INFO: task syz-executor.3:32732 blocked for more than 143 seconds. Not tainted 5.16.0-next-20220111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:28112 pid:32732 ppid: 3641 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:4986 [inline] __schedule+0xab2/0x4e90 kernel/sched/core.c:6296 schedule+0xd2/0x260 kernel/sched/core.c:6369 rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1032 __down_read_common kernel/locking/rwsem.c:1214 [inline] __down_read kernel/locking/rwsem.c:1223 [inline] down_read+0xe2/0x440 kernel/locking/rwsem.c:1463 mmap_read_lock include/linux/mmap_lock.h:117 [inline] exit_mm kernel/exit.c:483 [inline] do_exit+0x91f/0x2b10 kernel/exit.c:793 do_group_exit+0xd2/0x2f0 kernel/exit.c:935 __do_sys_exit_group kernel/exit.c:946 [inline] __se_sys_exit_group kernel/exit.c:944 [inline] __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:944 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+0x44/0xae RIP: 0033:0x7f48612d4e99 RSP: 002b:00007ffc7b295fb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007f48612d4e99 RDX: 00007f4861287adb RSI: ffffffffffffffbc RDI: 0000000000000000 RBP: 0000000000000000 R08: 00007ffc7b3b4080 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffc7b2960a0 INFO: task syz-executor.3:32734 blocked for more than 143 seconds. Not tainted 5.16.0-next-20220111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:28064 pid:32734 ppid: 3641 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4986 [inline] __schedule+0xab2/0x4e90 kernel/sched/core.c:6296 schedule+0xd2/0x260 kernel/sched/core.c:6369 rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1032 __down_read_common kernel/locking/rwsem.c:1214 [inline] __down_read kernel/locking/rwsem.c:1223 [inline] down_read+0xe2/0x440 kernel/locking/rwsem.c:1463 mmap_read_lock include/linux/mmap_lock.h:117 [inline] exit_mm kernel/exit.c:483 [inline] do_exit+0x91f/0x2b10 kernel/exit.c:793 do_group_exit+0xd2/0x2f0 kernel/exit.c:935 get_signal+0x4b0/0x28c0 kernel/signal.c:2862 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f48612d4e99 RSP: 002b:00007f485fc4a218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f48613e7f68 RCX: 00007f48612d4e99 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f48613e7f68 RBP: 00007f48613e7f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f48613e7f6c R13: 00007ffc7b295d7f R14: 00007f485fc4a300 R15: 0000000000022000 INFO: task syz-executor.3:32738 blocked for more than 144 seconds. Not tainted 5.16.0-next-20220111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:29176 pid:32738 ppid: 3641 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4986 [inline] __schedule+0xab2/0x4e90 kernel/sched/core.c:6296 schedule+0xd2/0x260 kernel/sched/core.c:6369 rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1032 __down_read_common kernel/locking/rwsem.c:1214 [inline] __down_read kernel/locking/rwsem.c:1223 [inline] down_read+0xe2/0x440 kernel/locking/rwsem.c:1463 mmap_read_lock include/linux/mmap_lock.h:117 [inline] exit_mm kernel/exit.c:483 [inline] do_exit+0x91f/0x2b10 kernel/exit.c:793 do_group_exit+0xd2/0x2f0 kernel/exit.c:935 get_signal+0x4b0/0x28c0 kernel/signal.c:2862 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f48612d4e99 RSP: 002b:00007f485fc29218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f48613e8038 RCX: 00007f48612d4e99 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f48613e8038 RBP: 00007f48613e8030 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f48613e803c R13: 00007ffc7b295d7f R14: 00007f485fc29300 R15: 0000000000022000 INFO: task syz-executor.3:32740 can't die for more than 144 seconds. task:syz-executor.3 state:R running task stack:28512 pid:32740 ppid: 3641 flags:0x00004006 Call Trace: INFO: task syz-executor.3:32741 blocked for more than 145 seconds. Not tainted 5.16.0-next-20220111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:27440 pid:32741 ppid: 3641 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4986 [inline] __schedule+0xab2/0x4e90 kernel/sched/core.c:6296 schedule+0xd2/0x260 kernel/sched/core.c:6369 rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1032 __down_read_common kernel/locking/rwsem.c:1214 [inline] __down_read kernel/locking/rwsem.c:1223 [inline] down_read+0xe2/0x440 kernel/locking/rwsem.c:1463 mmap_read_lock include/linux/mmap_lock.h:117 [inline] exit_mm kernel/exit.c:483 [inline] do_exit+0x91f/0x2b10 kernel/exit.c:793 do_group_exit+0xd2/0x2f0 kernel/exit.c:935 get_signal+0x4b0/0x28c0 kernel/signal.c:2862 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f48612d4e99 RSP: 002b:00007f485fbe7218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f48613e81d8 RCX: 00007f48612d4e99 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f48613e81d8 RBP: 00007f48613e81d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f48613e81dc R13: 00007ffc7b295d7f