INFO: task syz-executor.4:9922 blocked for more than 143 seconds. Not tainted 5.14.0-rc7-next-20210823-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:27704 pid: 9922 ppid: 7054 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4756 [inline] __schedule+0xbfd/0x11d0 kernel/sched/core.c:6029 schedule+0x14b/0x210 kernel/sched/core.c:6108 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6167 __mutex_lock_common+0xcff/0x2630 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:743 paste_selection+0x155/0x500 drivers/tty/vt/selection.c:390 vt_ioctl+0x455/0x37b0 drivers/tty/vt/vt_ioctl.c:760 tty_ioctl+0xf51/0x1720 drivers/tty/tty_io.c:2805 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 RSP: 002b:00007fbad1961188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffdb4f45d1f R14: 00007fbad1961300 R15: 0000000000022000 INFO: task syz-executor.2:9926 blocked for more than 143 seconds. Not tainted 5.14.0-rc7-next-20210823-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:28056 pid: 9926 ppid: 7055 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4756 [inline] __schedule+0xbfd/0x11d0 kernel/sched/core.c:6029 schedule+0x14b/0x210 kernel/sched/core.c:6108 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6167 __mutex_lock_common+0xcff/0x2630 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:743 paste_selection+0x155/0x500 drivers/tty/vt/selection.c:390 vt_ioctl+0x455/0x37b0 drivers/tty/vt/vt_ioctl.c:760 tty_ioctl+0xf51/0x1720 drivers/tty/tty_io.c:2805 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 RSP: 002b:00007f68ec34a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fffb8ceb56f R14: 00007f68ec34a300 R15: 0000000000022000 INFO: task syz-executor.0:9936 blocked for more than 144 seconds. Not tainted 5.14.0-rc7-next-20210823-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:28056 pid: 9936 ppid: 7052 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4756 [inline] __schedule+0xbfd/0x11d0 kernel/sched/core.c:6029 schedule+0x14b/0x210 kernel/sched/core.c:6108 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6167 __mutex_lock_common+0xcff/0x2630 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:743 paste_selection+0x155/0x500 drivers/tty/vt/selection.c:390 vt_ioctl+0x455/0x37b0 drivers/tty/vt/vt_ioctl.c:760 tty_ioctl+0xf51/0x1720 drivers/tty/tty_io.c:2805 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 RSP: 002b:00007fefe3514188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffe41822e7f R14: 00007fefe3514300 R15: 0000000000022000 INFO: task syz-executor.3:9944 blocked for more than 144 seconds. Not tainted 5.14.0-rc7-next-20210823-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:27704 pid: 9944 ppid: 7056 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4756 [inline] __schedule+0xbfd/0x11d0 kernel/sched/core.c:6029 schedule+0x14b/0x210 kernel/sched/core.c:6108 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6167 __mutex_lock_common+0xcff/0x2630 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:743 paste_selection+0x155/0x500 drivers/tty/vt/selection.c:390 vt_ioctl+0x455/0x37b0 drivers/tty/vt/vt_ioctl.c:760 tty_ioctl+0xf51/0x1720 drivers/tty/tty_io.c:2805 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 RSP: 002b:00007f04b97e1188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fff7ba90d8f R14: 00007f04b97e1300 R15: 0000000000022000 INFO: task syz-executor.0:9958 blocked for more than 145 seconds. Not tainted 5.14.0-rc7-next-20210823-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:27704 pid: 9958 ppid: 7052 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4756 [inline] __schedule+0xbfd/0x11d0 kernel/sched/core.c:6029 schedule+0x14b/0x210 kernel/sched/core.c:6108 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6167 __mutex_lock_common+0xcff/0x2630 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:743 paste_selection+0x155/0x500 drivers/tty/vt/selection.c:390 vt_ioctl+0x455/0x37b0 drivers/tty/vt/vt_ioctl.c:760 tty_ioctl+0xf51/0x1720 drivers/tty/tty_io.c:2805 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 RSP: 002b:00007fefe3514188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffe41822e7f R14: 00007fefe3514300 R15: 0000000000022000 INFO: task syz-executor.4:9959 blocked for