syzbot

batman_adv: batadv0: Removing interface: team0
bridge0: port 2(team0) entered blocking state
bridge0: port 2(team0) entered disabled state
team0: entered allmulticast mode
bond0: entered allmulticast mode
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:564
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 9351, name: syz.4.14986
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
2 locks held by syz.4.14986/9351:
 #0: ffffffff900e59c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
 #0: ffffffff900e59c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
 #0: ffffffff900e59c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xd68/0x1fe0 net/core/rtnetlink.c:4061
 #1: ffffffff8ed3b560 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #1: ffffffff8ed3b560 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #1: ffffffff8ed3b560 (rcu_read_lock){....}-{1:3}, at: team_change_rx_flags+0x29/0x330 drivers/net/team/team_core.c:1781
CPU: 1 UID: 0 PID: 9351 Comm: syz.4.14986 Not tainted 6.14.0-syzkaller-11270-g08733088b566 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 __might_resched+0x558/0x6c0 kernel/sched/core.c:8818
 __mutex_lock_common kernel/locking/mutex.c:564 [inline]
 __mutex_lock+0x12c/0x10c0 kernel/locking/mutex.c:732
 netdev_lock include/linux/netdevice.h:2751 [inline]
 netdev_lock_ops include/net/netdev_lock.h:42 [inline]
 dev_set_allmulti+0x11c/0x270 net/core/dev_api.c:294
 bond_set_allmulti drivers/net/bonding/bond_main.c:940 [inline]
 bond_change_rx_flags+0x532/0x740 drivers/net/bonding/bond_main.c:4731
 dev_change_rx_flags net/core/dev.c:9149 [inline]
 netif_set_allmulti+0x20e/0x380 net/core/dev.c:9251
 dev_set_allmulti+0x143/0x270 net/core/dev_api.c:295
 team_change_rx_flags+0x1a8/0x330 drivers/net/team/team_core.c:1789
 dev_change_rx_flags net/core/dev.c:9149 [inline]
 netif_set_allmulti+0x20e/0x380 net/core/dev.c:9251
 dev_set_allmulti+0x143/0x270 net/core/dev_api.c:295
 br_add_if+0x317/0xef0 net/bridge/br_if.c:605
 do_set_master+0x579/0x730 net/core/rtnetlink.c:2943
 do_setlink+0x1120/0x4370 net/core/rtnetlink.c:3156
 rtnl_changelink net/core/rtnetlink.c:3766 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3925 [inline]
 rtnl_newlink+0x17e2/0x1fe0 net/core/rtnetlink.c:4062
 rtnetlink_rcv_msg+0x80f/0xd70 net/core/rtnetlink.c:6952
 netlink_rcv_skb+0x208/0x480 net/netlink/af_netlink.c:2534
 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
 netlink_unicast+0x7f8/0x9a0 net/netlink/af_netlink.c:1339
 netlink_sendmsg+0x8c3/0xcd0 net/netlink/af_netlink.c:1883
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:727
 ____sys_sendmsg+0x523/0x860 net/socket.c:2566
 ___sys_sendmsg net/socket.c:2620 [inline]
 __sys_sendmsg+0x271/0x360 net/socket.c:2652
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcdb438d169
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:00007fcdb516d038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fcdb45a5fa0 RCX: 00007fcdb438d169
RDX: 0000000000000000 RSI: 0000200000000100 RDI: 0000000000000003
RBP: 00007fcdb440e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fcdb45a5fa0 R15: 00007ffebe9f7518
 </TASK>

=============================
[ BUG: Invalid wait context ]
6.14.0-syzkaller-11270-g08733088b566 #0 Tainted: G        W          
-----------------------------
syz.4.14986/9351 is trying to lock:
ffff88805b9a8d30 (&dev->lock){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2751 [inline]
ffff88805b9a8d30 (&dev->lock){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:42 [inline]
ffff88805b9a8d30 (&dev->lock){+.+.}-{4:4}, at: dev_set_allmulti+0x11c/0x270 net/core/dev_api.c:294
other info that might help us debug this:
context-{5:5}
2 locks held by syz.4.14986/9351:
 #0: ffffffff900e59c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
 #0: ffffffff900e59c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
 #0: ffffffff900e59c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xd68/0x1fe0 net/core/rtnetlink.c:4061
 #1: ffffffff8ed3b560 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #1: ffffffff8ed3b560 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #1: ffffffff8ed3b560 (rcu_read_lock){....}-{1:3}, at: team_change_rx_flags+0x29/0x330 drivers/net/team/team_core.c:1781
stack backtrace:
CPU: 1 UID: 0 PID: 9351 Comm: syz.4.14986 Tainted: G        W           6.14.0-syzkaller-11270-g08733088b566 #0 PREEMPT(full) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 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+0xc30/0xd80 kernel/locking/lockdep.c:5185
 lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866
 __mutex_lock_common kernel/locking/mutex.c:587 [inline]
 __mutex_lock+0x1a5/0x10c0 kernel/locking/mutex.c:732
 netdev_lock include/linux/netdevice.h:2751 [inline]
 netdev_lock_ops include/net/netdev_lock.h:42 [inline]
 dev_set_allmulti+0x11c/0x270 net/core/dev_api.c:294
 bond_set_allmulti drivers/net/bonding/bond_main.c:940 [inline]
 bond_change_rx_flags+0x532/0x740 drivers/net/bonding/bond_main.c:4731
 dev_change_rx_flags net/core/dev.c:9149 [inline]
 netif_set_allmulti+0x20e/0x380 net/core/dev.c:9251
 dev_set_allmulti+0x143/0x270 net/core/dev_api.c:295
 team_change_rx_flags+0x1a8/0x330 drivers/net/team/team_core.c:1789
 dev_change_rx_flags net/core/dev.c:9149 [inline]
 netif_set_allmulti+0x20e/0x380 net/core/dev.c:9251
 dev_set_allmulti+0x143/0x270 net/core/dev_api.c:295
 br_add_if+0x317/0xef0 net/bridge/br_if.c:605
 do_set_master+0x579/0x730 net/core/rtnetlink.c:2943
 do_setlink+0x1120/0x4370 net/core/rtnetlink.c:3156
 rtnl_changelink net/core/rtnetlink.c:3766 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3925 [inline]
 rtnl_newlink+0x17e2/0x1fe0 net/core/rtnetlink.c:4062
 rtnetlink_rcv_msg+0x80f/0xd70 net/core/rtnetlink.c:6952
 netlink_rcv_skb+0x208/0x480 net/netlink/af_netlink.c:2534
 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
 netlink_unicast+0x7f8/0x9a0 net/netlink/af_netlink.c:1339
 netlink_sendmsg+0x8c3/0xcd0 net/netlink/af_netlink.c:1883
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:727
 ____sys_sendmsg+0x523/0x860 net/socket.c:2566
 ___sys_sendmsg net/socket.c:2620 [inline]
 __sys_sendmsg+0x271/0x360 net/socket.c:2652
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcdb438d169
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:00007fcdb516d038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fcdb45a5fa0 RCX: 00007fcdb438d169
RDX: 0000000000000000 RSI: 0000200000000100 RDI: 0000000000000003
RBP: 00007fcdb440e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fcdb45a5fa0 R15: 00007ffebe9f7518
 </TASK>
netdevsim netdevsim4 netdevsim0: entered allmulticast mode
dummy0: entered allmulticast mode
bridge0: port 2(team0) entered blocking state
bridge0: port 2(team0) entered forwarding state