./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3368971856 <...> Warning: Permanently added '10.128.1.89' (ED25519) to the list of known hosts. execve("./syz-executor3368971856", ["./syz-executor3368971856"], 0x7fff476c14d0 /* 10 vars */) = 0 brk(NULL) = 0x5555556dd000 brk(0x5555556ddd00) = 0x5555556ddd00 arch_prctl(ARCH_SET_FS, 0x5555556dd380) = 0 set_tid_address(0x5555556dd650) = 5028 set_robust_list(0x5555556dd660, 24) = 0 rseq(0x5555556ddca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3368971856", 4096) = 28 getrandom("\xa6\xfa\xe4\x15\xcc\x95\x99\x9e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555556ddd00 brk(0x5555556fed00) = 0x5555556fed00 brk(0x5555556ff000) = 0x5555556ff000 mprotect(0x7f088fc5f000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5029 attached , child_tidptr=0x5555556dd650) = 5029 [pid 5029] set_robust_list(0x5555556dd660, 24) = 0 [pid 5029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5029] setpgid(0, 0) = 0 [pid 5029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] write(3, "1000", 4) = 4 [pid 5029] close(3) = 0 [pid 5029] memfd_create("syzkaller", 0) = 3 [pid 5029] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f088779b000 [ 53.399998][ T5029] syz-executor336[5029]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5029] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5029] munmap(0x7f088779b000, 16777216) = 0 [pid 5029] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5029] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5029] close(3) = 0 [pid 5029] mkdir("./bus", 0777) = 0 [ 53.557755][ T5029] loop0: detected capacity change from 0 to 32768 [ 53.567698][ T5029] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 53.575965][ T5029] gfs2: fsid=syz:syz: Now mounting FS (format 1802)... [ 53.585392][ T5029] gfs2: fsid=syz:syz.0: journal 0 mapped with 14 extents in 0ms [ 53.594153][ T27] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 53.601192][ T27] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 53.629842][ T27] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 28ms [ 53.637543][ T27] gfs2: fsid=syz:syz.0: jid=0: Done [ 53.643344][ T5029] gfs2: fsid=syz:syz.0: first mount done, others may mount [pid 5029] mount("/dev/loop0", "./bus", "gfs2", MS_SYNCHRONOUS, "") = 0 [pid 5029] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5029] chdir("./bus") = 0 [pid 5029] ioctl(4, LOOP_CLR_FD) = 0 [pid 5029] close(4) = 0 [pid 5029] creat("./bus", 000) = 4 [pid 5029] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 5 [pid 5029] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.551105][ T29] task:kworker/u4:5 state:D stack:21344 pid:138 ppid:2 flags:0x00004000 [ 286.560369][ T29] Workqueue: writeback wb_workfn (flush-7:0) [ 286.566496][ T29] Call Trace: [ 286.569800][ T29] [ 286.572731][ T29] __schedule+0x1873/0x48f0 [ 286.577331][ T29] ? ktime_get+0x83/0x270 [ 286.581688][ T29] ? blk_mq_start_stopped_hw_queues+0x210/0x210 [ 286.588036][ T29] ? rcu_is_watching+0x15/0xb0 [ 286.592809][ T29] ? release_firmware_map_entry+0x190/0x190 [ 286.598728][ T29] ? __blk_flush_plug+0x46b/0x4c0 [ 286.603803][ T29] ? kthread_data+0x52/0xc0 [ 286.608378][ T29] ? wq_worker_sleeping+0x66/0x240 [ 286.613491][ T29] ? _raw_spin_lock_irq+0xdf/0x120 [ 286.618630][ T29] schedule+0xc3/0x180 [ 286.622707][ T29] io_schedule+0x8c/0x100 [ 286.627126][ T29] folio_wait_bit_common+0x871/0x12a0 [ 286.632646][ T29] ? folio_wait_bit+0x30/0x30 [ 286.637365][ T29] ? _compound_head+0x120/0x120 [ 286.642203][ T29] ? deref_stack_reg+0x1c7/0x250 [ 286.647150][ T29] write_cache_pages+0x517/0x13f0 [ 286.652237][ T29] ? iomap_writepages+0x240/0x240 [ 286.657365][ T29] ? tag_pages_for_writeback+0x6a0/0x6a0 [ 286.663001][ T29] iomap_writepages+0x68/0x240 [ 286.667782][ T29] gfs2_writepages+0x169/0x1f0 [ 286.672580][ T29] ? gfs2_write_cache_jdata+0x1800/0x1800 [ 286.678342][ T29] ? do_raw_spin_unlock+0x13b/0x8b0 [ 286.683652][ T29] ? blk_start_plug+0x52/0x1b0 [ 286.688455][ T29] ? gfs2_write_cache_jdata+0x1800/0x1800 [ 286.694167][ T29] do_writepages+0x3a6/0x670 [ 286.698794][ T29] ? folio_clear_dirty_for_io+0xcb0/0xcb0 [ 286.704528][ T29] ? rcu_is_watching+0x15/0xb0 [ 286.709327][ T29] ? lock_release+0xbf/0x9d0 [ 286.713922][ T29] ? read_lock_is_recursive+0x20/0x20 [ 286.719318][ T29] ? __lock_acquire+0x7f70/0x7f70 [ 286.724353][ T29] ? do_raw_spin_lock+0x14d/0x3a0 [ 286.729406][ T29] ? do_raw_spin_unlock+0x13b/0x8b0 [ 286.734602][ T29] __writeback_single_inode+0x155/0xfa0 [ 286.740235][ T29] writeback_sb_inodes+0x8e3/0x11d0 [ 286.745445][ T29] ? read_lock_is_recursive+0x20/0x20 [ 286.750851][ T29] ? queue_io+0x570/0x570 [ 286.755444][ T29] ? lock_release+0xbf/0x9d0 [ 286.760068][ T29] ? _raw_spin_unlock+0x28/0x40 [ 286.764997][ T29] ? move_expired_inodes+0x7c8/0x810 [ 286.770341][ T29] ? do_raw_spin_lock+0x14d/0x3a0 [ 286.775461][ T29] __writeback_inodes_wb+0x11b/0x260 [ 286.780816][ T29] wb_writeback+0x461/0xc60 [ 286.785334][ T29] ? rcu_lock_release+0x30/0x30 [ 286.790228][ T29] ? rcu_is_watching+0x15/0xb0 [ 286.795004][ T29] wb_workfn+0xc6f/0xff0 [ 286.799301][ T29] ? inode_wait_for_writeback+0x290/0x290 [ 286.805029][ T29] ? rcu_is_watching+0x15/0xb0 [ 286.809829][ T29] ? _raw_spin_lock_irqsave+0xe1/0x120 [ 286.815292][ T29] ? print_irqtrace_events+0x220/0x220 [ 286.820869][ T29] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 286.826772][ T29] ? rcu_is_watching+0x15/0xb0 [ 286.831591][ T29] process_one_work+0x781/0x1130 [ 286.836544][ T29] ? worker_detach_from_pool+0x290/0x290 [ 286.842218][ T29] ? assign_work+0x364/0x3d0 [ 286.846818][ T29] worker_thread+0xabf/0x1060 [ 286.851524][ T29] ? _raw_spin_unlock+0x40/0x40 [ 286.856379][ T29] ? __kthread_parkme+0x164/0x1c0 [ 286.861435][ T29] kthread+0x2b8/0x350 [ 286.865504][ T29] ? pr_cont_work+0x5e0/0x5e0 [ 286.870237][ T29] ? kthread_blkcg+0xd0/0xd0 [ 286.874831][ T29] ret_from_fork+0x48/0x80 [ 286.879278][ T29] ? kthread_blkcg+0xd0/0xd0 [ 