block nbd4: shutting down sockets 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.0:7364 blocked for more than 140 seconds. Not tainted 4.19.204-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D28104 7364 8132 0x10000004 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 blk_mq_freeze_queue_wait+0x119/0x270 block/blk-mq.c:152 nbd_add_socket+0x168/0x840 drivers/block/nbd.c:973 __nbd_ioctl drivers/block/nbd.c:1320 [inline] nbd_ioctl+0x584/0xbe0 drivers/block/nbd.c:1387 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0x5cb/0x1a80 block/ioctl.c:601 block_ioctl+0xe9/0x130 fs/block_dev.c:1906 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: Bad RIP value. RSP: 002b:00007fec1b2a6188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000000000004 RSI: 000000000000ab00 RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffd177a137f R14: 00007fec1b2a6300 R15: 0000000000022000 INFO: task syz-executor.0:7426 blocked for more than 140 seconds. Not tainted 4.19.204-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D29840 7426 8132 0x10000004 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_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1015 [inline] __mutex_lock+0x604/0x1200 kernel/locking/mutex.c:1083 nbd_ioctl+0x151/0xbe0 drivers/block/nbd.c:1380 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0x5cb/0x1a80 block/ioctl.c:601 block_ioctl+0xe9/0x130 fs/block_dev.c:1906 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: Bad RIP value. RSP: 002b:00007fec1b264188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 00000000004665e9 RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c0f0 R13: 00007ffd177a137f R14: 00007fec1b264300 R15: 0000000000022000 INFO: task syz-executor.0:7428 blocked for more than 140 seconds. Not tainted 4.19.204-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D29040 7428 8132 0x10000004 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_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1015 [inline] __mutex_lock+0x604/0x1200 kernel/locking/mutex.c:1083 nbd_ioctl+0x151/0xbe0 drivers/block/nbd.c:1380 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0x5cb/0x1a80 block/ioctl.c:601 block_ioctl+0xe9/0x130 fs/block_dev.c:1906 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: Bad RIP value. RSP: 002b:00007fec1b243188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056c1a8 RCX: 00000000004665e9 RDX: 0000000000000500 RSI: 000000000000ab02 RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c1a8 R13: 00007ffd177a137f R14: 00007fec1b243300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1571: #0: 00000000d45280e8 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 2 locks held by agetty/7794: #0: 00000000b20faaaa (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 000000004eaf85b4 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1950 drivers/tty/n_tty.c:2154 1 lock held by syz-executor.0/7364: #0: 000000008b904357 (&nbd->config_lock){+.+.}, at: nbd_ioctl+0x151/0xbe0 drivers/block/nbd.c:1380 1 lock held by syz-executor.0/7426: #0: 000000008b904357 (&nbd->config_lock){+.+.}, at: nbd_ioctl+0x151/0xbe0 drivers/block/nbd.c:1380 1 lock held by syz-executor.0/7428: #0: 000000008b904357 (&nbd->config_lock){+.+.}, at: nbd_ioctl+0x151/0xbe0 drivers/block/nbd.c:1380 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1571 Comm: khungtaskd Not tainted 4.19.204-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: 4682 Comm: systemd-journal Not tainted 4.19.204-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:write_comp_data+0x6c/0x70 kernel/kcov.c:146 Code: 00 00 4e 8d 04 dd 28 00 00 00 4c 39 c6 72 1b 48 83 c7 01 4e 89 54 00 e0 4e 89 4c 00 e8 4a 89 54 00 f0 4a 89 4c d8 20 48 89 38 0f 1f 00 48 8b 0c 24 40 0f b6 d6 40 0f b6 f7 31 ff eb 80 48 8b RSP: 0018:ffff8880a1bc7ae0 EFLAGS: 00000093 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8167bac7 RDX: 0000000000000000 RSI: ffff8880a1bbc300 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880b2e00940 R13: ffff8880a1bc7b50 R14: ffff88813bff04c0 R15: 0000000000000282 FS: 00007ff8d30228c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff8cfc5b730 CR3: 00000000a1a87000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 00000000000006aa Call Trace: trace_hardirqs_off+0x47/0x200 kernel/trace/trace_preemptirq.c:39 qlink_free mm/kasan/quarantine.c:145 [inline] qlist_free_all+0x67/0x140 mm/kasan/quarantine.c:166 quarantine_reduce+0x1a9/0x230 mm/kasan/quarantine.c:259 kasan_kmalloc+0xa2/0x160 mm/kasan/kasan.c:538 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc mm/slab.c:3397 [inline] kmem_cache_alloc+0x110/0x370 mm/slab.c:3557 getname_flags+0xce/0x590 fs/namei.c:140 do_sys_open+0x26c/0x520 fs/open.c:1079 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7ff8d25b1840 Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24 RSP: 002b:00007ffe543e9808 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007ffe543e9b10 RCX: 00007ff8d25b1840 RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 000055b6ab68caa0 RBP: 000000000000000d R08: 00000000000001e0 R09: 00000000ffffffff R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff R13: 000055b6ab687040 R14: 00007ffe543e9ad0 R15: 000055b6ab68c2d0 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 4e 8d 04 dd 28 00 00 lea 0x28(,%r11,8),%r8 9: 00 a: 4c 39 c6 cmp %r8,%rsi d: 72 1b jb 0x2a f: 48 83 c7 01 add $0x1,%rdi 13: 4e 89 54 00 e0 mov %r10,-0x20(%rax,%r8,1) 18: 4e 89 4c 00 e8 mov %r9,-0x18(%rax,%r8,1) 1d: 4a 89 54 00 f0 mov %rdx,-0x10(%rax,%r8,1) 22: 4a 89 4c d8 20 mov %rcx,0x20(%rax,%r11,8) 27: 48 89 38 mov %rdi,(%rax) 2a: c3 retq <-- trapping instruction 2b: 0f 1f 00 nopl (%rax) 2e: 48 8b 0c 24 mov (%rsp),%rcx 32: 40 0f b6 d6 movzbl %sil,%edx 36: 40 0f b6 f7 movzbl %dil,%esi 3a: 31 ff xor %edi,%edi 3c: eb 80 jmp 0xffffffbe 3e: 48 rex.W 3f: 8b .byte 0x8b