Warning: Permanently added '10.128.0.228' (ECDSA) to the list of known hosts. [ 497.659092][ T26] audit: type=1400 audit(1672235944.872:75): avc: denied { execmem } for pid=5089 comm="syz-executor251" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 497.679358][ T26] audit: type=1400 audit(1672235944.882:76): avc: denied { mounton } for pid=5090 comm="syz-executor251" path="/sys/fs/fuse/connections" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=dir permissive=1 executing program [ 497.703934][ T26] audit: type=1400 audit(1672235944.882:77): avc: denied { mount } for pid=5090 comm="syz-executor251" name="/" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 497.726749][ T26] audit: type=1400 audit(1672235944.882:78): avc: denied { mounton } for pid=5090 comm="syz-executor251" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 [ 497.749045][ T26] audit: type=1400 audit(1672235944.932:79): avc: denied { mounton } for pid=5090 comm="syz-executor251" path="/dev/binderfs" dev="devtmpfs" ino=2320 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1 [ 497.772342][ T26] audit: type=1400 audit(1672235944.942:80): avc: denied { mount } for pid=5090 comm="syz-executor251" name="/" dev="binder" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 497.796249][ T26] audit: type=1400 audit(1672235944.942:81): avc: denied { read } for pid=5092 comm="syz-executor251" name="nbd0" dev="devtmpfs" ino=664 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 497.820933][ T26] audit: type=1400 audit(1672235944.942:82): avc: denied { open } for pid=5092 comm="syz-executor251" path="/dev/nbd0" dev="devtmpfs" ino=664 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 497.821718][ T5094] nbd0: detected capacity change from 0 to 258 [ 497.845516][ T26] audit: type=1400 audit(1672235944.952:83): avc: denied { ioctl } for pid=5092 comm="syz-executor251" path="/dev/nbd0" dev="devtmpfs" ino=664 ioctlcmd=0xab07 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 497.989218][ T4377] block nbd0: Receive control failed (result -104) [ 497.991482][ T5094] block nbd0: shutting down sockets [ 498.011070][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 498.020201][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read [ 498.028176][ T5095] ldm_validate_partition_table(): Disk read failed. executing program [ 498.034933][ T5095] Dev nbd0: unable to read RDB block 0 [ 498.040388][ T5095] nbd0: unable to read partition table [ 498.046394][ T5095] nbd0: partition table beyond EOD, truncated [ 498.058168][ T5097] nbd0: detected capacity change from 0 to 258 [ 498.110973][ T5097] block nbd0: Device being setup by another task [ 498.119013][ T51] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 498.128199][ T51] Buffer I/O error on dev nbd0, logical block 0, async page read [ 498.136237][ T92] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 498.145372][ T92] Buffer I/O error on dev nbd0, logical block 0, async page read [ 498.153728][ T51] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 498.162805][ T51] Buffer I/O error on dev nbd0, logical block 0, async page read [ 498.170793][ T51] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 498.179863][ T51] Buffer I/O error on dev nbd0, logical block 0, async page read [ 498.188212][ T92] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 498.197326][ T92] Buffer I/O error on dev nbd0, logical block 0, async page read [ 498.205375][ T51] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 498.214484][ T51] Buffer I/O error on dev nbd0, logical block 0, async page read [ 498.222534][ T51] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 