INFO: task syz-executor.0:23198 blocked for more than 143 seconds.
Not tainted 5.19.0-rc4-next-20220628-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:28008 pid:23198 ppid: 3633 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5184 [inline]
__schedule+0xa09/0x4f10 kernel/sched/core.c:6496
schedule+0xd2/0x1f0 kernel/sched/core.c:6568
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6627
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
device_lock include/linux/device.h:835 [inline]
usbdev_release+0x83/0x4b0 drivers/usb/core/devio.c:1087
__fput+0x277/0x9d0 fs/file_table.c:317
task_work_run+0xdd/0x1a0 kernel/task_work.c:177
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:169 [inline]
exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f1fd963bd4b
RSP: 002b:00007ffcb31de1f0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007f1fd963bd4b
RDX: 0000000000000000 RSI: 0000001b2e625144 RDI: 0000000000000006
RBP: 00007f1fd979d960 R08: 0000000000000000 R09: 0000000099171635
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000199809
R13: 00007ffcb31de2f0 R14: 00007ffcb31de310 R15: 0000000000000032
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8bd864f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8bd861f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8bd87040 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6491
4 locks held by klogd/2959:
#0: ffff8880b9a39f18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:544
#1: ffff8880b9a40458 (&pcp->lock){....}-{2:2}, at: free_unref_page+0x31f/0x4d0 mm/page_alloc.c:3500
#2: ffff88807e25e148 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0xaa/0x17d0 kernel/sched/core.c:4084
#3: ffff88813fffa7c8 (&____s->seqcount){...-}-{0:0}, at: __free_one_page+0x135/0x11f0 mm/page_alloc.c:1125
2 locks held by getty/3277:
#0: ffff888025e6b098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002d162f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0 drivers/tty/n_tty.c:2177
3 locks held by kworker/u4:18/8923:
5 locks held by kworker/1:6/27156:
#0: ffff888011b9dd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888011b9dd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888011b9dd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888011b9dd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888011b9dd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888011b9dd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc9001438fda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff888147e0b190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#2: ffff888147e0b190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bc/0x45d0 drivers/usb/core/hub.c:5674
#3: ffff88803f8a94f8 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3096 [inline]
#3: ffff88803f8a94f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5242 [inline]
#3: ffff88803f8a94f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5490 [inline]
#3: ffff88803f8a94f8 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5646 [inline]
#3: ffff88803f8a94f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x1f99/0x45d0 drivers/usb/core/hub.c:5728
#4: ffff888147d61a68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5243 [inline]
#4: ffff888147d61a68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5490 [inline]
#4: ffff888147d61a68 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5646 [inline]
#4: ffff888147d61a68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x1fbf/0x45d0 drivers/usb/core/hub.c:5728
1 lock held by syz-executor.0/23198:
#0: ffff888147e0b190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#0: ffff888147e0b190 (&dev->mutex){....}-{3:3}, at: usbdev_release+0x83/0x4b0 drivers/usb/core/devio.c:1087
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 5.19.0-rc4-next-20220628-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc18/0xf50 kernel/hung_task.c:369
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2959 Comm: klogd Not tainted 5.19.0-rc4-next-20220628-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
RIP: 0010:write_comp_data+0x3c/0x90 kernel/kcov.c:229
Code: 01 00 00 49 89 f8 65 48 8b 14 25 80 6f 02 00 a9 00 01 ff 00 74 0e 85 f6 74 59 8b 82 94 15 00 00 85 c0 74 4f 8b 82 70 15 00 00 <83> f8 03 75 44 48 8b 82 78 15 00 00 8b 92 74 15 00 00 48 8b 38 48
RSP: 0018:ffffc90002d3f860 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff888077e3c000 RCX: ffffffff81366c2e
RDX: ffff88807d5e3a80 RSI: 0000000000000000 RDI: 0000000000000006
RBP: ffff8880f7e3c000 R08: 0000000000000006 R09: ffff8880f7e3c000
R10: 0000000077e3c000 R11: 0000000000000000 R12: 0000000077e3c000
R13: ffffc90002d3f8d0 R14: ffff888077e3c000 R15: 0000000000000000
FS: 00007fb4a0e20800(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b796d2d8b8 CR3: 000000007f096000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000003b DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__phys_addr+0x4e/0x140 arch/x86/mm/physaddr.c:28
virt_to_folio include/linux/mm.h:884 [inline]
virt_to_slab mm/kasan/../slab.h:175 [inline]
qlink_to_cache mm/kasan/quarantine.c:131 [inline]
qlist_free_all+0x86/0x170 mm/kasan/quarantine.c:184
kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:294
__kasan_slab_alloc+0xa2/0xc0 mm/kasan/common.c:446
kasan_slab_alloc include/linux/kasan.h:224 [inline]
slab_post_alloc_hook mm/slab.h:736 [inline]
slab_alloc_node mm/slub.c:3243 [inline]
__kmalloc_node_track_caller+0x324/0x480 mm/slub.c:4955
kmalloc_reserve net/core/skbuff.c:358 [inline]
__alloc_skb+0xd9/0x340 net/core/skbuff.c:430
alloc_skb include/linux/skbuff.h:1249 [inline]
alloc_skb_with_frags+0x93/0x6d0 net/core/skbuff.c:5990
sock_alloc_send_pskb+0x793/0x920 net/core/sock.c:2663
unix_dgram_sendmsg+0x415/0x1b60 net/unix/af_unix.c:1884
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:734
__sys_sendto+0x21a/0x320 net/socket.c:2116
__do_sys_sendto net/socket.c:2128 [inline]
__se_sys_sendto net/socket.c:2124 [inline]
__x64_sys_sendto+0xdd/0x1b0 net/socket.c:2124
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7fb4a0fbc0ac
Code: 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 19 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 64 c3 0f 1f 00 55 48 83 ec 20 48 89 54 24 10
RSP: 002b:00007fff8d9aa7e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb4a0fbc0ac
RDX: 000000000000003e RSI: 000055cec65a4ab0 RDI: 0000000000000003
RBP: 000055cec6599910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000014
R13: 0000000000000001 R14: 00007fb4a113777d R15: 00007fff8d9aa8f8
----------------
Code disassembly (best guess):
0: 01 00 add %eax,(%rax)
2: 00 49 89 add %cl,-0x77(%rcx)
5: f8 clc
6: 65 48 8b 14 25 80 6f mov %gs:0x26f80,%rdx
d: 02 00
f: a9 00 01 ff 00 test $0xff0100,%eax
14: 74 0e je 0x24
16: 85 f6 test %esi,%esi
18: 74 59 je 0x73
1a: 8b 82 94 15 00 00 mov 0x1594(%rdx),%eax
20: 85 c0 test %eax,%eax
22: 74 4f je 0x73
24: 8b 82 70 15 00 00 mov 0x1570(%rdx),%eax
* 2a: 83 f8 03 cmp $0x3,%eax <-- trapping instruction
2d: 75 44 jne 0x73
2f: 48 8b 82 78 15 00 00 mov 0x1578(%rdx),%rax
36: 8b 92 74 15 00 00 mov 0x1574(%rdx),%edx
3c: 48 8b 38 mov (%rax),%rdi
3f: 48 rex.W