Warning: Permanently added '10.128.10.25' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 717.609575] INFO: task syz-executor219:10270 blocked for more than 140 seconds. [ 717.617248] Not tainted 4.19.211-syzkaller #0 [ 717.624365] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.633096] syz-executor219 D28536 10270 8092 0x00000004 [ 717.638733] Call Trace: [ 717.642408] __schedule+0x887/0x2040 [ 717.646128] ? io_schedule_timeout+0x140/0x140 [ 717.651799] ? mark_held_locks+0xa6/0xf0 [ 717.655865] ? rwsem_down_read_failed+0x20a/0x390 [ 717.661772] schedule+0x8d/0x1b0 [ 717.665180] rwsem_down_read_failed+0x20a/0x390 [ 717.670964] ? rt_mutex_futex_unlock+0xf0/0xf0 [ 717.675565] call_rwsem_down_read_failed+0x14/0x30 [ 717.681537] down_read+0x44/0x80 [ 717.684904] ? __do_page_fault+0x97f/0xd60 [ 717.689134] __do_page_fault+0x97f/0xd60 [ 717.694623] ? page_fault+0x8/0x30 [ 717.698165] ? trace_hardirqs_off_caller+0x6e/0x210 [ 717.704192] ? spurious_fault+0x840/0x840 [ 717.708341] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 717.714283] ? page_fault+0x8/0x30 [ 717.717839] page_fault+0x1e/0x30 [ 717.722605] RIP: 0033:0x7f4a9eed9ce0 [ 717.726327] Code: Bad RIP value. [ 717.730817] RSP: 002b:00007ffe24e94648 EFLAGS: 00010246 [ 717.736184] RAX: 0000000000000000 RBX: 0000000000000064 RCX: 0000000000000000 [ 717.744516] RDX: 00007ffe24e94660 RSI: 0000000000000000 RDI: 0000000000000000 [ 717.752586] RBP: 0000000000000032 R08: 00007ffe24eaf000 R09: 000000882b22e223 [ 717.760522] R10: 0008cb1b09a60c4a R11: 0000000000000001 R12: 00007ffe24e946c0 [ 717.767791] R13: 00007f4a9ef2041c R14: 00007ffe24e946e0 R15: 00007f4a9ee554a0 [ 717.776222] INFO: task syz-executor219:10271 blocked for more than 140 seconds. [ 717.784323] Not tainted 4.19.211-syzkaller #0 [ 717.789333] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.798410] syz-executor219 D28256 10271 8092 0x80000004 [ 717.805091] Call Trace: [ 717.807695] __schedule+0x887/0x2040 [ 717.813603] ? io_schedule_timeout+0x140/0x140 [ 717.818196] ? mark_held_locks+0xa6/0xf0 [ 717.823223] ? rwsem_down_read_failed+0x20a/0x390 [ 717.828065] schedule+0x8d/0x1b0 [ 717.832505] rwsem_down_read_failed+0x20a/0x390 [ 717.837180] ? rt_mutex_futex_unlock+0xf0/0xf0 [ 717.843019] ? lock_acquire+0x170/0x3c0 [ 717.847021] ? lock_downgrade+0x720/0x720 [ 717.852268] call_rwsem_down_read_failed+0x14/0x30 [ 717.857208] down_read+0x44/0x80 [ 717.861583] ? do_exit+0x6e4/0x2be0 [ 717.865220] do_exit+0x6e4/0x2be0 [ 717.868673] ? futex_wake+0x159/0x480 [ 717.874026] ? validate_mm+0x32b/0x610 [ 717.877932] ? mm_update_next_owner+0x650/0x650 [ 717.883630] ? get_signal+0x388/0x1f70 [ 717.887523] ? lock_downgrade+0x720/0x720 [ 717.892702] ? lock_acquire+0x170/0x3c0 [ 717.896685] do_group_exit+0x125/0x310 [ 717.901570] get_signal+0x3f2/0x1f70 [ 717.905298] do_signal+0x8f/0x1670 [ 717.908842] ? setup_sigcontext+0x820/0x820 [ 717.914599] ? vm_mmap_pgoff+0x1c0/0x200 [ 717.918662] ? vm_mmap_pgoff+0xe8/0x200 [ 717.923654] ? vma_is_stack_for_current+0xc0/0xc0 [ 717.928497] ? do_dup2+0x450/0x450 [ 717.933381] ? __se_sys_futex+0x28f/0x3b0 [ 717.937532] ? __se_sys_futex+0x298/0x3b0 [ 717.942685] ? do_futex+0x1880/0x1880 [ 717.946487] ? exit_to_usermode_loop+0x36/0x2a0 [ 717.952183] exit_to_usermode_loop+0x204/0x2a0 [ 717.956769] do_syscall_64+0x538/0x620 [ 717.961648] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.966834] RIP: 0033:0x7f4a9ee98b39 [ 717.972095] Code: Bad RIP value. [ 717.975465] RSP: 002b:00007f4a9ee4a318 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 717.984296] RAX: fffffffffffffe00 RBX: 00007f4a9ef20408 RCX: 00007f4a9ee98b39 [ 717.992274] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4a9ef20408 [ 718.000561] RBP: 00007f4a9ef20400 R08: 0000000000000000 R09: 0000000000000000 [ 718.007829] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4a9eeee074 [ 718.017508] R13: 00007ffe24e9460f R14: 00007f4a9ee4a400 R15: 0000000000022000 [ 718.025490] [ 718.025490] Showing all locks held in the system: [ 718.032595] 1 lock held by khungtaskd/1570: [ 718.036923] #0: 000000000dcc2683 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 718.046662] 1 lock held by in:imklog/7827: [ 718.052154] #0: 00000000a1b9c8c6 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 [ 718.060814] 1 lock held by syz-executor219/10270: [ 718.065649] #0: 0000000039b7b832 (&mm->mmap_sem){++++}, at: __do_page_fault+0x97f/0xd60 [ 718.074908] 1 lock held by syz-executor219/10271: [ 718.080401] #0: 0000000039b7b832 (&mm->mmap_sem){++++}, at: do_exit+0x6e4/0x2be0 [ 718.088037] 2 locks held by syz-executor219/10272: [ 718.094021] [ 718.095644] ============================================= [ 718.095644] [ 718.103710] NMI backtrace for cpu 1 [ 718.107339] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.114775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 718.124118] Call Trace: [ 718.126709] dump_stack+0x1fc/0x2ef [ 718.130336] nmi_cpu_backtrace.cold+0x63/0xa2 [ 718.134824] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.139316] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 718.144590] watchdog+0x991/0xe60 [ 718.148043] ? reset_hung_task_detector+0x30/0x30 [ 718.152893] kthread+0x33f/0x460 [ 718.156253] ? kthread_park+0x180/0x180 [ 718.160227] ret_from_fork+0x24/0x30 [ 718.164031] Sending NMI from CPU 1 to CPUs 0: [ 718.168935] NMI backtrace for cpu 0 [ 718.168941] CPU: 0 PID: 10272 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 718.168947] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 718.168951] RIP: 0010:__mutex_unlock_slowpath+0xf/0x610 [ 718.168962] Code: 66 66 2e 0f 1f 84 00 00 00 00 00 48 be ff ff ff ff ff ff ff 7f e9 31 fc ff ff 90 41 57 48 89 f2 49 89 ff be 01 00 00 00 41 56 <48> 83 c7 60 41 55 41 54 55 53 48 bb 00 00 00 00 00 fc ff df 48 83 [ 718.168967] RSP: 0018:ffff8880936a7b08 EFLAGS: 00000293 [ 718.168974] RAX: ffff88809301a600 RBX: 0000000000000000 RCX: ffffffff8178e215 [ 718.168979] RDX: ffffffff8178e144 RSI: 0000000000000001 RDI: ffff8880aa71d3f0 [ 718.168984] RBP: ffff8880a2c4a328 R08: 0000000000000000 R09: 0000000000000000 [ 718.168989] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000020395000 [ 718.168994] R13: ffff8880aa71d3f0 R14: 0000000000000001 R15: ffff8880aa71d3f0 [ 718.168999] FS: 00007f4a9ee29700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 718.169004] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 718.169009] CR2: 00005555559b22b8 CR3: 00000000934b2000 CR4: 00000000003406f0 [ 718.169014] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 718.169019] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 718.169021] Call Trace: [ 718.169025] perf_mmap+0x684/0x1810 [ 718.169028] ? perf_release+0x40/0x40 [ 718.169032] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 718.169035] mmap_region+0xc94/0x16b0 [ 718.169038] ? vm_munmap+0x140/0x140 [ 718.169042] ? get_unmapped_area+0x294/0x3c0 [ 718.169045] do_mmap+0x8e8/0x1080 [ 718.169048] vm_mmap_pgoff+0x197/0x200 [ 718.169052] ? vma_is_stack_for_current+0xc0/0xc0 [ 718.169056] ? do_dup2+0x450/0x450 [ 718.169059] ksys_mmap_pgoff+0x298/0x5a0 [ 718.169063] ? find_mergeable_anon_vma+0x260/0x260 [ 718.169067] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 718.169071] ? trace_hardirqs_off_caller+0x6e/0x210 [ 718.169074] ? do_syscall_64+0x21/0x620 [ 718.169077] do_syscall_64+0xf9/0x620 [ 718.169081] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.169085] RIP: 0033:0x7f4a9ee98b39 [ 718.169096] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 718.169099] RSP: 002b:00007f4a9ee29308 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 718.169108] RAX: ffffffffffffffda RBX: 00007f4a9ef20418 RCX: 00007f4a9ee98b39 [ 718.169113] RDX: 0000000000000000 RSI: 0000000000002000 RDI: 0000000020395000 [ 718.169118] RBP: 00007f4a9ef20410 R08: 0000000000000003 R09: 0000000000000000 [ 718.169123] R10: 0000000000000011 R11: 0000000000000246 R12: 00007f4a9eeee074 [ 718.169128] R13: 00007ffe24e9460f R14: 00007f4a9ee29400 R15: 0000000000022000 [ 718.190148] Kernel panic - not syncing: hung_task: blocked tasks [ 718.438988] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.446424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 718.455761] Call Trace: [ 718.458345] dump_stack+0x1fc/0x2ef [ 718.461967] panic+0x26a/0x50e [ 718.465154] ? __warn_printk+0xf3/0xf3 [ 718.469040] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.473524] ? ___preempt_schedule+0x16/0x18 [ 718.477934] ? watchdog+0x991/0xe60 [ 718.481554] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 718.487002] watchdog+0x9a2/0xe60 [ 718.490456] ? reset_hung_task_detector+0x30/0x30 [ 718.495295] kthread+0x33f/0x460 [ 718.498656] ? kthread_park+0x180/0x180 [ 718.502628] ret_from_fork+0x24/0x30 [ 718.506652] Kernel Offset: disabled [ 718.510272] Rebooting in 86400 seconds..