498.231653][ T51] Buffer I/O error on dev nbd0, logical block 0, async page read [ 498.239865][ T92] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 498.248955][ T92] Buffer I/O error on dev nbd0, logical block 0, async page read executing program [ 498.256797][ T5095] ldm_validate_partition_table(): Disk read failed. [ 498.263547][ T92] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 498.272628][ T92] Buffer I/O error on dev nbd0, logical block 0, async page read [ 498.280832][ T5095] Dev nbd0: unable to read RDB block 0 [ 498.286642][ T5095] nbd0: unable to read partition table [ 498.295727][ T5095] ldm_validate_partition_table(): Disk read failed. [ 498.302717][ T5095] Dev nbd0: unable to read RDB block 0 [ 498.308512][ T5095] nbd0: unable to read partition table [ 498.316608][ T5100] ldm_validate_partition_table(): Disk read failed. [ 498.324471][ T5100] Dev nbd0: unable to read RDB block 0 [ 498.330218][ T5100] nbd0: unable to read partition table executing program [ 498.370659][ T5100] block nbd0: Device being setup by another task [ 498.377946][ T5095] ldm_validate_partition_table(): Disk read failed. [ 498.384928][ T5095] Dev nbd0: unable to read RDB block 0 [ 498.390958][ T5095] nbd0: unable to read partition table [ 498.399866][ T5095] ldm_validate_partition_table(): Disk read failed. [ 498.406826][ T5095] Dev nbd0: unable to read RDB block 0 [ 498.412825][ T5095] nbd0: unable to read partition table [ 498.420070][ T5102] ldm_validate_partition_table(): Disk read failed. [ 498.427170][ T5102] Dev nbd0: unable to read RDB block 0 [ 498.433185][ T5102] nbd0: unable to read partition table executing program [ 498.480668][ T5102] block nbd0: Device being setup by another task [ 498.487937][ T5095] ldm_validate_partition_table(): Disk read failed. [ 498.494920][ T5095] Dev nbd0: unable to read RDB block 0 [ 498.500949][ T5095] nbd0: unable to read partition table [ 498.511379][ T5095] ldm_validate_partition_table(): Disk read failed. [ 498.518352][ T5095] Dev nbd0: unable to read RDB block 0 [ 498.524213][ T5095] nbd0: unable to read partition table [ 498.531323][ T5104] ldm_validate_partition_table(): Disk read failed. [ 498.538243][ T5104] Dev nbd0: unable to read RDB block 0 [ 498.544327][ T5104] nbd0: unable to read partition table executing program [ 498.591019][ T5104] block nbd0: Device being setup by another task [ 498.598442][ T5095] ldm_validate_partition_table(): Disk read failed. [ 498.605410][ T5095] Dev nbd0: unable to read RDB block 0 [ 498.611318][ T5095] nbd0: unable to read partition table [ 498.620352][ T5095] ldm_validate_partition_table(): Disk read failed. [ 498.627764][ T5095] Dev nbd0: unable to read RDB block 0 [ 498.633778][ T5095] nbd0: unable to read partition table [ 498.640963][ T5106] ldm_validate_partition_table(): Disk read failed. [ 498.647843][ T5106] Dev nbd0: unable to read RDB block 0 [ 498.653806][ T5106] nbd0: unable to read partition table executing program [ 498.700718][ T5106] block nbd0: Device being setup by another task [ 498.707997][ T5095] ldm_validate_partition_table(): Disk read failed. [ 498.714991][ T5095] Dev nbd0: unable to read RDB block 0 [ 498.720946][ T5095] nbd0: unable to read partition table [ 498.732803][ T5108] ldm_validate_partition_table(): Disk read failed. [ 498.739727][ T5108] Dev nbd0: unable to read RDB block 0 [ 498.745711][ T5108] nbd0: unable to read partition table executing program [ 498.790659][ T5108] block nbd0: Device being setup by another task [ 498.797253][ T5095] ldm_validate_partition_table(): Disk read failed. [ 498.804210][ T5095] Dev nbd0: