./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3501665235 <...> Warning: Permanently added '10.128.0.242' (ED25519) to the list of known hosts. execve("./syz-executor3501665235", ["./syz-executor3501665235"], 0x7ffd6b832fb0 /* 10 vars */) = 0 brk(NULL) = 0x55558c6db000 brk(0x55558c6dbd00) = 0x55558c6dbd00 arch_prctl(ARCH_SET_FS, 0x55558c6db380) = 0 set_tid_address(0x55558c6db650) = 5068 set_robust_list(0x55558c6db660, 24) = 0 rseq(0x55558c6dbca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3501665235", 4096) = 28 getrandom("\x07\x17\x9d\xaf\x10\x9b\x2b\xa2", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558c6dbd00 brk(0x55558c6fcd00) = 0x55558c6fcd00 brk(0x55558c6fd000) = 0x55558c6fd000 mprotect(0x7f6bf681a000, 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 5069 attached , child_tidptr=0x55558c6db650) = 5069 [pid 5069] set_robust_list(0x55558c6db660, 24) = 0 [pid 5069] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5069] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5069] setsid() = 1 [pid 5069] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5069] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5069] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5069] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5069] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5069] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5069] unshare(CLONE_NEWNS) = 0 [pid 5069] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5069] unshare(CLONE_NEWIPC) = 0 [pid 5069] unshare(CLONE_NEWCGROUP) = 0 [pid 5069] unshare(CLONE_NEWUTS) = 0 [pid 5069] unshare(CLONE_SYSVSEM) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "16777216", 8) = 8 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "536870912", 9) = 9 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "1024", 4) = 4 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "8192", 4) = 4 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "1024", 4) = 4 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "1024", 4) = 4 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5069] close(3) = 0 [pid 5069] getpid() = 1 [pid 5069] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 90 eb af 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 83 fc ff ff 48 [ 58.901889][ T1081] RSP: 0018:ffffc9000469ec58 EFLAGS: 00010246 [ 58.908002][ T1081] RAX: 000000000000001f RBX: ffff88801cabaf00 RCX: b23d1666c671b000 [ 58.916048][ T1081] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 58.924102][ T1081] RBP: 0000000000000000 R08: ffffffff8176a40c R09: 1ffff920008d3d2c [ 58.932133][ T1081] R10: dffffc0000000000 R11: fffff520008d3d2d R12: 0000000000000000 [ 58.940146][ T1081] R13: dffffc0000000000 R14: ffff888024536000 R15: ffff8880245360e0 [ 58.948211][ T1081] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 58.957351][ T1081] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.964016][ T1081] CR2: 00007f6bf681e130 CR3: 000000000e134000 CR4: 00000000003506f0 [ 58.972021][ T1081] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.979998][ T1081] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.988039][ T1081] Call Trace: [ 58.991362][ T1081] [ 58.994285][ T1081] ? __warn+0x163/0x4e0 [ 58.998460][ T1081] ? hfs_bnode_create+0x3b6/0x440 [ 59.003538][ T1081] ? report_bug+0x2b3/0x500 [ 59.008069][ T1081] ? hfs_bnode_create+0x3b6/0x440 [ 59.013157][ T1081] ? handle_bug+0x3e/0x70 [ 59.017616][ T1081] ? exc_invalid_op+0x1a/0x50 [ 59.022385][ T1081] ? asm_exc_invalid_op+0x1a/0x20 [ 59.027428][ T1081] ? __wake_up_klogd+0xcc/0x110 [ 59.032326][ T1081] ? hfs_bnode_create+0x3b6/0x440 [ 59.037386][ T1081] ? hfs_bnode_create+0x3b5/0x440 [ 59.042510][ T1081] hfs_bmap_alloc+0x5a6/0x650 [ 59.047306][ T1081] ? __pfx_hfs_bmap_alloc+0x10/0x10 [ 59.052668][ T1081] hfs_btree_inc_height+0x11e/0xd20 [ 59.057913][ T1081] ? hfs_brec_insert+0x6e0/0xbd0 [ 59.063112][ T1081] ? __pfx_hfs_btree_inc_height+0x10/0x10 [ 59.068951][ T1081] ? do_raw_spin_unlock+0x13c/0x8b0 [ 59.074239][ T1081] ? hfs_bnode_put+0x1c4/0x380 [ 59.079050][ T1081] hfs_brec_insert+0x723/0xbd0 [ 59.083901][ T1081] ? __pfx_hfs_brec_insert+0x10/0x10 [ 59.089202][ T1081] __hfs_ext_write_extent+0x2f2/0x4f0 [ 59.094648][ T1081] hfs_ext_write_extent+0x154/0x1d0 [ 59.099861][ T1081] ? __pfx_hfs_ext_write_extent+0x10/0x10 [ 59.105663][ T1081] hfs_write_inode+0xbc/0xec0 [ 59.110353][ T1081] ? __pfx_hfs_write_inode+0x10/0x10 [ 59.115681][ T1081] ? __writeback_single_inode+0x4d1/0x10b0 [ 59.121537][ T1081] ? do_raw_spin_unlock+0x13c/0x8b0 [ 59.126731][ T1081] __writeback_single_inode+0x6b9/0x10b0 [ 59.132400][ T1081] writeback_sb_inodes+0x905/0x1260 [ 59.137633][ T1081] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 59.143332][ T1081] ? do_raw_spin_lock+0x14f/0x370 [ 59.148369][ T1081] ? __lock_acquire+0x1346/0x1fd0 [ 59.153465][ T1081] ? rcu_is_watching+0x15/0xb0 [ 59.158238][ T1081] ? queue_io+0x3d9/0x5a0 [ 59.162649][ T1081] wb_writeback+0x457/0xce0 [ 59.167194][ T1081] ? __pfx_wb_writeback+0x10/0x10 [ 59.172288][ T1081] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 59.178311][ T1081] wb_workfn+0x410/0x1090 [ 59.182728][ T1081] ? __pfx_wb_workfn+0x10/0x10 [ 59.187511][ T1081] ? __pfx_lock_acquire+0x10/0x10 [ 59.192676][ T1081] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 59.198692][ T1081] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 59.205093][ T1081] ? process_scheduled_works+0x91b/0x17c0 [ 59.210904][ T1081] process_scheduled_works+0xa10/0x17c0 [ 59.216491][ T1081] ? __pfx_process_scheduled_works+0x10/0x10 [ 59.222648][ T1081] ? assign_work+0x364/0x3d0 [ 59.227250][ T1081] worker_thread+0x86d/0xd70 [ 59.231899][ T1081] ? __kthread_parkme+0x169/0x1d0 [ 59.236936][ T1081] ? __pfx_worker_thread+0x10/0x10 [ 59.242108][ T1081] kthread+0x2f0/0x390 [ 59.246188][ T1081] ? __pfx_worker_thread+0x10/0x10 [ 59.251348][ T1081] ? __pfx_kthread+0x10/0x10 [ 59.255967][ T1081] ret_from_fork+0x4b/0x80 [ 59.260392][ T1081] ? __pfx_kthread+0x10/0x10 [ 59.265115][ T1081] ret_from_fork_asm+0x1a/0x30 [ 59.269937][ T1081] [ 59.273027][ T1081] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 59.280311][ T1081] CPU: 0 PID: 1081 Comm: kworker/u8:5 Not tainted 6.9.0-rc4-syzkaller-00274-g3b68086599f8 #0 [ 59.290472][ T1081] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 59.300528][ T1081] Workqueue: writeback wb_workfn (flush-7:0) [ 59.306526][ T1081] Call Trace: [ 59.309803][ T1081] [ 59.312728][ T1081] dump_stack_lvl+0x241/0x360 [ 59.317411][ T1081] ? __pfx_dump_stack_lvl+0x10/0x10 [ 59.322624][ T1081] ? __pfx__printk+0x10/0x10 [ 59.327210][ T1081] ? _printk+0xd5/0x120 [ 59.331366][ T1081] ? vscnprintf+0x5d/0x90 [ 59.335695][ T1081] panic+0x349/0x860 [ 59.339586][ T1081] ? __warn+0x172/0x4e0 [ 59.343802][ T1081] ? __pfx_panic+0x10/0x10 [ 59.348212][ T1081] ? show_trace_log_lvl+0x4e6/0x520 [ 59.353408][ T1081] ? ret_from_fork_asm+0x1a/0x30 [ 59.358346][ T1081] __warn+0x346/0x4e0 [ 59.362323][ T1081] ? hfs_bnode_create+0x3b6/0x440 [ 59.367342][ T1081] report_bug+0x2b3/0x500 [ 59.371687][ T1081] ? hfs_bnode_create+0x3b6/0x440 [ 59.376708][ T1081] handle_bug+0x3e/0x70 [ 59.380866][ T1081] exc_invalid_op+0x1a/0x50 [ 59.385393][ T1081] asm_exc_invalid_op+0x1a/0x20 [ 59.390237][ T1081] RIP: 0010:hfs_bnode_create+0x3b6/0x440 [ 59.395864][ T1081] Code: 44 89 e6 e8 ac ce f5 08 e9 78 fd ff ff e8 82 d6 17 ff 4c 89 ff e8 ba 98 03 09 48 c7 c7 60 61 e1 8b 44 89 e6 e8 8b ce f5 08 90 <0f> 0b 90 eb af 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 83 fc ff ff 48 [ 59.415462][ T1081] RSP: 0018:ffffc9000469ec58 EFLAGS: 00010246 [ 59.421531][ T1081] RAX: 000000000000001f RBX: ffff88801cabaf00 RCX: b23d1666c671b000 [ 59.429495][ T1081] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 59.437459][ T1081] RBP: 0000000000000000 R08: ffffffff8176a40c R09: 1ffff920008d3d2c [ 59.445423][ T1081] R10: dffffc0000000000 R11: fffff520008d3d2d R12: 0000000000000000 [ 59.453472][ T1081] R13: dffffc0000000000 R14: ffff888024536000 R15: ffff8880245360e0 [ 59.461445][ T1081] ? __wake_up_klogd+0xcc/0x110 [ 59.466300][ T1081] ? hfs_bnode_create+0x3b5/0x440 [ 59.471318][ T1081] hfs_bmap_alloc+0x5a6/0x650 [ 59.475990][ T1081] ? __pfx_hfs_bmap_alloc+0x10/0x10 [ 59.481202][ T1081] hfs_btree_inc_height+0x11e/0xd20 [ 59.486402][ T1081] ? hfs_brec_insert+0x6e0/0xbd0 [ 59.491336][ T1081] ? __pfx_hfs_btree_inc_height+0x10/0x10 [ 59.497056][ T1081] ? do_raw_spin_unlock+0x13c/0x8b0 [ 59.502255][ T1081] ? hfs_bnode_put+0x1c4/0x380 [ 59.507014][ T1081] hfs_brec_insert+0x723/0xbd0 [ 59.511818][ T1081] ? __pfx_hfs_brec_insert+0x10/0x10 [ 59.517101][ T1081] __hfs_ext_write_extent+0x2f2/0x4f0 [ 59.522471][ T1081] hfs_ext_write_extent+0x154/0x1d0 [ 59.527671][ T1081] ? __pfx_hfs_ext_write_extent+0x10/0x10 [ 59.533397][ T1081] hfs_write_inode+0xbc/0xec0 [ 59.538246][ T1081] ? __pfx_hfs_write_inode+0x10/0x10 [ 59.543619][ T1081] ? __writeback_single_inode+0x4d1/0x10b0 [ 59.549425][ T1081] ? do_raw_spin_unlock+0x13c/0x8b0 [ 59.554627][ T1081] __writeback_single_inode+0x6b9/0x10b0 [ 59.560270][ T1081] writeback_sb_inodes+0x905/0x1260 [ 59.565492][ T1081] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 59.571125][ T1081] ? do_raw_spin_lock+0x14f/0x370 [ 59.576151][ T1081] ? __lock_acquire+0x1346/0x1fd0 [ 59.581200][ T1081] ? rcu_is_watching+0x15/0xb0 [ 59.586047][ T1081] ? queue_io+0x3d9/0x5a0 [ 59.590381][ T1081] wb_writeback+0x457/0xce0 [ 59.594980][ T1081] ? __pfx_wb_writeback+0x10/0x10 [ 59.600088][ T1081] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 59.606074][ T1081] wb_workfn+0x410/0x1090 [ 59.610415][ T1081] ? __pfx_wb_workfn+0x10/0x10 [ 59.615185][ T1081] ? __pfx_lock_acquire+0x10/0x10 [ 59.620205][ T1081] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 59.626289][ T1081] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 59.632628][ T1081] ? process_scheduled_works+0x91b/0x17c0 [ 59.638346][ T1081] process_scheduled_works+0xa10/0x17c0 [ 59.643914][ T1081] ? __pfx_process_scheduled_works+0x10/0x10 [ 59.649900][ T1081] ? assign_work+0x364/0x3d0 [ 59.654490][ T1081] worker_thread+0x86d/0xd70 [ 59.659091][ T1081] ? __kthread_parkme+0x169/0x1d0 [ 59.664129][ T1081] ? __pfx_worker_thread+0x10/0x10 [ 59.669232][ T1081] kthread+0x2f0/0x390 [ 59.673297][ T1081] ? __pfx_worker_thread+0x10/0x10 [ 59.678398][ T1081] ? __pfx_kthread+0x10/0x10 [ 59.682983][ T1081] ret_from_fork+0x4b/0x80 [ 59.687404][ T1081] ? __pfx_kthread+0x10/0x10 [ 59.691987][ T1081] ret_from_fork_asm+0x1a/0x30 [ 59.696761][ T1081] [ 59.699856][ T1081] Kernel Offset: disabled [ 59.704203][ T1081] Rebooting in 86400 seconds..