286.883875][ T29] ret_from_fork_asm+0x11/0x20 [ 286.888726][ T29] [ 286.891903][ T29] INFO: task syz-executor336:5029 blocked for more than 143 seconds. [ 286.900026][ T29] Not tainted 6.5.0-syzkaller-11075-g92901222f83d #0 [ 286.907343][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.915997][ T29] task:syz-executor336 state:D stack:23408 pid:5029 ppid:5028 flags:0x00004006 [ 286.925221][ T29] Call Trace: [ 286.928554][ T29] [ 286.931474][ T29] __schedule+0x1873/0x48f0 [ 286.935970][ T29] ? rcu_is_watching+0x15/0xb0 [ 286.940754][ T29] ? release_firmware_map_entry+0x190/0x190 [ 286.946662][ T29] ? lock_release+0xbf/0x9d0 [ 286.951285][ T29] ? __rwlock_init+0x150/0x150 [ 286.956040][ T29] ? print_irqtrace_events+0x220/0x220 [ 286.961515][ T29] ? _raw_spin_lock_irq+0xdf/0x120 [ 286.966653][ T29] schedule+0xc3/0x180 [ 286.970747][ T29] io_schedule+0x8c/0x100 [ 286.975078][ T29] folio_wait_bit_common+0x871/0x12a0 [ 286.980477][ T29] ? folio_wait_bit+0x30/0x30 [ 286.985150][ T29] ? _compound_head+0x120/0x120 [ 286.990018][ T29] ? rcu_is_watching+0x15/0xb0 [ 286.994793][ T29] write_cache_pages+0x517/0x13f0 [ 286.999913][ T29] ? page_cache_prev_miss+0x500/0x500 [ 287.005296][ T29] ? iomap_writepages+0x240/0x240 [ 287.010455][ T29] ? tag_pages_for_writeback+0x6a0/0x6a0 [ 287.016105][ T29] iomap_writepages+0x68/0x240 [ 287.020937][ T29] gfs2_writepages+0x169/0x1f0 [ 287.025704][ T29] ? gfs2_write_cache_jdata+0x1800/0x1800 [ 287.031448][ T29] ? do_raw_spin_lock+0x14d/0x3a0 [ 287.036473][ T29] ? do_raw_spin_unlock+0x13b/0x8b0 [ 287.041709][ T29] ? gfs2_write_cache_jdata+0x1800/0x1800 [ 287.047447][ T29] do_writepages+0x3a6/0x670 [ 287.052028][ T29] ? folio_clear_dirty_for_io+0xcb0/0xcb0 [ 287.057778][ T29] ? lock_release+0xbf/0x9d0 [ 287.062379][ T29] ? read_lock_is_recursive+0x20/0x20 [ 287.067780][ T29] ? __up_read+0x2bd/0x690 [ 287.072184][ T29] ? do_raw_spin_lock+0x14d/0x3a0 [ 287.077228][ T29] ? __lock_acquire+0x7f70/0x7f70 [ 287.082281][ T29] ? do_raw_spin_unlock+0x13b/0x8b0 [ 287.087497][ T29] ? wbc_attach_and_unlock_inode+0xbe/0x560 [ 287.093405][ T29] filemap_fdatawrite_wbc+0x125/0x180 [ 287.098801][ T29] filemap_fdatawrite+0x143/0x1b0 [ 287.103827][ T29] ? read_lock_is_recursive+0x20/0x20 [ 287.109218][ T29] ? __filemap_fdatawrite_range+0x1e0/0x1e0 [ 287.115110][ T29] ? do_raw_spin_unlock+0x13b/0x8b0 [ 287.120345][ T29] ? rcu_is_watching+0x15/0xb0 [ 287.125140][ T29] gfs2_log_flush+0xa42/0x25f0 [ 287.129997][ T29] ? gfs2_ail_empty_tr+0x310/0x310 [ 287.135140][ T29] ? up_read+0x20/0x20 [ 287.139271][ T29] gfs2_trans_end+0x39f/0x560 [ 287.143999][ T29] gfs2_page_mkwrite+0x1262/0x14f0 [ 287.149136][ T29] ? do_page_mkwrite+0x197/0x470 [ 287.154126][ T29] ? gfs2_fault+0x1e0/0x1e0 [ 287.158645][ T29] ? gfs2_fault+0x196/0x1e0 [ 287.163160][ T29] ? generic_write_sync+0x200/0x200 [ 287.168376][ T29] ? pte_alloc_one+0x443/0x5c0 [ 287.173145][ T29] ? do_page_mkwrite+0x197/0x470 [ 287.178110][ T29] ? free_unref_page_commit+0x20c/0x540 [ 