Warning: Permanently added '10.128.0.200' (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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 276.825111] ================================================================== [ 276.832609] BUG: KASAN: use-after-free in __lock_acquire+0x2cb4/0x3ff0 [ 276.839261] Read of size 8 at addr ffff8880a32d8768 by task loop4/13650 [ 276.846002] [ 276.847635] CPU: 0 PID: 13650 Comm: loop4 Not tainted 4.19.155-syzkaller #0 [ 276.854731] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 276.864096] Call Trace: [ 276.866738] dump_stack+0x1fc/0x2fe [ 276.870419] print_address_description.cold+0x54/0x219 [ 276.875693] kasan_report_error.cold+0x8a/0x1c7 [ 276.880361] ? __lock_acquire+0x2cb4/0x3ff0 [ 276.884675] __asan_report_load8_noabort+0x88/0x90 [ 276.889628] ? __lock_acquire+0x2cb4/0x3ff0 [ 276.893945] __lock_acquire+0x2cb4/0x3ff0 [ 276.898245] ? trace_hardirqs_off+0x64/0x200 [ 276.902650] ? __kasan_slab_free+0x186/0x1f0 [ 276.907091] ? kmem_cache_free+0x7f/0x260 [ 276.911312] ? mempool_free+0xe3/0x370 [ 276.915226] ? bio_free+0xee/0x140 [ 276.918770] ? mark_held_locks+0xf0/0xf0 [ 276.922889] ? blk_update_request+0x30f/0xaf0 [ 276.927416] ? blk_mq_end_request+0x4a/0x340 [ 276.931937] ? lo_complete_rq+0x201/0x2d0 [ 276.936086] ? blk_mq_complete_request+0x472/0x660 [ 276.941011] ? loop_queue_work+0x274/0x20c0 [ 276.945442] ? kthread_worker_fn+0x292/0x730 [ 276.949854] ? kthread+0x33f/0x460 [ 276.953427] ? ret_from_fork+0x24/0x30 [ 276.957345] ? debug_check_no_obj_freed+0x201/0x482 [ 276.962361] ? lock_downgrade+0x720/0x720 [ 276.966495] ? lock_acquire+0x170/0x3c0 [ 276.970462] lock_acquire+0x170/0x3c0 [ 276.974303] ? __wake_up_common_lock+0xb0/0x170 [ 276.978988] _raw_spin_lock_irqsave+0x8c/0xc0 [ 276.983488] ? __wake_up_common_lock+0xb0/0x170 [ 276.988149] __wake_up_common_lock+0xb0/0x170 [ 276.992715] ? __wake_up_common+0x650/0x650 [ 276.997024] ? _raw_spin_unlock_irqrestore+0xa3/0xe0 [ 277.002165] lbmIODone+0x44b/0xf40 [ 277.005691] ? lock_downgrade+0x720/0x720 [ 277.009833] ? lock_acquire+0x170/0x3c0 [ 277.013850] ? scale_cookie_change.isra.0+0x380/0x380 [ 277.019026] ? lbmFree+0x100/0x100 [ 277.022553] bio_endio+0x471/0x810 [ 277.026080] blk_update_request+0x30f/0xaf0 [ 277.030415] blk_mq_end_request+0x4a/0x340 [ 277.034649] lo_complete_rq+0x201/0x2d0 [ 277.038640] blk_mq_complete_request+0x472/0x660 [ 277.043403] loop_queue_work+0x274/0x20c0 [ 277.047610] ? finish_task_switch+0x1db/0x780 [ 277.052120] ? switch_mm_irqs_off+0x2e5/0x1340 [ 277.056688] ? lo_fallocate.isra.0+0x170/0x170 [ 277.061249] ? kthread_worker_fn+0x217/0x730 [ 277.065653] ? kthread_worker_fn+0x3e4/0x730 [ 277.070044] ? _raw_spin_unlock_irq+0x24/0x80 [ 277.074520] kthread_worker_fn+0x292/0x730 [ 277.078737] ? __kthread_init_worker+0xf0/0xf0 [ 277.083308] ? __kthread_parkme+0x133/0x1e0 [ 277.087624] ? loop_info64_to_compat+0x5e0/0x5e0 [ 277.092371] kthread+0x33f/0x460 [ 277.095739] ? kthread_park+0x180/0x180 [ 277.099726] ret_from_fork+0x24/0x30 [ 277.103418] [ 277.105025] Allocated by task 13638: [ 277.108738] kmem_cache_alloc_trace+0x12f/0x380 [ 277.113395] lmLogInit+0x301/0x13d0 [ 277.117020] lmLogOpen+0x718/0x11e0 [ 277.120705] jfs_mount_rw+0x286/0x4b0 [ 277.124544] jfs_fill_super+0x814/0xb50 [ 277.128560] mount_bdev+0x2fc/0x3b0 [ 277.132192] mount_fs+0xa3/0x30c [ 277.135642] vfs_kern_mount.part.0+0x68/0x470 [ 277.140144] do_mount+0x113c/0x2f10 [ 277.143768] ksys_mount+0xcf/0x130 [ 277.147286] __x64_sys_mount+0xba/0x150 [ 277.151272] do_syscall_64+0xf9/0x620 [ 277.155076] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 277.160245] [ 277.161857] Freed by task 13638: [ 277.165222] kfree+0xcc/0x210 [ 277.168321] lmLogInit+0xf85/0x13d0 [ 277.171937] lmLogOpen+0x718/0x11e0 [ 277.175543] jfs_mount_rw+0x286/0x4b0 [ 277.179325] jfs_fill_super+0x814/0xb50 [ 277.183301] mount_bdev+0x2fc/0x3b0 [ 277.186932] mount_fs+0xa3/0x30c [ 277.190293] vfs_kern_mount.part.0+0x68/0x470 [ 277.194773] do_mount+0x113c/0x2f10 [ 277.198381] ksys_mount+0xcf/0x130 [ 277.201913] __x64_sys_mount+0xba/0x150 [ 277.205869] do_syscall_64+0xf9/0x620 [ 277.209650] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 277.214840] [ 277.216452] The buggy address belongs to the object at ffff8880a32d8700 [ 277.216452] which belongs to the cache kmalloc-192 of size 192 [ 277.229107] The buggy address is located 104 bytes inside of [ 277.229107] 192-byte region [ffff8880a32d8700, ffff8880a32d87c0) [ 277.240968] The buggy address belongs to the page: [ 277.245901] page:ffffea00028cb600 count:1 mapcount:0 mapping:ffff88813bff0040 index:0x0 [ 277.254031] flags: 0xfff00000000100(slab) [ 277.258176] raw: 00fff00000000100 ffffea00026b9a08 ffffea0002993608 ffff88813bff0040 [ 277.266057] raw: 0000000000000000 ffff8880a32d8000 0000000100000010 0000000000000000 [ 277.273914] page dumped because: kasan: bad access detected [ 277.279604] [ 277.281230] Memory state around the buggy address: [ 277.286184] ffff8880a32d8600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 277.293526] ffff8880a32d8680: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 277.300893] >ffff8880a32d8700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 277.308266] ^ [ 277.315034] ffff8880a32d8780: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 277.322402] ffff8880a32d8800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 277.329805] ================================================================== [ 277.337158] Disabling lock debugging due to kernel taint [ 277.342617] Kernel panic - not syncing: panic_on_warn set ... [ 277.342617] [ 277.350024] CPU: 0 PID: 13650 Comm: loop4 Tainted: G B 4.19.155-syzkaller #0 [ 277.358500] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 277.367842] Call Trace: [ 277.370468] dump_stack+0x1fc/0x2fe [ 277.374181] panic+0x26a/0x50e [ 277.377369] ? __warn_printk+0xf3/0xf3 [ 277.381247] ? lock_downgrade+0x720/0x720 [ 277.385379] ? print_shadow_for_address+0xb8/0x114 [ 277.390300] ? trace_hardirqs_off+0x64/0x200 [ 277.394691] kasan_end_report+0x43/0x49 [ 277.398650] kasan_report_error.cold+0xa7/0x1c7 [ 277.403324] ? __lock_acquire+0x2cb4/0x3ff0 [ 277.407673] __asan_report_load8_noabort+0x88/0x90 [ 277.412601] ? __lock_acquire+0x2cb4/0x3ff0 [ 277.416923] __lock_acquire+0x2cb4/0x3ff0 [ 277.421071] ? trace_hardirqs_off+0x64/0x200 [ 277.425472] ? __kasan_slab_free+0x186/0x1f0 [ 277.429882] ? kmem_cache_free+0x7f/0x260 [ 277.434021] ? mempool_free+0xe3/0x370 [ 277.437898] ? bio_free+0xee/0x140 [ 277.441438] ? mark_held_locks+0xf0/0xf0 [ 277.445499] ? blk_update_request+0x30f/0xaf0 [ 277.450935] ? blk_mq_end_request+0x4a/0x340 [ 277.455388] ? lo_complete_rq+0x201/0x2d0 [ 277.459578] ? blk_mq_complete_request+0x472/0x660 [ 277.464554] ? loop_queue_work+0x274/0x20c0 [ 277.468888] ? kthread_worker_fn+0x292/0x730 [ 277.473335] ? kthread+0x33f/0x460 [ 277.476982] ? ret_from_fork+0x24/0x30 [ 277.480889] ? debug_check_no_obj_freed+0x201/0x482 [ 277.485923] ? lock_downgrade+0x720/0x720 [ 277.490146] ? lock_acquire+0x170/0x3c0 [ 277.494277] lock_acquire+0x170/0x3c0 [ 277.498124] ? __wake_up_common_lock+0xb0/0x170 [ 277.502801] _raw_spin_lock_irqsave+0x8c/0xc0 [ 277.507328] ? __wake_up_common_lock+0xb0/0x170 [ 277.512045] __wake_up_common_lock+0xb0/0x170 [ 277.516567] ? __wake_up_common+0x650/0x650 [ 277.520909] ? _raw_spin_unlock_irqrestore+0xa3/0xe0 [ 277.526023] lbmIODone+0x44b/0xf40 [ 277.529572] ? lock_downgrade+0x720/0x720 [ 277.533709] ? lock_acquire+0x170/0x3c0 [ 277.537691] ? scale_cookie_change.isra.0+0x380/0x380 [ 277.542891] ? lbmFree+0x100/0x100 [ 277.546437] bio_endio+0x471/0x810 [ 277.549968] blk_update_request+0x30f/0xaf0 [ 277.554289] blk_mq_end_request+0x4a/0x340 [ 277.558537] lo_complete_rq+0x201/0x2d0 [ 277.562497] blk_mq_complete_request+0x472/0x660 [ 277.567239] loop_queue_work+0x274/0x20c0 [ 277.571403] ? finish_task_switch+0x1db/0x780 [ 277.575898] ? switch_mm_irqs_off+0x2e5/0x1340 [ 277.580488] ? lo_fallocate.isra.0+0x170/0x170 [ 277.585055] ? kthread_worker_fn+0x217/0x730 [ 277.589469] ? kthread_worker_fn+0x3e4/0x730 [ 277.593880] ? _raw_spin_unlock_irq+0x24/0x80 [ 277.598408] kthread_worker_fn+0x292/0x730 [ 277.602665] ? __kthread_init_worker+0xf0/0xf0 [ 277.607253] ? __kthread_parkme+0x133/0x1e0 [ 277.611612] ? loop_info64_to_compat+0x5e0/0x5e0 [ 277.616397] kthread+0x33f/0x460 [ 277.619779] ? kthread_park+0x180/0x180 [ 277.623780] ret_from_fork+0x24/0x30 [ 277.627945] Kernel Offset: disabled [ 277.631599] Rebooting in 86400 seconds..