more than 145 seconds. Not tainted 5.14.0-rc7-next-20210823-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:27704 pid: 9959 ppid: 7054 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4756 [inline] __schedule+0xbfd/0x11d0 kernel/sched/core.c:6029 schedule+0x14b/0x210 kernel/sched/core.c:6108 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6167 __mutex_lock_common+0xcff/0x2630 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:743 paste_selection+0x155/0x500 drivers/tty/vt/selection.c:390 vt_ioctl+0x455/0x37b0 drivers/tty/vt/vt_ioctl.c:760 tty_ioctl+0xf51/0x1720 drivers/tty/tty_io.c:2805 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 RSP: 002b:00007fbad1961188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffdb4f45d1f R14: 00007fbad1961300 R15: 0000000000022000 INFO: task syz-executor.5:9960 blocked for more than 146 seconds. Not tainted 5.14.0-rc7-next-20210823-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:27704 pid: 9960 ppid: 7051 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4756 [inline] __schedule+0xbfd/0x11d0 kernel/sched/core.c:6029 schedule+0x14b/0x210 kernel/sched/core.c:6108 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6167 __mutex_lock_common+0xcff/0x2630 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:743 paste_selection+0x155/0x500 drivers/tty/vt/selection.c:390 vt_ioctl+0x455/0x37b0 drivers/tty/vt/vt_ioctl.c:760 tty_ioctl+0xf51/0x1720 drivers/tty/tty_io.c:2805 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 RSP: 002b:00007fd675cab188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffc3265351f R14: 00007fd675cab300 R15: 0000000000022000 INFO: task syz-executor.1:9961 blocked for more than 146 seconds. Not tainted 5.14.0-rc7-next-20210823-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:27704 pid: 9961 ppid: 7053 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4756 [inline] __schedule+0xbfd/0x11d0 kernel/sched/core.c:6029 schedule+0x14b/0x210 kernel/sched/core.c:6108 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6167 __mutex_lock_common+0xcff/0x2630 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:743 paste_selection+0x155/0x500 drivers/tty/vt/selection.c:390 vt_ioctl+0x455/0x37b0 drivers/tty/vt/vt_ioctl.c:760 tty_ioctl+0xf51/0x1720 drivers/tty/tty_io.c:2805 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 RSP: 002b:00007fd1e554e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffeb21d6b1f R14: 00007fd1e554e300 R15: 0000000000022000 INFO: task syz-executor.2:9962 blocked for more than 147 seconds. Not tainted 5.14.0-rc7-next-20210823-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:27704 pid: 9962 ppid: 7055 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4756 [inline] __schedule+0xbfd/0x11d0 kernel/sched/core.c:6029 schedule+0x14b/0x210 kernel/sched/core.c:6108 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6167 __mutex_lock_common+0xcff/0x2630 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:743 paste_selection+0x155/0x500 drivers/tty/vt/selection.c:390 vt_ioctl+0x455/0x37b0 drivers/tty/vt/vt_ioctl.c:760 tty_ioctl+0xf51/0x1720 drivers/tty/tty_io.c:2805 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 RSP: 002b:00007f68ec34a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fffb8ceb56f R14: 00007f68ec34a300 R15: 0000000000022000 INFO: task syz-executor.1:9981 blocked for more than 147 seconds. Not tainted 5.14.0-rc7-next-20210823-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:27704 pid: 9981 ppid: 7053 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4756 [inline] __schedule+0xbfd/0x11d0 kernel/sched/core.c:6029 schedule+0x14b/0x210 kernel/sched/core.c:6108 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6167 __mutex_lock_common+0xcff/0x2630 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:743 paste_selection+0x155/0x500 drivers/tty/vt/selection.c:390 vt_ioctl+0x455/0x37b0 drivers/tty/vt/vt_ioctl.c:760 tty_ioctl+0xf51/0x1720 drivers/tty/tty_io.c:2805 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 RSP: 002b:00007fd1e554e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffeb21d6b1f R14: 00007fd1e554e300 R15: 0000000000022000 INFO: task syz-executor.4:10348 can't die for more than 148 seconds. task:syz-executor.4 state:D