev_change_rx_flags+0x3b/0x50 net/bridge/br_device.c:186
 dev_change_rx_flags net/core/dev.c:9420 [inline]
 __dev_set_promiscuity+0x217/0x590 net/core/dev.c:9464
 __dev_set_rx_mode+0x205/0x2e0 net/core/dev.c:9549
 dev_uc_add+0xee/0x110 net/core/dev_addr_lists.c:693
 macsec_dev_open+0xce/0x540 drivers/net/macsec.c:3557
 __dev_open+0x2e4/0x7c0 net/core/dev.c:1682
 __dev_change_flags+0x55d/0x720 net/core/dev.c:9637
 rtnl_configure_link+0xfe/0x280 net/core/rtnetlink.c:3587
 rtnl_newlink_create net/core/rtnetlink.c:3843 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3950 [inline]
 rtnl_newlink+0xcd9/0x2000 net/core/rtnetlink.c:4065
 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:6954
 netlink_rcv_skb+0x158/0x420 net/netlink/af_netlink.c:2552
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x5a7/0x870 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x8c8/0xdd0 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 ____sys_sendmsg+0xa98/0xc70 net/socket.c:2630
 ___sys_sendmsg+0x134/0x1d0 net/socket.c:2684
 __sys_sendmsg+0x16d/0x220 net/socket.c:2716
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc43858eec9
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:00007fc439394038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc4387e5fa0 RCX: 00007fc43858eec9
RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000004
RBP: 00007fc438611f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc4387e6038 R14: 00007fc4387e5fa0 R15: 00007ffc2437c768
 </TASK>

=============================
[ BUG: Invalid wait context ]
syzkaller #0 Tainted: G        W          
-----------------------------
syz.3.3052/17302 is trying to lock:
ffff88807babcd30 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2765 [inline]
ffff88807babcd30 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:42 [inline]
ffff88807babcd30 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:39 [inline]
ffff88807babcd30 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: dev_set_promiscuity+0xa2/0x260 net/core/dev_api.c:286
other info that might help us debug this:
context-{5:5}
3 locks held by syz.3.3052/17302:
 #0: ffffffff905f7160 (&ops->srcu#2){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:161 [inline]
 #0: ffffffff905f7160 (&ops->srcu#2){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:253 [inline]
 #0: ffffffff905f7160 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x113/0x2c0 net/core/rtnetlink.c:574
 #1: ffffffff8fedcf08 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
 #1: ffffffff8fedcf08 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
 #1: ffffffff8fedcf08 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x600/0x2000 net/core/rtnetlink.c:4064
 #2: ffff88802c8c0368 (&dev_addr_list_lock_key#6/2){+...}-{3:3}, at: netif_addr_lock_bh include/linux/netdevice.h:4839 [inline]
 #2: ffff88802c8c0368 (&dev_addr_list_lock_key#6/2){+...}-{3:3}, at: dev_uc_add+0x6f/0x110 net/core/dev_addr_lists.c:689
stack backtrace:
CPU: 1 UID: 0 PID: 17302 Comm: syz.3.3052 Tainted: G        W           syzkaller #0 PREEMPT(full) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_lock_invalid_wait_context kernel/locking/lockdep.c:4830 [inline]
 check_wait_context kernel/locking/lockdep.c:4902 [inline]
 __lock_acquire+0xa27/0x1ce0 kernel/locking/lockdep.c:5187
 lock_acquire kernel/locking/lockdep.c:5868 [inline]
 lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5825
 __mutex_lock_common kernel/locking/mutex.c:598 [inline]
 __mutex_lock+0x193/0x1060 kernel/locking/mutex.c:760
 netdev_lock include/linux/netdevice.h:2765 [inline]
 netdev_lock_ops include/net/netdev_lock.h:42 [inline]
 netdev_lock_ops include/net/netdev_lock.h:39 [inline]
 dev_set_promiscuity+0xa2/0x260 net/core/dev_api.c:286
 team_change_rx_flags+0x11d/0x270 drivers/net/team/team_core.c:1783
 dev_change_rx_flags net/core/dev.c:9420 [inline]
 __dev_set_promiscuity+0x217/0x590 net/core/dev.c:9464
 netif_set_promiscuity+0x52/0x150 net/core/dev.c:9484
 dev_set_promiscuity+0xb2/0x260 net/core/dev_api.c:287
 br_port_set_promisc net/bridge/br_if.c:108 [inline]
 br_manage_promisc+0x2ce/0x4f0 net/bridge/br_if.c:157
 br_dev_change_rx_flags+0x3b/0x50 net/bridge/br_device.c:186
 dev_change_rx_flags net/core/dev.c:9420 [inline]
 __dev_set_promiscuity+0x217/0x590 net/core/dev.c:9464
 __dev_set_rx_mode+0x205/0x2e0 net/core/dev.c:9549
 dev_uc_add+0xee/0x110 net/core/dev_addr_lists.c:693
