./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2148915211 <...> Warning: Permanently added '10.128.1.109' (ECDSA) to the list of known hosts. execve("./syz-executor2148915211", ["./syz-executor2148915211"], 0x7fff51456b20 /* 10 vars */) = 0 brk(NULL) = 0x555556c86000 brk(0x555556c86c40) = 0x555556c86c40 arch_prctl(ARCH_SET_FS, 0x555556c86300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2148915211", 4096) = 28 brk(0x555556ca7c40) = 0x555556ca7c40 brk(0x555556ca8000) = 0x555556ca8000 mprotect(0x7f14c77d4000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5070 attached , child_tidptr=0x555556c865d0) = 5070 [pid 5070] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5070] setsid() = 1 [pid 5070] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5070] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5070] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5070] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5070] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5070] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5070] unshare(CLONE_NEWNS) = 0 [pid 5070] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5070] unshare(CLONE_NEWIPC) = 0 [pid 5070] unshare(CLONE_NEWCGROUP) = 0 [pid 5070] unshare(CLONE_NEWUTS) = 0 [pid 5070] unshare(CLONE_SYSVSEM) = 0 [pid 5070] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] write(3, "16777216", 8) = 8 [pid 5070] close(3) = 0 [pid 5070] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] write(3, "536870912", 9) = 9 [pid 5070] close(3) = 0 [pid 5070] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] write(3, "1024", 4) = 4 [pid 5070] close(3) = 0 [pid 5070] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] write(3, "8192", 4) = 4 [pid 5070] close(3) = 0 [pid 5070] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] write(3, "1024", 4) = 4 [pid 5070] close(3) = 0 [pid 5070] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] write(3, "1024", 4) = 4 [pid 5070] close(3) = 0 [pid 5070] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5070] close(3) = 0 [pid 5070] getpid() = 1 [pid 5070] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 52.828677][ T47] dump_stack_lvl+0x1e7/0x2d0 [ 52.833410][ T47] ? nf_tcp_handle_invalid+0x650/0x650 [ 52.838874][ T47] ? panic+0x770/0x770 [ 52.842927][ T47] ? _printk+0xd5/0x120 [ 52.847064][ T47] print_report+0xe6/0x540 [ 52.851463][ T47] ? xfs_mru_cache_remove+0x17d/0x190 [ 52.856818][ T47] ? __virt_addr_valid+0x58/0x2e0 [ 52.861847][ T47] ? xfs_filestream_select_ag+0x14e5/0x1ca0 [ 52.867724][ T47] kasan_report+0x176/0x1b0 [ 52.872210][ T47] ? xfs_filestream_select_ag+0x14e5/0x1ca0 [ 52.878093][ T47] kasan_check_range+0x283/0x290 [ 52.883018][ T47] xfs_filestream_select_ag+0x14e5/0x1ca0 [ 52.888724][ T47] ? get_random_u32+0x47d/0x7e0 [ 52.893559][ T47] ? xfs_get_extsz_hint+0x143/0x210 [ 52.898741][ T47] xfs_bmap_btalloc+0xffa/0x28a0 [ 52.903678][ T47] ? xfs_bmbt_lookup_first+0x40/0x40 [ 52.908953][ T47] ? __lock_acquire+0x125b/0x1f80 [ 52.914056][ T47] ? xfs_iext_prev+0x349/0x370 [ 52.918805][ T47] ? xfs_iext_get_extent+0xeb/0x390 [ 52.923992][ T47] xfs_bmapi_allocate+0x647/0xf30 [ 52.929006][ T47] ? xfs_bmapi_write+0x1980/0x1980 [ 52.934124][ T47] ? xfs_iext_prev+0x349/0x370 [ 52.938871][ T47] ? xfs_iext_get_extent+0xeb/0x390 [ 52.944056][ T47] xfs_bmapi_convert_delalloc+0x98f/0x1310 [ 52.949851][ T47] ? xfs_bmapi_finish+0x3d0/0x3d0 [ 52.954868][ T47] ? xfs_iext_lookup_extent+0x5fe/0x890 [ 52.960396][ T47] ? rcu_is_watching+0x15/0xb0 [ 52.965141][ T47] ? xfs_map_blocks+0x56b/0x1090 [ 52.970061][ T47] xfs_map_blocks+0x780/0x1090 [ 52.974815][ T47] ? xfs_dax_writepages+0x180/0x180 [ 52.979995][ T47] ? i_blocks_per_folio+0x11b/0x270 [ 52.985184][ T47] iomap_do_writepage+0x941/0x2ee0 [ 52.990295][ T47] ? __lock_acquire+0x1f80/0x1f80 [ 52.995305][ T47] ? iomap_writepages+0x240/0x240 [ 53.000330][ T47] ? mark_lock+0x9a/0x340 [ 53.004645][ T47] write_cache_pages+0x89e/0x12c0 [ 53.009661][ T47] ? iomap_writepages+0x240/0x240 [ 53.014688][ T47] ? tag_pages_for_writeback+0x6a0/0x6a0 [ 53.020310][ T47] iomap_writepages+0x68/0x240 [ 53.025058][ T47] xfs_vm_writepages+0x139/0x1a0 [ 53.029983][ T47] ? xfs_vm_read_folio+0x20/0x20 [ 53.034905][ T47] ? writeback_sb_inodes+0x3c8/0x11d0 [ 53.040263][ T47] ? xfs_vm_read_folio+0x20/0x20 [ 53.045183][ T47] do_writepages+0x3a6/0x670 [ 53.049765][ T47] ? folio_nr_pages+0x1c0/0x1c0 [ 53.054630][ T47] ? wbc_attach_and_unlock_inode+0x2ff/0x560 [ 53.060593][ T47] ? __lock_acquire+0x1f80/0x1f80 [ 53.065603][ T47] ? do_raw_spin_unlock+0x13b/0x8b0 [ 53.070788][ T47] __writeback_single_inode+0x155/0xfb0 [ 53.076346][ T47] writeback_sb_inodes+0x8ef/0x11d0 [ 53.081537][ T47] ? queue_io+0x570/0x570 [ 53.085872][ T47] ? __writeback_inodes_wb+0x260/0x260 [ 53.091318][ T47] ? queue_io+0x3d5/0x570 [ 53.095632][ T47] wb_writeback+0x458/0xc70 [ 53.100124][ T47] ? rcu_lock_release+0x30/0x30 [ 53.104956][ T47] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 53.110920][ T47] wb_workfn+0x400/0xff0 [ 53.115152][ T47] ? inode_wait_for_writeback+0x290/0x290 [ 53.120856][ T47] ? read_lock_is_recursive+0x20/0x20 [ 53.126210][ T47] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 53.132172][ T47] ? print_irqtrace_events+0x220/0x220 [ 53.137610][ T47] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 53.143501][ T47] process_one_work+0x8a0/0x10e0 [ 53.148531][ T47] ? worker_detach_from_pool+0x290/0x290 [ 53.154155][ T47] ? _raw_spin_lock_irqsave+0x120/0x120 [ 53.159683][ T47] ? kthread_data+0x52/0xc0 [ 53.164259][ T47] ? wq_worker_running+0x9b/0x1a0 [ 53.169269][ T47] worker_thread+0xa63/0x1210 [ 53.173933][ T47] kthread+0x270/0x300 [ 53.177987][ T47] ? pr_cont_work+0x5e0/0x5e0 [ 53.182647][ T47] ? kthread_blkcg+0xd0/0xd0 [ 53.187220][ T47] ret_from_fork+0x1f/0x30 [ 53.191631][ T47] [ 53.194634][ T47] ================================================================== [ 53.203015][ T47] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 53.210233][ T47] CPU: 0 PID: 47 Comm: kworker/u4:3 Not tainted 6.3.0-rc3-syzkaller-00012-g17214b70a159 #0 [ 53.220202][ T47] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 53.230260][ T47] Workqueue: writeback wb_workfn (flush-7:0) [ 53.236264][ T47] Call Trace: [ 53.239533][ T47] [ 53.242458][ T47] dump_stack_lvl+0x1e7/0x2d0 [ 53.247137][ T47] ? nf_tcp_handle_invalid+0x650/0x650 [ 53.252592][ T47] ? panic+0x770/0x770 [ 53.256653][ T47] ? vscnprintf+0x5d/0x80 [ 53.260979][ T47] panic+0x31c/0x770 [ 53.264887][ T47] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 53.271037][ T47] ? check_panic_on_warn+0x21/0xa0 [ 53.276156][ T47] ? memcpy_page_flushcache+0x100/0x100 [ 53.281697][ T47] ? _raw_spin_unlock_irqrestore+0x12c/0x140 [ 53.287671][ T47] ? _raw_spin_unlock+0x40/0x40 [ 53.292516][ T47] ? print_report+0xe6/0x540 [ 53.297096][ T47] ? xfs_mru_cache_remove+0x17d/0x190 [ 53.302462][ T47] check_panic_on_warn+0x82/0xa0 [ 