netlink: 4 bytes leftover after parsing attributes in process `syz.5.1589'.
bridge0: entered promiscuous mode
team0: entered promiscuous mode
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:591
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 11525, name: syz.5.1589
preempt_count: 201, expected: 0
RCU nest depth: 0, expected: 0
3 locks held by syz.5.1589/11525:
 #0: ffffffff8f825c60 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #0: ffffffff8f825c60 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:867 [inline]
 #0: ffffffff8f825c60 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250 net/core/rtnetlink.c:570
 #1: ffffffff8f311c88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
 #1: ffffffff8f311c88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
 #1: ffffffff8f311c88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8ec/0x1c90 net/core/rtnetlink.c:4071
 #2: ffff8880435cc368 (&dev_addr_list_lock_key#6/2){+...}-{3:3}, at: netif_addr_lock_bh include/linux/netdevice.h:4864 [inline]
 #2: ffff8880435cc368 (&dev_addr_list_lock_key#6/2){+...}-{3:3}, at: dev_uc_add+0x67/0x120 net/core/dev_addr_lists.c:689
Preemption disabled at:
[<ffffffff893d6ab6>] local_bh_disable include/linux/bottom_half.h:20 [inline]
[<ffffffff893d6ab6>] netif_addr_lock_bh include/linux/netdevice.h:4863 [inline]
[<ffffffff893d6ab6>] dev_uc_add+0x56/0x120 net/core/dev_addr_lists.c:689
CPU: 1 UID: 0 PID: 11525 Comm: syz.5.1589 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 __might_resched+0x495/0x610 kernel/sched/core.c:8827
 __mutex_lock_common kernel/locking/mutex.c:591 [inline]
 __mutex_lock+0x109/0x1350 kernel/locking/mutex.c:776
 netdev_lock include/linux/netdevice.h:2781 [inline]
 netdev_lock_ops include/net/netdev_lock.h:42 [inline]
 dev_set_promiscuity+0x10e/0x260 net/core/dev_api.c:286
 team_change_rx_flags+0x124/0x240 drivers/net/team/team_core.c:1734
 dev_change_rx_flags net/core/dev.c:9517 [inline]
 __dev_set_promiscuity+0x514/0x710 net/core/dev.c:9561
 netif_set_promiscuity+0x50/0xe0 net/core/dev.c:9581
 dev_set_promiscuity+0x126/0x260 net/core/dev_api.c:287
 br_port_set_promisc net/bridge/br_if.c:108 [inline]
 br_manage_promisc+0x180/0x560 net/bridge/br_if.c:157
 dev_change_rx_flags net/core/dev.c:9517 [inline]
 __dev_set_promiscuity+0x514/0x710 net/core/dev.c:9561
 __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:3557
 __dev_open+0x42a/0x800 net/core/dev.c:1683
 __dev_change_flags+0x1f7/0x680 net/core/dev.c:9734
 rtnl_configure_link net/core/rtnetlink.c:3594 [inline]
 rtnl_newlink_create+0x555/0xb00 net/core/rtnetlink.c:3850
 __rtnl_newlink net/core/rtnetlink.c:3957 [inline]
 rtnl_newlink+0x16e7/0x1c90 net/core/rtnetlink.c:4072
 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6958
 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:742
 ____sys_sendmsg+0x505/0x820 net/socket.c:2592
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2646
 __sys_sendmsg net/socket.c:2678 [inline]
 __do_sys_sendmsg net/socket.c:2683 [inline]
 __se_sys_sendmsg net/socket.c:2681 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2681
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f219e38f749
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:00007f219f26e038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f219e5e5fa0 RCX: 00007f219e38f749
RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000003
RBP: 00007f219e413f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f219e5e6038 R14: 00007f219e5e5fa0 R15: 00007ffc56251238
 </TASK>

=============================
[ BUG: Invalid wait context ]
syzkaller #0 Tainted: G        W          
-----------------------------
syz.5.1589/11525 is trying to lock:
ffff8880293ded38 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2781 [inline]
ffff8880293ded38 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:42 [inline]
ffff8880293ded38 (&dev_instance_lock_key#3){+.+.}-{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.5.1589/11525:
 #0: ffffffff8f825c60 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #0: ffffffff8f825c60 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:867 [inline]
 #0: ffffffff8f825c60 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250 net/core/rtnetlink.c:570
 #1: ffffffff8f311c88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
 #1: ffffffff8f311c88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
 #1: ffffffff8f311c88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8ec/0x1c90 net/core/rtnetlink.c:4071
 #2: ffff8880435cc368 (&dev_addr_list_lock_key#6/2){+...}-{3:3}, at: netif_addr_lock_bh include/linux/netdevice.h:4864 [inline]
 #2: ffff8880435cc368 (&dev_addr_list_lock_key#6/2){+...}-{3:3}, at: dev_uc_add+0x67/0x120 net/core/dev_addr_lists.c:689
stack backtrace:
CPU: 1 UID: 0 PID: 11525 Comm: syz.5.1589 Tainted: G        W           syzkaller #0 PREEMPT(full) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 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+0xec2/0x2cf0 kernel/locking/lockdep.c:5187
