sit0: entered allmulticast mode ip6tnl0: entered allmulticast mode ip6gre0: entered allmulticast mode ip6gretap0: entered allmulticast mode team0: 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: 7282, name: syz.3.2243 preempt_count: 0, expected: 0 RCU nest depth: 1, expected: 0 2 locks held by syz.3.2243/7282: #0: ffffffff8f2fa848 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #0: ffffffff8f2fa848 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline] #0: ffffffff8f2fa848 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8db/0x1c70 net/core/rtnetlink.c:4064 #1: ffffffff8df3dee0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #1: ffffffff8df3dee0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #1: ffffffff8df3dee0 (rcu_read_lock){....}-{1:3}, at: team_change_rx_flags+0x29/0x330 drivers/net/team/team_core.c:1781 CPU: 0 UID: 0 PID: 7282 Comm: syz.3.2243 Not tainted 6.15.0-rc7-syzkaller #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:8818 __mutex_lock_common kernel/locking/mutex.c:578 [inline] __mutex_lock+0x106/0xe80 kernel/locking/mutex.c:746 netdev_lock include/linux/netdevice.h:2751 [inline] netdev_lock_ops include/net/netdev_lock.h:42 [inline] dev_set_allmulti+0x10e/0x260 net/core/dev_api.c:311 team_change_rx_flags+0x20f/0x330 drivers/net/team/team_core.c:1789 dev_change_rx_flags net/core/dev.c:9145 [inline] netif_set_allmulti+0x212/0x380 net/core/dev.c:9235 __dev_change_flags+0x52e/0x6d0 net/core/dev.c:9376 netif_change_flags+0x88/0x1a0 net/core/dev.c:9417 do_setlink+0xcb9/0x40d0 net/core/rtnetlink.c:3152 rtnl_group_changelink net/core/rtnetlink.c:3783 [inline] __rtnl_newlink net/core/rtnetlink.c:3937 [inline] rtnl_newlink+0x149f/0x1c70 net/core/rtnetlink.c:4065 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6955 netlink_rcv_skb+0x21c/0x490 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+0x219/0x270 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+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f01f438e969 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:00007f01f5162038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f01f45b5fa0 RCX: 00007f01f438e969 RDX: 0000000000000000 RSI: 0000200000000140 RDI: 0000000000000007 RBP: 00007f01f4410ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f01f45b5fa0 R15: 00007f01f46dfa28 ============================= [ BUG: Invalid wait context ] 6.15.0-rc7-syzkaller #0 Tainted: G W ----------------------------- syz.3.2243/7282 is trying to lock: ffff88805cc0ed30 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2751 [inline] ffff88805cc0ed30 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:42 [inline] ffff88805cc0ed30 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: dev_set_allmulti+0x10e/0x260 net/core/dev_api.c:311 other info that might help us debug this: context-{5:5} 2 locks held by syz.3.2243/7282: #0: ffffffff8f2fa848 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #0: ffffffff8f2fa848 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline] #0: ffffffff8f2fa848 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8db/0x1c70 net/core/rtnetlink.c:4064 #1: ffffffff8df3dee0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #1: ffffffff8df3dee0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #1: ffffffff8df3dee0 (rcu_read_lock){....