53.307396][ T47] ? xfs_filestream_select_ag+0x14e5/0x1ca0 [ 53.313282][ T47] end_report+0x63/0x110 [ 53.317519][ T47] kasan_report+0x183/0x1b0 [ 53.322016][ T47] ? xfs_filestream_select_ag+0x14e5/0x1ca0 [ 53.327918][ T47] kasan_check_range+0x283/0x290 [ 53.332848][ T47] xfs_filestream_select_ag+0x14e5/0x1ca0 [ 53.338563][ T47] ? get_random_u32+0x47d/0x7e0 [ 53.343415][ T47] ? xfs_get_extsz_hint+0x143/0x210 [ 53.348612][ T47] xfs_bmap_btalloc+0xffa/0x28a0 [ 53.353549][ T47] ? xfs_bmbt_lookup_first+0x40/0x40 [ 53.358823][ T47] ? __lock_acquire+0x125b/0x1f80 [ 53.363847][ T47] ? xfs_iext_prev+0x349/0x370 [ 53.368619][ T47] ? xfs_iext_get_extent+0xeb/0x390 [ 53.373808][ T47] xfs_bmapi_allocate+0x647/0xf30 [ 53.378828][ T47] ? xfs_bmapi_write+0x1980/0x1980 [ 53.383929][ T47] ? xfs_iext_prev+0x349/0x370 [ 53.388682][ T47] ? xfs_iext_get_extent+0xeb/0x390 [ 53.393957][ T47] xfs_bmapi_convert_delalloc+0x98f/0x1310 [ 53.399795][ T47] ? xfs_bmapi_finish+0x3d0/0x3d0 [ 53.404827][ T47] ? xfs_iext_lookup_extent+0x5fe/0x890 [ 53.410367][ T47] ? rcu_is_watching+0x15/0xb0 [ 53.415123][ T47] ? xfs_map_blocks+0x56b/0x1090 [ 53.420054][ T47] xfs_map_blocks+0x780/0x1090 [ 53.424825][ T47] ? xfs_dax_writepages+0x180/0x180 [ 53.430027][ T47] ? i_blocks_per_folio+0x11b/0x270 [ 53.435237][ T47] iomap_do_writepage+0x941/0x2ee0 [ 53.440340][ T47] ? __lock_acquire+0x1f80/0x1f80 [ 53.445361][ T47] ? iomap_writepages+0x240/0x240 [ 53.450388][ T47] ? mark_lock+0x9a/0x340 [ 53.454756][ T47] write_cache_pages+0x89e/0x12c0 [ 53.459802][ T47] ? iomap_writepages+0x240/0x240 [ 53.464818][ T47] ? tag_pages_for_writeback+0x6a0/0x6a0 [ 53.470452][ T47] iomap_writepages+0x68/0x240 [ 53.475209][ T47] xfs_vm_writepages+0x139/0x1a0 [ 53.480140][ T47] ? xfs_vm_read_folio+0x20/0x20 [ 53.485090][ T47] ? writeback_sb_inodes+0x3c8/0x11d0 [ 53.490477][ T47] ? xfs_vm_read_folio+0x20/0x20 [ 53.495424][ T47] do_writepages+0x3a6/0x670 [ 53.500035][ T47] ? folio_nr_pages+0x1c0/0x1c0 [ 53.504905][ T47] ? wbc_attach_and_unlock_inode+0x2ff/0x560 [ 53.510893][ T47] ? __lock_acquire+0x1f80/0x1f80 [ 53.515917][ T47] ? do_raw_spin_unlock+0x13b/0x8b0 [ 53.521126][ T47] __writeback_single_inode+0x155/0xfb0 [ 53.526697][ T47] writeback_sb_inodes+0x8ef/0x11d0 [ 53.531902][ T47] ? queue_io+0x570/0x570 [ 53.536250][ T47] ? __writeback_inodes_wb+0x260/0x260 [ 53.541715][ T47] ? queue_io+0x3d5/0x570 [ 53.546040][ T47] wb_writeback+0x458/0xc70 [ 53.550715][ T47] ? rcu_lock_release+0x30/0x30 [ 53.555589][ T47] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 53.561576][ T47] wb_workfn+0x400/0xff0 [ 53.565824][ T47] ? inode_wait_for_writeback+0x290/0x290 [ 53.571566][ T47] ? read_lock_is_recursive+0x20/0x20 [ 53.576936][ T47] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 53.582913][ T47] ? print_irqtrace_events+0x220/0x220 [ 53.588387][ T47] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 53.594289][ T47] process_one_work+0x8a0/0x10e0 [ 53.599223][ T47] ? worker_detach_from_pool+0x290/0x290 [ 53.604847][ T47] ? _raw_spin_lock_irqsave+0x120/0x120 [ 53.610385][ T47] ? kthread_data+0x52/0xc0 [ 53.614881][ T47] ? wq_worker_running+0x9b/0x1a0 [ 53.619897][ T47] worker_thread+0xa63/0x1210 [ 53.624594][ T47] kthread+0x270/0x300 [ 53.628664][ T47] ? pr_cont_work+0x5e0/0x5e0 [ 53.633337][ T47] ? kthread_blkcg+0xd0/0xd0 [ 53.637922][ T47] ret_from_fork+0x1f/0x30 [ 53.642345][ T47] [ 53.645536][ T47] Kernel Offset: disabled [ 53.649857][ T47] Rebooting in 86400 seconds..