Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.240' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 67.960459][ T6591] loop0: detected capacity change from 0 to 512 [ 67.970244][ T6591] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 67.982715][ T6591] EXT4-fs (loop0): get root inode failed [ 67.988547][ T6591] EXT4-fs (loop0): mount failed executing program [ 68.055357][ T6600] loop0: detected capacity change from 0 to 512 [ 68.097479][ T6600] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 68.110298][ T6600] EXT4-fs (loop0): get root inode failed [ 68.115994][ T6600] EXT4-fs (loop0): mount failed executing program [ 68.183519][ T6607] loop0: detected capacity change from 0 to 512 [ 68.192271][ T6607] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 68.205785][ T6607] EXT4-fs (loop0): get root inode failed [ 68.212092][ T6607] EXT4-fs (loop0): mount failed executing program [ 68.304677][ T6614] loop0: detected capacity change from 0 to 512 [ 68.321529][ T6614] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 68.334079][ T6614] EXT4-fs (loop0): get root inode failed [ 68.339911][ T6614] EXT4-fs (loop0): mount failed executing program executing program [ 68.415759][ T6625] loop0: detected capacity change from 0 to 512 [ 68.425051][ T6625] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 68.438274][ T6625] EXT4-fs (loop0): get root inode failed [ 68.443935][ T6625] EXT4-fs (loop0): mount failed executing program [ 68.494738][ T6632] loop0: detected capacity change from 0 to 512 [ 68.512278][ T6632] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 68.524653][ T6632] EXT4-fs (loop0): get root inode failed [ 68.530494][ T6632] EXT4-fs (loop0): mount failed [ 68.570797][ T6639] loop0: detected capacity change from 0 to 512 [ 68.588583][ T6639] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 68.601691][ T6639] EXT4-fs (loop0): get root inode failed [ 68.607585][ T6639] EXT4-fs (loop0): mount failed executing program [ 68.660023][ T6649] loop0: detected capacity change from 0 to 512 [ 68.671893][ T6649] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 68.685593][ T6649] EXT4-fs (loop0): get root inode failed [ 68.691491][ T6649] EXT4-fs (loop0): mount failed executing program executing program [ 68.758460][ T6656] loop0: detected capacity change from 0 to 512 [ 68.767019][ T6656] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 68.779589][ T6656] EXT4-fs (loop0): get root inode failed [ 68.785356][ T6656] EXT4-fs (loop0): mount failed [ 68.832982][ T6663] loop0: detected capacity change from 0 to 512 [ 68.851085][ T6663] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 68.863577][ T6663] EXT4-fs (loop0): get root inode failed [ 68.870375][ T6663] EXT4-fs (loop0): mount failed executing program executing program [ 68.924256][ T6672] loop0: detected capacity change from 0 to 512 [ 68.932562][ T6672] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 68.945074][ T6672] EXT4-fs (loop0): get root inode failed [ 68.950794][ T6672] EXT4-fs (loop0): mount failed [ 69.008209][ T6679] loop0: detected capacity change from 0 to 512 [ 69.016862][ T6679] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 69.029712][ T6679] EXT4-fs (loop0): get root inode failed [ 69.035563][ T6679] EXT4-fs (loop0): mount failed executing program [ 69.099744][ T6686] loop0: detected capacity change from 0 to 512 [ 69.109520][ T6686] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 69.122573][ T6686] EXT4-fs (loop0): get root inode failed [ 69.128862][ T6686] EXT4-fs (loop0): mount failed executing program [ 69.201204][ T6693] loop0: detected capacity change from 0 to 512 [ 69.220052][ T6693] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 69.232548][ T6693] EXT4-fs (loop0): get root inode failed [ 69.239569][ T6693] EXT4-fs (loop0): mount