unable to read RDB block 0 [ 498.810016][ T5095] nbd0: unable to read partition table [ 498.891699][ T5111] nbd0: detected capacity change from 0 to 258 executing program [ 499.042412][ T4377] block nbd0: Receive control failed (result -104) [ 499.049795][ T5111] block nbd0: shutting down sockets [ 499.060860][ T5095] ldm_validate_partition_table(): Disk read failed. [ 499.067574][ T5095] Dev nbd0: unable to read RDB block 0 [ 499.073344][ T5095] nbd0: unable to read partition table [ 499.079016][ T5095] nbd0: partition table beyond EOD, truncated [ 499.090711][ T5113] nbd0: detected capacity change from 0 to 258 executing program [ 499.140714][ T5113] block nbd0: Device being setup by another task [ 499.148060][ T5095] ldm_validate_partition_table(): Disk read failed. [ 499.155270][ T5095] Dev nbd0: unable to read RDB block 0 [ 499.161133][ T5095] nbd0: unable to read partition table [ 499.169217][ T5095] ldm_validate_partition_table(): Disk read failed. [ 499.176332][ T5095] Dev nbd0: unable to read RDB block 0 [ 499.182299][ T5095] nbd0: unable to read partition table [ 499.189233][ T5115] ldm_validate_partition_table(): Disk read failed. [ 499.196497][ T5115] Dev nbd0: unable to read RDB block 0 [ 499.202586][ T5115] nbd0: unable to read partition table executing program [ 499.240712][ T5115] block nbd0: Device being setup by another task [ 499.247831][ T5095] ldm_validate_partition_table(): Disk read failed. [ 499.254998][ T5095] Dev nbd0: unable to read RDB block 0 [ 499.261234][ T5095] nbd0: unable to read partition table [ 499.270437][ T5095] ldm_validate_partition_table(): Disk read failed. [ 499.277412][ T5095] Dev nbd0: unable to read RDB block 0 [ 499.283373][ T5095] nbd0: unable to read partition table [ 499.292726][ T5117] ldm_validate_partition_table(): Disk read failed. [ 499.299630][ T5117] Dev nbd0: unable to read RDB block 0 [ 499.305788][ T5117] nbd0: unable to read partition table executing program [ 499.350673][ T5117] block nbd0: Device being setup by another task [ 499.357777][ T5095] ldm_validate_partition_table(): Disk read failed. [ 499.364706][ T5095] Dev nbd0: unable to read RDB block 0 [ 499.370517][ T5095] nbd0: unable to read partition table [ 499.378857][ T5095] ldm_validate_partition_table(): Disk read failed. [ 499.385774][ T5095] Dev nbd0: unable to read RDB block 0 [ 499.391751][ T5095] nbd0: unable to read partition table [ 499.398969][ T5119] ldm_validate_partition_table(): Disk read failed. [ 499.406100][ T5119] Dev nbd0: unable to read RDB block 0 [ 499.412042][ T5119] nbd0: unable to read partition table executing program [ 499.460715][ T5119] block nbd0: Device being setup by another task [ 499.467843][ T5095] ldm_validate_partition_table(): Disk read failed. [ 499.475338][ T5095] Dev nbd0: unable to read RDB block 0 [ 499.481520][ T5095] nbd0: unable to read partition table [ 499.490965][ T5095] ldm_validate_partition_table(): Disk read failed. [ 499.497902][ T5095] Dev nbd0: unable to read RDB block 0 [ 499.503955][ T5095] nbd0: unable to read partition table [ 499.512778][ T5121] ldm_validate_partition_table(): Disk read failed. [ 499.519706][ T5121] Dev nbd0: unable to read RDB block 0 [ 499.525899][ T5121] nbd0: unable to read partition table executing program [ 499.610682][ T5121] block nbd0: Device being setup by another task [ 499.618034][ T5095] ldm_validate_partition_table(): Disk read failed. [ 499.624978][ T5095] Dev nbd0: unable to read RDB block 0 [ 499.631019][ T5095] nbd0: unable to read partition table [ 499.641895][ T5095] ldm_validate_partition_table(): Disk read failed. [ 499.648843][ T5095] Dev nbd0: unable to read RDB block 0 [ 499.654911][ T5095] nbd0: unable to read partition table [ 499.662141][ T5124] ldm_validate_partition_table(): Disk read failed. [ 499.669066][ T5124] Dev nbd0: unable to read RDB block 0 [ 499.675284][ T5124] nbd0: unable to read partition table executing program [ 499.720732][ T5124] block nbd0: Device being setup by another task [ 499.727869][ T5095] ldm_validate_partition_table(): Disk read failed. [ 499.735141][ T5095] Dev nbd0: unable to read RDB block 0 [ 499.741084][ T5095] nbd0: unable to read partition table [ 499.752228][ T5126] ldm_validate_partition_table(): Disk read failed. [ 499.759124][ T5126] Dev nbd0: unable to read RDB block 0 [ 499.765165][ T5126] nbd0: unable to read partition table executing program [ 499.820655][ T5126] block nbd0: Device being setup by another task [ 499.827618][ T5095] ldm_validate_partition_table(): Disk read failed. [ 499.835181][ T5095] Dev nbd0: unable to read RDB block 0 [ 499.841046][ T5095] nbd0: unable to read partition table [ 499.901386][ T5129] nbd0: detected capacity change from 0 to 258 [ 500.060653][ T4377] block nbd0: Receive control failed (result -104) [ 529.971316][ T51] block nbd0: Possible stuck request ffff88801f6a5200: control (read@0,4096B). Runtime 30 seconds [ 559.986175][ T4422] udevd[4422]: worker [5095] /devices/virtual/block/nbd0 is taking a long time [ 560.050817][ T51] block nbd0: Possible stuck request ffff88801f6a5200: control (read@0,4096B). Runtime 60 seconds [ 590.130859][ T51] block nbd0: Possible stuck request ffff88801f6a5200: control (read@0,4096B). Runtime 90 seconds [ 620.210801][ T51] block nbd0: Possible stuck request ffff88801f6a5200: control (read@0,4096B). Runtime 120 seconds [ 650.290846][ T51] block nbd0: Possible stuck request ffff88801f6a5200: control (read@0,4096B). Runtime 150 seconds executing program [ 680.149467][ T4422] udevd[4422]: worker [5095] /devices/virtual/block/nbd0 timeout; kill it [ 680.158872][ T4422] udevd[4422]: seq 7530 '/devices/virtual/block/nbd0' killed [ 680.158897][ T5095] ldm_validate_partition_table(): Disk read failed. [ 680.172985][ T5095] Dev nbd0: unable to read RDB block 0 [ 680.178448][ T5095] nbd0: unable to read partition table [ 680.184396][ T5095] nbd0: partition table beyond EOD, truncated [ 680.370739][ T51] block nbd0: Possible stuck request ffff88801f6a5200: control (read@0,4096B). Runtime 180 seconds [ 710.450866][ T51] block nbd0: Possible stuck request ffff88801f6a5200: control (read@0,4096B). Runtime 210 seconds [ 740.530829][ T51] block nbd0: Possible stuck request ffff88801f6a5200: control (read@0,4096B). Runtime 240 seconds [ 770.610928][ T51] block nbd0: Possible stuck request ffff88801f6a5200: control (read@0,4096B). Runtime 270 seconds [ 800.690846][ T51] block nbd0: Possible stuck request ffff88801f6a5200: control (read@0,4096B). Runtime 300 seconds [ 830.770790][ T51] block nbd0: Possible stuck request ffff88801f6a5200: control (read@0,4096B). Runtime 330 seconds [ 859.570798][ T27] INFO: task udevd:5095 blocked for more than 143 seconds. [ 859.578128][ T27] Not tainted 6.2.0-rc1-syzkaller #0 [ 859.584228][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 859.593022][ T27] task:udevd state:D stack:25608 pid:5095 ppid:4422 flags:0x00004006 [ 859.602296][ T27] Call Trace: [ 859.606472][ T27] [ 859.609415][ T27] __schedule+0xb8a/0x5450 [ 859.613959][ T27] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 859.619969][ T27] ? lock_chain_count+0x20/0x20 [ 859.624869][ T27] ? io_schedule_timeout+0x150/0x150 [ 859.630172][ T27] ? mark_held_locks+0x9f/0xe0 [ 859.635007][ T27] schedule+0xde/0x1b0 [ 