Warning: Permanently added '10.128.0.57' (ECDSA) to the list of known hosts. [ 54.370358][ T8395] IPVS: ftp: loaded support on port[0] = 21 [ 54.379524][ T8393] IPVS: ftp: loaded support on port[0] = 21 [ 54.384729][ T8398] IPVS: ftp: loaded support on port[0] = 21 [ 54.389147][ T8397] IPVS: ftp: loaded support on port[0] = 21 [ 54.395637][ T8400] IPVS: ftp: loaded support on port[0] = 21 [ 54.401274][ T8399] IPVS: ftp: loaded support on port[0] = 21 [ 54.618489][ T521] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.649046][ T114] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.665721][ T521] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.673764][ T254] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.681646][ T254] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.687370][ T114] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.729752][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 54.742203][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 54.763353][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 54.778465][ T254] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.792057][ T400] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.799679][ T254] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.817547][ T400] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.849654][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 54.867323][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 54.893227][ T400] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.901237][ T400] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.911639][ T254] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.921437][ T114] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.950191][ T114] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.957631][ T176] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.968104][ T521] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.989601][ T254] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.989620][ T176] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 55.011658][ T521] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 55.027589][ T51] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.034112][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 55.050392][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 55.056939][ T51] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 55.062829][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 55.083182][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 55.091238][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program executing program executing program executing program executing program [ 55.100380][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program executing program executing program executing program executing program [ 55.170925][ T51] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.180096][ T51] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 55.188791][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 58.620175][ T9705] sysfs: cannot create duplicate filename '/dev/block/7:0' [ 58.629568][ T9705] CPU: 0 PID: 9705 Comm: syz-executor193 Not tainted 5.12.0-rc3-syzkaller #0 [ 58.638341][ T9705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.648648][ T9705] Call Trace: [ 58.651912][ T9705] dump_stack+0x141/0x1d7 [ 58.656254][ T9705] sysfs_warn_dup.cold+0x1c/0x29 [ 