team_slave_1: entered promiscuous mode dummy0: entered promiscuous mode 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: 14419, name: syz.2.19476 preempt_count: 0, expected: 0 RCU nest depth: 1, expected: 0 2 locks held by syz.2.19476/14419: #0: ffffffff9012cae8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #0: ffffffff9012cae8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline] #0: ffffffff9012cae8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x600/0x2000 net/core/rtnetlink.c:4064 #1: ffffffff8e3bf440 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #1: ffffffff8e3bf440 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #1: ffffffff8e3bf440 (rcu_read_lock){....}-{1:3}, at: team_change_rx_flags+0x33/0x390 drivers/net/team/team_core.c:1781 CPU: 1 UID: 0 PID: 14419 Comm: syz.2.19476 Not tainted 6.15.0-rc3-syzkaller-00032-ga79be02bba5c #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 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_change_flags+0x3d0/0x720 net/core/dev.c:9388 netif_change_flags+0x8d/0x160 net/core/dev.c:9429 do_setlink.constprop.0+0xddf/0x44b0 net/core/rtnetlink.c:3152 rtnl_group_changelink net/core/rtnetlink.c:3783 [inline] __rtnl_newlink net/core/rtnetlink.c:3937 [inline] rtnl_newlink+0x18e0/0x2000 net/core/rtnetlink.c:4065 rtnetlink_rcv_msg+0x95b/0xe90 net/core/rtnetlink.c:6955 netlink_rcv_skb+0x16a/0x440 net/netlink/af_netlink.c:2534 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] netlink_unicast+0x53a/0x7f0 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x8d1/0xdd0 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg net/socket.c:727 [inline] ____sys_sendmsg+0xa95/0xc70 net/socket.c:2566 ___sys_sendmsg+0x134/0x1d0 net/socket.c:2620 __sys_sendmsg+0x16d/0x220 net/socket.c:2652 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0x73/0x120 arch/x86/entry/syscall_32.c:306 do_fast_syscall_32+0x32/0x80 arch/x86/entry/syscall_32.c:331 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7fd3579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f50f655c EFLAGS: 00000296 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000140 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ============================= [ BUG: Invalid wait context ] 6.15.0-rc3-syzkaller-00032-ga79be02bba5c #0 Tainted: G W ----------------------------- syz.2.19476/14419 is trying to lock: ffff88805017cd30 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2751 [inline] ffff88805017cd30 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:42 [inline] ffff88805017cd30 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:39 [inline] ffff88805017cd30 (&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.2.19476/14419: #0: ffffffff9012cae8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #0: ffffffff9012cae8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline] #0: ffffffff9012cae8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x600/0x2000 net/core/rtnetlink.c:4064 #1: ffffffff8e3bf440 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #1: ffffffff8e3bf440 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #1: ffffffff8e3bf440 (rcu_read_lock){....}-{1:3}, at: team_change_rx_flags+0x33/0x390 drivers/net/team/team_core.c:1781 stack backtrace: CPU: 1 UID: 0 PID: 14419 Comm: syz.2.19476 Tainted: G W 6.15.0-rc3-syzkaller-00032-ga79be02bba5c #0 PREEMPT(full) Tainted: [W]=WARN Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 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_change_flags+0x3d0/0x720 net/core/dev.c:9388 netif_change_flags+0x8d/0x160 net/core/dev.c:9429 do_setlink.constprop.0+0xddf/0x44b0 net/core/rtnetlink.c:3152 rtnl_group_changelink net/core/rtnetlink.c:3783 [inline] __rtnl_newlink net/core/rtnetlink.c:3937 [inline] rtnl_newlink+0x18e0/0x2000 net/core/rtnetlink.c:4065 rtnetlink_rcv_msg+0x95b/0xe90 net/core/rtnetlink.c:6955 netlink_rcv_skb+0x16a/0x440 net/netlink/af_netlink.c:2534 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] netlink_unicast+0x53a/0x7f0 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x8d1/0xdd0 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg net/socket.c:727 [inline] ____sys_sendmsg+0xa95/0xc70 net/socket.c:2566 ___sys_sendmsg+0x134/0x1d0 net/socket.c:2620 __sys_sendmsg+0x16d/0x220 net/socket.c:2652 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0x73/0x120 arch/x86/entry/syscall_32.c:306 do_fast_syscall_32+0x32/0x80 arch/x86/entry/syscall_32.c:331 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7fd3579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f50f655c EFLAGS: 00000296 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000140 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 dummy0: entered allmulticast mode nlmon0: entered promiscuous mode nlmon0: entered allmulticast mode caif0: entered promiscuous mode caif0: entered allmulticast mode batadv0: entered promiscuous mode batadv0: entered allmulticast mode vxcan0: entered promiscuous mode vxcan0: entered allmulticast mode vxcan1: entered promiscuous mode vxcan1: entered allmulticast mode veth0: entered promiscuous mode veth0: entered allmulticast mode veth1: entered promiscuous mode veth1: entered allmulticast mode wg0: entered promiscuous mode wg0: entered allmulticast mode wg1: entered promiscuous mode wg1: entered allmulticast mode wg2: entered promiscuous mode wg2: entered allmulticast mode veth0_to_bridge: entered promiscuous mode veth0_to_bridge: entered allmulticast mode veth1_to_bridge: entered promiscuous mode veth1_to_bridge: entered allmulticast mode veth0_to_bond: entered promiscuous mode veth0_to_bond: entered allmulticast mode veth1_to_bond: entered promiscuous mode veth1_to_bond: entered allmulticast mode veth0_to_team: entered promiscuous mode veth0_to_team: entered allmulticast mode veth1_to_team: entered promiscuous mode veth1_to_team: entered allmulticast mode veth0_to_batadv: entered promiscuous mode veth0_to_batadv: entered allmulticast mode veth1_to_batadv: entered promiscuous mode veth1_to_batadv: entered allmulticast mode batman_adv: batadv0: Interface deactivated: batadv_slave_1 batadv_slave_1: entered promiscuous mode batadv_slave_1: entered allmulticast mode xfrm0: entered promiscuous mode xfrm0: entered allmulticast mode veth0_to_hsr: entered promiscuous mode veth0_to_hsr: entered allmulticast mode hsr_slave_0: entered allmulticast mode veth1_to_hsr: entered promiscuous mode veth1_to_hsr: entered allmulticast mode hsr_slave_1: entered allmulticast mode hsr0: entered promiscuous mode hsr0: entered allmulticast mode veth1_virt_wifi: entered promiscuous mode veth1_virt_wifi: entered allmulticast mode veth0_virt_wifi: entered promiscuous mode veth0_virt_wifi: entered allmulticast mode net veth1_virt_wifi virt_wifi0: entered promiscuous mode net veth1_virt_wifi virt_wifi0: entered allmulticast mode veth1_vlan: entered allmulticast mode veth0_vlan: entered allmulticast mode vlan0: entered promiscuous mode vlan0: entered allmulticast mode vlan1: entered promiscuous mode vlan1: entered allmulticast mode macvlan0: entered promiscuous mode macvlan0: entered allmulticast mode macvlan1: entered promiscuous mode macvlan1: entered allmulticast mode ipvlan0: entered promiscuous mode ipvlan0: entered allmulticast mode ipvlan1: entered promiscuous mode ipvlan1: entered allmulticast mode veth1_macvtap: entered allmulticast mode veth0_macvtap: entered promiscuous mode veth0_macvtap: entered allmulticast mode macsec0: entered promiscuous mode macsec0: entered allmulticast