859.639087][ T27] io_schedule+0xbe/0x130 [ 859.643456][ T27] folio_wait_bit_common+0x394/0x9b0 [ 859.648816][ T27] ? filemap_range_has_writeback+0x650/0x650 [ 859.654860][ T27] ? __filemap_get_folio+0x254/0xd80 [ 859.660212][ T27] ? folio_unlock+0xd0/0xd0 [ 859.664755][ T27] __filemap_get_folio+0xb71/0xd80 [ 859.669880][ T27] ? filemap_add_folio+0x1e0/0x1e0 [ 859.675060][ T27] ? filemap_get_folios+0x700/0x700 [ 859.680270][ T27] truncate_inode_pages_range+0x350/0xec0 [ 859.686027][ T27] ? truncate_inode_partial_folio+0xb90/0xb90 [ 859.692169][ T27] ? _find_next_bit+0x11b/0x140 [ 859.697089][ T27] ? smp_call_function_many_cond+0x47f/0x10a0 [ 859.703232][ T27] ? __brelse+0xa0/0xa0 [ 859.708475][ T27] ? smp_call_on_cpu+0x250/0x250 [ 859.713492][ T27] ? mutex_lock_io_nested+0x11a0/0x11a0 [ 859.719059][ T27] ? __brelse+0xa0/0xa0 [ 859.723285][ T27] blkdev_flush_mapping+0x140/0x2f0 [ 859.728553][ T27] blkdev_put_whole+0xd1/0xf0 [ 859.733353][ T27] blkdev_put+0x224/0x770 [ 859.737699][ T27] blkdev_close+0x68/0x80 [ 859.742078][ T27] __fput+0x27c/0xa90 [ 859.746149][ T27] ? blkdev_fsync+0xa0/0xa0 [ 859.750706][ T27] task_work_run+0x16f/0x270 [ 859.755314][ T27] ? task_work_cancel+0x30/0x30 [ 859.760161][ T27] ? do_raw_spin_unlock+0x175/0x230 [ 859.765399][ T27] do_exit+0xaa8/0x2950 [ 859.769575][ T27] ? find_held_lock+0x2d/0x110 [ 859.774407][ T27] ? get_signal+0x8a0/0x2450 [ 859.779006][ T27] ? mm_update_next_owner+0x7b0/0x7b0 [ 859.784421][ T27] do_group_exit+0xd4/0x2a0 [ 859.788950][ T27] get_signal+0x21c3/0x2450 [ 859.793511][ T27] ? exit_signals+0x8b0/0x8b0 [ 859.798196][ T27] ? do_sys_openat2+0xa1/0x4c0 [ 859.803043][ T27] arch_do_signal_or_restart+0x79/0x5c0 [ 859.808660][ T27] ? get_sigframe_size+0x10/0x10 [ 859.813660][ T27] ? __ia32_sys_open+0x1c0/0x1c0 [ 859.818613][ T27] exit_to_user_mode_prepare+0x15f/0x250 [ 859.824456][ T27] syscall_exit_to_user_mode+0x1d/0x50 [ 859.829945][ T27] do_syscall_64+0x46/0xb0 [ 859.834462][ T27] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 859.840450][ T27] RIP: 0033:0x7f035e325697 [ 859.844926][ T27] RSP: 002b:00007ffdc28f4150 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 859.853424][ T27] RAX: 0000000000000008 RBX: 0000558c2dfbc8c0 RCX: 00007f035e325697 [ 859.861439][ T27] RDX: 00000000000a0800 RSI: 0000558c2df06550 RDI: 00000000ffffff9c [ 859.869427][ T27] RBP: 0000558c2df06550 R08: 0000000000000001 R09: 00007ffdc29e5080 [ 859.877467][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800 [ 859.885467][ T27] R13: 0000558c2df151c0 R14: 0000000000000001 R15: 0000558c2dedc2c0 [ 859.893490][ T27] [ 859.896529][ T27] INFO: task syz-executor251:5137 blocked for more than 143 seconds. [ 859.904639][ T27] Not tainted 6.2.0-rc1-syzkaller #0 [ 859.910669][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 859.919334][ T27] task:syz-executor251 state:D stack:28488 pid:5137 ppid:5090 flags:0x00000004 [ 859.928568][ T27] Call Trace: [ 859.931886][ T27] [ 859.934810][ T27] __schedule+0xb8a/0x5450 [ 859.939222][ T27] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 859.945257][ T27] ? static_obj+0xb0/0xc0 [ 859.949610][ T27] ? io_schedule_timeout+0x150/0x150 [ 859.954952][ T27] ? __mutex_lock+0xa43/0x1360 [ 859.959755][ T27] schedule+0xde/0x1b0 [ 859.963897][ T27] schedule_preempt_disabled+0x13/0x20 [ 859.969384][ T27] __mutex_lock+0xa48/0x1360 [ 859.974069][ T27] ? blkdev_get_by_dev.part.0+0x9b/0xb80 [ 859.979726][ T27] ? mutex_lock_io_nested+0x11a0/0x11a0 [ 859.985320][ T27] ? _atomic_dec_and_lock+0x96/0x100 [ 859.990756][ T27] ? disk_block_events+0x21/0x140 [ 859.995811][ T27] blkdev_get_by_dev.part.0+0x9b/0xb80 [ 