INFO: task syz-executor.4:5639 blocked for more than 143 seconds.
Not tainted 6.9.0-rc5-syzkaller-00296-g5eb4573ea63d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:26800 pid:5639 tgid:5639 ppid:5446 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6838
schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2558
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common+0x3de/0x5f0 kernel/sched/completion.c:116
__flush_work+0x5c4/0xb10 kernel/workqueue.c:4205
__cancel_work_sync+0x401/0x5a0 kernel/workqueue.c:4304
uhid_dev_destroy drivers/hid/uhid.c:584 [inline]
uhid_char_release+0xca/0x210 drivers/hid/uhid.c:662
__fput+0x270/0xb80 fs/file_table.c:422
__fput_sync+0x47/0x50 fs/file_table.c:507
__do_sys_close fs/open.c:1556 [inline]
__se_sys_close fs/open.c:1541 [inline]
__x64_sys_close+0x86/0x100 fs/open.c:1541
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f18ef47cc9a
RSP: 002b:00007ffd0da014e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f18ef47cc9a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000032 R08: 0000001b2f760000 R09: 00007f18ef5abf8c
R10: 00007ffd0da01630 R11: 0000000000000293 R12: 00007f18ef0003c0
R13: ffffffffffffffff R14: 00007f18ef000000 R15: 000000000001e5e6
INFO: task syz-executor.2:5657 blocked for more than 143 seconds.
Not tainted 6.9.0-rc5-syzkaller-00296-g5eb4573ea63d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:27184 pid:5657 tgid:5657 ppid:5445 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6838
schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2558
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common+0x3de/0x5f0 kernel/sched/completion.c:116
__flush_work+0x5c4/0xb10 kernel/workqueue.c:4205
__cancel_work_sync+0x401/0x5a0 kernel/workqueue.c:4304
uhid_dev_destroy drivers/hid/uhid.c:584 [inline]
uhid_char_release+0xca/0x210 drivers/hid/uhid.c:662
__fput+0x270/0xb80 fs/file_table.c:422
__fput_sync+0x47/0x50 fs/file_table.c:507
__do_sys_close fs/open.c:1556 [inline]
__se_sys_close fs/open.c:1541 [inline]
__x64_sys_close+0x86/0x100 fs/open.c:1541
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe7c1c7cc9a
RSP: 002b:00007ffd2bbb8760 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe7c1c7cc9a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000032 R08: 0000001b2f860000 R09: 00007fe7c1dabf8c
R10: 00007ffd2bbb88b0 R11: 0000000000000293 R12: 00007fe7c18003c0
R13: ffffffffffffffff R14: 00007fe7c1800000 R15: 000000000001e8f2
Showing all locks held in the system:
7 locks held by kworker/0:0/7:
1 lock held by khungtaskd/29:
#0:
ffffffff8d7b0e20
(
rcu_read_lock
){....}-{1:2}
, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
4 locks held by kworker/u8:2/34:
#0:
ffff888015ecb148
(
(wq_completion)netns
){+.+.}-{0:0}
, at: process_one_work+0x1296/0x1ac0 kernel/workqueue.c:3229
#1: ffffc90000aa7d80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x906/0x1ac0 kernel/workqueue.c:3230
#2:
ffffffff8f2ec790 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbb/0xbf0 net/core/net_namespace.c:591
#3:
ffffffff8f301588
(rtnl_mutex){+.+.}-{3:3}, at: wg_destruct+0x22/0x3d0 drivers/net/wireguard/device.c:246
3 locks held by kworker/u8:5/141:
3 locks held by kworker/u8:6/1098:
#0: ffff888029fc8948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x1296/0x1ac0 kernel/workqueue.c:3229
#1: ffffc90004f17d80 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x906/0x1ac0 kernel/workqueue.c:3230
#2: ffffffff8f301588 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcf/0x1500 net/ipv6/addrconf.c:4192
1 lock held by dhcpcd/4739:
#0: ffffffff8f301588 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x26e/0x1f10 net/ipv4/devinet.c:1096
2 locks held by getty/4827:
#0: ffff88802f5400a0 (&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+0xfc8/0x1490 drivers/tty/n_tty.c:2201
3 locks held by kworker/1:3/5078:
#0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1296/0x1ac0 kernel/workqueue.c:3229
#1: ffffc9000318fd80 (free_ipc_work){+.+.}-{0:0}
, at: process_one_work+0x906/0x1ac0 kernel/workqueue.c:3230
#2: ffffffff8d7bc538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#2: ffffffff8d7bc538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x403/0x7a0 kernel/rcu/tree_exp.h:939
6 locks held by kworker/0:5/5507:
3 locks held by kworker/1:6/5606:
#0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1296/0x1ac0 kernel/workqueue.c:3229
#1: ffffc900038afd80 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x906/0x1ac0 kernel/workqueue.c:3230
#2: ffffffff8f301588 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0x51/0xc0 net/core/link_watch.c:276
3 locks held by kworker/1:8/5635:
4 locks held by syz-executor.3/5982:
#0: ffff88802a330420 (sb_writers#9){.+.+}-{0:0}, at: ksys_write+0x12f/0x260 fs/read_write.c:643
#1:
ffff888069eeac88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x281/0x500 fs/kernfs/file.c:325
