bridge0: port 3(team0) entered blocking state bridge0: port 3(team0) entered disabled state team0: entered allmulticast mode team_slave_0: entered allmulticast mode team_slave_1: entered allmulticast mode BUG: sleeping function called from invalid context at kernel/locking/mutex.c:578 in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 14612, name: syz.1.4148 preempt_count: 0, expected: 0 RCU nest depth: 1, expected: 0 2 locks held by syz.1.4148/14612: #0: ffffffff9012b0e8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline] #0: ffffffff9012b0e8 (rtnl_mutex){+.+.}-{4:4}, at: dev_ioctl+0x1a1/0x10e0 net/core/dev_ioctl.c:847 #1: ffffffff8e3bf5c0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #1: ffffffff8e3bf5c0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #1: ffffffff8e3bf5c0 (rcu_read_lock){....}-{1:3}, at: team_change_rx_flags+0x33/0x390 drivers/net/team/team_core.c:1781 CPU: 0 UID: 0 PID: 14612 Comm: syz.1.4148 Not tainted 6.15.0-rc3-syzkaller-00032-ga79be02bba5c #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __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:8818 __mutex_lock_common kernel/locking/mutex.c:578 [inline] __mutex_lock+0x106/0xb90 kernel/locking/mutex.c:746 netdev_lock include/linux/netdevice.h:2751 [inline] netdev_lock_ops include/net/netdev_lock.h:42 [inline] netdev_lock_ops include/net/netdev_lock.h:39 [inline] dev_set_allmulti+0xa2/0x260 net/core/dev_api.c:288 team_change_rx_flags+0x1bc/0x390 drivers/net/team/team_core.c:1789 dev_change_rx_flags net/core/dev.c:9145 [inline] netif_set_allmulti+0x203/0x3d0 net/core/dev.c:9247 dev_set_allmulti+0xb7/0x260 net/core/dev_api.c:289 br_add_if+0x6ad/0x1b70 net/bridge/br_if.c:605 add_del_if+0x114/0x160 net/bridge/br_ioctl.c:99 br_dev_siocdevprivate+0x908/0x1650 net/bridge/br_ioctl.c:160 dev_siocdevprivate net/core/dev_ioctl.c:521 [inline] dev_ifsioc+0x8eb/0x1f70 net/core/dev_ioctl.c:631 dev_ioctl+0x1b2/0x10e0 net/core/dev_ioctl.c:848 sock_ioctl+0x5b3/0x6b0 net/socket.c:1236 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl fs/ioctl.c:892 [inline] __x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd7d998e969 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:00007fd7da837038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fd7d9bb5fa0 RCX: 00007fd7d998e969 RDX: 0000200000001440 RSI: 00000000000089f0 RDI: 0000000000000003 RBP: 00007fd7d9a10ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fd7d9bb5fa0 R15: 00007ffe86e76758 ============================= [ BUG: Invalid wait context ] 6.15.0-rc3-syzkaller-00032-ga79be02bba5c #0 Tainted: G W ----------------------------- syz.1.4148/14612 is trying to lock: ffff888036a8ed30 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2751 [inline] ffff888036a8ed30 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:42 [inline] ffff888036a8ed30 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:39 [inline] ffff888036a8ed30 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: dev_set_allmulti+0xa2/0x260 net/core/dev_api.c:288 other info that might help us debug this: context-{5:5} 2 locks held by syz.1.4148/14612: #0: ffffffff9012b0e8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline] #0: ffffffff9012b0e8 (rtnl_mutex){+.+.}-{4:4}, at: dev_ioctl+0x1a1/0x10e0 net/core/dev_ioctl.c:847 #1: ffffffff8e3bf5c0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #1: ffffffff8e3bf5c0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #1: ffffffff8e3bf5c0 (rcu_read_lock){....}-{1:3}, at: team_change_rx_flags+0x33/0x390 drivers/net/team/team_core.c:1781 stack backtrace: CPU: 0 UID: 0 PID: 14612 Comm: syz.1.4148 Tainted: G W 6.15.0-rc3-syzkaller-00032-ga79be02bba5c #0 PREEMPT(full) Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __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:4831 [inline] check_wait_context kernel/locking/lockdep.c:4903 [inline] __lock_acquire+0x3ff/0x1ba0 kernel/locking/lockdep.c:5185 lock_acquire kernel/locking/lockdep.c:5866 [inline] lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5823 __mutex_lock_common kernel/locking/mutex.c:601 [inline] __mutex_lock+0x199/0xb90 kernel/locking/mutex.c:746 netdev_lock include/linux/netdevice.h:2751 [inline] netdev_lock_ops include/net/netdev_lock.h:42 [inline] netdev_lock_ops include/net/netdev_lock.h:39 [inline] dev_set_allmulti+0xa2/0x260 net/core/dev_api.c:288 team_change_rx_flags+0x1bc/0x390 drivers/net/team/team_core.c:1789 dev_change_rx_flags net/core/dev.c:9145 [inline] netif_set_allmulti+0x203/0x3d0 net/core/dev.c:9247 dev_set_allmulti+0xb7/0x260 net/core/dev_api.c:289 br_add_if+0x6ad/0x1b70 net/bridge/br_if.c:605 add_del_if+0x114/0x160 net/bridge/br_ioctl.c:99 br_dev_siocdevprivate+0x908/0x1650 net/bridge/br_ioctl.c:160 dev_siocdevprivate net/core/dev_ioctl.c:521 [inline] dev_ifsioc+0x8eb/0x1f70 net/core/dev_ioctl.c:631 dev_ioctl+0x1b2/0x10e0 net/core/dev_ioctl.c:848 sock_ioctl+0x5b3/0x6b0 net/socket.c:1236 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl fs/ioctl.c:892 [inline] __x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd7d998e969 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:00007fd7da837038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fd7d9bb5fa0 RCX: 00007fd7d998e969 RDX: 0000200000001440 RSI: 00000000000089f0 RDI: 0000000000000003 RBP: 00007fd7d9a10ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fd7d9bb5fa0 R15: 00007ffe86e76758 dummy0: entered allmulticast mode team0: entered promiscuous mode team_slave_0: entered promiscuous mode team_slave_1: entered promiscuous mode dummy0: entered promiscuous mode bridge0: port 3(team0) entered blocking state bridge0: port 3(team0) entered forwarding state