58.661182][ T9705] sysfs_do_create_link_sd+0x11e/0x140 [ 58.667011][ T9705] sysfs_create_link+0x5f/0xc0 [ 58.672121][ T9705] device_add+0xf53/0x1db0 [ 58.677295][ T9705] ? lockdep_init_map_type+0x2c3/0x7b0 [ 58.683169][ T9705] ? memset+0x20/0x40 [ 58.687248][ T9705] ? __fw_devlink_link_to_suppliers+0x5e0/0x5e0 [ 58.693502][ T9705] ? __init_waitqueue_head+0x6b/0xd0 [ 58.698804][ T9705] add_partition+0x4f1/0x880 [ 58.703410][ T9705] ? partition_overlaps+0x200/0x200 [ 58.708800][ T9705] bdev_add_partition+0xb6/0x130 [ 58.713729][ T9705] blkpg_do_ioctl+0x2d0/0x340 [ 58.718576][ T9705] ? blkdev_pr_preempt+0x260/0x260 [ 58.724255][ T9705] blkdev_ioctl+0x577/0x6d0 [ 58.728775][ T9705] ? blkdev_common_ioctl+0x17e0/0x17e0 [ 58.734246][ T9705] block_ioctl+0xf9/0x140 [ 58.738886][ T9705] ? blkdev_read_iter+0x180/0x180 [ 58.744288][ T9705] __x64_sys_ioctl+0x193/0x200 [ 58.749641][ T9705] do_syscall_64+0x2d/0x70 [ 58.754489][ T9705] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 58.760541][ T9705] RIP: 0033:0x445739 [ 58.764418][ T9705] 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 [ 58.784180][ T9705] RSP: 002b:00007ffca5947308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 58.792666][ T9705] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445739 [ 58.800714][ T9705] RDX: 0000000020000240 RSI: 0000000000001269 RDI: 0000000000000003 [ 58.809101][ T9705] RBP: 00007ffca5947380 R08: 000000000000e4b6 R09: 000000000000e4b6 [ 58.817160][ T9705] R10: 0023706f6f6c2f76 R11: 0000000000000246 R12: 0000000000000000 [ 58.825124][ T9705] R13: 00007ffca5947370 R14: 00007ffca5947360 R15: 00007ffca594732c executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 60.413940][T10195] sysfs: cannot create duplicate filename '/dev/block/7:0' [ 60.421563][T10195] CPU: 0 PID: 10195 Comm: syz-executor193 Not tainted 5.12.0-rc3-syzkaller #0 [ 60.430650][T10195] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.440904][T10195] Call Trace: [ 60.444183][T10195] dump_stack+0x141/0x1d7 [ 60.448525][T10195] sysfs_warn_dup.cold+0x1c/0x29 [ 60.453471][T10195] sysfs_do_create_link_sd+0x11e/0x140 [ 60.458940][T10195] sysfs_create_link+0x5f/0xc0 [ 60.463711][T10195] device_add+0xf53/0x1db0 [ 60.468144][T10195] ? lockdep_init_map_type+0x2c3/0x7b0 [ 60.473852][T10195] ? memset+0x20/0x40 [ 60.477821][T10195] ? __fw_devlink_link_to_suppliers+0x5e0/0x5e0 [ 60.484054][T10195] ? __init_waitqueue_head+0x6b/0xd0 [ 60.489438][T10195] add_partition+0x4f1/0x880 [ 60.494016][T10195] ? partition_overlaps+0x200/0x200 [ 60.499583][T10195] bdev_add_partition+0xb6/0x130 [ 60.504513][T10195] blkpg_do_ioctl+0x2d0/0x340 [ 60.509460][T10195] ? blkdev_pr_preempt+0x260/0x260 [ 60.514589][T10195] blkdev_ioctl+0x577/0x6d0 [ 60.519104][T10195] ? blkdev_common_ioctl+0x17e0/0x17e0 [ 60.524576][T10195] block_ioctl+0xf9/0x140 [ 60.528897][T10195] ? blkdev_read_iter+0x180/0x180 [ 60.533934][T10195] __x64_sys_ioctl+0x193/0x200 [ 60.538702][T10195] do_syscall_64+0x2d/0x70 [ 60.543281][T10195] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 60.549161][T10195] RIP: 0033:0x445739 [ 60.553042][T10195] 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 [ 60.572730][T10195] RSP: 002b:00007ffca5947308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 60.581138][T10195] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445739 [ 60.589118][T10195] RDX: 0000000020000240 RSI: 0000000000001269 RDI: 