EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue 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.3:6837 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.3 D27552 6837 15546 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 schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common+0x29c/0x470 kernel/sched/completion.c:115 kthread_stop+0x109/0x6b0 kernel/kthread.c:588 ext4_fill_super+0x791e/0xc850 fs/ext4/super.c:4646 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 mount_fs+0xa3/0x310 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2492 [inline] do_mount+0x115c/0x2f50 fs/namespace.c:2822 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f17006cf3ca Code: Bad RIP value. RSP: 002b:00007f16ff042f88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f17006cf3ca RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f16ff042fe0 RBP: 00007f16ff043020 R08: 00007f16ff043020 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f16ff042fe0 R15: 0000000020013c00 Showing all locks held in the system: 1 lock held by khungtaskd/1569: #0: 000000006592368f (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7841: 2 locks held by agetty/8042: #0: 000000006fbbffed (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 0000000067f6ed91 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1950 drivers/tty/n_tty.c:2154 2 locks held by agetty/6185: #0: 00000000e67c3183 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000a06b54b8 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1950 drivers/tty/n_tty.c:2154 1 lock held by syz-executor.3/6837: #0: 000000006663c085 (&type->s_umount_key#25/1){+.+.}, at: alloc_super fs/super.c:226 [inline] #0: 000000006663c085 (&type->s_umount_key#25/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1569 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: 4690 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:___bpf_prog_run+0x30/0x4e80 kernel/bpf/core.c:1196 Code: 41 56 49 89 f6 41 55 49 89 c5 41 54 49 c1 ed 03 49 c7 c4 60 b4 6f 88 55 48 89 fd 53 48 bb 00 00 00 00 00 fc ff df 48 83 ec 38 <49> 01 dd c7 44 24 0c 00 00 00 00 48 89 44 24 18 e8 8b 4e f6 ff 4c RSP: 0018:ffff8880a122fa30 EFLAGS: 00000286 RAX: ffff8880a122fb10 RBX: dffffc0000000000 RCX: ffffffff8162b98c RDX: ffff8880a122fac0 RSI: ffffc90001a9d038 RDI: ffff8880a122fb00 RBP: ffff8880a122fb00 R08: 0000000000000000 R09: 000000007fff0000 R10: 0000000000000004 R11: 0000000000000000 R12: ffffffff886fb460 R13: 1ffff11014245f62 R14: ffffc90001a9d038 R15: 000000007fff0000 FS: 00007f81701c48c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f816cfad000 CR3: 00000000a1b53000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ---------------- Code disassembly (best guess): 0: 41 56 push %r14 2: 49 89 f6 mov %rsi,%r14 5: 41 55 push %r13 7: 49 89 c5 mov %rax,%r13 a: 41 54 push %r12 c: 49 c1 ed 03 shr $0x3,%r13 10: 49 c7 c4 60 b4 6f 88 mov $0xffffffff886fb460,%r12 17: 55 push %rbp 18: 48 89 fd mov %rdi,%rbp 1b: 53 push %rbx 1c: 48 bb 00 00 00 00 00 movabs $0xdffffc0000000000,%rbx 23: fc ff df 26: 48 83 ec 38 sub $0x38,%rsp * 2a: 49 01 dd add %rbx,%r13 <-- trapping instruction 2d: c7 44 24 0c 00 00 00 movl $0x0,0xc(%rsp) 34: 00 35: 48 89 44 24 18 mov %rax,0x18(%rsp) 3a: e8 8b 4e f6 ff callq 0xfff64eca 3f: 4c rex.WR