failed executing program [ 69.305436][ T6702] loop0: detected capacity change from 0 to 512 [ 69.313648][ T6702] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 69.325931][ T6702] EXT4-fs (loop0): get root inode failed [ 69.331631][ T6702] EXT4-fs (loop0): mount failed executing program [ 69.413544][ T6709] loop0: detected capacity change from 0 to 512 [ 69.431250][ T6709] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 69.443699][ T6709] EXT4-fs (loop0): get root inode failed [ 69.449754][ T6709] EXT4-fs (loop0): mount failed executing program [ 69.519471][ T6719] loop0: detected capacity change from 0 to 512 [ 69.528070][ T6719] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 69.541512][ T6719] EXT4-fs (loop0): get root inode failed [ 69.547918][ T6719] EXT4-fs (loop0): mount failed executing program [ 69.626209][ T6725] loop0: detected capacity change from 0 to 512 [ 69.634873][ T6725] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 69.647362][ T6725] EXT4-fs (loop0): get root inode failed [ 69.653003][ T6725] EXT4-fs (loop0): mount failed executing program [ 69.737633][ T6734] loop0: detected capacity change from 0 to 512 [ 69.746256][ T6734] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 69.758647][ T6734] EXT4-fs (loop0): get root inode failed [ 69.764418][ T6734] EXT4-fs (loop0): mount failed executing program [ 69.837251][ T6746] loop0: detected capacity change from 0 to 512 [ 69.845178][ T6746] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 69.858647][ T6746] EXT4-fs (loop0): get root inode failed [ 69.864388][ T6746] EXT4-fs (loop0): mount failed executing program [ 69.923040][ T6755] loop0: detected capacity change from 0 to 512 [ 69.931409][ T6755] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 69.944949][ T6755] EXT4-fs (loop0): get root inode failed [ 69.951214][ T6755] EXT4-fs (loop0): mount failed executing program executing program [ 70.024230][ T6763] loop0: detected capacity change from 0 to 512 [ 70.038660][ T6763] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 70.051377][ T6763] EXT4-fs (loop0): get root inode failed [ 70.057920][ T6763] EXT4-fs (loop0): mount failed executing program [ 70.108561][ T6770] loop0: detected capacity change from 0 to 512 [ 70.119899][ T6770] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 70.133137][ T6770] EXT4-fs (loop0): get root inode failed [ 70.139352][ T6770] EXT4-fs (loop0): mount failed [ 70.182787][ T6777] loop0: detected capacity change from 0 to 512 [ 70.200772][ T6777] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 70.213987][ T6777] EXT4-fs (loop0): get root inode failed [ 70.220885][ T6777] EXT4-fs (loop0): mount failed executing program [ 70.288360][ T6786] loop0: detected capacity change from 0 to 512 [ 70.297111][ T6786] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 70.309571][ T6786] EXT4-fs (loop0): get root inode failed [ 70.315222][ T6786] EXT4-fs (loop0): mount failed executing program [ 70.420967][ T6794] loop0: detected capacity change from 0 to 512 [ 70.428828][ T6794] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 70.441390][ T6794] EXT4-fs (loop0): get root inode failed [ 70.448529][ T6794] EXT4-fs (loop0): mount failed executing program [ 70.513281][ T6803] loop0: detected capacity change from 0 to 512 [ 70.521416][ T6803] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 70.534325][ T6803] EXT4-fs (loop0): get root inode failed [ 70.540104][ T6803] EXT4-fs (loop0): mount failed executing program [ 70.600068][ T6811] loop0: detected capacity change from 0 to 512 [ 70.608456][ T6811] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 70.622882][ T6811] EXT4-fs (loop0): get root inode failed [ 70.629230][ T6811] EXT4-fs (loop0): mount failed executing program executing program [ 70.688391][ T6818] loop0: detected capacity