0000000000000003 [ 60.597074][T10195] RBP: 00007ffca5947380 R08: 000000000000eb9e R09: 000000000000eb9e [ 60.605034][T10195] R10: 0023706f6f6c2f76 R11: 0000000000000246 R12: 0000000000000000 executing program executing program executing program executing program executing program executing program executing program [ 60.613003][T10195] R13: 00007ffca5947370 R14: 00007ffca5947360 R15: 00007ffca594732c executing program executing program executing program executing program executing program executing program executing program executing program [ 60.843248][T10255] ================================================================== [ 60.851906][T10255] BUG: KASAN: use-after-free in disk_part_iter_next+0x49d/0x530 [ 60.859551][T10255] Read of size 8 at addr ffff88803268d0a8 by task syz-executor193/10255 [ 60.867884][T10255] [ 60.870214][T10255] CPU: 0 PID: 10255 Comm: syz-executor193 Not tainted 5.12.0-rc3-syzkaller #0 [ 60.879063][T10255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.889130][T10255] Call Trace: [ 60.892407][T10255] dump_stack+0x141/0x1d7 [ 60.896744][T10255] ? disk_part_iter_next+0x49d/0x530 [ 60.902034][T10255] print_address_description.constprop.0.cold+0x5b/0x2f8 [ 60.909078][T10255] ? disk_part_iter_next+0x49d/0x530 [ 60.914552][T10255] ? disk_part_iter_next+0x49d/0x530 [ 60.919849][T10255] kasan_report.cold+0x7c/0xd8 [ 60.924633][T10255] ? disk_part_iter_next+0x49d/0x530 [ 60.929934][T10255] disk_part_iter_next+0x49d/0x530 [ 60.935068][T10255] ? disk_part_iter_init+0xe0/0xe0 [ 60.940200][T10255] ? mutex_lock_io_nested+0xf70/0xf70 [ 60.945591][T10255] partition_overlaps+0x96/0x200 [ 60.950542][T10255] ? part_ro_show+0x30/0x30 [ 60.955066][T10255] bdev_add_partition+0x66/0x130 [ 60.960022][T10255] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 60.966283][T10255] blkpg_do_ioctl+0x2d0/0x340 [ 60.970975][T10255] ? blkdev_pr_preempt+0x260/0x260 [ 60.976120][T10255] blkdev_ioctl+0x577/0x6d0 [ 60.980626][T10255] ? blkdev_common_ioctl+0x17e0/0x17e0 [ 60.986108][T10255] block_ioctl+0xf9/0x140 [ 60.990440][T10255] ? blkdev_read_iter+0x180/0x180 [ 60.995468][T10255] __x64_sys_ioctl+0x193/0x200 [ 61.000233][T10255] do_syscall_64+0x2d/0x70 [ 61.004667][T10255] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 61.010562][T10255] RIP: 0033:0x445739 [ 61.014451][T10255] 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 [ 61.034056][T10255] RSP: 002b:00007ffca5947308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 61.042478][T10255] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445739 [ 61.050447][T10255] RDX: 0000000020000240 RSI: 0000000000001269 RDI: 0000000000000003 [ 61.058417][T10255] RBP: 00007ffca5947380 R08: 000000000000ece4 R09: 000000000000ece4 [ 61.066388][T10255] R10: 0023706f6f6c2f76 R11: 0000000000000246 R12: 0000000000000000 [ 61.074366][T10255] R13: 00007ffca5947370 R14: 00007ffca5947360 R15: 00007ffca594732c [ 61.082359][T10255] [ 61.084676][T10255] Allocated by task 10192: [ 61.089082][T10255] kasan_save_stack+0x1b/0x40 [ 61.093766][T10255] __kasan_slab_alloc+0x75/0x90 [ 61.098618][T10255] kmem_cache_alloc+0x155/0x370 [ 61.103466][T10255] bdev_alloc_inode+0x18/0x80 [ 61.108142][T10255] alloc_inode+0x61/0x230 [ 61.112468][T10255] new_inode+0x27/0x2f0 [ 61.116617][T10255] bdev_alloc+0x20/0x2f0 [ 61.120856][T10255] add_partition+0x1ab/0x880 [ 61.125447][T10255] bdev_add_partition+0xb6/0x130 [ 