287.183737][ T29] do_page_mkwrite+0x197/0x470 [ 287.188532][ T29] handle_mm_fault+0x22b2/0x6200 [ 287.193461][ T29] ? numa_migrate_prep+0x380/0x380 [ 287.198763][ T29] ? mt_find+0x5e3/0x780 [ 287.203044][ T29] ? read_lock_is_recursive+0x20/0x20 [ 287.208527][ T29] ? mtree_destroy+0x30/0x30 [ 287.213136][ T29] ? lock_mm_and_find_vma+0x9c/0x2d0 [ 287.218457][ T29] exc_page_fault+0x2ac/0x860 [ 287.223165][ T29] asm_exc_page_fault+0x26/0x30 [ 287.228136][ T29] RIP: 0033:0x7f088fba48e7 [ 287.232548][ T29] RSP: 002b:00007fff09b9e550 EFLAGS: 00010286 [ 287.238637][ T29] RAX: 0030656c69662f2e RBX: 0000000000000000 RCX: 0000000020000180 [ 287.246610][ T29] RDX: 00000000c018937d RSI: 00000000ffffffff RDI: 0000000000000010 [ 287.254698][ T29] RBP: 00007f088fc5f5f0 R08: 0000000000000000 R09: 0000000000000000 [ 287.262691][ T29] R10: 0000000000000005 R11: 0000000000000246 R12: 00007fff09b9e580 [ 287.270697][ T29] R13: 00007fff09b9e7a8 R14: 431bde82d7b634db R15: 00007f088fc2203b [ 287.278696][ T29] [ 287.281720][ T29] INFO: task gfs2_logd:5032 blocked for more than 144 seconds. [ 287.289299][ T29] Not tainted 6.5.0-syzkaller-11075-g92901222f83d #0 [ 287.296490][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.305286][ T29] task:gfs2_logd state:D stack:28672 pid:5032 ppid:2 flags:0x00004000 [ 287.314584][ T29] Call Trace: [ 287.317888][ T29] [ 287.320815][ T29] __schedule+0x1873/0x48f0 [ 287.325306][ T29] ? rcu_is_watching+0x15/0xb0 [ 287.330086][ T29] ? lock_release+0xbf/0x9d0 [ 287.334679][ T29] ? release_firmware_map_entry+0x190/0x190 [ 287.340597][ T29] ? lock_release+0xbf/0x9d0 [ 287.345193][ T29] ? print_irqtrace_events+0x220/0x220 [ 287.350676][ T29] ? _raw_spin_lock_irq+0xdf/0x120 [ 287.355789][ T29] schedule+0xc3/0x180 [ 287.359877][ T29] schedule_preempt_disabled+0x13/0x20 [ 287.365367][ T29] rwsem_down_write_slowpath+0xedd/0x13a0 [ 287.371132][ T29] ? rwsem_down_read_slowpath+0x950/0x950 [ 287.376939][ T29] ? rcu_is_watching+0x15/0xb0 [ 287.381727][ T29] ? rcu_is_watching+0x15/0xb0 [ 287.386491][ T29] ? read_lock_is_recursive+0x20/0x20 [ 287.391887][ T29] __down_write_common+0x1aa/0x200 [ 287.397001][ T29] ? clear_nonspinnable+0x60/0x60 [ 287.402051][ T29] gfs2_log_flush+0x105/0x25f0 [ 287.406821][ T29] ? do_raw_spin_unlock+0x13b/0x8b0 [ 287.412041][ T29] ? gfs2_ail1_empty+0x7ad/0x860 [ 287.416980][ T29] ? gfs2_ail_empty_tr+0x310/0x310 [ 287.422119][ T29] gfs2_logd+0x488/0xec0 [ 287.426368][ T29] ? gfs2_log_commit+0xf30/0xf30 [ 287.431339][ T29] ? rcu_is_watching+0x15/0xb0 [ 287.436190][ T29] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 287.442119][ T29] ? _raw_spin_unlock+0x40/0x40 [ 287.446973][ T29] ? rcu_is_watching+0x15/0xb0 [ 287.451768][ T29] ? wake_bit_function+0x220/0x220 [ 287.456892][ T29] ? __kthread_parkme+0x164/0x1c0 [ 287.461948][ T29] kthread+0x2b8/0x350 [ 287.466018][ T29] ? gfs2_log_commit+0xf30/0xf30 [ 287.471063][ T29] ? kthread_blkcg+0xd0/0xd0 [ 287.475674][ T29] ret_from_fork+0x48/0x80 [ 