860.001304][ T27] ? devcgroup_check_permission+0x1aa/0x440 [ 860.007276][ T27] blkdev_get_by_dev+0x6f/0x90 [ 860.012104][ T27] blkdev_open+0x140/0x2c0 [ 860.016621][ T27] do_dentry_open+0x6cc/0x13f0 [ 860.021533][ T27] ? blkdev_close+0x80/0x80 [ 860.026049][ T27] path_openat+0x1bbc/0x2a50 [ 860.030740][ T27] ? path_lookupat+0x840/0x840 [ 860.035520][ T27] do_filp_open+0x1ba/0x410 [ 860.040014][ T27] ? may_open_dev+0xf0/0xf0 [ 860.044549][ T27] ? find_held_lock+0x2d/0x110 [ 860.049333][ T27] ? do_raw_spin_lock+0x124/0x2b0 [ 860.054420][ T27] ? rwlock_bug.part.0+0x90/0x90 [ 860.059380][ T27] ? _raw_spin_unlock+0x28/0x40 [ 860.064269][ T27] ? alloc_fd+0x2d8/0x6d0 [ 860.068675][ T27] do_sys_openat2+0x16d/0x4c0 [ 860.073421][ T27] ? build_open_flags+0x6f0/0x6f0 [ 860.078471][ T27] ? up_write+0x520/0x520 [ 860.082860][ T27] __x64_sys_openat+0x143/0x1f0 [ 860.087867][ T27] ? __ia32_sys_open+0x1c0/0x1c0 [ 860.093038][ T27] ? syscall_enter_from_user_mode+0x26/0xb0 [ 860.098932][ T27] do_syscall_64+0x39/0xb0 [ 860.103570][ T27] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 860.109462][ T27] RIP: 0033:0x7fd95093dc24 [ 860.114125][ T27] RSP: 002b:00007fd95092de70 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 [ 860.122689][ T27] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd95093dc24 [ 860.130827][ T27] RDX: 0000000000000000 RSI: 00007fd95092def0 RDI: 00000000ffffff9c [ 860.138824][ T27] RBP: 00007fd95092def0 R08: 0000000000000000 R09: 00007fd95092e700 [ 860.147109][ T27] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 860.155296][ T27] R13: 00007fd9509d21a4 R14: 64626e2f7665642f R15: 0000000000022000 [ 860.163520][ T27] [ 860.166586][ T27] [ 860.166586][ T27] Showing all locks held in the system: [ 860.174612][ T27] 1 lock held by rcu_tasks_kthre/11: [ 860.179888][ T27] #0: ffffffff8c78dcb0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 [ 860.190693][ T27] 1 lock held by rcu_tasks_trace/12: [ 860.196002][ T27] #0: ffffffff8c78d9b0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 [ 860.207305][ T27] 1 lock held by khungtaskd/27: [ 860.212253][ T27] #0: ffffffff8c78e800 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x264 [ 860.222515][ T27] 2 locks held by getty/4740: [ 860.227181][ T27] #0: ffff88802993d098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 [ 860.237059][ T27] #1: ffffc900020182f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 [ 860.247226][ T27] 1 lock held by udevd/5095: [ 860.251873][ T27] #0: ffff888146b4a4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xc0/0x770 [ 860.261279][ T27] 1 lock held by syz-executor251/5137: [ 860.266745][ T27] #0: ffff888146b4a4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb80 [ 860.277350][ T27] [ 860.279681][ T27] ============================================= [ 860.279681][ T27] [ 860.288137][ T27] NMI backtrace for cpu 1 [ 860.292467][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.2.0-rc1-syzkaller #0 [ 860.300521][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 860.310562][ T27] Call Trace: [ 860.313831][ T27] [ 860.316756][ T27] dump_stack_lvl+0xd1/0x138 [ 860.321342][ T27] nmi_cpu_backtrace.cold+0x24/0x18a [ 860.326623][ T27] nmi_trigger_cpumask_backtrace+0x333/0x3c0 [ 860.332594][ T27] ? lapic_can_unplug_cpu+0x80/0x80 [ 860.337781][ T27] watchdog+0xc75/0xfc0 [ 860.341979][ T27] ? proc_dohung_task_timeout_secs+0x80/0x80 [ 860.347951][ T27] kthread+0x2e8/0x3a0 [ 860.352008][ T27] ? kthread_complete_and_exit+0x40/0x40 [ 860.357649][ T27] ret_from_fork+0x1f/0x30 [ 860.362060][ T27] [ 860.365194][ T27] Sending NMI from CPU 1 to CPUs 0: [ 860.370425][ C0] NMI backtrace for cpu 0 [ 860.370434][ C0] CPU: 0 PID: 74 Comm: kworker/u4:4 Not tainted 6.2.0-rc1-syzkaller #0 [ 860.370452][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 860.370463][ C0] Workqueue: events_unbound toggle_allocation_gate [ 860.370529][ C0] RIP: 0010:kasan_check_range+0x136/0x190 [ 860.370577][ C0] Code: 2c 48 85 d2 75 0b 48 89 da 48 29 c2 e9 55 ff ff ff 49 39 d2 75 17 49 0f be 02 41 83 e1 07 49 39 c1 7d 0a 5b b8 01 00 00 00 5d <41> 5c c3 44 89 c2 e8 7f ee ff ff 5b 83 f0 01 5d 41 5c c3 b8 01 00 [ 860.370594][ C0] RSP: 0018:ffffc9000203f9d0 EFLAGS: 00000046 [ 860.370608][ C0] RAX: 0000000000000001 RBX: ffffffff8e724a4c RCX: ffffffff812e9bff [ 860.370619][ C0] RDX: fffffbfff1fe7cd4 RSI: 0000000000000001 RDI: ffffffff8ff3e69a [ 860.370630][ C0] RBP: ffffffff8ff3e69a R08: 0000000000000000 R09: ffffffff8ff3e69a [ 860.370641][ C0] R10: fffffbfff1fe7cd3 R11: 0000000000000000 R12: 0000000000000001 [ 860.370652][ C0] R13: 00002aaaaaaabac4 R14: 0000000000000ac5 R15: ffffffff8c8d75a0 [ 860.370663][ C0] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 860.370680][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 860.370692][ C0] CR2: 000055555c5ba450 CR3: 0000000012464000 CR4: 00000000003506f0 [ 860.370703][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 860.370713][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 860.370724][ C0] Call Trace: [ 860.370728][ C0] [ 860.370733][ C0] memcpy+0x24/0x60 [ 860.370760][ C0] ? kmem_cache_alloc+0x124/0x460 [ 860.370780][ C0] __text_poke+0x33f/0x8e0 [ 860.370800][ C0] ? setup_data_read+0x230/0x230 [ 860.370821][ C0] ? text_poke_memset+0x60/0x60 [ 860.370843][ C0] text_poke_bp_batch+0x445/0x6b0 [ 860.370863][ C0] ? kmem_cache_alloc+0x124/0x460 [ 860.370886][ C0] ? do_sync_core+0x30/0x30 [ 860.370906][ C0] ? __jump_label_update+0x296/0x410 [ 860.370930][ C0] text_poke_finish+0x1a/0x30 [ 860.370951][ C0] arch_jump_label_transform_apply+0x17/0x30 [ 860.370969][ C0] jump_label_update+0x32f/0x410 [ 860.370993][ C0] static_key_enable_cpuslocked+0x1b5/0x270 [ 860.371018][ C0] static_key_enable+0x1a/0x20 [ 860.371040][ C0] toggle_allocation_gate+0xf8/0x230 [ 860.371057][ C0] ? wake_up_kfence_timer+0x30/0x30 [ 860.371076][ C0] process_one_work+0x9bf/0x1710 [ 860.371097][ C0] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 860.371118][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 860.371135][ C0] ? _raw_spin_lock_irq+0x45/0x50 [ 860.371160][ C0] worker_thread+0x669/0x1090 [ 860.371180][ C0] ? __kthread_parkme+0x163/0x220 [ 860.371208][ C0] ? process_one_work+0x1710/0x1710 [ 860.371228][ C0] kthread+0x2e8/0x3a0 [ 860.371243][ C0] ? kthread_complete_and_exit+0x40/0x40 [ 860.371260][ C0] ret_from_fork+0x1f/0x30 [ 860.371287][ C0] [ 860.371426][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 860.371436][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.2.0-rc1-syzkaller #0 [ 860.371457][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 860.371468][ T27] Call Trace: [ 860.371474][ T27] [ 860.371480][ T27] dump_stack_lvl+0xd1/0x138 [ 860.371511][ T27] panic+0x2cc/0x626 [ 860.371540][ T27] ? panic_print_sys_info.part.0+0x110/0x110 [ 860.371570][ T27] ? preempt_schedule_thunk+0x1a/0x20 [ 860.371601][ T27] ? watchdog.cold+0x130/0x158 [ 860.371637][ T27] watchdog.cold+0x141/0x158 [ 860.371662][ T27] ? proc_dohung_task_timeout_secs+0x80/0x80 [ 860.371694][ T27] kthread+0x2e8/0x3a0 [ 860.371712][ T27] ? kthread_complete_and_exit+0x40/0x40 [ 860.371732][ T27] ret_from_fork+0x1f/0x30 [ 860.371760][ T27] [ 860.375832][ T27] Kernel Offset: disabled [ 860.735980][ T27] Rebooting in 86400 seconds..