61.130382][T10255] blkpg_do_ioctl+0x2d0/0x340 [ 61.135157][T10255] blkdev_ioctl+0x577/0x6d0 [ 61.139662][T10255] block_ioctl+0xf9/0x140 [ 61.143990][T10255] __x64_sys_ioctl+0x193/0x200 [ 61.148763][T10255] do_syscall_64+0x2d/0x70 [ 61.153265][T10255] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 61.159160][T10255] [ 61.161475][T10255] Freed by task 0: [ 61.165180][T10255] kasan_save_stack+0x1b/0x40 [ 61.169853][T10255] kasan_set_track+0x1c/0x30 [ 61.174436][T10255] kasan_set_free_info+0x20/0x30 [ 61.179373][T10255] __kasan_slab_free+0xf5/0x130 [ 61.184223][T10255] slab_free_freelist_hook+0x92/0x210 [ 61.189595][T10255] kmem_cache_free+0x8a/0x740 [ 61.194269][T10255] i_callback+0x3f/0x70 [ 61.198426][T10255] rcu_core+0x74a/0x12f0 [ 61.202669][T10255] __do_softirq+0x29b/0x9f6 [ 61.207181][T10255] [ 61.209500][T10255] Last potentially related work creation: [ 61.215320][T10255] kasan_save_stack+0x1b/0x40 [ 61.220092][T10255] kasan_record_aux_stack+0xe5/0x110 [ 61.225376][T10255] call_rcu+0xb1/0x740 [ 61.229442][T10255] destroy_inode+0x129/0x1b0 [ 61.234025][T10255] iput.part.0+0x57e/0x810 [ 61.238435][T10255] iput+0x58/0x70 [ 61.242061][T10255] disk_part_iter_next+0x9a/0x530 [ 61.247081][T10255] blk_drop_partitions+0x10a/0x180 [ 61.252187][T10255] bdev_disk_changed+0x238/0x430 [ 61.257120][T10255] __loop_clr_fd+0x7c7/0xff0 [ 61.261802][T10255] lo_release+0x1ac/0x1f0 [ 61.266212][T10255] __blkdev_put+0x54e/0x800 [ 61.270709][T10255] blkdev_put+0x92/0x580 [ 61.274954][T10255] blkdev_close+0x8c/0xb0 [ 61.279288][T10255] __fput+0x288/0x920 [ 61.283275][T10255] task_work_run+0xdd/0x1a0 [ 61.287774][T10255] exit_to_user_mode_prepare+0x249/0x250 [ 61.293574][T10255] syscall_exit_to_user_mode+0x19/0x60 [ 61.299030][T10255] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 61.304922][T10255] [ 61.307235][T10255] Second to last potentially related work creation: [ 61.313804][T10255] kasan_save_stack+0x1b/0x40 [ 61.318475][T10255] kasan_record_aux_stack+0xe5/0x110 [ 61.323759][T10255] call_rcu+0xb1/0x740 [ 61.327823][T10255] destroy_inode+0x129/0x1b0 [ 61.332408][T10255] iput.part.0+0x57e/0x810 [ 61.336815][T10255] iput+0x58/0x70 [ 61.340440][T10255] disk_part_iter_next+0x9a/0x530 [ 61.345457][T10255] blk_drop_partitions+0x10a/0x180 [ 61.350562][T10255] bdev_disk_changed+0x238/0x430 [ 61.355497][T10255] __blkdev_get+0x86c/0xa30 [ 61.359996][T10255] blkdev_get_by_dev+0x26c/0x600 [ 61.364927][T10255] blkdev_common_ioctl+0x137e/0x17e0 [ 61.370211][T10255] blkdev_ioctl+0x1ef/0x6d0 [ 61.374722][T10255] block_ioctl+0xf9/0x140 [ 61.379052][T10255] __x64_sys_ioctl+0x193/0x200 [ 61.383814][T10255] do_syscall_64+0x2d/0x70 [ 61.388229][T10255] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 61.394385][T10255] [ 61.396705][T10255] The buggy address belongs to the object at ffff88803268d080 [ 61.396705][T10255] which belongs to the cache bdev_cache of size 2792 [ 61.410749][T10255] The buggy address is located 40 bytes inside of [ 61.410749][T10255] 2792-byte region [ffff88803268d080, ffff88803268db68) [ 61.424016][T10255] The buggy address belongs to the page: [ 61.429722][T10255] page:ffffea0000c9a200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x32688 [ 61.439864][T10255] head:ffffea0000c9a200 order:3 compound_mapcount:0 compound_pincount:0 [ 61.448184][T10255] flags: 0xfff00000010200(slab|head) [ 61.453469][T10255] raw: 00fff00000010200 ffffea0005110a00 0000000200000002 ffff8880109bdb40 [ 61.462051][T10255] raw: 0000000000000000 00000000800b000b 00000001ffffffff 0000000000000000 [ 61.470623][T10255] page dumped because: kasan: bad access detected [ 61.477022][T10255] [ 61.479340][T10255] Memory state around the buggy address: [ 61.484966][T10255] ffff88803268cf80: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc [ 61.493019][T10255] ffff88803268d000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 61.501192][T10255] >ffff88803268d080: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 61.509418][T10255] ^ [ 61.514782][T10255] ffff88803268d100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 61.522842][T10255] ffff88803268d180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 61.530910][T10255] ================================================================== [ 61.539055][T10255] Disabling lock debugging due to kernel taint [ 61.548466][T10255] Kernel panic - not syncing: panic_on_warn set ... [ 61.555140][T10255] CPU: 0 PID: 10255 Comm: syz-executor193 Tainted: G B 5.12.0-rc3-syzkaller #0 [ 61.565390][T10255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.575440][T10255] Call Trace: [ 61.578712][T10255] dump_stack+0x141/0x1d7 [ 61.583047][T10255] panic+0x306/0x73d [ 61.586938][T10255] ? __warn_printk+0xf3/0xf3 [ 61.591524][T10255] ? preempt_schedule_common+0x59/0xc0 [ 61.596978][T10255] ? disk_part_iter_next+0x49d/0x530 [ 61.602260][T10255] ? preempt_schedule_thunk+0x16/0x18 [ 61.607675][T10255] ? trace_hardirqs_on+0x38/0x1c0 [ 61.612700][T10255] ? trace_hardirqs_on+0x51/0x1c0 [ 61.617722][T10255] ? disk_part_iter_next+0x49d/0x530 [ 61.622997][T10255] ? disk_part_iter_next+0x49d/0x530 [ 61.628291][T10255] end_report.cold+0x5a/0x5a [ 61.632878][T10255] kasan_report.cold+0x6a/0xd8 [ 61.637635][T10255] ? disk_part_iter_next+0x49d/0x530 [ 61.642997][T10255] disk_part_iter_next+0x49d/0x530 [ 61.648100][T10255] ? disk_part_iter_init+0xe0/0xe0 [ 61.653201][T10255] ? mutex_lock_io_nested+0xf70/0xf70 [ 61.658565][T10255] partition_overlaps+0x96/0x200 [ 61.663495][T10255] ? part_ro_show+0x30/0x30 [ 61.667990][T10255] bdev_add_partition+0x66/0x130 [ 61.672919][T10255] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 61.679156][T10255] blkpg_do_ioctl+0x2d0/0x340 [ 61.683856][T10255] ? blkdev_pr_preempt+0x260/0x260 [ 61.688966][T10255] blkdev_ioctl+0x577/0x6d0 [ 61.693639][T10255] ? blkdev_common_ioctl+0x17e0/0x17e0 [ 61.699092][T10255] block_ioctl+0xf9/0x140 [ 61.703499][T10255] ? blkdev_read_iter+0x180/0x180 [ 61.708518][T10255] __x64_sys_ioctl+0x193/0x200 [ 61.713278][T10255] do_syscall_64+0x2d/0x70 [ 61.717772][T10255] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 61.723744][T10255] RIP: 0033:0x445739 [ 61.727631][T10255] 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 [ 61.747227][T10255] RSP: 002b:00007ffca5947308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 61.755652][T10255] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445739 [ 61.763613][T10255] RDX: 0000000020000240 RSI: 0000000000001269 RDI: 0000000000000003 [ 61.771834][T10255] RBP: 00007ffca5947380 R08: 000000000000ece4 R09: 000000000000ece4 [ 61.779969][T10255] R10: 0023706f6f6c2f76 R11: 0000000000000246 R12: 0000000000000000 [ 61.788108][T10255] R13: 00007ffca5947370 R14: 00007ffca5947360 R15: 00007ffca594732c [ 61.799688][T10255] Kernel Offset: disabled [ 61.804279][T10255] Rebooting in 86400 seconds..