287.480124][ T29] ? kthread_blkcg+0xd0/0xd0 [ 287.484804][ T29] ret_from_fork_asm+0x11/0x20 [ 287.489603][ T29] [ 287.492623][ T29] INFO: task gfs2_quotad:5033 blocked for more than 144 seconds. [ 287.500489][ T29] Not tainted 6.5.0-syzkaller-11075-g92901222f83d #0 [ 287.507702][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.516345][ T29] task:gfs2_quotad state:D stack:27216 pid:5033 ppid:2 flags:0x00004000 [ 287.525566][ T29] Call Trace: [ 287.528867][ T29] [ 287.531784][ T29] __schedule+0x1873/0x48f0 [ 287.536276][ T29] ? rcu_is_watching+0x15/0xb0 [ 287.541067][ T29] ? lock_release+0xbf/0x9d0 [ 287.545664][ T29] ? release_firmware_map_entry+0x190/0x190 [ 287.551590][ T29] ? print_irqtrace_events+0x220/0x220 [ 287.557048][ T29] ? _raw_spin_lock_irq+0xdf/0x120 [ 287.562187][ T29] schedule+0xc3/0x180 [ 287.566266][ T29] schedule_preempt_disabled+0x13/0x20 [ 287.571770][ T29] rwsem_down_read_slowpath+0x5f4/0x950 [ 287.577346][ T29] ? down_write_killable_nested+0x80/0x80 [ 287.583093][ T29] down_read+0x9c/0x2f0 [ 287.587302][ T29] ? __gfs2_trans_begin+0x544/0x940 [ 287.592503][ T29] __gfs2_trans_begin+0x55c/0x940 [ 287.597584][ T29] ? gfs2_uevent+0x160/0x160 [ 287.602175][ T29] ? rcu_is_watching+0x15/0xb0 [ 287.606923][ T29] ? kmem_cache_alloc+0x152/0x300 [ 287.612036][ T29] ? gfs2_trans_begin+0x53/0xe0 [ 287.616889][ T29] gfs2_trans_begin+0x71/0xe0 [ 287.621597][ T29] gfs2_statfs_sync+0x41e/0x870 [ 287.626453][ T29] ? __lock_acquire+0x7f70/0x7f70 [ 287.631504][ T29] ? update_statfs+0x350/0x350 [ 287.636270][ T29] ? rcu_is_watching+0x15/0xb0 [ 287.641058][ T29] ? gfs2_quotad+0x37f/0x680 [ 287.645649][ T29] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 287.651562][ T29] ? _raw_spin_unlock+0x40/0x40 [ 287.656412][ T29] gfs2_quotad+0x37f/0x680 [ 287.660853][ T29] ? gfs2_wake_up_statfs+0xc0/0xc0 [ 287.666079][ T29] ? wake_bit_function+0x220/0x220 [ 287.671224][ T29] ? _raw_spin_unlock+0x40/0x40 [ 287.676075][ T29] ? __kthread_parkme+0x164/0x1c0 [ 287.681121][ T29] kthread+0x2b8/0x350 [ 287.685194][ T29] ? gfs2_wake_up_statfs+0xc0/0xc0 [ 287.690323][ T29] ? kthread_blkcg+0xd0/0xd0 [ 287.694911][ T29] ret_from_fork+0x48/0x80 [ 287.699364][ T29] ? kthread_blkcg+0xd0/0xd0 [ 287.703966][ T29] ret_from_fork_asm+0x11/0x20 [ 287.708767][ T29] [ 287.711794][ T29] INFO: lockdep is turned off. [ 287.716539][ T29] NMI backtrace for cpu 0 [ 287.720845][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.5.0-syzkaller-11075-g92901222f83d #0 [ 287.730279][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 287.740313][ T29] Call Trace: [ 287.743575][ T29] [ 287.746487][ T29] dump_stack_lvl+0x1e7/0x2d0 [ 287.751151][ T29] ? nf_tcp_handle_invalid+0x650/0x650 [ 287.756587][ T29] ? panic+0x770/0x770 [ 287.760639][ T29] nmi_cpu_backtrace+0x498/0x4d0 [ 287.765558][ T29] ? nmi_trigger_cpumask_backtrace+0x310/0x310 [ 287.771701][ T29] ? panic+0x770/0x770 [ 287.775752][ T29] ? print_tainted+0x14a/0x170 [ 287.780513][ T29] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 287.786583][ T29] nmi_trigger_cpumask_backtrace+0x198/0x310 [ 287.792574][ T29] watchdog+0xdf5/0xe40 [ 287.796780][ T29] kthread+0x2b8/0x350 [ 287.800922][ T29] ? hungtask_pm_notify+0x90/0x90 [ 287.806005][ T29] ? kthread_blkcg+0xd0/0xd0 [ 287.810582][ T29] ret_from_fork+0x48/0x80 [ 287.814986][ T29] ? kthread_blkcg+0xd0/0xd0 [ 287.819562][ T29] ret_from_fork_asm+0x11/0x20 [ 287.824338][ T29] [ 287.827413][ T29] Sending NMI from CPU 0 to CPUs 1: [ 287.832628][ C1] NMI backtrace for cpu 1 [ 287.832639][ C1] CPU: 1 PID: 68 Comm: kworker/u4:4 Not tainted 6.5.0-syzkaller-11075-g92901222f83d #0 [ 287.832655][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 287.832665][ C1] Workqueue: events_unbound toggle_allocation_gate [ 287.832737][ C1] RIP: 0010:insn_get_prefixes+0x113/0x18a0 [ 287.832759][ C1] Code: 0f b6 04 03 84 c0 0f 85 fd 10 00 00 41 0f b6 6d 00 bf 0f 00 00 00 89 ee e8 5a 5e c8 f6 4d 8d 65 02 83 fd 0f 0f 85 15 01 00 00 <4d> 39 f4 0f 87 0c 01 00 00 48 8b 44 24 08 48 c1 e8 03 48 b9 00 00 [ 287.832771][ C1] RSP: 0018:ffffc90001597660 EFLAGS: 00000246 [ 287.832782][ C1] RAX: 0000000000000000 RBX: 1ffffffff160ae95 RCX: ffffffff8b0574ab [ 287.832792][ C1] RDX: ffff888018ab8000 RSI: 000000000000000f RDI: 000000000000000f [ 287.832801][ C1] RBP: 000000000000000f R08: ffffffff8ac531f6 R09: 0000000000000000 [ 287.832810][ C1] R10: ffffc900015979c0 R11: fffff520002b2f43 R12: ffffffff8b0574ac [ 287.832821][ C1] R13: ffffffff8b0574aa R14: ffffffff8b0574b9 R15: ffffc900015979c0 [ 287.832832][ C1] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 287.832844][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.832854][ C1] CR2: 0000555efaf520e8 CR3: 000000000d130000 CR4: 00000000003506e0 [ 287.832867][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 287.832875][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 287.832884][ C1] Call Trace: [ 287.832889][ C1] [ 287.832894][ C1] ? nmi_cpu_backtrace+0x3be/0x4d0 [ 287.832915][ C1] ? nmi_trigger_cpumask_backtrace+0x310/0x310 [ 287.832939][ C1] ? insn_get_prefixes+0x113/0x18a0 [ 287.832958][ C1] ? nmi_cpu_backtrace_handler+0xc/0x10 [ 287.832979][ C1] ? nmi_handle+0x125/0x530 [ 287.832999][ C1] ? insn_get_prefixes+0x113/0x18a0 [ 287.833017][ C1] ? default_do_nmi+0x62/0x150 [ 287.833034][ C1] ? exc_nmi+0x11e/0x1f0 [ 287.833051][ C1] ? end_repeat_nmi+0x16/0x31 [ 287.833071][ C1] ? insn_get_prefixes+0x106/0x18a0 [ 287.833091][ C1] ? insn_get_prefixes+0x113/0x18a0 [ 287.833110][ C1] ? insn_get_prefixes+0x113/0x18a0 [ 287.833129][ C1] ? insn_get_prefixes+0x113/0x18a0 [ 287.833147][ C1] [ 287.833152][ C1] [ 287.833162][ C1] insn_get_opcode+0x1b2/0xa50 [ 287.833180][ C1] ? inat_get_opcode_attribute+0xc/0x50 [ 287.833198][ C1] ? insn_get_opcode+0x782/0xa50 [ 287.833221][ C1] insn_get_modrm+0x22e/0x7a0 [ 287.833239][ C1] ? insn_get_modrm+0x4e6/0x7a0 [ 287.833259][ C1] insn_get_displacement+0x13e/0x980 [ 287.833281][ C1] insn_get_immediate+0x382/0x13d0 [ 287.833300][ C1] ? insn_get_immediate+0xbe9/0x13d0 [ 287.833320][ C1] insn_decode+0x370/0x500 [ 287.833339][ C1] ? kmem_cache_alloc_bulk+0xe3/0x4b0 [ 287.833358][ C1] text_poke_loc_init+0xed/0x860 [ 287.833375][ C1] ? __jump_label_patch+0x2ca/0x480 [ 287.833394][ C1] ? kmem_cache_alloc_bulk+0xe3/0x4b0 [ 287.833413][ C1] ? text_poke_finish+0x50/0x50 [ 287.833434][ C1] ? read_lock_is_recursive+0x20/0x20 [ 287.833455][ C1] ? text_poke_queue+0x12c/0x180 [ 287.833477][ C1] arch_jump_label_transform_queue+0x8b/0xf0 [ 287.833499][ C1] __jump_label_update+0x177/0x3a0 [ 287.833522][ C1] static_key_disable_cpuslocked+0xce/0x1b0 [ 287.833543][ C1] static_key_disable+0x1a/0x20 [ 287.833560][ C1] toggle_allocation_gate+0x1b8/0x250 [ 287.833586][ C1] ? show_object+0x70/0x70 [ 287.833604][ C1] ? print_irqtrace_events+0x220/0x220 [ 287.833622][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 287.833642][ C1] process_one_work+0x781/0x1130 [ 287.833669][ C1] ? worker_detach_from_pool+0x290/0x290 [ 287.833692][ C1] ? assign_work+0x364/0x3d0 [ 287.833712][ C1] worker_thread+0xabf/0x1060 [ 287.833731][ C1] ? _raw_spin_unlock+0x40/0x40 [ 287.833750][ C1] ? __kthread_parkme+0x164/0x1c0 [ 287.833767][ C1] kthread+0x2b8/0x350 [ 287.833783][ C1] ? pr_cont_work+0x5e0/0x5e0 [ 287.833800][ C1] ? kthread_blkcg+0xd0/0xd0 [ 287.833817][ C1] ret_from_fork+0x48/0x80 [ 287.833833][ C1] ? kthread_blkcg+0xd0/0xd0 [ 287.833849][ C1] ret_from_fork_asm+0x11/0x20 [ 287.833874][ C1] [ 287.833880][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.251 msecs [ 287.834631][ T29] Kernel panic - not syncing: hung_task: blocked tasks [ 288.252009][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.5.0-syzkaller-11075-g92901222f83d #0 [ 288.261456][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 288.271599][ T29] Call Trace: [ 288.274868][ T29] [ 288.277790][ T29] dump_stack_lvl+0x1e7/0x2d0 [ 288.282462][ T29] ? nf_tcp_handle_invalid+0x650/0x650 [ 288.287911][ T29] ? panic+0x770/0x770 [ 288.291980][ T29] ? vscnprintf+0x5d/0x80 [ 288.296301][ T29] panic+0x30f/0x770 [ 288.300190][ T29] ? schedule_preempt_disabled+0x20/0x20 [ 288.305994][ T29] ? nmi_trigger_cpumask_backtrace+0x244/0x310 [ 288.312155][ T29] ? __memcpy_flushcache+0x2b0/0x2b0 [ 288.317434][ T29] ? nmi_backtrace_stall_check+0x465/0x470 [ 288.323233][ T29] ? preempt_schedule_thunk+0x1a/0x30 [ 288.328597][ T29] ? nmi_trigger_cpumask_backtrace+0x244/0x310 [ 288.334912][ T29] ? nmi_trigger_cpumask_backtrace+0x2c5/0x310 [ 288.341053][ T29] ? nmi_trigger_cpumask_backtrace+0x2ca/0x310 [ 288.347288][ T29] watchdog+0xe33/0xe40 [ 288.351436][ T29] kthread+0x2b8/0x350 [ 288.355494][ T29] ? hungtask_pm_notify+0x90/0x90 [ 288.360525][ T29] ? kthread_blkcg+0xd0/0xd0 [ 288.365115][ T29] ret_from_fork+0x48/0x80 [ 288.369522][ T29] ? kthread_blkcg+0xd0/0xd0 [ 288.374098][ T29] ret_from_fork_asm+0x11/0x20 [ 288.378865][ T29] [ 288.382072][ T29] Kernel Offset: disabled [ 288.386381][ T29] Rebooting in 86400 seconds..