INFO: task syz-executor.3:7778 blocked for more than 143 seconds.
Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:29632 pid:7778 tgid:7776 ppid:5077 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5c70 kernel/sched/core.c:6736
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6828
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6885
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
blk_trace_ioctl+0xc9/0x290 kernel/trace/blktrace.c:736
blkdev_common_ioctl+0x15a5/0x1cd0 block/ioctl.c:569
blkdev_ioctl+0x247/0x770 block/ioctl.c:634
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:904 [inline]
__se_sys_ioctl fs/ioctl.c:890 [inline]
__x64_sys_ioctl+0x193/0x220 fs/ioctl.c:890
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f948547dda9
RSP: 002b:00007f94861c80c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f94855ac050 RCX: 00007f948547dda9
RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003
RBP: 00007f94854ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f94855ac050 R15: 00007fff2fdf94f8
INFO: task syz-executor.3:7779 blocked for more than 144 seconds.
Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:29760 pid:7779 tgid:7776 ppid:5077 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5c70 kernel/sched/core.c:6736
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6828
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6885
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
blk_trace_ioctl+0xc9/0x290 kernel/trace/blktrace.c:736
blkdev_common_ioctl+0x15a5/0x1cd0 block/ioctl.c:569
blkdev_ioctl+0x247/0x770 block/ioctl.c:634
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:904 [inline]
__se_sys_ioctl fs/ioctl.c:890 [inline]
__x64_sys_ioctl+0x193/0x220 fs/ioctl.c:890
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f948547dda9
RSP: 002b:00007f94861a70c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f94855ac120 RCX: 00007f948547dda9
RDX: 0000000000000000 RSI: 0000000000001274 RDI: 0000000000000003
RBP: 00007f94854ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f94855ac120 R15: 00007fff2fdf94f8
INFO: task syz-executor.3:7783 blocked for more than 145 seconds.
Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:29872 pid:7783 tgid:7776 ppid:5077 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5c70 kernel/sched/core.c:6736
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6828
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6885
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
blk_trace_ioctl+0xc9/0x290 kernel/trace/blktrace.c:736
blkdev_common_ioctl+0x15a5/0x1cd0 block/ioctl.c:569
blkdev_ioctl+0x247/0x770 block/ioctl.c:634
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:904 [inline]
__se_sys_ioctl fs/ioctl.c:890 [inline]
__x64_sys_ioctl+0x193/0x220 fs/ioctl.c:890
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f948547dda9
RSP: 002b:00007f94861860c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f94855ac1f0 RCX: 00007f948547dda9
RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003
RBP: 00007f94854ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f94855ac1f0 R15: 00007fff2fdf94f8
Showing all locks held in the system:
4 locks held by rcu_exp_gp_kthr/18:
#0: ffff8880b953e698 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:559
#1: ffff8880b9528a08 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x2d9/0x900 kernel/sched/psi.c:988
#2: ffff88801c2ca810 (&p->pi_lock){-.-.}-{2:2}, at: class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:553 [inline]
#2: ffff88801c2ca810 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0x9a/0x13e0 kernel/sched/core.c:4262
#3: ffff8880b943e698 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:559
1 lock held by khungtaskd/29:
#0: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
5 locks held by kworker/u8:3/50:
#0: ffff888015ed3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x1296/0x1a60 kernel/workqueue.c:3229
#1: ffffc90000ba7d80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x906/0x1a60 kernel/workqueue.c:3230
#2: ffffffff8f2e1650 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbb/0xbf0 net/core/net_namespace.c:591
#3: ffffffff8f2f63c8 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0x8c/0xae0 net/core/dev.c:11617
#4: ffffffff8d7bc4b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
#4: ffffffff8d7bc4b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x682/0x7a0 kernel/rcu/tree_exp.h:939
1 lock held by kswapd0/89:
3 locks held by kworker/u8:6/1088:
#0: ffff88802a52c148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x1296/0x1a60 kernel/workqueue.c:3229
#1: ffffc900047a7d80 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x906/0x1a60 kernel/workqueue.c:3230
#2: ffffffff8f2f63c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcf/0x1500 net/ipv6/addrconf.c:4191
2 locks held by dhcpcd/4727:
#0: ffff88807b5d2678 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: __netlink_dump_start+0x154/0x9b0 net/netlink/af_netlink.c:2350
#1: ffffffff8f2f63c8 (rtnl_mutex){+.+.}-{3:3}, at: netlink_dump+0x58c/0xe00 net/netlink/af_netlink.c:2268
2 locks held by getty/4818:
#0: ffff88802b4890a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900015f02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2201
2 locks held by syz-executor.3/7777:
1 lock held by syz-executor.3/7778:
#0: ffff888020835ae0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xc9/0x290 kernel/trace/blktrace.c:736