mode geneve0: entered promiscuous mode geneve0: entered allmulticast mode netdevsim netdevsim2 netdevsim0: unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim2 netdevsim1: unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim2 netdevsim2: unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim2 netdevsim3: unset [1, 0] type 2 family 0 port 6081 - 0 geneve1: entered promiscuous mode geneve1: entered allmulticast mode netdevsim netdevsim2 netdevsim0: entered allmulticast mode netdevsim netdevsim2 netdevsim1: entered promiscuous mode netdevsim netdevsim2 netdevsim1: entered allmulticast mode netdevsim netdevsim2 netdevsim2: entered promiscuous mode netdevsim netdevsim2 netdevsim2: entered allmulticast mode netdevsim netdevsim2 netdevsim3: entered promiscuous mode netdevsim netdevsim2 netdevsim3: entered allmulticast mode mac80211_hwsim hwsim8 wlan0: entered promiscuous mode mac80211_hwsim hwsim8 wlan0: entered allmulticast mode mac80211_hwsim hwsim9 wlan1: entered promiscuous mode mac80211_hwsim hwsim9 wlan1: entered allmulticast mode bridge1: entered promiscuous mode bridge1: entered allmulticast mode ip6tnl1: entered promiscuous mode ip6tnl1: entered allmulticast mode bond1: entered promiscuous mode bond1: entered allmulticast mode netdevsim netdevsim2 netdevsim0: unset [1, 1] type 2 family 0 port 20000 - 0 netdevsim netdevsim2 netdevsim1: unset [1, 1] type 2 family 0 port 20000 - 0 netdevsim netdevsim2 netdevsim2: unset [1, 1] type 2 family 0 port 20000 - 0 netdevsim netdevsim2 netdevsim3: unset [1, 1] type 2 family 0 port 20000 - 0 geneve2: entered promiscuous mode geneve2: entered allmulticast mode syztnl2: entered promiscuous mode syztnl2: entered allmulticast mode : entered allmulticast mode gre1: entered promiscuous mode gre1: entered allmulticast mode erspan1: entered promiscuous mode erspan1: entered allmulticast mode gretap1: entered promiscuous mode gretap1: entered allmulticast mode bridge2: entered allmulticast mode bridge3: entered promiscuous mode bridge3: entered allmulticast mode mac80211_hwsim hwsim14 wlan2: entered promiscuous mode mac80211_hwsim hwsim14 wlan2: entered allmulticast mode bridge4: entered promiscuous mode bridge4: entered allmulticast mode : entered promiscuous mode : entered allmulticast mode bond2: entered promiscuous mode bond2: entered allmulticast mode gretap3: entered promiscuous mode gretap3: entered allmulticast mode veth2: entered promiscuous mode veth2: entered allmulticast mode veth3: entered promiscuous mode netdevsim netdevsim2 netdevsim0: unset [1, 2] type 2 family 0 port 256 - 0 netdevsim netdevsim2 netdevsim1: unset [1, 2] type 2 family 0 port 256 - 0 netdevsim netdevsim2 netdevsim2: unset [1, 2] type 2 family 0 port 256 - 0 netdevsim netdevsim2 netdevsim3: unset [1, 2] type 2 family 0 port 256 - 0 virt_wifi0.3: entered promiscuous mode virt_wifi0.3: entered allmulticast mode ipip0: entered promiscuous mode ipip0: entered allmulticast mode bridge6: entered promiscuous mode bridge6: entered allmulticast mode gretap0.3: entered promiscuous mode gretap0.3: entered allmulticast mode bridge7: entered promiscuous mode bridge7: entered allmulticast mode bond3: entered promiscuous mode bond3: entered allmulticast mode sit2: entered promiscuous mode sit3: entered promiscuous mode sit3: entered allmulticast mode bond4: entered promiscuous mode bond4: entered allmulticast mode ip6gre1: entered promiscuous mode ip6gre1: entered allmulticast mode vxlan0: entered promiscuous mode vxlan0: entered allmulticast mode mac80211_hwsim hwsim28 wlan3: entered promiscuous mode mac80211_hwsim hwsim28 wlan3: entered allmulticast mode vlan2: entered allmulticast mode pimreg: entered promiscuous mode ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi