INFO: task syz.8.25:4760 blocked for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.25 state:D stack:28976 pid:4760 ppid:4605 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x11d1/0x40e0 kernel/sched/core.c:6562
schedule+0xb9/0x180 kernel/sched/core.c:6638
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6697
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x562/0xaf0 kernel/locking/mutex.c:747
blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
blkdev_common_ioctl+0xfb8/0x2090 block/ioctl.c:546
blkdev_ioctl+0x2d8/0x740 block/ioctl.c:620
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe94d79ce59
RSP: 002b:00007fe94cddd028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fe94da16090 RCX: 00007fe94d79ce59
RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000004
RBP: 00007fe94d832d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe94da16128 R14: 00007fe94da16090 R15: 00007ffd9df25808
INFO: task syz.7.24:4768 blocked for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.24 state:D stack:27856 pid:4768 ppid:4602 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x11d1/0x40e0 kernel/sched/core.c:6562
schedule+0xb9/0x180 kernel/sched/core.c:6638
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6697
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x562/0xaf0 kernel/locking/mutex.c:747
blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
blkdev_ioctl+0x1b2/0x740 block/ioctl.c:615
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb9a359ce59
RSP: 002b:00007fb9a44a7028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fb9a3815fa0 RCX: 00007fb9a359ce59
RDX: 0000200000000380 RSI: 00000000c0481273 RDI: 0000000000000004
RBP: 00007fb9a3632d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb9a3816038 R14: 00007fb9a3815fa0 R15: 00007fff71ce4128
INFO: task syz.7.24:4769 blocked for more than 144 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.24 state:D stack:28120 pid:4769 ppid:4602 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x11d1/0x40e0 kernel/sched/core.c:6562
schedule+0xb9/0x180 kernel/sched/core.c:6638
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6697
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x562/0xaf0 kernel/locking/mutex.c:747
blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
blkdev_common_ioctl+0xfb8/0x2090 block/ioctl.c:546
blkdev_ioctl+0x2d8/0x740 block/ioctl.c:620
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb9a359ce59
RSP: 002b:00007fb9a4486028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fb9a3816090 RCX: 00007fb9a359ce59
RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000004
RBP: 00007fb9a3632d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb9a3816128 R14: 00007fb9a3816090 R15: 00007fff71ce4128
INFO: task syz.9.26:4771 blocked for more than 144 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.9.26 state:D stack:27728 pid:4771 ppid:4606 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x11d1/0x40e0 kernel/sched/core.c:6562
schedule+0xb9/0x180 kernel/sched/core.c:6638
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6697
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x562/0xaf0 kernel/locking/mutex.c:747
blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
blkdev_ioctl+0x1b2/0x740 block/ioctl.c:615
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7eff1039ce59
RSP: 002b:00007eff112fb028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007eff10615fa0 RCX: 00007eff1039ce59
RDX: 0000200000000380 RSI: 00000000c0481273 RDI: 0000000000000004
RBP: 00007eff10432d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007eff10616038 R14: 00007eff10615fa0 R15: 00007fffe3bc75d8
INFO: task syz.9.26:4772 blocked for more than 145 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.9.26 state:D stack:28528 pid:4772 ppid:4606 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x11d1/0x40e0 kernel/sched/core.c:6562
schedule+0xb9/0x180 kernel/sched/core.c:6638
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6697
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x562/0xaf0 kernel/locking/mutex.c:747
blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
blkdev_common_ioctl+0xfb8/0x2090 block/ioctl.c:546
blkdev_ioctl+0x2d8/0x740 block/ioctl.c:620
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7eff1039ce59
RSP: 002b:00007eff112da028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007eff10616090 RCX: 00007eff1039ce59
RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000004
RBP: 00007eff10432d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007eff10616128 R14: 00007eff10616090 R15: 00007fffe3bc75d8
INFO: task syz.2.27:4824 blocked for more than 146 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.27 state:D stack:27856 pid:4824 ppid:4726 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x11d1/0x40e0 kernel/sched/core.c:6562
schedule+0xb9/0x180 kernel/sched/core.c:6638
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6697
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x562/0xaf0 kernel/locking/mutex.c:747
blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