R14: 00007f485fbe7300 R15: 0000000000022000 INFO: task syz-executor.3:32742 blocked for more than 145 seconds. Not tainted 5.16.0-next-20220111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:29448 pid:32742 ppid: 3641 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:4986 [inline] __schedule+0xab2/0x4e90 kernel/sched/core.c:6296 schedule+0xd2/0x260 kernel/sched/core.c:6369 rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1032 __down_read_common kernel/locking/rwsem.c:1214 [inline] __down_read kernel/locking/rwsem.c:1223 [inline] down_read+0xe2/0x440 kernel/locking/rwsem.c:1463 mmap_read_lock include/linux/mmap_lock.h:117 [inline] exit_mm kernel/exit.c:483 [inline] do_exit+0x91f/0x2b10 kernel/exit.c:793 do_group_exit+0xd2/0x2f0 kernel/exit.c:935 get_signal+0x4b0/0x28c0 kernel/signal.c:2862 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f48612d4e99 RSP: 002b:00007f485fbc6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: fffffffffffffffc RBX: 00007f48613e82a0 RCX: 00007f48612d4e99 RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000020ffc000 RBP: 00007f486132eff1 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc7b295d7f R14: 00007f485fbc6300 R15: 0000000000022000 INFO: task syz-executor.3:32743 blocked for more than 146 seconds. Not tainted 5.16.0-next-20220111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:29504 pid:32743 ppid: 3641 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4986 [inline] __schedule+0xab2/0x4e90 kernel/sched/core.c:6296 schedule+0xd2/0x260 kernel/sched/core.c:6369 rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1032 __down_read_common kernel/locking/rwsem.c:1214 [inline] __down_read kernel/locking/rwsem.c:1223 [inline] down_read+0xe2/0x440 kernel/locking/rwsem.c:1463 mmap_read_lock include/linux/mmap_lock.h:117 [inline] exit_mm kernel/exit.c:483 [inline] do_exit+0x91f/0x2b10 kernel/exit.c:793 do_group_exit+0xd2/0x2f0 kernel/exit.c:935 get_signal+0x4b0/0x28c0 kernel/signal.c:2862 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f48612d4e99 RSP: 002b:00007f485fba5218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f48613e8378 RCX: 00007f48612d4e99 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f48613e8378 RBP: 00007f48613e8370 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f48613e837c R13: 00007ffc7b295d7f R14: 00007f485fba5300 R15: 0000000000022000 INFO: task syz-executor.3:32744 can't die for more than 146 seconds. task:syz-executor.3 state:D stack:30328 pid:32744 ppid: 3641 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4986 [inline] __schedule+0xab2/0x4e90 kernel/sched/core.c:6296 schedule+0xd2/0x260 kernel/sched/core.c:6369 rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1032 __down_read_common kernel/locking/rwsem.c:1214 [inline] __down_read kernel/locking/rwsem.c:1223 [inline] down_read+0xe2/0x440 kernel/locking/rwsem.c:1463 mmap_read_lock include/linux/mmap_lock.h:117 [inline] do_user_addr_fault+0x9d6/0x11c0 arch/x86/mm/fault.c:1348 handle_page_fault arch/x86/mm/fault.c:1484 [inline] exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1540 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:568 RIP: 0033:0x7f486127bdd4 RSP: 002b:00007f485fb84190 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007f48613352aa RDX: 00000000002f95a0 RSI: 00000000200000c0 RDI: 00007f486132df35 RBP: 00007f486132eff1 R08: 0000000000000ce3 R09: 00007ffc7b3b4080 R10: 00007ffc7b3b4090 R11: 0000000000095ff2 R12: 0000000000000000 R13: 00007ffc7b295d7f R14: 00007f485fb84300 R15: 0000000000022000 INFO: task syz-executor.3:32744 blocked for more than 147 seconds. Not tainted 5.16.0-next-20220111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:30328 pid:32744 ppid: 3641 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4986 [inline] __schedule+0xab2/0x4e90 kernel/sched/core.c:6296 schedule+0xd2/0x260 kernel/sched/core.c:6369 rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1032 __down_read_common kernel/locking/rwsem.c:1214 [inline] __down_read kernel/locking/rwsem.c:1223 [inline] down_read+0xe2/0x440 kernel/locking/rwsem.c:1463 mmap_read_lock include/linux/mmap_lock.h:117 [inline] do_user_addr_fault+0x9d6/0x11c0 arch/x86/mm/fault.c:1348 handle_page_fault arch/x86/mm/fault.c:1484 [inline] exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1540 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:568 RIP: 0033:0x7f486127bdd4 RSP: 002b:00007f485fb84190 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007f48613352aa RDX: 00000000002f95a0 RSI: 00000000200000c0 RDI: 00007f486132df35 RBP: 00007f486132eff1 R08: 0000000000000ce3 R09: 00007ffc7b3b4080 R10: 00007ffc7b3b4090 R11: 0000000000095ff2 R12: 0000000000000000 R13: 00007ffc7b295d7f R14: 00007f485fb84300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffffffff8bb839e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460 