[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ 53.313363][ T6748] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6748 [ 53.323145][ T6748] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 53.329021][ T6748] CPU: 0 PID: 6748 Comm: systemd-rfkill Not tainted 5.7.0-next-20200612-syzkaller #0 [ 53.338672][ T6748] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.348768][ T6748] Call Trace: [ 53.352061][ T6748] dump_stack+0x18f/0x20d [ 53.356397][ T6748] check_preemption_disabled+0x20d/0x220 [ 53.362011][ T6748] ext4_mb_new_blocks+0xa4d/0x3b70 [ 53.367123][ T6748] ? ext4_ext_search_right+0x2ca/0xb20 [ 53.372559][ T6748] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 53.378272][ T6748] ext4_ext_map_blocks+0x201b/0x33e0 [ 53.383539][ T6748] ? ext4_ext_release+0x10/0x10 [ 53.388417][ T6748] ? down_write_killable+0x170/0x170 [ 53.393678][ T6748] ? ext4_es_lookup_extent+0x41d/0xd10 [ 53.399141][ T6748] ext4_map_blocks+0x4cb/0x1640 [ 53.403977][ T6748] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 53.409149][ T6748] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 53.414672][ T6748] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 53.420653][ T6748] ? prandom_u32_state+0xe/0x170 [ 53.425586][ T6748] ? __brelse+0x84/0xa0 [ 53.429729][ T6748] ? __ext4_new_inode+0x144/0x55e0 [ 53.434820][ T6748] ext4_getblk+0xad/0x520 [ 53.439142][ T6748] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 53.444854][ T6748] ? ext4_free_inode+0x1700/0x1700 [ 53.449950][ T6748] ext4_bread+0x7c/0x380 [ 53.454167][ T6748] ? ext4_getblk+0x520/0x520 [ 53.458738][ T6748] ? dquot_get_next_dqblk+0x180/0x180 [ 53.464091][ T6748] ext4_append+0x153/0x360 [ 53.468495][ T6748] ext4_mkdir+0x5e0/0xdf0 [ 53.472817][ T6748] ? ext4_rmdir+0xde0/0xde0 [ 53.477322][ T6748] ? security_inode_permission+0xc4/0xf0 [ 53.482954][ T6748] vfs_mkdir+0x419/0x690 [ 53.487175][ T6748] do_mkdirat+0x21e/0x280 [ 53.491497][ T6748] ? __ia32_sys_mknod+0xb0/0xb0 [ 53.496370][ T6748] ? do_syscall_64+0x1c/0xe0 [ 53.500947][ T6748] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.506922][ T6748] do_syscall_64+0x60/0xe0 [ 53.511323][ T6748] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.517197][ T6748] RIP: 0033:0x7f894110c687 [ 53.521598][ T6748] Code: Bad RIP value. [ 53.525684][ T6748] RSP: 002b:00007ffc9501b6f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 53.534324][ T6748] RAX: ffffffffffffffda RBX: 00005577da7a8985 RCX: 00007f894110c687 [ 53.542300][ T6748] RDX: 00007ffc9501b5c0 RSI: 00000000000001ed RDI: 00005577da7a8985 [ 53.550252][ T6748] RBP: 00007f894110c680 R08: 0000000000000100 R09: 0000000000000000 [ 53.558218][ T6748] R10: 00005577da7a8980 R11: 0000000000000246 R12: 00000000000001ed [ 53.566169][ T6748] R13: 00007ffc9501b880 R14: 0000000000000000 R15: 0000000000000000 Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 56.542143][ T26] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:2/26 [ 56.551237][ T26] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 56.557366][ T26] CPU: 0 PID: 26 Comm: kworker/u4:2 Not tainted 5.7.0-next-20200612-syzkaller #0 [ 56.566485][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.576626][ T26] Workqueue: writeback wb_workfn (flush-8:0) [ 56.582583][ T26] Call Trace: [ 56.585864][ T26] dump_stack+0x18f/0x20d [ 56.590191][ T26] check_preemption_disabled+0x20d/0x220 [ 56.595834][ T26] ext4_mb_new_blocks+0xa4d/0x3b70 [ 56.600920][ T26] ? ext4_find_extent+0x81a/0xad0 [ 56.605943][ T26] ? ext4_ext_search_right+0x2ca/0xb20 [ 56.611381][ T26] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 56.617082][ T26] ext4_ext_map_blocks+0x201b/0x33e0 [ 56.622627][ T26] ? ext4_ext_release+0x10/0x10 [ 56.627465][ T26] ? down_write_killable+0x170/0x170 [ 56.632725][ T26] ? ext4_es_lookup_extent+0x41d/0xd10 [ 56.638165][ T26] ext4_map_blocks+0x4cb/0x1640 [ 56.642996][ T26] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 56.648186][ T26] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.653722][ T26] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.659679][ T26] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 56.665114][ T26] ext4_writepages+0x1a83/0x33c0 [ 56.670072][ T26] ? __ext4_mark_inode_dirty+0x940/0x940 [ 56.675799][ T26] ? __lock_acquire+0x2224/0x48b0 [ 56.681000][ T26] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.686979][ T26] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.692939][ T26] ? __ext4_mark_inode_dirty+0x940/0x940 [ 56.698549][ T26] ? do_writepages+0xf3/0x2a0 [ 56.703484][ T26] do_writepages+0xf3/0x2a0 [ 56.707979][ T26] ? page_writeback_cpu_online+0x10/0x10 [ 56.713593][ T26] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.719115][ T26] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.725087][ T26] ? lock_downgrade+0x840/0x840 [ 56.729924][ T26] __writeback_single_inode+0x12a/0x13d0 [ 56.735564][ T26] ? _raw_spin_unlock+0x24/0x40 [ 56.740411][ T26] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 56.746389][ T26] writeback_sb_inodes+0x515/0xdc0 [ 56.751671][ T26] ? __writeback_single_inode+0x13d0/0x13d0 [ 56.757567][ T26] __writeback_inodes_wb+0xc3/0x250 [ 56.762873][ T26] wb_writeback+0x8c8/0xd40 [ 56.767369][ T26] ? writeback_inodes_wb.constprop.0+0x190/0x190 [ 56.773683][ T26] ? cpumask_next+0x3c/0x40 [ 56.778200][ T26] ? get_nr_dirty_inodes+0xd6/0x130 [ 56.783385][ T26] wb_workfn+0xab3/0x1090 [ 56.787699][ T26] ? inode_wait_for_writeback+0x30/0x30 [ 56.793239][ T26] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.798760][ T26] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.804720][ T26] process_one_work+0x965/0x1690 [ 56.809642][ T26] ? lock_release+0x800/0x800 [ 56.814298][ T26] ? pwq_dec_nr_in_flight+0x310/0x310 [ 56.819659][ T26] ? rwlock_bug.part.0+0x90/0x90 [ 56.824579][ T26] worker_thread+0x96/0xe10 [ 56.829089][ T26] ? process_one_work+0x1690/0x1690 [ 56.834274][ T26] kthread+0x3b5/0x4a0 [ 56.838317][ T26] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.844020][ T26] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.849718][ T26] ret_from_fork+0x1f/0x30 Warning: Permanently added '10.128.0.108' (ECDSA) to the list of known hosts. 2020/06/13 01:49:04 fuzzer started 2020/06/13 01:49:04 connecting to host at 10.128.0.26:41401 2020/06/13 01:49:04 checking machine... 2020/06/13 01:49:04 checking revisions... 2020/06/13 01:49:04 testing simple program... [ 58.526928][ T6825] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6825 [ 58.536479][ T6825] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.542502][ T6825] CPU: 1 PID: 6825 Comm: syz-fuzzer Not tainted 5.7.0-next-20200612-syzkaller #0 [ 58.551598][ T6825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.561648][ T6825] Call Trace: [ 58.564950][ T6825] dump_stack+0x18f/0x20d [ 58.569263][ T6825] check_preemption_disabled+0x20d/0x220 [ 58.574876][ T6825] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.579985][ T6825] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.585436][ T6825] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.591320][ T6825] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.596586][ T6825] ? ext4_ext_release+0x10/0x10 [ 58.601425][ T6825] ? down_write_killable+0x170/0x170 [ 58.606692][ T6825] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.612137][ T6825] ext4_map_blocks+0x4cb/0x1640 [ 58.616981][ T6825] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.622259][ T6825] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.627781][ T6825] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.633756][ T6825] ? prandom_u32_state+0xe/0x170 [ 58.638671][ T6825] ? __brelse+0x84/0xa0 [ 58.642804][ T6825] ? __ext4_new_inode+0x144/0x55e0 [ 58.647906][ T6825] ext4_getblk+0xad/0x520 [ 58.652219][ T6825] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.658204][ T6825] ? ext4_free_inode+0x1700/0x1700 [ 58.663335][ T6825] ext4_bread+0x7c/0x380 [ 58.667563][ T6825] ? ext4_getblk+0x520/0x520 [ 58.672147][ T6825] ? dquot_get_next_dqblk+0x180/0x180 [ 58.677502][ T6825] ext4_append+0x153/0x360 [ 58.681918][ T6825] ext4_mkdir+0x5e0/0xdf0 [ 58.686253][ T6825] ? ext4_rmdir+0xde0/0xde0 [ 58.690749][ T6825] ? security_inode_permission+0xc4/0xf0 [ 58.696385][ T6825] vfs_mkdir+0x419/0x690 [ 58.700618][ T6825] do_mkdirat+0x21e/0x280 [ 58.704930][ T6825] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.709770][ T6825] ? do_syscall_64+0x1c/0xe0 [ 58.714340][ T6825] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.720302][ T6825] do_syscall_64+0x60/0xe0 [ 58.724701][ T6825] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.730581][ T6825] RIP: 0033:0x4b02a0 [ 58.734446][ T6825] Code: Bad RIP value. [ 58.738512][ T6825] RSP: 002b:000000c0000d14b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 