1 lock held by syz-executor.3/7779:
#0: ffff888020835ae0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xc9/0x290 kernel/trace/blktrace.c:736
1 lock held by syz-executor.3/7783:
#0: ffff888020835ae0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xc9/0x290 kernel/trace/blktrace.c:736
1 lock held by syz-executor.0/9507:
#0: ffffffff8f2f63c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f2f63c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe60 net/core/rtnetlink.c:6592
7 locks held by syz-executor.3/9552:
#0: ffff888029266420 (sb_writers#9){.+.+}-{0:0}, at: ksys_write+0x12f/0x260 fs/read_write.c:643
#1: ffff88802b54ac88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x281/0x500 fs/kernfs/file.c:325
#2: ffff888023462a00 (kn->active#51){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2a4/0x500 fs/kernfs/file.c:326
#3: ffffffff8e959968 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: new_device_store+0x187/0x730 drivers/net/netdevsim/bus.c:166
#4: ffff88807e9770e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
#4: ffff88807e9770e8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1005
#5: ffff88807e972250 (&devlink->lock_key#11){+.+.}-{3:3}, at: nsim_drv_probe+0xd5/0x1490 drivers/net/netdevsim/dev.c:1534
#6: ffffffff8f2f63c8 (rtnl_mutex){+.+.}-{3:3}, at: nsim_init_netdevsim drivers/net/netdevsim/netdev.c:368 [inline]
#6: ffffffff8f2f63c8 (rtnl_mutex){+.+.}-{3:3}, at: nsim_create+0x414/0x600 drivers/net/netdevsim/netdev.c:434
2 locks held by syz-executor.4/9928:
#0: ffff88807b572678 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: __netlink_dump_start+0x154/0x9b0 net/netlink/af_netlink.c:2350
#1: ffffffff8f2f63c8 (rtnl_mutex){+.+.}-{3:3}, at: netlink_dump+0x58c/0xe00 net/netlink/af_netlink.c:2268
4 locks held by kvm-nx-lpage-re/9934:
#0: ffffffff8d800f88 (cgroup_mutex){+.+.}-{3:3}, at: cgroup_lock include/linux/cgroup.h:368 [inline]
#0: ffffffff8d800f88 (cgroup_mutex){+.+.}-{3:3}, at: cgroup_attach_task_all+0x25/0x130 kernel/cgroup/cgroup-v1.c:61
#1: ffffffff8d653cb0 (cpu_hotplug_lock){++++}-{0:0}, at: cgroup_attach_lock+0x12/0x40 kernel/cgroup/cgroup.c:2413
#2: ffffffff8d800d50 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: cgroup_attach_lock kernel/cgroup/cgroup.c:2415 [inline]
#2: ffffffff8d800d50 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: cgroup_attach_lock+0x37/0x40 kernel/cgroup/cgroup.c:2411
#3: ffffffff8d7bc4b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#3: ffffffff8d7bc4b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x403/0x7a0 kernel/rcu/tree_exp.h:939
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #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:222 [inline]
watchdog+0xf86/0x1210 kernel/hung_task.c:379
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:243
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7777 Comm: syz-executor.3 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__kasan_check_read+0x8/0x20 mm/kasan/shadow.c:31
Code: 60 48 c7 c7 58 00 fe 8c 5b 5d 41 5c e9 51 91 86 ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 0c 24 <89> f6 31 d2 e9 2f f1 ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f
RSP: 0018:ffffc900049877e8 EFLAGS: 00000007
RAX: 0000000000000003 RBX: 00000000000000ed RCX: ffffffff816a5d5e
RDX: 1ffff1100d8cd524 RSI: 0000000000000008 RDI: ffffffff93da7198
RBP: ffffc90004987940 R08: 0000000000000000 R09: fffffbfff27b4e3b
R10: ffffffff93da71df R11: 0000000000000002 R12: ffff88806c669e00
R13: 0000000000000004 R14: 0000000000000002 R15: 1ffff92000930f06
FS: 00007f94861e96c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000564615289038 CR3: 000000001cf94000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
hlock_class+0x4e/0x130 kernel/locking/lockdep.c:228
mark_lock+0xb5/0xc60 kernel/locking/lockdep.c:4656
mark_held_locks+0x9f/0xe0 kernel/locking/lockdep.c:4274
__trace_hardirqs_on_caller kernel/locking/lockdep.c:4292 [inline]
lockdep_hardirqs_on_prepare+0x137/0x420 kernel/locking/lockdep.c:4359
trace_hardirqs_on+0x36/0x40 kernel/trace/trace_preemptirq.c:61
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
_raw_spin_unlock_irqrestore+0x52/0x80 kernel/locking/spinlock.c:194
__debug_check_no_obj_freed lib/debugobjects.c:998 [inline]
debug_check_no_obj_freed+0x328/0x600 lib/debugobjects.c:1019
remove_vm_area+0x1ae/0x3f0 mm/vmalloc.c:2773
vunmap mm/vmalloc.c:2941 [inline]
vunmap+0x55/0xa0 mm/vmalloc.c:2932
relay_destroy_buf+0x6e/0x3e0 kernel/relay.c:199
relay_remove_buf kernel/relay.c:221 [inline]
kref_put include/linux/kref.h:65 [inline]
relay_close_buf+0x156/0x1b0 kernel/relay.c:430
relay_open+0x740/0xac0 kernel/relay.c:530
do_blk_trace_setup+0x4a9/0xaa0 kernel/trace/blktrace.c:591
__blk_trace_setup+0xd8/0x180 kernel/trace/blktrace.c:631
blk_trace_ioctl+0x163/0x290 kernel/trace/blktrace.c:741
blkdev_ioctl+0x111/0x770 block/ioctl.c:629
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:904 [inline]
__se_sys_ioctl fs/ioctl.c:890 [inline]
__x64_sys_ioctl+0x193/0x220 fs/ioctl.c:890
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f948547dda9
Code: Unable to access opcode bytes at 0x7f948547dd7f.
RSP: 002b:00007f94861e90c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f94855abf80 RCX: 00007f948547dda9
RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003
RBP: 00007f94854ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f94855abf80 R15: 00007fff2fdf94f8