x_tables: duplicate underflow at hook 1 ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 INFO: task syz-executor.5:23939 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D29488 23939 8131 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 request_wait_answer+0x3dc/0x750 fs/fuse/dev.c:485 __fuse_request_send+0x123/0x1c0 fs/fuse/dev.c:505 fuse_simple_request+0x2e6/0x820 fs/fuse/dev.c:576 fuse_do_getattr+0x230/0xc50 fs/fuse/dir.c:927 fuse_update_get_attr fs/fuse/dir.c:960 [inline] fuse_getattr+0x261/0x2e0 fs/fuse/dir.c:1838 vfs_getattr_nosec+0xff/0x160 fs/stat.c:79 vfs_getattr fs/stat.c:116 [inline] vfs_statx+0x15a/0x210 fs/stat.c:189 vfs_fstatat include/linux/fs.h:3143 [inline] __do_sys_newfstatat fs/stat.c:364 [inline] __se_sys_newfstatat+0x9e/0x120 fs/stat.c:358 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f6fba191ae9 Code: Bad RIP value. RSP: 002b:00007f6fb7641188 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 00007f6fba2a53e0 RCX: 00007f6fba191ae9 RDX: 00000000200006c0 RSI: 0000000020000680 RDI: ffffffffffffff9c RBP: 00007f6fba1ebf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffdfe874bf R14: 00007f6fb7641300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1571: #0: 000000008b407cea (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7859: 2 locks held by kworker/u4:5/9428: #0: 00000000068df638 (&rq->lock){-.-.}, at: idle_balance kernel/sched/fair.c:9702 [inline] #0: 00000000068df638 (&rq->lock){-.-.}, at: pick_next_task_fair+0x556/0x1570 kernel/sched/fair.c:6841 #1: 000000008b407cea (rcu_read_lock){....}, at: cpu_of kernel/sched/sched.h:923 [inline] #1: 000000008b407cea (rcu_read_lock){....}, at: __update_idle_core+0x39/0x3e0 kernel/sched/fair.c:6057 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1571 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 10 Comm: rcu_preempt Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:trace_hardirqs_off+0x26/0x200 kernel/trace/trace_preemptirq.c:37 Code: 0f 1f 40 00 41 56 41 55 41 54 55 53 e8 03 d8 fa ff 65 8b 1d bc be 9a 7e 31 ff 89 de e8 63 d9 fa ff 85 db 75 3e e8 ea d7 fa ff <65> c7 05 9f be 9a 7e 01 00 00 00 65 8b 1d b8 31 9a 7e 81 e3 00 00 RSP: 0018:ffff8880b5a67bf8 EFLAGS: 00000093 RAX: ffff8880b5a4e280 RBX: 0000000000000000 RCX: ffffffff8167ad7d RDX: 0000000000000000 RSI: ffffffff8167ad86 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000293 R13: 1ffff11016b4cf8e R14: ffff8880ba022b40 R15: 00000000ffffffff FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3802357000 CR3: 00000000a170f000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: del_timer_sync+0x86/0x270 kernel/time/timer.c:1294 schedule_timeout+0x4d7/0xfe0 kernel/time/timer.c:1819 rcu_gp_kthread+0xdad/0x21c0 kernel/rcu/tree.c:2202 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 ---------------- Code disassembly (best guess): 0: 0f 1f 40 00 nopl 0x0(%rax) 4: 41 56 push %r14 6: 41 55 push %r13 8: 41 54 push %r12 a: 55 push %rbp b: 53 push %rbx c: e8 03 d8 fa ff callq 0xfffad814 11: 65 8b 1d bc be 9a 7e mov %gs:0x7e9abebc(%rip),%ebx # 0x7e9abed4 18: 31 ff xor %edi,%edi 1a: 89 de mov %ebx,%esi 1c: e8 63 d9 fa ff callq 0xfffad984 21: 85 db test %ebx,%ebx 23: 75 3e jne 0x63 25: e8 ea d7 fa ff callq 0xfffad814 * 2a: 65 c7 05 9f be 9a 7e movl $0x1,%gs:0x7e9abe9f(%rip) # 0x7e9abed4 <-- trapping instruction 31: 01 00 00 00 35: 65 8b 1d b8 31 9a 7e mov %gs:0x7e9a31b8(%rip),%ebx # 0x7e9a31f4 3c: 81 .byte 0x81 3d: e3 00 jrcxz 0x3f