change from 0 to 512 [ 70.697162][ T6818] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 70.709555][ T6818] EXT4-fs (loop0): get root inode failed [ 70.715229][ T6818] EXT4-fs (loop0): mount failed [ 70.762706][ T6825] loop0: detected capacity change from 0 to 512 [ 70.770913][ T6825] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 70.784102][ T6825] EXT4-fs (loop0): get root inode failed [ 70.795211][ T6825] EXT4-fs (loop0): mount failed executing program executing program [ 70.865314][ T6833] loop0: detected capacity change from 0 to 512 [ 70.874130][ T6833] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 70.887499][ T6833] EXT4-fs (loop0): get root inode failed [ 70.893144][ T6833] EXT4-fs (loop0): mount failed [ 70.942749][ T6840] loop0: detected capacity change from 0 to 512 [ 70.959678][ T6840] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 70.972359][ T6840] EXT4-fs (loop0): get root inode failed [ 70.978413][ T6840] EXT4-fs (loop0): mount failed executing program [ 71.030417][ T6849] loop0: detected capacity change from 0 to 512 [ 71.038968][ T6849] EXT4-fs error (device loop0): ext4_fill_super:4953: inode #2: comm syz-executor236: iget: root inode unallocated [ 71.053317][ T6849] EXT4-fs (loop0): get root inode failed [ 71.059705][ T6849] EXT4-fs (loop0): mount failed [ 71.108555][ T6849] ================================================================== [ 71.116643][ T6849] BUG: KASAN: use-after-free in bdev_evict_inode+0x3c3/0x410 [ 71.124033][ T6849] Read of size 8 at addr ffff88801aee2060 by task syz-executor236/6849 [ 71.132274][ T6849] [ 71.134598][ T6849] CPU: 0 PID: 6849 Comm: syz-executor236 Not tainted 5.14.0-rc5-next-20210810-syzkaller #0 [ 71.144584][ T6849] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.154672][ T6849] Call Trace: [ 71.157956][ T6849] dump_stack_lvl+0xcd/0x134 [ 71.162576][ T6849] print_address_description.constprop.0.cold+0x6c/0x309 [ 71.169621][ T6849] ? bdev_evict_inode+0x3c3/0x410 [ 71.174659][ T6849] ? bdev_evict_inode+0x3c3/0x410 [ 71.179702][ T6849] kasan_report.cold+0x83/0xdf [ 71.184482][ T6849] ? bdev_evict_inode+0x3c3/0x410 [ 71.189522][ T6849] bdev_evict_inode+0x3c3/0x410 [ 71.194387][ T6849] ? __blkdev_direct_IO_simple+0x910/0x910 [ 71.200210][ T6849] evict+0x2ed/0x6b0 [ 71.204124][ T6849] iput.part.0+0x539/0x850 [ 71.208591][ T6849] iput+0x58/0x70 [ 71.212239][ T6849] ? block_uevent+0x80/0x80 [ 71.216754][ T6849] device_release+0x9f/0x240 [ 71.221361][ T6849] kobject_put+0x1c8/0x540 [ 71.225792][ T6849] put_device+0x1b/0x30 [ 71.229955][ T6849] blk_cleanup_disk+0x6b/0x80 [ 71.234648][ T6849] loop_control_ioctl+0x3db/0x450 [ 71.239686][ T6849] ? loop_queue_rq+0xf60/0xf60 [ 71.244465][ T6849] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.250719][ T6849] ? loop_queue_rq+0xf60/0xf60 [ 71.255497][ T6849] __x64_sys_ioctl+0x193/0x200 [ 71.260278][ T6849] do_syscall_64+0x35/0xb0 [ 71.264708][ T6849] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.270622][ T6849] RIP: 0033:0x4446d9 [ 71.274522][ T6849] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 71.294137][ T6849] RSP: 002b:00007ffe16bebe28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 71.302558][ T6849] RAX: ffffffffffffffda RBX: 000000000001152a RCX: 00000000004446d9 [ 71.310535][ T6849] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 71.318535][ T6849] RBP: 0000000000000000 R08: 00000000004af080 R09: 00000000004af080 [ 71.326512][ T6849] R10: 00000000004af080 R11: 0000000000000246 R12: 00007ffe16bebe50 [ 71.334490][ T6849] R13: 00007ffe16bebe3c R14: 431bde82d7b634db R15: 00000000004004a0 [ 71.342823][ T6849] [ 71.345152][ T6849] Allocated by task 1: [ 71.349258][ T6849] kasan_save_stack+0x1b/0x40 [ 71.353982][ T6849] __kasan_kmalloc+0x9b/0xd0 [ 71.358585][ T6849] bdi_alloc+0x43/0x180 [ 71.362749][ T6849] __alloc_disk_node+0x6e/0x500 [ 71.367615][ T6849] __blk_mq_alloc_disk+0xec/0x190 [ 71.372664][ T6849] loop_add+0x324/0x940 [ 71.376829][ T6849] loop_init+0x1f4/0x216 [ 71.381078][ T6849] do_one_initcall+0x103/0x650 [ 71.385854][ T6849] kernel_init_freeable+0x6b1/0x73a [ 71.391077][ T6849] kernel_init+0x1a/0x1d0 [ 71.395421][ T6849] ret_from_fork+0x1f/0x30 [ 71.399846][ T6849] [ 71.402169][ T6849] Freed by task 6849: [ 71.406144][ T6849] kasan_save_stack+0x1b/0x40 [ 71.410874][ T6849] kasan_set_track+0x1c/0x30 [ 71.415477][ T6849] kasan_set_free_info+0x20/0x30 [ 71.420423][ T6849] __kasan_slab_free+0xfb/0x130 [ 71.425287][ T6849] slab_free_freelist_hook+0x7e/0x190 [ 71.430669][ T6849] kfree+0xe4/0x530 [ 71.434488][ T6849] bdi_put+0x72/0xa0 [ 71.438391][ T6849] disk_release+0x7b/0x270 [ 71.443166][ T6849] device_release+0x9f/0x240 [ 71.447764][ T6849] kobject_put+0x1c8/0x540 [ 71.452199][ T6849] put_device+0x1b/0x30 [ 71.456358][ T6849] blk_cleanup_disk+0x6b/0x80 [ 71.461054][ T6849] loop_control_ioctl+0x3db/0x450 [ 71.466088][ T6849] __x64_sys_ioctl+0x193/0x200 [ 71.470861][ T6849] do_syscall_64+0x35/0xb0 [ 71.475287][ T6849] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.481188][ T6849] [ 71.483553][ T6849] Last potentially related work creation: [ 71.489262][ T6849] kasan_save_stack+0x1b/0x40 [ 71.493951][ T6849] kasan_record_aux_stack+0xe5/0x110 [ 71.499246][ T6849] insert_work+0x48/0x370 [ 71.503588][ T6849] __queue_work+0x5c1/0xed0 [ 71.508108][ T6849] flush_delayed_work+0xc6/0xf0 [ 71.512964][ T6849] wb_shutdown+0x1bb/0x230 [ 71.517386][ T6849] bdi_unregister+0x180/0x5a0 [ 71.522070][ T6849] del_gendisk+0x5a6/0x730 [ 71.526496][ T6849] loop_control_ioctl+0x3b5/0x450 [ 71.531529][ T6849] __x64_sys_ioctl+0x193/0x200 [ 71.536304][ T6849] do_syscall_64+0x35/0xb0 [ 71.540728][ T6849] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.546634][ T6849] [ 71.548962][ T6849] Second to last potentially related work creation: [ 71.555538][ T6849] kasan_save_stack+0x1b/0x40 [ 71.560227][ T6849] kasan_record_aux_stack+0xe5/0x110 [ 71.565517][ T6849] insert_work+0x48/0x370 [ 71.569859][ T6849] __queue_work+0x5c1/0xed0 [ 71.574469][ T6849] __queue_delayed_work+0x1c8/0x270 [ 71.579770][ T6849] mod_delayed_work_on+0xdd/0x220 [ 71.584801][ T6849] wb_shutdown+0x178/0x230 [ 71.589225][ T6849] bdi_unregister+0x180/0x5a0 [ 71.593907][ T6849] del_gendisk+0x5a6/0x730 [ 71.598343][ T6849] loop_control_ioctl+0x3b5/0x450 [ 71.603463][ T6849] __x64_sys_ioctl+0x193/0x200 [ 71.608238][ T6849] do_syscall_64+0x35/0xb0 [ 71.612662][ T6849] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.618559][ T6849] [ 71.620877][ T6849] The buggy address belongs to the object at ffff88801aee2000 [ 71.620877][ T6849] which belongs to the cache kmalloc-4k of size 4096 [ 71.634933][ T6849] The buggy address is located 96 bytes inside of [ 71.634933][ T6849] 4096-byte region [ffff88801aee2000, ffff88801aee3000) [ 71.648732][ T6849] The buggy address belongs to the page: [ 71.654356][ T6849] page:ffffea00006bb800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1aee0 [ 71.664510][ T6849] head:ffffea00006bb800 order:3 compound_mapcount:0 compound_pincount:0 [ 71.672835][ T6849] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) [ 71.680830][ T6849] raw: 00fff00000010200 0000000000000000 0000000300000001 ffff888010842140 [ 71.689423][ T6849] raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000 [ 71.698002][ T6849] page dumped because: kasan: bad access detected [ 71.704409][ T6849] page_owner tracks the page as allocated [ 71.710119][ T6849] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, ts 7546472052, free_ts 0 [ 71.728012][ T6849] get_page_from_freelist+0xa72/0x2f80 [ 71.733482][ T6849] __alloc_pages+0x1b2/0x500 [ 71.738081][ T6849] alloc_page_interleave+0x1e/0x200 [ 71.743294][ T6849] alloc_pages+0x29f/0x300 [ 71.747723][ T6849] new_slab+0x319/0x490 [ 71.751894][ T6849] ___slab_alloc+0x8b9/0xf50 [ 71.756494][ T6849] __slab_alloc.constprop.0+0x4d/0xa0 [ 71.761877][ T6849] kmem_cache_alloc_trace+0x305/0x3c0 [ 71.767267][ T6849] kobject_uevent_env+0x240/0x1650 [ 71.772386][ T6849] device_add+0xbc6/0x21b0 [ 71.776807][ T6849] device_create_groups_vargs+0x203/0x280 [ 71.782538][ T6849] device_create_with_groups+0xe3/0x120 [ 71.788097][ T6849] misc_register+0x20a/0x690 [ 71.792695][ T6849] loop_init+0x17a/0x216 [ 71.796945][ T6849] do_one_initcall+0x103/0x650 [ 71.801719][ T6849] kernel_init_freeable+0x6b1/0x73a [ 71.806929][ T6849] page_owner free stack trace missing [ 71.812288][ T6849] [ 71.814607][ T6849] Memory state around the buggy address: [ 71.820232][ T6849] ffff88801aee1f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 71.828297][ T6849] ffff88801aee1f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 71.836360][ T6849] >ffff88801aee2000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 71.844922][ T6849] ^ [ 71.852111][ T6849] ffff88801aee2080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 71.860177][ T6849] ffff88801aee2100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 71.868239][ T6849] ================================================================== [ 71.879945][ T6849] Kernel panic - not syncing: panic_on_warn set ... [ 71.886536][ T6849] CPU: 0 PID: 6849 Comm: syz-executor236 Tainted: G B 5.14.0-rc5-next-20210810-syzkaller #0 [ 71.898171][ T6849] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.908226][ T6849] Call Trace: [ 71.911512][ T6849] dump_stack_lvl+0xcd/0x134 [ 71.916119][ T6849] panic+0x2b0/0x6dd [ 71.920029][ T6849] ? __warn_printk+0xf3/0xf3 [ 71.924635][ T6849] ? preempt_schedule_common+0x59/0xc0 [ 71.930111][ T6849] ? bdev_evict_inode+0x3c3/0x410 [ 71.935146][ T6849] ? preempt_schedule_thunk+0x16/0x18 [ 71.940535][ T6849] ? trace_hardirqs_on+0x38/0x1c0 [ 71.945571][ T6849] ? trace_hardirqs_on+0x51/0x1c0 [ 71.950607][ T6849] ? bdev_evict_inode+0x3c3/0x410 [ 71.955640][ T6849] ? bdev_evict_inode+0x3c3/0x410 [ 71.960671][ T6849] end_report.cold+0x63/0x6f [ 71.965281][ T6849] kasan_report.cold+0x71/0xdf [ 71.970060][ T6849] ? bdev_evict_inode+0x3c3/0x410 [ 71.975095][ T6849] bdev_evict_inode+0x3c3/0x410 [ 71.979956][ T6849] ? __blkdev_direct_IO_simple+0x910/0x910 [ 71.985773][ T6849] evict+0x2ed/0x6b0 [ 71.989682][ T6849] iput.part.0+0x539/0x850 [ 71.994116][ T6849] iput+0x58/0x70 [ 71.997758][ T6849] ? block_uevent+0x80/0x80 [ 72.002268][ T6849] device_release+0x9f/0x240 [ 72.006867][ T6849] kobject_put+0x1c8/0x540 [ 72.011292][ T6849] put_device+0x1b/0x30 [ 72.015457][ T6849] blk_cleanup_disk+0x6b/0x80 [ 72.020151][ T6849] loop_control_ioctl+0x3db/0x450 [ 72.025185][ T6849] ? loop_queue_rq+0xf60/0xf60 [ 72.029962][ T6849] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 72.036214][ T6849] ? loop_queue_rq+0xf60/0xf60 [ 72.040999][ T6849] __x64_sys_ioctl+0x193/0x200 [ 72.045772][ T6849] do_syscall_64+0x35/0xb0 [ 72.050203][ T6849] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 72.056117][ T6849] RIP: 0033:0x4446d9 [ 72.060016][ T6849] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 72.079627][ T6849] RSP: 002b:00007ffe16bebe28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 72.088048][ T6849] RAX: ffffffffffffffda RBX: 000000000001152a RCX: 00000000004446d9 [ 72.096024][ T6849] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 72.104003][ T6849] RBP: 0000000000000000 R08: 00000000004af080 R09: 00000000004af080 [ 72.111976][ T6849] R10: 00000000004af080 R11: 0000000000000246 R12: 00007ffe16bebe50 [ 72.119951][ T6849] R13: 00007ffe16bebe3c R14: 431bde82d7b634db R15: 00000000004004a0 [ 72.129127][ T6849] Kernel Offset: disabled [ 72.133446][ T6849] Rebooting in 86400 seconds..