INFO: task dhcpcd:4703 blocked for more than 143 seconds.
Not tainted 6.6.0-rc2-syzkaller-00337-gd90b0276af8f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:22656 pid:4703 ppid:4702 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x969/0x1340 kernel/locking/mutex.c:747
netlink_dump+0xc1/0xca0 net/netlink/af_netlink.c:2213
netlink_recvmsg+0x9ff/0xf20 net/netlink/af_netlink.c:1992
sock_recvmsg_nosec net/socket.c:1027 [inline]
sock_recvmsg+0xe2/0x170 net/socket.c:1049
____sys_recvmsg+0x21f/0x5c0 net/socket.c:2760
___sys_recvmsg+0x115/0x1a0 net/socket.c:2802
__sys_recvmsg+0x114/0x1e0 net/socket.c:2832
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f927c7c191e
RSP: 002b:00007fff9fee8e68 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007fff9fee9f90 RCX: 00007f927c7c191e
RDX: 0000000000000000 RSI: 00007fff9fee9eb0 RDI: 0000000000000015
RBP: 00007fff9fee9f20 R08: 0000000000000000 R09: 0000000000100000
R10: 00000000000000c6 R11: 0000000000000246 R12: 0000000000000b50
R13: 00007fff9fee9e94 R14: 00007fff9fee9eb0 R15: 00007fff9fee9ea0
INFO: task kworker/u4:6:10786 blocked for more than 144 seconds.
Not tainted 6.6.0-rc2-syzkaller-00337-gd90b0276af8f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:6 state:D stack:23552 pid:10786 ppid:2 flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x969/0x1340 kernel/locking/mutex.c:747
vti6_exit_batch_net+0x86/0x720 net/ipv6/ip6_vti.c:1183
ops_exit_list+0x125/0x170 net/core/net_namespace.c:175
cleanup_net+0x505/0xb20 net/core/net_namespace.c:614
process_one_work+0x884/0x15c0 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
INFO: task kworker/0:1:23321 blocked for more than 144 seconds.
Not tainted 6.6.0-rc2-syzkaller-00337-gd90b0276af8f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:1 state:D stack:23760 pid:23321 ppid:2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_verify_work
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x969/0x1340 kernel/locking/mutex.c:747
addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4667
process_one_work+0x884/0x15c0 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
INFO: task syz-executor.1:7637 blocked for more than 145 seconds.
Not tainted 6.6.0-rc2-syzkaller-00337-gd90b0276af8f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27152 pid:7637 ppid:2529 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x969/0x1340 kernel/locking/mutex.c:747
wiphy_lock include/net/cfg80211.h:5775 [inline]
nl80211_pre_doit+0x713/0xb00 net/wireless/nl80211.c:16497
genl_family_rcv_msg_doit+0x1be/0x2e0 net/netlink/genetlink.c:966
genl_family_rcv_msg net/netlink/genetlink.c:1051 [inline]
genl_rcv_msg+0x55c/0x800 net/netlink/genetlink.c:1066
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2545
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1075
netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline]
netlink_unicast+0x536/0x810 net/netlink/af_netlink.c:1368
netlink_sendmsg+0x93c/0xe40 net/netlink/af_netlink.c:1910
sock_sendmsg_nosec net/socket.c:730 [inline]
sock_sendmsg+0xd9/0x180 net/socket.c:753
____sys_sendmsg+0x6ac/0x940 net/socket.c:2541
___sys_sendmsg+0x135/0x1d0 net/socket.c:2595
__sys_sendmsg+0x117/0x1e0 net/socket.c:2624
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f9c5e27cae9
RSP: 002b:00007f9c5f0a40c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f9c5e39bf80 RCX: 00007f9c5e27cae9
RDX: 0000000000000000 RSI: 00000000200003c0 RDI: 0000000000000003
RBP: 00007f9c5e2c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f9c5e39bf80 R15: 00007ffd9c965b08
Showing all locks held in the system:
1 lock held by khungtaskd/28:
#0: ffffffff8cbab2a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:303 [inline]
#0: ffffffff8cbab2a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:749 [inline]
#0: ffffffff8cbab2a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6613
2 locks held by kworker/u4:7/1034:
4 locks held by kworker/1:2/2516:
1 lock held by dhcpcd/4703:
#0: ffffffff8e6025e8 (rtnl_mutex){+.+.}-{3:3}, at: netlink_dump+0xc1/0xca0 net/netlink/af_netlink.c:2213
2 locks held by getty/4793:
#0: ffff88802a3420a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc5/0x1480 drivers/tty/n_tty.c:2206
4 locks held by kworker/1:4/5125:
4 locks held by kworker/1:5/5127:
4 locks held by kworker/u4:6/10786:
#0: ffff888012c73d38 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x787/0x15c0 kernel/workqueue.c:2605
#1: ffffc90015d27d80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7e9/0x15c0 kernel/workqueue.c:2606
#2: ffffffff8e5ed2d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x9f/0xb20 net/core/net_namespace.c:576
#3:
ffffffff8e6025e8 (rtnl_mutex){+.+.}-{3:3}, at: vti6_exit_batch_net+0x86/0x720 net/ipv6/ip6_vti.c:1183
4 locks held by kworker/1:1/32662:
4 locks held by kworker/1:3/2135:
4 locks held by kworker/1:8/4036:
3 locks held by kworker/0:1/23321:
#0: ffff8880257b7138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x787/0x15c0 kernel/workqueue.c:2605
#1: ffffc9000a52fd80 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7e9/0x15c0 kernel/workqueue.c:2606