blkdev_ioctl+0x1b2/0x740 block/ioctl.c:615
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f4f02d9ce59
RSP: 002b:00007f4f03be0028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4f03015fa0 RCX: 00007f4f02d9ce59
RDX: 0000200000000380 RSI: 00000000c0481273 RDI: 0000000000000004
RBP: 00007f4f02e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4f03016038 R14: 00007f4f03015fa0 R15: 00007ffc668a0808
INFO: task syz.2.27:4827 blocked for more than 146 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.27 state:D stack:28976 pid:4827 ppid:4726 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x11d1/0x40e0 kernel/sched/core.c:6562
schedule+0xb9/0x180 kernel/sched/core.c:6638
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6697
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x562/0xaf0 kernel/locking/mutex.c:747
blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
blkdev_common_ioctl+0xfb8/0x2090 block/ioctl.c:546
blkdev_ioctl+0x2d8/0x740 block/ioctl.c:620
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f4f02d9ce59
RSP: 002b:00007f4f03bbf028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4f03016090 RCX: 00007f4f02d9ce59
RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000004
RBP: 00007f4f02e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4f03016128 R14: 00007f4f03016090 R15: 00007ffc668a0808
Showing all locks held in the system:
4 locks held by kworker/u4:0/9:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cb2e770 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00 kernel/rcu/tasks.h:517
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cb2ef90 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00 kernel/rcu/tasks.h:517
1 lock held by khungtaskd/27:
#0: ffffffff8cb2dde0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
#0: ffffffff8cb2dde0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
#0: ffffffff8cb2dde0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6513
2 locks held by kworker/u4:2/31:
2 locks held by getty/4028:
#0: ffff88814d6ef098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc9000327b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x429/0x1390 drivers/tty/n_tty.c:2198
2 locks held by kworker/1:9/4384:
#0: ffff888017472138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7b0/0x1160 kernel/workqueue.c:2267
#1: ffffc900032d7d00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7b0/0x1160 kernel/workqueue.c:2267
3 locks held by kworker/1:11/4386:
#0: ffff88814d5ef938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7b0/0x1160 kernel/workqueue.c:2267
#1: ffffc900032c7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7b0/0x1160 kernel/workqueue.c:2267
#2: ffffffff8dd48728 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xca/0x14f0 net/ipv6/addrconf.c:4131
3 locks held by kworker/0:10/4463:
#0: ffff88814d5ef938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7b0/0x1160 kernel/workqueue.c:2267
#1: ffffc90003537d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7b0/0x1160 kernel/workqueue.c:2267
#2: ffffffff8dd48728 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xca/0x14f0 net/ipv6/addrconf.c:4131
4 locks held by syz.8.25/4759:
1 lock held by syz.8.25/4760:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.7.24/4768:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.7.24/4769:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.9.26/4771:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.9.26/4772:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.2.27/4824:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.2.27/4827:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.0.28/5047:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.0.28/5049:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.1.29/5078:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.1.29/5079:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.4.31/5086:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.4.31/5088:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.3.30/5092:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.3.30/5094:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.5.32/5099:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.5.32/5100:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.6.33/5120:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.6.33/5121:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.8.34/5176:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.8.34/5177:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.7.35/5204:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.7.35/5206:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.9.36/5212:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.9.36/5215:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.2.37/5214:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.2.37/5216:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.0.38/5218:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.0.38/5219:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.1.39/5241:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.1.39/5243:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.4.40/5272:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.4.40/5273:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.5.42/5315:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.5.42/5316:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.3.41/5323:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.3.41/5324:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.6.43/5329:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.6.43/5330:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.8.44/5351:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.8.44/5352:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.7.45/5372:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.7.45/5373:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.9.46/5403:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.9.46/5404:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.2.47/5425:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.2.47/5426:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.0.48/5430:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.0.48/5431:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.1.49/5442:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.1.49/5443:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.4.50/5464:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.4.50/5465:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz-executor/5477:
#0: ffffffff8dd48728 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8dd48728 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x824/0xfc0 net/core/rtnetlink.c:6154
1 lock held by syz-executor/5481:
#0: ffffffff8dd48728 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8dd48728 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x824/0xfc0 net/core/rtnetlink.c:6154
1 lock held by syz.5.51/5501:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
1 lock held by syz.5.51/5503:
#0: ffff888143b5ebd0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0x120/0x580 kernel/trace/blktrace.c:740
2 locks held by syz-executor/5502:
#0: ffffffff8dd48728 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8dd48728 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x824/0xfc0 net/core/rtnetlink.c:6154
#1: ffffffff8cb33ab8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
#1: ffffffff8cb33ab8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2ec/0x890 kernel/rcu/tree_exp.h:962
1 lock held by syz-executor/5513:
#0: ffffffff8dd48728 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8dd48728 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x824/0xfc0 net/core/rtnetlink.c:6154
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106
nmi_cpu_backtrace+0x3e6/0x460 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1d4/0x450 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xeee/0xf30 kernel/hung_task.c:377
kthread+0x29d/0x330 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4444 Comm: kworker/u4:6 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:check_region_inline mm/kasan/generic.c:169 [inline]
RIP: 0010:kasan_check_range+0x2/0x290 mm/kasan/generic.c:189
Code: c6 48 89 c7 e8 5f 2b 5b 08 31 c0 c3 0f 0b b8 ea ff ff ff c3 0f 0b b8 ea ff ff ff c3 00 00 cc cc 00 00 cc cc 00 00 cc cc b0 01 <48> 85 f6 0f 84 ac 01 00 00 55 41 57 41 56 41 54 53 49 89 f8 49 01
RSP: 0018:ffffc900034c73d8 EFLAGS: 00000246
RAX: 0000000000001101 RBX: 0000000000000200 RCX: ffffffff81d3698c
RDX: 0000000000000001 RSI: 0000000000000200 RDI: ffffc900034c7400
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed100519c94c
R10: dffffc0000000000 R11: fffff52000698f5e R12: ffff888017441dc0
R13: 0000000000000000 R14: ffffc900034c7400 R15: ffffc900034c7400
FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f81651435c0 CR3: 000000017d0f4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
memset+0x1e/0x40 mm/kasan/shadow.c:44
kasan_save_stack mm/kasan/common.c:43 [inline]
kasan_set_track+0x3c/0x70 mm/kasan/common.c:53
____kasan_kmalloc mm/kasan/common.c:375 [inline]
__kasan_kmalloc+0x8e/0xa0 mm/kasan/common.c:384
kasan_kmalloc include/linux/kasan.h:211 [inline]
__do_kmalloc_node mm/slab_common.c:936 [inline]
__kmalloc+0xb0/0x240 mm/slab_common.c:949
kmalloc include/linux/slab.h:568 [inline]
kzalloc include/linux/slab.h:699 [inline]
ieee802_11_parse_elems_full+0xb5/0x1220 net/mac80211/util.c:1503
ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2265 [inline]
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2272 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1605 [inline]
ieee80211_ibss_rx_queued_mgmt+0x3ed/0x2cd0 net/mac80211/ibss.c:1638
ieee80211_iface_process_skb net/mac80211/iface.c:1679 [inline]
ieee80211_iface_work+0x726/0xc80 net/mac80211/iface.c:1733
cfg80211_wiphy_work+0x221/0x260 net/wireless/core.c:433
process_one_work+0x8a2/0x1160 kernel/workqueue.c:2292
worker_thread+0xaa2/0x1270 kernel/workqueue.c:2439
kthread+0x29d/0x330 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295