}-{1:3}, at: team_change_rx_flags+0x29/0x330 drivers/net/team/team_core.c:1781 stack backtrace: CPU: 0 UID: 0 PID: 7282 Comm: syz.3.2243 Tainted: G W 6.15.0-rc7-syzkaller #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:4831 [inline] check_wait_context kernel/locking/lockdep.c:4903 [inline] __lock_acquire+0xbcf/0xd20 kernel/locking/lockdep.c:5185 lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866 __mutex_lock_common kernel/locking/mutex.c:601 [inline] __mutex_lock+0x182/0xe80 kernel/locking/mutex.c:746 netdev_lock include/linux/netdevice.h:2751 [inline] netdev_lock_ops include/net/netdev_lock.h:42 [inline] dev_set_allmulti+0x10e/0x260 net/core/dev_api.c:311 team_change_rx_flags+0x20f/0x330 drivers/net/team/team_core.c:1789 dev_change_rx_flags net/core/dev.c:9145 [inline] netif_set_allmulti+0x212/0x380 net/core/dev.c:9235 __dev_change_flags+0x52e/0x6d0 net/core/dev.c:9376 netif_change_flags+0x88/0x1a0 net/core/dev.c:9417 do_setlink+0xcb9/0x40d0 net/core/rtnetlink.c:3152 rtnl_group_changelink net/core/rtnetlink.c:3783 [inline] __rtnl_newlink net/core/rtnetlink.c:3937 [inline] rtnl_newlink+0x149f/0x1c70 net/core/rtnetlink.c:4065 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6955 netlink_rcv_skb+0x21c/0x490 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+0x219/0x270 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+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f01f438e969 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:00007f01f5162038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f01f45b5fa0 RCX: 00007f01f438e969 RDX: 0000000000000000 RSI: 0000200000000140 RDI: 0000000000000007 RBP: 00007f01f4410ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f01f45b5fa0 R15: 00007f01f46dfa28 dummy0: entered allmulticast mode nlmon0: entered allmulticast mode batadv0: entered allmulticast mode vxcan0: entered allmulticast mode vxcan1: entered allmulticast mode B: entered allmulticast mode veth1: entered allmulticast mode wg0: entered allmulticast mode wg1: left promiscuous mode wg2: entered allmulticast mode veth0_to_bridge: entered allmulticast mode bridge_slave_0: entered allmulticast mode veth1_to_bridge: entered allmulticast mode bridge_slave_1: entered allmulticast mode bond_slave_0: entered allmulticast mode veth1_to_bond: entered allmulticast mode bond_slave_1: entered allmulticast mode veth0_to_team: entered allmulticast mode team_slave_0: entered allmulticast mode veth1_to_team: entered allmulticast mode team_slave_1: entered allmulticast mode veth0_to_batadv: entered allmulticast mode batadv_slave_0: entered allmulticast mode veth1_to_batadv: entered allmulticast mode batadv_slave_1: entered allmulticast mode xfrm0: entered allmulticast mode veth0_to_hsr: entered allmulticast mode hsr_slave_0: entered allmulticast mode veth1_to_hsr: entered allmulticast mode hsr_slave_1: entered allmulticast mode hsr0: entered allmulticast mode veth1_virt_wifi: entered allmulticast mode veth0_virt_wifi: entered allmulticast mode net veth1_virt_wifi virt_wifi0: entered allmulticast mode veth1_vlan: entered allmulticast mode veth0_vlan: entered allmulticast mode vlan1: entered allmulticast mode macvlan1: entered allmulticast mode ipvlan0: entered allmulticast mode ipvlan1: entered allmulticast mode veth1_macvtap: entered allmulticast mode veth0_macvtap: entered allmulticast mode macvtap0: entered allmulticast mode macsec0: entered allmulticast mode geneve0: entered allmulticast mode geneve1: entered allmulticast mode netdevsim netdevsim3 netdevsim0: entered allmulticast mode netdevsim netdevsim3 netdevsim1: entered allmulticast mode netdevsim netdevsim3 netdevsim2: entered allmulticast mode netdevsim netdevsim3 netdevsim3: entered allmulticast mode mac80211_hwsim hwsim9 wlan0: entered allmulticast mode mac80211_hwsim hwsim12 wlan2: entered allmulticast mode bond1: entered allmulticast mode veth0: entered allmulticast mode veth2: entered allmulticast mode ip6gre1: entered allmulticast mode gtp0: entered allmulticast mode bridge0: entered allmulticast mode ip6erspan0: entered allmulticast mode tap0: entered allmulticast mode syztnl1: entered allmulticast mode mac80211_hwsim hwsim19 wlan3: entered allmulticast mode ip6erspan1: entered allmulticast mode ip6erspan2: entered allmulticast mode syztnl0: entered allmulticast mode vxlan0: entered allmulticast mode gre1: entered allmulticast mode bond2: entered allmulticast mode