 macsec_dev_open+0xce/0x540 drivers/net/macsec.c:3557
 __dev_open+0x2e4/0x7c0 net/core/dev.c:1682
 __dev_change_flags+0x55d/0x720 net/core/dev.c:9637
 rtnl_configure_link+0xfe/0x280 net/core/rtnetlink.c:3587
 rtnl_newlink_create net/core/rtnetlink.c:3843 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3950 [inline]
 rtnl_newlink+0xcd9/0x2000 net/core/rtnetlink.c:4065
 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:6954
 netlink_rcv_skb+0x158/0x420 net/netlink/af_netlink.c:2552
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x5a7/0x870 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x8c8/0xdd0 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 ____sys_sendmsg+0xa98/0xc70 net/socket.c:2630
 ___sys_sendmsg+0x134/0x1d0 net/socket.c:2684
 __sys_sendmsg+0x16d/0x220 net/socket.c:2716
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc43858eec9
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:00007fc439394038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc4387e5fa0 RCX: 00007fc43858eec9
RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000004
RBP: 00007fc438611f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc4387e6038 R14: 00007fc4387e5fa0 R15: 00007ffc2437c768
 </TASK>
macsec2: entered promiscuous mode
bridge0: port 2(macsec2) entered blocking state
bridge0: port 2(macsec2) entered disabled state
macsec2: entered allmulticast mode
bridge0: entered allmulticast mode
macsec2: left allmulticast mode
bridge0: left allmulticast mode
bridge0: left promiscuous mode
team0: left promiscuous mode
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:575
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 17302, name: syz.3.3052
preempt_count: 201, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
Preemption disabled at:
[<ffffffff893181b3>] local_bh_disable include/linux/bottom_half.h:20 [inline]
[<ffffffff893181b3>] netif_addr_lock_bh include/linux/netdevice.h:4838 [inline]
[<ffffffff893181b3>] dev_uc_del+0x63/0x100 net/core/dev_addr_lists.c:711
CPU: 1 UID: 0 PID: 17302 Comm: syz.3.3052 Tainted: G        W           syzkaller #0 PREEMPT(full) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 __might_resched+0x3c0/0x5e0 kernel/sched/core.c:8925
 __mutex_lock_common kernel/locking/mutex.c:575 [inline]
 __mutex_lock+0x102/0x1060 kernel/locking/mutex.c:760
 netdev_lock include/linux/netdevice.h:2765 [inline]
 netdev_lock_ops include/net/netdev_lock.h:42 [inline]
 netdev_lock_ops include/net/netdev_lock.h:39 [inline]
 dev_set_promiscuity+0xa2/0x260 net/core/dev_api.c:286
 team_change_rx_flags+0x11d/0x270 drivers/net/team/team_core.c:1783
 dev_change_rx_flags net/core/dev.c:9420 [inline]
 __dev_set_promiscuity+0x217/0x590 net/core/dev.c:9464
 netif_set_promiscuity+0x52/0x150 net/core/dev.c:9484
 dev_set_promiscuity+0xb2/0x260 net/core/dev_api.c:287
 br_port_clear_promisc net/bridge/br_if.c:135 [inline]
 br_manage_promisc+0x3da/0x4f0 net/bridge/br_if.c:172
 br_dev_change_rx_flags+0x3b/0x50 net/bridge/br_device.c:186
 dev_change_rx_flags net/core/dev.c:9420 [inline]
 __dev_set_promiscuity+0x217/0x590 net/core/dev.c:9464
 __dev_set_rx_mode+0x244/0x2e0 net/core/dev.c:9552
 dev_uc_del+0xe8/0x100 net/core/dev_addr_lists.c:715
 macsec_dev_stop+0x1a8/0x300 drivers/net/macsec.c:3631
 __dev_close_many+0x298/0x760 net/core/dev.c:1755
 netif_close_many+0x233/0x630 net/core/dev.c:1780
 unregister_netdevice_many_notify+0x563/0x24c0 net/core/dev.c:12224
 rtnl_newlink_create net/core/rtnetlink.c:3861 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3950 [inline]
 rtnl_newlink+0x171e/0x2000 net/core/rtnetlink.c:4065
 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:6954
 netlink_rcv_skb+0x158/0x420 net/netlink/af_netlink.c:2552
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x5a7/0x870 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x8c8/0xdd0 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 ____sys_sendmsg+0xa98/0xc70 net/socket.c:2630
 ___sys_sendmsg+0x134/0x1d0 net/socket.c:2684
 __sys_sendmsg+0x16d/0x220 net/socket.c:2716
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc43858eec9
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:00007fc439394038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc4387e5fa0 RCX: 00007fc43858eec9
RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000004
RBP: 00007fc438611f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc4387e6038 R14: 00007fc4387e5fa0 R15: 00007ffc2437c768
 </TASK>