INFO: task syz-executor.1:6853 blocked for more than 156 seconds.
Not tainted 6.10.0-rc3-next-20240611-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D
stack:23800 pid:6853 tgid:6852 ppid:5115 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5192 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
bpf_map_offload_map_alloc+0x132/0x680 kernel/bpf/offload.c:532
map_create+0x90c/0x1200 kernel/bpf/syscall.c:1333
__sys_bpf+0x6d1/0x810 kernel/bpf/syscall.c:5692
__do_sys_bpf kernel/bpf/syscall.c:5817 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5815 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5815
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb23587cea9
RSP: 002b:00007fb2366570c8 EFLAGS: 00000246
ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fb2359b3f80 RCX: 00007fb23587cea9
RDX: 0000000000000048 RSI: 0000000020000280 RDI: 0000000000000000
RBP: 00007fb2358ebff4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fb2359b3f80 R15: 00007fff8e205358
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e3354a0
(
rcu_read_lock
){....}-{1:2}
, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6689
3 locks held by kworker/u8:2/35:
#0:
ffff888029e9a948
((wq_completion)ipv6_addrconf
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3223 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
#1:
ffffc90000ab7d00
((work_completion)(&(&net->ipv6.addr_chk_work)->work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3224 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
#2:
ffffffff8f5ef4c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4733
3 locks held by kworker/1:2/783:
#0:
ffff888015080948
(
(wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
(wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
#1: ffffc900036ffd00
(
deferred_process_work
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3224 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
#2:
ffffffff8f5ef4c8 (rtnl_mutex
){+.+.}-{3:3}
, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104
2 locks held by getty/4839:
#0: ffff88802f5e00a0 (&tty->ldisc_sem){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1:
ffffc90002f162f0
(&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211
6 locks held by kworker/u9:4/5114:
#0:
ffff88805932b948
(
(wq_completion)hci8
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3223 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
#1:
ffffc90003fe7d00
(
(work_completion)(&hdev->cmd_sync_work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3224 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
#2: ffff888077740d88 (&hdev->req_lock){+.+.}-{3:3}
, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:309
#3:
ffff888077740078
(&hdev->lock
){+.+.}-{3:3}
, at: hci_abort_conn_sync+0x1ea/0xde0 net/bluetooth/hci_sync.c:5431
#4: ffffffff8f759f08
(
hci_cb_list_lock
){+.+.}-{3:3}
, at: hci_connect_cfm include/net/bluetooth/hci_core.h:1968 [inline]
, at: hci_conn_failed+0x185/0x340 net/bluetooth/hci_conn.c:1257
#5:
ffffffff8e33a878 (
rcu_state.exp_mutex
){+.+.}-{3:3}
, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:959
6 locks held by syz-executor.0/6780:
1 lock held by syz-executor.1/6853:
#0:
ffffffff8f5ef4c8 (
rtnl_mutex){+.+.}-{3:3}, at: bpf_map_offload_map_alloc+0x132/0x680 kernel/bpf/offload.c:532
1 lock held by syz-executor.2/6877:
#0:
ffffffff8f5ef4c8
(rtnl_mutex
){+.+.}-{3:3}
, at: packet_mc_add+0x28/0x950 net/packet/af_packet.c:3669
1 lock held by syz-executor.2/6880:
#0:
ffffffff8f5ef4c8
(rtnl_mutex){+.+.}-{3:3}
, at: addrconf_add_ifaddr+0x1fc/0x340 net/ipv6/addrconf.c:3163
1 lock held by syz-executor.4/6906:
#0:
ffffffff8f5ef4c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: packet_mc_add+0x28/0x950 net/packet/af_packet.c:3669
1 lock held by syz-executor.4/6907:
#0:
ffffffff8f5ef4c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: addrconf_add_ifaddr+0x1fc/0x340 net/ipv6/addrconf.c:3163
1 lock held by syz-executor.3/6911:
#0:
ffffffff8f5ef4c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: packet_mc_add+0x28/0x950 net/packet/af_packet.c:3669
1 lock held by syz-executor.3/6912:
#0: ffffffff8f5ef4c8 (rtnl_mutex
){+.+.}-{3:3}
, at: addrconf_add_ifaddr+0x1fc/0x340 net/ipv6/addrconf.c:3163
1 lock held by syz-executor.0/6914:
#0:
ffffffff8f5ef4c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnetlink_rcv_msg+0x839/0x1170 net/core/rtnetlink.c:6724
1 lock held by syz-executor.1/6919:
#0:
ffffffff8f5ef4c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x839/0x1170 net/core/rtnetlink.c:6724
1 lock held by syz-executor.2/6924:
#0: ffffffff8f5ef4c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnetlink_rcv_msg+0x839/0x1170 net/core/rtnetlink.c:6724
1 lock held by syz-executor.4/6929:
#0:
ffffffff8f5ef4c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnetlink_rcv_msg+0x839/0x1170 net/core/rtnetlink.c:6724
1 lock held by syz-executor.3/6935:
#0:
ffffffff8f5ef4c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnetlink_rcv_msg+0x839/0x1170 net/core/rtnetlink.c:6724
1 lock held by syz-executor.0/6938:
#0:
ffffffff8f5ef4c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnetlink_rcv_msg+0x839/0x1170 net/core/rtnetlink.c:6724
