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: 10227, name: syz.0.1635
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
2 locks held by syz.0.1635/10227:
 #0: ffffffff9012d9a8 (rtnl_mutex){+.+.}-{4:4}, at: ip6_mroute_setsockopt+0x8c1/0x20d0 net/ipv6/ip6mr.c:1725
 #1: ffffffff8e3c1580 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #1: ffffffff8e3c1580 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #1: ffffffff8e3c1580 (rcu_read_lock){....}-{1:3}, at: team_change_rx_flags+0x33/0x390 drivers/net/team/team_core.c:1781
CPU: 0 UID: 0 PID: 10227 Comm: syz.0.1635 Not tainted 6.14.0-syzkaller-13423-ga8662bcd2ff1 #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+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:9152 [inline]
 netif_set_allmulti+0x206/0x3d0 net/core/dev.c:9254
 dev_set_allmulti+0xb7/0x260 net/core/dev_api.c:289
 mif6_add net/ipv6/ip6mr.c:927 [inline]
 ip6_mroute_setsockopt+0x19dc/0x20d0 net/ipv6/ip6mr.c:1726
 do_ipv6_setsockopt+0x7b1/0x4420 net/ipv6/ipv6_sockglue.c:415
 ipv6_setsockopt+0xcb/0x170 net/ipv6/ipv6_sockglue.c:993
 rawv6_setsockopt+0xc2/0x510 net/ipv6/raw.c:1046
 do_sock_setsockopt+0x224/0x470 net/socket.c:2296
 __sys_setsockopt+0x1a0/0x230 net/socket.c:2321
 __do_sys_setsockopt net/socket.c:2327 [inline]
 __se_sys_setsockopt net/socket.c:2324 [inline]
 __x64_sys_setsockopt+0xbd/0x160 net/socket.c:2324
 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: 0033:0x7f3e2458d169
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:00007f3e254c7038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f3e247a5fa0 RCX: 00007f3e2458d169
RDX: 00000000000000ca RSI: 0000000000000029 RDI: 0000000000000003
RBP: 00007f3e2460e2a0 R08: 000000000000000c R09: 0000000000000000
R10: 00002000000000c0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3e247a5fa0 R15: 00007ffdd656e458
 </TASK>

=============================
[ BUG: Invalid wait context ]
6.14.0-syzkaller-13423-ga8662bcd2ff1 #0 Tainted: G        W          
-----------------------------
syz.0.1635/10227 is trying to lock:
ffff888071900d30 (&dev_instance_lock_key#20){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2751 [inline]
ffff888071900d30 (&dev_instance_lock_key#20){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:42 [inline]
ffff888071900d30 (&dev_instance_lock_key#20){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:39 [inline]
ffff888071900d30 (&dev_instance_lock_key#20){+.+.}-{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.0.1635/10227:
 #0: ffffffff9012d9a8 (rtnl_mutex){+.+.}-{4:4}, at: ip6_mroute_setsockopt+0x8c1/0x20d0 net/ipv6/ip6mr.c:1725
 #1: ffffffff8e3c1580 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #1: ffffffff8e3c1580 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #1: ffffffff8e3c1580 (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: 10227 Comm: syz.0.1635 Tainted: G        W           6.14.0-syzkaller-13423-ga8662bcd2ff1 #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+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:9152 [inline]
 netif_set_allmulti+0x206/0x3d0 net/core/dev.c:9254
 dev_set_allmulti+0xb7/0x260 net/core/dev_api.c:289
 mif6_add net/ipv6/ip6mr.c:927 [inline]
 ip6_mroute_setsockopt+0x19dc/0x20d0 net/ipv6/ip6mr.c:1726
 do_ipv6_setsockopt+0x7b1/0x4420 net/ipv6/ipv6_sockglue.c:415
 ipv6_setsockopt+0xcb/0x170 net/ipv6/ipv6_sockglue.c:993
 rawv6_setsockopt+0xc2/0x510 net/ipv6/raw.c:1046
 do_sock_setsockopt+0x224/0x470 net/socket.c:2296
 __sys_setsockopt+0x1a0/0x230 net/socket.c:2321
 __do_sys_setsockopt net/socket.c:2327 [inline]
 __se_sys_setsockopt net/socket.c:2324 [inline]
 __x64_sys_setsockopt+0xbd/0x160 net/socket.c:2324
 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: 0033:0x7f3e2458d169
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:00007f3e254c7038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f3e247a5fa0 RCX: 00007f3e2458d169
RDX: 00000000000000ca RSI: 0000000000000029 RDI: 0000000000000003
RBP: 00007f3e2460e2a0 R08: 000000000000000c R09: 0000000000000000
R10: 00002000000000c0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3e247a5fa0 R15: 00007ffdd656e458
 </TASK>
netdevsim netdevsim0 netdevsim0: entered allmulticast mode