2 locks held by getty/3288: #0: ffff888023939098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244 #1: ffffc90002b962e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2077 1 lock held by syz-executor.3/32732: #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline] #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline] #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2b10 kernel/exit.c:793 1 lock held by syz-executor.3/32734: #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline] #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline] #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2b10 kernel/exit.c:793 1 lock held by syz-executor.3/32738: #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline] #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline] #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2b10 kernel/exit.c:793 2 locks held by syz-executor.3/32740: 1 lock held by syz-executor.3/32741: #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline] #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline] #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2b10 kernel/exit.c:793 1 lock held by syz-executor.3/32742: #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline] #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline] #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2b10 kernel/exit.c:793 1 lock held by syz-executor.3/32743: #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline] #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline] #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2b10 kernel/exit.c:793 1 lock held by syz-executor.3/32744: #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline] #0: ffff888023206a28 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x9d6/0x11c0 arch/x86/mm/fault.c:1348 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.16.0-next-20220111-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+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:256 [inline] watchdog+0xcb7/0xed0 kernel/hung_task.c:413 kthread+0x2e9/0x3a0 kernel/kthread.c:377 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: 2976 Comm: udevd Not tainted 5.16.0-next-20220111-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:155 [inline] RIP: 0010:unwind_next_frame+0x202/0x1ce0 arch/x86/kernel/unwind_orc.c:443 Code: 4d 85 ff 0f 84 cf 01 00 00 49 81 ff 00 00 00 81 0f 82 41 01 00 00 49 81 ff d0 76 80 89 0f 83 34 01 00 00 44 8b 1d ee f1 24 0a <4c> 89 fe 48 81 ee 00 00 00 81 48 c1 ee 08 41 8d 43 ff 39 c6 0f 83 RSP: 0018:ffffc90001b2f8e0 EFLAGS: 00000287 RAX: 0000000000000000 RBX: 1ffff92000365f24 RCX: 1ffff92000365f40 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff88807d6731a0 RBP: 0000000000000001 R08: ffffffff8b9fa7e0 R09: 0000000000000001 R10: fffff52000365f42 R11: 0000000000088078 R12: ffffc90001b2fa00 R13: ffffc90001b2f9ed R14: ffffc90001b2f9b8 R15: ffffffff81c2840a FS: 00007f13abb62840(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f767515b600 CR3: 0000000022124000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122 kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:45 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:366 [inline] ____kasan_slab_free+0x166/0x1a0 mm/kasan/common.c:328 kasan_slab_free include/linux/kasan.h:236 [inline] slab_free_hook mm/slub.c:1728 [inline] slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1754 slab_free mm/slub.c:3509 [inline] kmem_cache_free+0xdb/0x3b0 mm/slub.c:3526 putname fs/namei.c:270 [inline] putname+0xfe/0x140 fs/namei.c:256 do_unlinkat+0x11f/0x650 fs/namei.c:4241 __do_sys_unlink fs/namei.c:4266 [inline] __se_sys_unlink fs/namei.c:4264 [inline] __x64_sys_unlink+0xc6/0x110 fs/namei.c:4264 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+0x44/0xae RIP: 0033:0x7f13abcbb2d7 Code: f0 ff ff 73 01 c3 48 8b 0d 9e db 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 71 db 0c 00 f7 d8 64 89 01 48 RSP: 002b:00007fff1ed08318 EFLAGS: 00000202 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f13abcbb2d7 RDX: 0000000000000000 RSI: 00000000cdd09940 RDI: 00007f13ac11f0d8 RBP: 00007f13acd6e210 R08: 00000000cddbf6bf R09: 00007fff1ed7a080 R10: 00007fff1ed7a090 R11: 0000000000000202 R12: 0000000000000bb8 R13: 00007f13acd78bf0 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 4d 85 ff test %r15,%r15 3: 0f 84 cf 01 00 00 je 0x1d8 9: 49 81 ff 00 00 00 81 cmp $0xffffffff81000000,%r15 10: 0f 82 41 01 00 00 jb 0x157 16: 49 81 ff d0 76 80 89 cmp $0xffffffff898076d0,%r15 1d: 0f 83 34 01 00 00 jae 0x157 23: 44 8b 1d ee f1 24 0a mov 0xa24f1ee(%rip),%r11d # 0xa24f218 * 2a: 4c 89 fe mov %r15,%rsi <-- trapping instruction 2d: 48 81 ee 00 00 00 81 sub $0xffffffff81000000,%rsi 34: 48 c1 ee 08 shr $0x8,%rsi 38: 41 8d 43 ff lea -0x1(%r11),%eax 3c: 39 c6 cmp %eax,%esi 3e: 0f .byte 0xf 3f: 83 .byte 0x83