 lock_acquire+0x117/0x340 kernel/locking/lockdep.c:5868
 __mutex_lock_common kernel/locking/mutex.c:614 [inline]
 __mutex_lock+0x187/0x1350 kernel/locking/mutex.c:776
 netdev_lock include/linux/netdevice.h:2781 [inline]
 netdev_lock_ops include/net/netdev_lock.h:42 [inline]
 dev_set_promiscuity+0x10e/0x260 net/core/dev_api.c:286
 team_change_rx_flags+0x124/0x240 drivers/net/team/team_core.c:1734
 dev_change_rx_flags net/core/dev.c:9517 [inline]
 __dev_set_promiscuity+0x514/0x710 net/core/dev.c:9561
 netif_set_promiscuity+0x50/0xe0 net/core/dev.c:9581
 dev_set_promiscuity+0x126/0x260 net/core/dev_api.c:287
 br_port_set_promisc net/bridge/br_if.c:108 [inline]
 br_manage_promisc+0x180/0x560 net/bridge/br_if.c:157
 dev_change_rx_flags net/core/dev.c:9517 [inline]
 __dev_set_promiscuity+0x514/0x710 net/core/dev.c:9561
 __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:3557
 __dev_open+0x42a/0x800 net/core/dev.c:1683
 __dev_change_flags+0x1f7/0x680 net/core/dev.c:9734
 rtnl_configure_link net/core/rtnetlink.c:3594 [inline]
 rtnl_newlink_create+0x555/0xb00 net/core/rtnetlink.c:3850
 __rtnl_newlink net/core/rtnetlink.c:3957 [inline]
 rtnl_newlink+0x16e7/0x1c90 net/core/rtnetlink.c:4072
 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6958
 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:742
 ____sys_sendmsg+0x505/0x820 net/socket.c:2592
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2646
 __sys_sendmsg net/socket.c:2678 [inline]
 __do_sys_sendmsg net/socket.c:2683 [inline]
 __se_sys_sendmsg net/socket.c:2681 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2681
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f219e38f749
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:00007f219f26e038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f219e5e5fa0 RCX: 00007f219e38f749
RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000003
RBP: 00007f219e413f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f219e5e6038 R14: 00007f219e5e5fa0 R15: 00007ffc56251238
 </TASK>
macsec1: entered promiscuous mode
macsec1: entered allmulticast mode
bridge0: entered allmulticast mode
bridge0: port 2(macsec1) entered blocking state
bridge0: port 2(macsec1) entered disabled state
bridge0: left allmulticast mode
bridge0: left promiscuous mode
team0: left promiscuous mode
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:591
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 11525, name: syz.5.1589
preempt_count: 201, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
Preemption disabled at:
[<ffffffff893d6be6>] local_bh_disable include/linux/bottom_half.h:20 [inline]
[<ffffffff893d6be6>] netif_addr_lock_bh include/linux/netdevice.h:4863 [inline]
[<ffffffff893d6be6>] dev_uc_del+0x56/0x110 net/core/dev_addr_lists.c:711
CPU: 0 UID: 0 PID: 11525 Comm: syz.5.1589 Tainted: G        W           syzkaller #0 PREEMPT(full) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 __might_resched+0x495/0x610 kernel/sched/core.c:8827
 __mutex_lock_common kernel/locking/mutex.c:591 [inline]
 __mutex_lock+0x109/0x1350 kernel/locking/mutex.c:776
 netdev_lock include/linux/netdevice.h:2781 [inline]
 netdev_lock_ops include/net/netdev_lock.h:42 [inline]
 dev_set_promiscuity+0x10e/0x260 net/core/dev_api.c:286
 team_change_rx_flags+0x124/0x240 drivers/net/team/team_core.c:1734
 dev_change_rx_flags net/core/dev.c:9517 [inline]
 __dev_set_promiscuity+0x514/0x710 net/core/dev.c:9561
 netif_set_promiscuity+0x50/0xe0 net/core/dev.c:9581
 dev_set_promiscuity+0x126/0x260 net/core/dev_api.c:287
 br_port_clear_promisc net/bridge/br_if.c:135 [inline]
 br_manage_promisc+0x4db/0x560 net/bridge/br_if.c:172
 dev_change_rx_flags net/core/dev.c:9517 [inline]
 __dev_set_promiscuity+0x514/0x710 net/core/dev.c:9561
 __dev_set_rx_mode+0x17c/0x260 net/core/dev.c:-1
 dev_uc_del+0xc0/0x110 net/core/dev_addr_lists.c:715
 macsec_dev_stop+0x2b6/0x380 drivers/net/macsec.c:3631
 __dev_close_many+0x344/0x6b0 net/core/dev.c:1756
 netif_close_many+0x225/0x410 net/core/dev.c:1781
 unregister_netdevice_many_notify+0xb50/0x2340 net/core/dev.c:12351
 rtnl_newlink_create+0x802/0xb00 net/core/rtnetlink.c:3868
 __rtnl_newlink net/core/rtnetlink.c:3957 [inline]
 rtnl_newlink+0x16e7/0x1c90 net/core/rtnetlink.c:4072
 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6958
 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:742
 ____sys_sendmsg+0x505/0x820 net/socket.c:2592
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2646
 __sys_sendmsg net/socket.c:2678 [inline]
 __do_sys_sendmsg net/socket.c:2683 [inline]
 __se_sys_sendmsg net/socket.c:2681 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2681
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f219e38f749
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:00007f219f26e038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f219e5e5fa0 RCX: 00007f219e38f749
RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000003
RBP: 00007f219e413f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f219e5e6038 R14: 00007f219e5e5fa0 R15: 00007ffc56251238
 </TASK>