stack:27704 pid:10348 ppid: 7054 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4756 [inline] __schedule+0xbfd/0x11d0 kernel/sched/core.c:6029 schedule+0x14b/0x210 kernel/sched/core.c:6108 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6167 __mutex_lock_common+0xcff/0x2630 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:743 paste_selection+0x155/0x500 drivers/tty/vt/selection.c:390 vt_ioctl+0x455/0x37b0 drivers/tty/vt/vt_ioctl.c:760 tty_ioctl+0xf51/0x1720 drivers/tty/tty_io.c:2805 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 RSP: 002b:00007fbad1940188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665e9 RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038 R13: 00007ffdb4f45d1f R14: 00007fbad1940300 R15: 0000000000022000 INFO: task syz-executor.2:10349 can't die for more than 148 seconds. task:syz-executor.2 state:D stack:25784 pid:10349 ppid: 7055 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4756 [inline] __schedule+0xbfd/0x11d0 kernel/sched/core.c:6029 schedule+0x14b/0x210 kernel/sched/core.c:6108 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6167 __mutex_lock_common+0xcff/0x2630 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:743 paste_selection+0x155/0x500 drivers/tty/vt/selection.c:390 vt_ioctl+0x455/0x37b0 drivers/tty/vt/vt_ioctl.c:760 tty_ioctl+0xf51/0x1720 drivers/tty/tty_io.c:2805 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 RSP: 002b:00007f68ec329188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665e9 RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038 R13: 00007fffb8ceb56f R14: 00007f68ec329300 R15: 0000000000022000 INFO: lockdep is turned off. NMI backtrace for cpu 0 CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.14.0-rc7-next-20210823-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1ae/0x29f lib/dump_stack.c:106 nmi_cpu_backtrace+0x405/0x430 lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x16a/0x280 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:254 [inline] watchdog+0xec1/0xf10 kernel/hung_task.c:339 kthread+0x453/0x480 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 149 Comm: kworker/u4:2 Not tainted 5.14.0-rc7-next-20210823-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_nc_worker RIP: 0010:kasan_check_range+0x22a/0x2f0 mm/kasan/generic.c:189 Code: 4d 85 f6 49 0f 49 de 48 83 e3 f8 49 29 de 74 11 45 0f b6 1f 45 84 db 75 64 49 ff c7 49 ff ce 75 ef 5b 41 5c 41 5d 41 5e 41 5f 45 84 db 75 50 45 8a 59 01 45 84 db 0f 85 8a 00 00 00 45 8a 59 RSP: 0018:ffffc900010cfbd0 EFLAGS: 00000256 RAX: 1ffffffff1870201 RBX: ffff8880b9d32508 RCX: ffffffff816b5a38 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880b9d32508 RBP: ffff88807b6dcc40 R08: dffffc0000000000 R09: ffffed10173a64a2 R10: ffffed10173a64a2 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff888014588000 R14: ffffffff8c3817d8 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc384706000 CR3: 000000000c68e000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: instrument_atomic_read include/linux/instrumented.h:71 [inline] atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline] rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:330 [inline] rcu_is_watching+0x58/0xb0 kernel/rcu/tree.c:1121 rcu_read_lock include/linux/rcupdate.h:688 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:404 [inline] batadv_nc_worker+0xcd/0x5b0 net/batman-adv/network-coding.c:715 process_one_work+0x853/0x1140 kernel/workqueue.c:2297 worker_thread+0xac1/0x1320 kernel/workqueue.c:2444 kthread+0x453/0x480 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 ---------------- Code disassembly (best guess): 0: 4d 85 f6 test %r14,%r14 3: 49 0f 49 de cmovns %r14,%rbx 7: 48 83 e3 f8 and $0xfffffffffffffff8,%rbx b: 49 29 de sub %rbx,%r14 e: 74 11 je 0x21 10: 45 0f b6 1f movzbl (%r15),%r11d 14: 45 84 db test %r11b,%r11b 17: 75 64 jne 0x7d 19: 49 ff c7 inc %r15 1c: 49 ff ce dec %r14 1f: 75 ef jne 0x10 21: 5b pop %rbx 22: 41 5c pop %r12 24: 41 5d pop %r13 26: 41 5e pop %r14 28: 41 5f pop %r15 * 2a: c3 retq <-- trapping instruction 2b: 45 84 db test %r11b,%r11b 2e: 75 50 jne 0x80 30: 45 8a 59 01 mov 0x1(%r9),%r11b 34: 45 84 db test %r11b,%r11b 37: 0f 85 8a 00 00 00 jne 0xc7 3d: 45 rex.RB 3e: 8a .byte 0x8a 3f: 59 pop %rcx