bridge0: entered promiscuous mode team0: 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: 3467, name: syz.0.8478 preempt_count: 201, expected: 0 RCU nest depth: 0, expected: 0 3 locks held by syz.0.8478/3467: #0: ffffffff8ec80cc0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #0: ffffffff8ec80cc0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #0: ffffffff8ec80cc0 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250 net/core/rtnetlink.c:570 #1: ffffffff8f5101c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #1: ffffffff8f5101c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline] #1: ffffffff8f5101c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8db/0x1c70 net/core/rtnetlink.c:4054 #2: ffff888076168368 (&dev_addr_list_lock_key#6/2){+...}-{3:3}, at: netif_addr_lock_bh include/linux/netdevice.h:4805 [inline] #2: ffff888076168368 (&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: [] 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: 3467 Comm: syz.0.8478 Not tainted 6.16.0-rc1-syzkaller-00236-g8c6bc74c7f89 #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 team_change_rx_flags+0x38/0x220 drivers/net/team/team_core.c:1781 dev_change_rx_flags net/core/dev.c:9241 [inline] __dev_set_promiscuity+0x531/0x740 net/core/dev.c:9285 netif_set_promiscuity+0x50/0xe0 net/core/dev.c:9305 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:9241 [inline] __dev_set_promiscuity+0x531/0x740 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 macvlan_open+0x446/0x8e0 drivers/net/macvlan.c:647 __dev_open+0x46d/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+0x7cf/0xb70 net/core/rtnetlink.c:6944 netlink_rcv_skb+0x205/0x470 net/netlink/af_netlink.c:2534 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] netlink_unicast+0x758/0x8d0 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x21c/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: 0033:0x7fcc1598e929 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:00007fcc16764038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fcc15bb6080 RCX: 00007fcc1598e929 RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000011 RBP: 00007fcc15a10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fcc15bb6080 R15: 00007fcc15cdfa28 ============================= [ BUG: Invalid wait context ] 6.16.0-rc1-syzkaller-00236-g8c6bc74c7f89 #0 Tainted: G W ----------------------------- syz.0.8478/3467 is trying to lock: ffff888028424e00 (team->team_lock_key#13){+.+.}-{4:4}, at: team_change_rx_flags+0x38/0x220 drivers/net/team/team_core.c:1781 other info that might help us debug this: context-{5:5} 3 locks held by syz.0.8478/3467: #0: ffffffff8ec80cc0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #0: ffffffff8ec80cc0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #0: ffffffff8ec80cc0 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250 net/core/rtnetlink.c:570 #1: ffffffff8f5101c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #1: ffffffff8f5101c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline] #1: ffffffff8f5101c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8db/0x1c70 net/core/rtnetlink.c:4054 #2: ffff888076168368 (&dev_addr_list_lock_key#6/2){+...}-{3:3}, at: netif_addr_lock_bh include/linux/netdevice.h:4805 [inline] #2: ffff888076168368 (&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: 3467 Comm: syz.0.8478 Tainted: G W 6.16.0-rc1-syzkaller-00236-g8c6bc74c7f89 #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 team_change_rx_flags+0x38/0x220 drivers/net/team/team_core.c:1781 dev_change_rx_flags net/core/dev.c:9241 [inline] __dev_set_promiscuity+0x531/0x740 net/core/dev.c:9285 netif_set_promiscuity+0x50/0xe0 net/core/dev.c:9305 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:9241 [inline] __dev_set_promiscuity+0x531/0x740 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 macvlan_open+0x446/0x8e0 drivers/net/macvlan.c:647 __dev_open+0x46d/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+0x7cf/0xb70 net/core/rtnetlink.c:6944 netlink_rcv_skb+0x205/0x470 net/netlink/af_netlink.c:2534 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] netlink_unicast+0x758/0x8d0 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x21c/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: 0033:0x7fcc1598e929 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:00007fcc16764038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fcc15bb6080 RCX: 00007fcc1598e929 RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000011 RBP: 00007fcc15a10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fcc15bb6080 R15: 00007fcc15cdfa28 macvlan2: entered promiscuous mode bridge0: port 2(macvlan2) entered blocking state bridge0: port 2(macvlan2) entered disabled state macvlan2: entered allmulticast mode bridge0: entered allmulticast mode macvlan2: 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:579 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 3467, name: syz.0.8478 preempt_count: 201, expected: 0 RCU nest depth: 0, expected: 0 INFO: lockdep is turned off. 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_del+0x56/0x110 net/core/dev_addr_lists.c:711 CPU: 1 UID: 0 PID: 3467 Comm: syz.0.8478 Tainted: G W 6.16.0-rc1-syzkaller-00236-g8c6bc74c7f89 #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 __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 team_change_rx_flags+0x38/0x220 drivers/net/team/team_core.c:1781 dev_change_rx_flags net/core/dev.c:9241 [inline] __dev_set_promiscuity+0x531/0x740 net/core/dev.c:9285 netif_set_promiscuity+0x50/0xe0 net/core/dev.c:9305 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:9241 [inline] __dev_set_promiscuity+0x531/0x740 net/core/dev.c:9285 __dev_set_rx_mode+0x17c/0x260 net/core/dev.c:-1 dev_uc_del+0xc0/0x110 net/core/dev_addr_lists.c:715 macvlan_stop+0x259/0x3e0 drivers/net/macvlan.c:709 __dev_close_many+0x361/0x6f0 net/core/dev.c:1756 dev_close_many+0x225/0x410 net/core/dev.c:1781 unregister_netdevice_many_notify+0x834/0x2320 net/core/dev.c:12047 rtnl_newlink_create+0x802/0xb00 net/core/rtnetlink.c:3851 __rtnl_newlink net/core/rtnetlink.c:3940 [inline] rtnl_newlink+0x16d6/0x1c70 net/core/rtnetlink.c:4055 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6944 netlink_rcv_skb+0x205/0x470 net/netlink/af_netlink.c:2534 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] netlink_unicast+0x758/0x8d0 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x21c/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: 0033:0x7fcc1598e929 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:00007fcc16764038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fcc15bb6080 RCX: 00007fcc1598e929 RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000011 RBP: 00007fcc15a10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fcc15bb6080 R15: 00007fcc15cdfa28