1 lock held by syz-executor.1/6942:
#0:
ffffffff8f5ef4c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnetlink_rcv_msg+0x839/0x1170 net/core/rtnetlink.c:6724
1 lock held by syz-executor.2/6946:
#0:
ffffffff8f5ef4c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnetlink_rcv_msg+0x839/0x1170 net/core/rtnetlink.c:6724
1 lock held by syz-executor.4/6950:
#0:
ffffffff8f5ef4c8
(rtnl_mutex
){+.+.}-{3:3}
, at: rtnetlink_rcv_msg+0x839/0x1170 net/core/rtnetlink.c:6724
1 lock held by syz-executor.3/6955:
#0:
ffffffff8f5ef4c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnetlink_rcv_msg+0x839/0x1170 net/core/rtnetlink.c:6724
1 lock held by syz-executor.0/6967:
#0:
ffffffff8f5ef4c8
(rtnl_mutex
){+.+.}-{3:3}
, at: rtnetlink_rcv_msg+0x839/0x1170 net/core/rtnetlink.c:6724
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc3-next-20240611-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
__dump_stack lib/dump_stack.c:91 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:117
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xfde/0x1020 kernel/hung_task.c:379
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:144
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2550
NMI backtrace for cpu 0
CPU: 0 PID: 6780 Comm: syz-executor.0 Not tainted 6.10.0-rc3-next-20240611-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:io_serial_in+0x76/0xb0 drivers/tty/serial/8250/8250_port.c:406
Code: 60 c8 54 fc 89 e9 41 d3 e6 48 83 c3 40 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 11 d7 ba fc 44 03 33 44 89 f2 ec <0f> b6 c0 5b 41 5e 41 5f 5d c3 cc cc cc cc 89 e9 80 e1 07 38 c1 7c
RSP: 0018:ffffc90000007298 EFLAGS: 00000002
RAX: 1ffffffff295e400 RBX: ffffffff94af23a0 RCX: 0000000000000000
RDX: 00000000000003fd RSI: 0000000000000000 RDI: 0000000000000020
RBP: 0000000000000000 R08: ffffffff853e7f86 R09: 1ffff11003f20046
R10: dffffc0000000000 R11: ffffffff853e7f40 R12: dffffc0000000000
R13: ffffffff94803bb0 R14: 00000000000003fd R15: dffffc0000000000
FS: 00007fa7a1fc26c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559429a4f438 CR3: 0000000022030000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
serial_in drivers/tty/serial/8250/8250.h:137 [inline]
serial_lsr_in drivers/tty/serial/8250/8250.h:159 [inline]
wait_for_lsr drivers/tty/serial/8250/8250_port.c:2068 [inline]
serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3315 [inline]
serial8250_console_write+0x1373/0x1ed0 drivers/tty/serial/8250/8250_port.c:3393
console_emit_next_record kernel/printk/printk.c:2975 [inline]
console_flush_all+0x880/0xf50 kernel/printk/printk.c:3047
console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3118
vprintk_emit+0x7a1/0x900 kernel/printk/printk.c:2420
_printk+0xd5/0x120 kernel/printk/printk.c:2447
printk_stack_address arch/x86/kernel/dumpstack.c:72 [inline]
show_trace_log_lvl+0x43a/0x520 arch/x86/kernel/dumpstack.c:285
sched_show_task+0x578/0x740 kernel/sched/core.c:7432
report_rtnl_holders+0x1ba/0x2d0 net/core/rtnetlink.c:104
call_timer_fn+0x18e/0x650 kernel/time/timer.c:1792
expire_timers kernel/time/timer.c:1843 [inline]
__run_timers kernel/time/timer.c:2417 [inline]
__run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428
run_timer_base kernel/time/timer.c:2437 [inline]
run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447
handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:rcu_is_watching+0x67/0xb0 kernel/rcu/tree.c:719
Code: 89 f7 e8 1c e8 7f 00 48 c7 c3 08 7d 03 00 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 75 22 8b 03 65 ff 0d 41 67 8a 7e <74> 10 83 e0 04 c1 e8 02 5b 41 5e 41 5f c3 cc cc cc cc e8 22 48 87
RSP: 0018:ffffc90011e5e6e0 EFLAGS: 00000286
RAX: 0000000000137344 RBX: ffff8880b9437d08 RCX: ffff888023143c00
RDX: ffff888023143c00 RSI: ffffffff8c200740 RDI: ffffffff8c200700
RBP: ffffc90011e5e7d0 R08: ffffffff897eac4a R09: 1ffffffff25f96e8
R10: dffffc0000000000 R11: fffffbfff25f96e9 R12: dffffc0000000000
R13: ffffffff897eab60 R14: ffffffff8ddc9a20 R15: dffffc0000000000
rcu_read_unlock include/linux/rcupdate.h:867 [inline]
tcf_idr_check_alloc+0x207/0x900 net/sched/act_api.c:841
tcf_police_init+0x29b/0x17c0 net/sched/act_police.c:75
tcf_action_init_1+0x5d7/0x890 net/sched/act_api.c:1426
tcf_action_init+0x2e4/0x940 net/sched/act_api.c:1489
tcf_action_add net/sched/act_api.c:2062 [inline]
tc_ctl_action+0x47d/0xcf0 net/sched/act_api.c:2119
rtnetlink_rcv_msg+0x892/0x1170 net/core/rtnetlink.c:6727
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2550
netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1357
netlink_sendmsg+0x8db/0xcb0 net/netlink/af_netlink.c:1901
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
____sys_sendmsg+0x525/0x7d0 net/socket.c:2585
___sys_sendmsg net/socket.c:2639 [inline]
__sys_sendmsg+0x2b0/0x3a0 net/socket.c:2668
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa7a127cea9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa7a1fc20c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa7a13b3f80 RCX: 00007fa7a127cea9
RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000006
RBP: 00007fa7a12ebff4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa7a13b3f80 R15: 00007fff9b137118