58.746899][ T6825] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 58.755630][ T6825] RDX: 00000000000001c0 RSI: 000000c000026e80 RDI: ffffffffffffff9c [ 58.763849][ T6825] RBP: 000000c0000d1510 R08: 0000000000000000 R09: 0000000000000000 [ 58.771803][ T6825] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 58.779768][ T6825] R13: 0000000000000075 R14: 0000000000000074 R15: 0000000000000100 [ 58.813946][ T6836] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6836 [ 58.823508][ T6836] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.829400][ T6836] CPU: 0 PID: 6836 Comm: syz-executor.0 Not tainted 5.7.0-next-20200612-syzkaller #0 [ 58.838852][ T6836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.849011][ T6836] Call Trace: [ 58.852297][ T6836] dump_stack+0x18f/0x20d [ 58.856619][ T6836] check_preemption_disabled+0x20d/0x220 [ 58.862254][ T6836] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.867350][ T6836] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.872792][ T6836] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.878504][ T6836] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.883779][ T6836] ? ext4_ext_release+0x10/0x10 [ 58.888636][ T6836] ? down_write_killable+0x170/0x170 [ 58.893918][ T6836] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.899377][ T6836] ext4_map_blocks+0x4cb/0x1640 [ 58.904211][ T6836] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.909384][ T6836] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.914907][ T6836] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.920874][ T6836] ? prandom_u32_state+0xe/0x170 [ 58.925794][ T6836] ? __brelse+0x84/0xa0 [ 58.929929][ T6836] ? __ext4_new_inode+0x144/0x55e0 [ 58.935020][ T6836] ext4_getblk+0xad/0x520 [ 58.939343][ T6836] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.945058][ T6836] ? ext4_free_inode+0x1700/0x1700 [ 58.950156][ T6836] ext4_bread+0x7c/0x380 [ 58.954377][ T6836] ? ext4_getblk+0x520/0x520 [ 58.958943][ T6836] ? dquot_get_next_dqblk+0x180/0x180 [ 58.964310][ T6836] ext4_append+0x153/0x360 [ 58.968718][ T6836] ext4_mkdir+0x5e0/0xdf0 [ 58.973061][ T6836] ? ext4_rmdir+0xde0/0xde0 [ 58.977572][ T6836] ? security_inode_permission+0xc4/0xf0 [ 58.983225][ T6836] vfs_mkdir+0x419/0x690 [ 58.987567][ T6836] do_mkdirat+0x21e/0x280 [ 58.991978][ T6836] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.996827][ T6836] ? do_syscall_64+0x1c/0xe0 [ 59.001415][ T6836] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.007401][ T6836] do_syscall_64+0x60/0xe0 [ 59.011813][ T6836] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.017688][ T6836] RIP: 0033:0x45bee7 [ 59.021563][ T6836] Code: Bad RIP value. [ 59.025610][ T6836] RSP: 002b:00007ffe0ee6afd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 59.034123][ T6836] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 59.042086][ T6836] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffe0ee6b1b0 [ 59.050055][ T6836] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002b00 [ 59.058007][ T6836] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 59.065971][ T6836] R13: 00007ffe0ee6b1b0 R14: 8421084210842109 R15: 00007ffe0ee6b1bc [ 59.189048][ T6839] IPVS: ftp: loaded support on port[0] = 21 [ 59.226003][ T6839] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6839 [ 59.235598][ T6839] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.241625][ T6839] CPU: 0 PID: 6839 Comm: syz-executor.0 Not tainted 5.7.0-next-20200612-syzkaller #0 [ 59.251094][ T6839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.261170][ T6839] Call Trace: [ 59.264446][ T6839] dump_stack+0x18f/0x20d [ 59.268758][ T6839] check_preemption_disabled+0x20d/0x220 [ 59.274384][ T6839] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.279479][ T6839] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.284927][ T6839] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.290624][ T6839] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.295891][ T6839] ? ext4_ext_release+0x10/0x10 [ 59.300835][ T6839] ? down_write_killable+0x170/0x170 [ 59.306098][ T6839] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.311550][ T6839] ext4_map_blocks+0x4cb/0x1640 [ 59.316381][ T6839] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.321571][ T6839] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.327351][ T6839] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.333309][ T6839] ? prandom_u32_state+0xe/0x170 [ 59.338224][ T6839] ? __brelse+0x84/0xa0 [ 59.342372][ T6839] ? __ext4_new_inode+0x144/0x55e0 [ 59.347460][ T6839] ext4_getblk+0xad/0x520 [ 59.351783][ T6839] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.357497][ T6839] ? ext4_free_inode+0x1700/0x1700 [ 59.362594][ T6839] ext4_bread+0x7c/0x380 [ 59.366815][ T6839] ? ext4_getblk+0x520/0x520 [ 59.371380][ T6839] ? dquot_get_next_dqblk+0x180/0x180 [ 59.376735][ T6839] ext4_append+0x153/0x360 [ 59.381154][ T6839] ext4_mkdir+0x5e0/0xdf0 [ 59.385465][ T6839] ? ext4_rmdir+0xde0/0xde0 [ 59.389958][ T6839] ? security_inode_permission+0xc4/0xf0 [ 59.395573][ T6839] vfs_mkdir+0x419/0x690 [ 59.399801][ T6839] do_mkdirat+0x21e/0x280 [ 59.404116][ T6839] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.409119][ T6839] ? do_syscall_64+0x1c/0xe0 [ 59.413972][ T6839] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.419951][ T6839] do_syscall_64+0x60/0xe0 [ 59.424354][ T6839] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.430234][ T6839] RIP: 0033:0x45bee7 [ 59.434113][ T6839] Code: Bad RIP value. [ 59.438160][ T6839] RSP: 002b:00007ffe0ee6aec8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 59.446573][ T6839] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 59.454527][ T6839] RDX: 00007ffe0ee6af13 RSI: 00000000000001ff RDI: 00007ffe0ee6af10 [ 59.462506][ T6839] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 59.470470][ T6839] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 59.478530][ T6839] R13: 00007ffe0ee6af00 R14: 0000000000000000 R15: 00007ffe0ee6af10 [ 59.532317][ T6839] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6839 [ 59.542209][ T6839] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.548197][ T6839] CPU: 0 PID: 6839 Comm: syz-executor.0 Not tainted 5.7.0-next-20200612-syzkaller #0 [ 59.557730][ T6839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.567779][ T6839] Call Trace: [ 59.571082][ T6839] dump_stack+0x18f/0x20d [ 59.575495][ T6839] check_preemption_disabled+0x20d/0x220 [ 59.581135][ T6839] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.586272][ T6839] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.591738][ T6839] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.597560][ T6839] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.602862][ T6839] ? ext4_ext_release+0x10/0x10 [ 59.607872][ T6839] ? down_write_killable+0x170/0x170 [ 59.613200][ T6839] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.618657][ T6839] ext4_map_blocks+0x4cb/0x1640 [ 59.623541][ T6839] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.628716][ T6839] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.634289][ T6839] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.640246][ T6839] ? prandom_u32_state+0xe/0x170 [ 59.645166][ T6839] ? __brelse+0x84/0xa0 [ 59.649301][ T6839] ? __ext4_new_inode+0x144/0x55e0 [ 59.654394][ T6839] ext4_getblk+0xad/0x520 [ 59.658712][ T6839] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.664435][ T6839] ? ext4_free_inode+0x1700/0x1700 [ 59.669776][ T6839] ext4_bread+0x7c/0x380 [ 59.674053][ T6839] ? ext4_getblk+0x520/0x520 [ 59.678639][ T6839] ? dquot_get_next_dqblk+0x180/0x180 [ 59.683999][ T6839] ext4_append+0x153/0x360 [ 59.688426][ T6839] ext4_mkdir+0x5e0/0xdf0 [ 59.692757][ T6839] ? ext4_rmdir+0xde0/0xde0 [ 59.697245][ T6839] ? security_inode_permission+0xc4/0xf0 [ 59.702876][ T6839] vfs_mkdir+0x419/0x690 [ 59.707103][ T6839] do_mkdirat+0x21e/0x280 [ 59.711416][ T6839] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.716258][ T6839] ? do_syscall_64+0x1c/0xe0 [ 59.720842][ T6839] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.726906][ T6839] do_syscall_64+0x60/0xe0 2020/06/13 01:49:06 building call list... [ 59.732437][ T6839] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.738338][ T6839] RIP: 0033:0x45bee7 [ 59.742212][ T6839] Code: Bad RIP value. [ 59.746417][ T6839] RSP: 002b:00007ffe0ee6aec8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 59.754821][ T6839] RAX: ffffffffffffffda RBX: 000000000000e886 RCX: 000000000045bee7 [ 59.762873][ T6839] RDX: 00007ffe0ee6af13 RSI: 00000000000001ff RDI: 00007ffe0ee6af10 [ 59.770842][ T6839] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 59.778806][ T6839] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 