#2: ffff8880231ea4b8 (kn->active#51){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2a4/0x500 fs/kernfs/file.c:326
#3: ffffffff8e971368 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: new_device_store+0x187/0x730 drivers/net/netdevsim/bus.c:166
2 locks held by syz-executor.2/5984:
#0: ffff88801f249060 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:552
#1: ffff88801f248078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x339/0x11e0 net/bluetooth/hci_sync.c:5146
7 locks held by syz-executor.1/5987:
#0: ffff88802a330420 (sb_writers#9){.+.+}-{0:0}, at: ksys_write+0x12f/0x260 fs/read_write.c:643
#1: ffff88807e5b1c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x281/0x500 fs/kernfs/file.c:325
#2: ffff8880231ea5a8 (kn->active#50){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2a4/0x500 fs/kernfs/file.c:326
#3: ffffffff8e971368 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xd2/0x4b0 drivers/net/netdevsim/bus.c:216
#4: ffff8880656450e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
#4: ffff8880656450e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1093 [inline]
#4: ffff8880656450e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1290
#5: ffff888065646250 (&devlink->lock_key#8){+.+.}-{3:3}, at: nsim_drv_remove+0x4a/0x1d0 drivers/net/netdevsim/dev.c:1672
#6: ffffffff8f301588 (rtnl_mutex){+.+.}-{3:3}, at: nsim_destroy+0x35/0x2f0 drivers/net/netdevsim/netdev.c:451
1 lock held by syz-executor.4/6083:
#0:
ffffffff8f301588
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
, at: rtnetlink_rcv_msg+0x372/0xe60 net/core/rtnetlink.c:6592
1 lock held by syz-executor.0/6086:
#0:
ffffffff8f301588
(
rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe60 net/core/rtnetlink.c:6592
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.9.0-rc5-syzkaller-00296-g5eb4573ea63d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xf86/0x1240 kernel/hung_task.c:380
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7 Comm: kworker/0:0 Not tainted 6.9.0-rc5-syzkaller-00296-g5eb4573ea63d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events uhid_device_add_worker
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:26 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xc/0x60 kernel/kcov.c:207
Code: c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 48 8b 15 24 15 76 7e <65> 8b 05 25 15 76 7e a9 00 01 ff 00 48 8b 34 24 74 0f f6 c4 01 74
RSP: 0018:ffffc900000c6da8 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 00000000000efea4 RCX: ffffffff8ace2610
RDX: ffff888016edbc00 RSI: ffffffff8ace264f RDI: ffffc900000c6ea8
RBP: ffffc900000c7067 R08: 0000000000000005 R09: 000000000000002f
R10: 0000000000000018 R11: 000000000015a500 R12: ffffffff8b0d838b
R13: ffffc900000c6f10 R14: ffffc900000c6e98 R15: 0000000000000009
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c001444000 CR3: 00000000291b8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
vsnprintf+0x916/0x1880 lib/vsprintf.c:2890
sprintf+0xcd/0x110 lib/vsprintf.c:3028
print_time kernel/printk/printk.c:1330 [inline]
info_print_prefix+0x25c/0x350 kernel/printk/printk.c:1356
record_print_text+0x141/0x400 kernel/printk/printk.c:1405
printk_get_next_message+0x2a6/0x670 kernel/printk/printk.c:2840
console_emit_next_record kernel/printk/printk.c:2880 [inline]
console_flush_all+0x3b2/0xd70 kernel/printk/printk.c:2979
console_unlock+0xae/0x290 kernel/printk/printk.c:3048
vprintk_emit kernel/printk/printk.c:2348 [inline]
vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2303
dev_vprintk_emit drivers/base/core.c:4950 [inline]
dev_printk_emit+0xfb/0x140 drivers/base/core.c:4961
__dev_printk+0xf5/0x270 drivers/base/core.c:4973
_dev_warn+0xe5/0x120 drivers/base/core.c:5017
hid_parser_main+0x2b6/0xc70 drivers/hid/hid-core.c:632
hid_open_report+0x3f4/0x7c0 drivers/hid/hid-core.c:1276
hid_parse include/linux/hid.h:1118 [inline]
hid_generic_probe+0x4d/0x90 drivers/hid/hid-generic.c:63
__hid_device_probe drivers/hid/hid-core.c:2633 [inline]
hid_device_probe+0x2eb/0x490 drivers/hid/hid-core.c:2670
call_driver_probe drivers/base/dd.c:578 [inline]
really_probe+0x23e/0xa90 drivers/base/dd.c:656
__driver_probe_device+0x1de/0x440 drivers/base/dd.c:798
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:828
__device_attach_driver+0x1df/0x310 drivers/base/dd.c:956
bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:457
__device_attach+0x1e8/0x4b0 drivers/base/dd.c:1028
bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:532
device_add+0x1188/0x1ab0 drivers/base/core.c:3720
hid_add_device+0x37f/0xa70 drivers/hid/hid-core.c:2816
uhid_device_add_worker+0x3e/0x110 drivers/hid/uhid.c:73
process_one_work+0x9a9/0x1ac0 kernel/workqueue.c:3254
process_scheduled_works kernel/workqueue.c:3335 [inline]
worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244