#2: ffffffff8e6025e8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4667
4 locks held by kworker/1:0/24517:
4 locks held by kworker/1:6/24968:
4 locks held by kworker/1:7/25250:
4 locks held by kworker/1:9/25672:
4 locks held by kworker/1:10/26353:
7 locks held by kworker/1:11/26728:
4 locks held by kworker/1:12/27262:
3 locks held by kworker/1:13/28030:
4 locks held by kworker/1:14/28669:
6 locks held by kworker/1:15/28756:
4 locks held by kworker/1:16/30478:
4 locks held by kworker/1:17/31490:
4 locks held by kworker/1:18/32026:
4 locks held by kworker/1:20/1014:
3 locks held by kworker/1:24/2814:
#0: ffff8880257b7138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x787/0x15c0 kernel/workqueue.c:2605
#1: ffffc9000e23fd80 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7e9/0x15c0 kernel/workqueue.c:2606
#2: ffffffff8e6025e8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4667
4 locks held by kworker/1:26/2855:
2 locks held by kworker/1:27/3132:
3 locks held by syz-executor.1/7637:
#0: ffffffff8e69cd90 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1074
#1: ffffffff8e6025e8 (rtnl_mutex){+.+.}-{3:3}, at: nl80211_pre_doit+0xb4/0xb00 net/wireless/nl80211.c:16424
#2: ffff88809a890768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5775 [inline]
#2: ffff88809a890768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: nl80211_pre_doit+0x713/0xb00 net/wireless/nl80211.c:16497
1 lock held by syz-executor.1/7729:
#0: ffffffff8e6025e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline]
#0: ffffffff8e6025e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x36f/0xdf0 net/core/rtnetlink.c:6441
1 lock held by syz-executor.1/7737:
#0: ffffffff8e6025e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline]
#0: ffffffff8e6025e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x36f/0xdf0 net/core/rtnetlink.c:6441
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.6.0-rc2-syzkaller-00337-gd90b0276af8f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x299/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xf87/0x1210 kernel/hung_task.c:379
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 32662 Comm: kworker/1:1 Not tainted 6.6.0-rc2-syzkaller-00337-gd90b0276af8f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Workqueue: events cfg80211_wiphy_work
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:200
Code: c6 6d 9d 02 66 0f 1f 44 00 00 f3 0f 1e fa 48 8b be b0 01 00 00 e8 b0 ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1e fa 65 8b 05 0d f6 7b 7e 89 c1 48 8b 34 24 81 e1 00 01 00
RSP: 0018:ffffc900001f0318 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff888096d7a9b0 RCX: ffffffff891d9c8b
RDX: ffff88803a03d940 RSI: 0000000000000100 RDI: 0000000000000005
RBP: ffffc900001f0510 R08: 0000000000000005 R09: 00000000ffffffd6
R10: 00000000ffffffd6 R11: 0000000000000000 R12: ffff888099e97974
R13: 00000000ffffffd6 R14: 000000000000dd86 R15: ffffc900001f05a8
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000000c976000 CR4: 0000000000350ee0
Call Trace:
skb_network_header include/linux/skbuff.h:2880 [inline]
ipv6_hdr include/linux/ipv6.h:101 [inline]
br_multicast_ipv6_rcv net/bridge/br_multicast.c:3888 [inline]
br_multicast_rcv+0x331d/0x6750 net/bridge/br_multicast.c:3969
br_handle_frame_finish+0xe48/0x1d80 net/bridge/br_input.c:148
br_nf_hook_thresh+0x2ff/0x410 net/bridge/br_netfilter_hooks.c:1048
br_nf_pre_routing_finish_ipv6+0x683/0xf20 net/bridge/br_netfilter_ipv6.c:148
NF_HOOK include/linux/netfilter.h:304 [inline]
br_nf_pre_routing_ipv6+0x40e/0x870 net/bridge/br_netfilter_ipv6.c:178
br_nf_pre_routing+0x80f/0x1540 net/bridge/br_netfilter_hooks.c:508
nf_hook_entry_hookfn include/linux/netfilter.h:144 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:272 [inline]
br_handle_frame+0x9da/0x1700 net/bridge/br_input.c:417
__netif_receive_skb_core.constprop.0+0xa26/0x3fa0 net/core/dev.c:5417
__netif_receive_skb_one_core+0xaf/0x180 net/core/dev.c:5521
__netif_receive_skb+0x1f/0x1b0 net/core/dev.c:5637
process_backlog+0x101/0x6b0 net/core/dev.c:5965
__napi_poll.constprop.0+0xb4/0x530 net/core/dev.c:6527
napi_poll net/core/dev.c:6594 [inline]
net_rx_action+0x956/0xe90 net/core/dev.c:6727
__do_softirq+0x218/0x965 kernel/softirq.c:553
do_softirq kernel/softirq.c:454 [inline]
do_softirq+0xaa/0xe0 kernel/softirq.c:441
__local_bh_enable_ip+0xf8/0x120 kernel/softirq.c:381
spin_unlock_bh include/linux/spinlock.h:396 [inline]
cfg80211_inform_single_bss_frame_data+0x835/0xf30 net/wireless/scan.c:2887
cfg80211_inform_bss_frame_data+0xbf/0x290 net/wireless/scan.c:2912
ieee80211_bss_info_update+0x374/0x990 net/mac80211/scan.c:211
ieee80211_rx_bss_info net/mac80211/ibss.c:1124 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1613 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1958/0x2ed0 net/mac80211/ibss.c:1642
ieee80211_iface_process_skb net/mac80211/iface.c:1604 [inline]
ieee80211_iface_work+0xa1f/0xd40 net/mac80211/iface.c:1658
cfg80211_wiphy_work+0x24e/0x330 net/wireless/core.c:435
process_one_work+0x884/0x15c0 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304