59.786755][ T6839] R13: 00007ffe0ee6af00 R14: 000000000000e871 R15: 00007ffe0ee6af10 [ 60.040828][ T21] tipc: TX() has been purged, node left! [ 60.328392][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 60.337595][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.343567][ T1156] CPU: 0 PID: 1156 Comm: khugepaged Not tainted 5.7.0-next-20200612-syzkaller #0 [ 60.352665][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.362711][ T1156] Call Trace: [ 60.366000][ T1156] dump_stack+0x18f/0x20d [ 60.370331][ T1156] check_preemption_disabled+0x20d/0x220 [ 60.375967][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.381088][ T1156] ? ext4_find_extent+0x81a/0xad0 [ 60.386112][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.391565][ T1156] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.397282][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.402579][ T1156] ? ext4_ext_release+0x10/0x10 [ 60.407444][ T1156] ? down_write_killable+0x170/0x170 [ 60.412741][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.418219][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 60.423085][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.428307][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.433850][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.439828][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.445283][ T1156] ext4_writepages+0x1a83/0x33c0 [ 60.450259][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.455889][ T1156] ? __lock_acquire+0x2224/0x48b0 [ 60.460940][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.466572][ T1156] ? do_writepages+0xf3/0x2a0 [ 60.471261][ T1156] do_writepages+0xf3/0x2a0 [ 60.475768][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 60.481396][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 60.486424][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 60.491625][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 60.496477][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.502212][ T1156] ? collapse_file+0x35a2/0x4330 [ 60.507158][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 60.513231][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.518599][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.524582][ T1156] collapse_file+0x35ac/0x4330 [ 60.529366][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 60.534752][ T1156] ? khugepaged+0x2506/0x3fc0 [ 60.539448][ T1156] ? xas_find+0x31a/0x880 [ 60.543776][ T1156] ? check_preemption_disabled+0x38/0x220 [ 60.549520][ T1156] khugepaged+0x3041/0x3fc0 [ 60.554323][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.559972][ T1156] ? lock_downgrade+0x840/0x840 [ 60.564827][ T1156] ? finish_wait+0x260/0x260 [ 60.569414][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.575215][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.581193][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 60.586224][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.591860][ T1156] kthread+0x3b5/0x4a0 [ 60.596107][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.601822][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.607543][ T1156] ret_from_fork+0x1f/0x30 [ 60.732796][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 60.742091][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.747984][ T1156] CPU: 0 PID: 1156 Comm: khugepaged Not tainted 5.7.0-next-20200612-syzkaller #0 [ 60.757077][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.767121][ T1156] Call Trace: [ 60.770409][ T1156] dump_stack+0x18f/0x20d [ 60.774739][ T1156] check_preemption_disabled+0x20d/0x220 [ 60.780368][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.785481][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.790944][ T1156] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 60.797108][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.802495][ T1156] ? ext4_ext_release+0x10/0x10 [ 60.807632][ T1156] ? down_write_killable+0x170/0x170 [ 60.812918][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.818415][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 60.823266][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.829240][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.834431][ T1156] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 60.840589][ T1156] ext4_writepages+0x1a83/0x33c0 [ 60.845544][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.851173][ T1156] ? __lock_acquire+0x2224/0x48b0 [ 60.856226][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.861867][ T1156] ? do_writepages+0xf3/0x2a0 [ 60.866552][ T1156] do_writepages+0xf3/0x2a0 [ 60.871067][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 60.876683][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 60.881705][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 60.886898][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 60.891751][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.897465][ T1156] ? collapse_file+0x35a2/0x4330 [ 60.902400][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 60.908474][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.913674][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.919655][ T1156] collapse_file+0x35ac/0x4330 [ 60.924536][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 60.929901][ T1156] ? khugepaged+0x2506/0x3fc0 [ 60.935016][ T1156] ? xas_find+0x31a/0x880 [ 60.939339][ T1156] ? check_preemption_disabled+0x38/0x220 [ 60.945057][ T1156] khugepaged+0x3041/0x3fc0 [ 60.949583][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.955212][ T1156] ? lock_downgrade+0x840/0x840 [ 60.960058][ T1156] ? finish_wait+0x260/0x260 [ 60.964643][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.970450][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.976428][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 60.981446][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.987072][ T1156] kthread+0x3b5/0x4a0 [ 60.991138][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.996847][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.002562][ T1156] ret_from_fork+0x1f/0x30 [ 61.090850][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 61.099919][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.105902][ T1156] CPU: 0 PID: 1156 Comm: khugepaged Not tainted 5.7.0-next-20200612-syzkaller #0 [ 61.115002][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.125315][ T1156] Call Trace: [ 61.128606][ T1156] dump_stack+0x18f/0x20d [ 61.132938][ T1156] check_preemption_disabled+0x20d/0x220 [ 61.138564][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.143706][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.149159][ T1156] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.155309][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.160600][ T1156] ? ext4_ext_release+0x10/0x10 [ 61.165461][ T1156] ? down_write_killable+0x170/0x170 [ 61.170738][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.176202][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 61.181159][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.186371][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.191911][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.197886][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.203340][ T1156] ext4_writepages+0x1a83/0x33c0 [ 61.208295][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.213936][ T1156] ? __lock_acquire+0x2224/0x48b0 [ 61.218983][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.224609][ T1156] ? do_writepages+0xf3/0x2a0 [ 61.229286][ T1156] do_writepages+0xf3/0x2a0 [ 61.233812][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 61.239440][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 61.244465][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 61.249700][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 61.254558][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.260281][ T1156] ? collapse_file+0x35a2/0x4330 [ 61.265218][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 61.271294][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.276493][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.282485][ T1156] collapse_file+0x35ac/0x4330 [ 61.287272][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 61.292665][ T1156] ? khugepaged+0x2506/0x3fc0 [ 61.297358][ T1156] ? xas_find+0x31a/0x880 [ 61.301728][ T1156] ? check_preemption_disabled+0x38/0x220 [ 61.307461][ T1156] khugepaged+0x3041/0x3fc0 [ 61.312027][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.317666][ T1156] ? lock_downgrade+0x840/0x840 [ 61.322540][ T1156] ? finish_wait+0x260/0x260 [ 61.327135][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.333029][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 executing program [ 61.339000][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 61.344009][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.349621][ T1156] kthread+0x3b5/0x4a0 [ 61.353670][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.359363][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.365073][ T1156] ret_from_fork+0x1f/0x30 [ 61.462201][ T21] ================================================================== [ 61.470427][ T21] BUG: KASAN: use-after-free in afs_wake_up_async_call+0x6aa/0x770 [ 61.478575][ T21] Write of size 1 at addr ffff8880a4be61e4 by task kworker/u4:1/21 [ 61.478586][ T21] [ 61.478600][ T21] CPU: 1 PID: 21 Comm: kworker/u4:1 Not tainted 5.7.0-next-20200612-syzkaller #0 [ 61.478612][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.508184][ T21] Workqueue: netns cleanup_net [ 61.508193][ T21] Call Trace: [ 61.508216][ T21] dump_stack+0x18f/0x20d [ 61.520564][ T21] ? afs_wake_up_async_call+0x6aa/0x770 [ 61.520582][ T21] ? afs_wake_up_async_call+0x6aa/0x770 [ 61.531656][ T21] ? afs_put_call+0xa40/0xa40 [ 61.536319][ T21] print_address_description.constprop.0.cold+0xd3/0x413 [ 61.543340][ T21] ? vprintk_func+0x97/0x1a6 [ 61.547910][ T21] ? afs_wake_up_async_call+0x6aa/0x770 [ 61.553439][ T21] kasan_report.cold+0x1f/0x37 [ 61.558203][ T21] ? rcu_read_lock_held_common+0x41/0xa0 [ 61.563812][ T21] ? afs_wake_up_async_call+0x6aa/0x770 [ 61.569347][ T21] afs_wake_up_async_call+0x6aa/0x770 [ 61.574723][ T21] ? afs_close_socket+0x320/0x320 [ 61.579732][ T21] ? afs_put_call+0xa40/0xa40 [ 61.584396][ T21] rxrpc_notify_socket+0x1db/0x5d0 [ 61.589498][ T21] ? afs_put_call+0xa40/0xa40 [ 61.594158][ T21] __rxrpc_set_call_completion.part.0+0x172/0x410 [ 61.600561][ T21] rxrpc_call_completed+0xca/0xf0 [ 61.605566][ T21] rxrpc_discard_prealloc+0x781/0xab0 [ 61.610916][ T21] ? lock_sock_nested+0x94/0x110 [ 61.615834][ T21] rxrpc_listen+0x147/0x360 [ 61.620328][ T21] afs_close_socket+0x95/0x320 [ 61.625077][ T21] ? afs_purge_servers+0x16d/0x300 [ 61.630168][ T21] ? afs_rx_discard_new_call+0x50/0x50 [ 61.635622][ T21] ? init_wait_var_entry+0x200/0x200 [ 61.640931][ T21] ? rcu_read_lock_held_common+0xa0/0xa0 [ 61.646645][ T21] ? check_preemption_disabled+0x38/0x220 [ 61.652360][ T21] afs_net_exit+0x1bc/0x310 [ 61.656841][ T21] ? afs_net_init+0xe30/0xe30 [ 61.661510][ T21] ops_exit_list.isra.0+0xa8/0x150 [ 61.666603][ T21] cleanup_net+0x511/0xa50 [ 61.671043][ T21] ? unregister_pernet_device+0x70/0x70 [ 61.676602][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.682581][ T21] process_one_work+0x965/0x1690 [ 61.687511][ T21] ? lock_release+0x800/0x800 [ 61.692171][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 61.697670][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 61.702722][ T21] worker_thread+0x96/0xe10 [ 61.707225][ T21] ? process_one_work+0x1690/0x1690 [ 61.712417][ T21] kthread+0x3b5/0x4a0 [ 61.716465][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.722158][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.727890][ T21] ret_from_fork+0x1f/0x30 [ 61.732320][ T21] [ 61.734634][ T21] Allocated by task 6839: [ 61.738974][ T21] save_stack+0x1b/0x40 [ 61.743332][ T21] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 61.748955][ T21] kmem_cache_alloc_trace+0x153/0x7d0 [ 61.754307][ T21] afs_alloc_call+0x55/0x630 [ 61.759006][ T21] afs_charge_preallocation+0xe9/0x2d0 [ 61.764477][ T21] afs_open_socket+0x292/0x360 [ 61.769321][ T21] afs_net_init+0xa6c/0xe30 [ 61.773815][ T21] ops_init+0xaf/0x420 [ 61.777871][ T21] setup_net+0x2de/0x860 [ 61.782112][ T21] copy_net_ns+0x293/0x590 [ 61.786507][ T21] create_new_namespaces+0x3fb/0xb30 [ 61.791781][ T21] unshare_nsproxy_namespaces+0xbd/0x1f0 [ 61.797407][ T21] ksys_unshare+0x43d/0x8e0 [ 61.802060][ T21] __x64_sys_unshare+0x2d/0x40 [ 61.806811][ T21] do_syscall_64+0x60/0xe0 [ 61.811209][ T21] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.817073][ T21] [ 61.819378][ T21] Freed by task 21: [ 61.823255][ T21] save_stack+0x1b/0x40 [ 61.827397][ T21] __kasan_slab_free+0xf7/0x140 [ 61.832223][ T21] kfree+0x109/0x2b0 [ 61.836095][ T21] afs_put_call+0x585/0xa40 [ 61.840586][ T21] rxrpc_discard_prealloc+0x764/0xab0 [ 61.845931][ T21] rxrpc_listen+0x147/0x360 [ 61.850419][ T21] afs_close_socket+0x95/0x320 [ 61.855156][ T21] afs_net_exit+0x1bc/0x310 [ 61.859644][ T21] ops_exit_list.isra.0+0xa8/0x150 [ 61.864727][ T21] cleanup_net+0x511/0xa50 [ 61.869122][ T21] process_one_work+0x965/0x1690 [ 61.874031][ T21] worker_thread+0x96/0xe10 [ 61.878507][ T21] kthread+0x3b5/0x4a0 [ 61.882567][ T21] ret_from_fork+0x1f/0x30 [ 61.886951][ T21] [ 61.889259][ T21] The buggy address belongs to the object at ffff8880a4be6000 [ 61.889259][ T21] which belongs to the cache kmalloc-1k of size 1024 [ 61.903307][ T21] The buggy address is located 484 bytes inside of [ 61.903307][ T21] 1024-byte region [ffff8880a4be6000, ffff8880a4be6400) [ 61.916640][ T21] The buggy address belongs to the page: [ 61.922250][ T21] page:ffffea000292f980 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 [ 61.931341][ T21] flags: 0xfffe0000000200(slab) [ 61.936180][ T21] raw: 00fffe0000000200 ffffea00029c1a08 ffffea00029c4448 ffff8880aa000c40 [ 61.944841][ T21] raw: 0000000000000000 ffff8880a4be6000 0000000100000002 0000000000000000 [ 61.953398][ T21] page dumped because: kasan: bad access detected [ 61.959800][ T21] [ 61.962115][ T21] Memory state around the buggy address: [ 61.967721][ T21] ffff8880a4be6080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 61.975773][ T21] ffff8880a4be6100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 61.983814][ T21] >ffff8880a4be6180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 61.991866][ T21] ^ [ 61.999040][ T21] ffff8880a4be6200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.007078][ T21] ffff8880a4be6280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.015113][ T21] ================================================================== [ 62.023332][ T21] Disabling lock debugging due to kernel taint [ 62.029549][ T21] Kernel panic - not syncing: panic_on_warn set ... [ 62.036143][ T21] CPU: 1 PID: 21 Comm: kworker/u4:1 Tainted: G B 5.7.0-next-20200612-syzkaller #0 [ 62.046632][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.056700][ T21] Workqueue: netns cleanup_net [ 62.061472][ T21] Call Trace: [ 62.064754][ T21] dump_stack+0x18f/0x20d [ 62.069059][ T21] ? afs_wake_up_async_call+0x630/0x770 [ 62.074590][ T21] ? afs_put_call+0xa40/0xa40 [ 62.079242][ T21] panic+0x2e3/0x75c [ 62.083134][ T21] ? __warn_printk+0xf3/0xf3 [ 62.087843][ T21] ? asm_common_interrupt+0x1e/0x40 [ 62.093033][ T21] ? trace_hardirqs_on+0x55/0x220 [ 62.098040][ T21] ? afs_wake_up_async_call+0x6aa/0x770 [ 62.103558][ T21] ? afs_wake_up_async_call+0x6aa/0x770 [ 62.109082][ T21] ? afs_put_call+0xa40/0xa40 [ 62.113732][ T21] end_report+0x4d/0x53 [ 62.117865][ T21] kasan_report.cold+0xd/0x37 [ 62.122657][ T21] ? rcu_read_lock_held_common+0x41/0xa0 [ 62.128489][ T21] ? afs_wake_up_async_call+0x6aa/0x770 [ 62.134030][ T21] afs_wake_up_async_call+0x6aa/0x770 [ 62.139399][ T21] ? afs_close_socket+0x320/0x320 [ 62.144416][ T21] ? afs_put_call+0xa40/0xa40 [ 62.149082][ T21] rxrpc_notify_socket+0x1db/0x5d0 [ 62.154529][ T21] ? afs_put_call+0xa40/0xa40 [ 62.159194][ T21] __rxrpc_set_call_completion.part.0+0x172/0x410 [ 62.165757][ T21] rxrpc_call_completed+0xca/0xf0 [ 62.170842][ T21] rxrpc_discard_prealloc+0x781/0xab0 [ 62.176211][ T21] ? lock_sock_nested+0x94/0x110 [ 62.181153][ T21] rxrpc_listen+0x147/0x360 [ 62.185648][ T21] afs_close_socket+0x95/0x320 [ 62.190398][ T21] ? afs_purge_servers+0x16d/0x300 [ 62.195485][ T21] ? afs_rx_discard_new_call+0x50/0x50 [ 62.200938][ T21] ? init_wait_var_entry+0x200/0x200 [ 62.206212][ T21] ? rcu_read_lock_held_common+0xa0/0xa0 [ 62.211821][ T21] ? check_preemption_disabled+0x38/0x220 [ 62.217514][ T21] afs_net_exit+0x1bc/0x310 [ 62.222165][ T21] ? afs_net_init+0xe30/0xe30 [ 62.226816][ T21] ops_exit_list.isra.0+0xa8/0x150 [ 62.231986][ T21] cleanup_net+0x511/0xa50 [ 62.236394][ T21] ? unregister_pernet_device+0x70/0x70 [ 62.242013][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.247974][ T21] process_one_work+0x965/0x1690 [ 62.252907][ T21] ? lock_release+0x800/0x800 [ 62.257567][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 62.262932][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 62.267853][ T21] worker_thread+0x96/0xe10 [ 62.272342][ T21] ? process_one_work+0x1690/0x1690 [ 62.277512][ T21] kthread+0x3b5/0x4a0 [ 62.281575][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.287264][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.292957][ T21] ret_from_fork+0x1f/0x30 [ 62.297965][ T21] Kernel Offset: disabled [ 62.302280][ T21] Rebooting in 86400 seconds..