./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1054779636 <...> Warning: Permanently added '10.128.1.202' (ED25519) to the list of known hosts. execve("./syz-executor1054779636", ["./syz-executor1054779636"], 0x7ffe331bf450 /* 10 vars */) = 0 brk(NULL) = 0x55556ee7d000 brk(0x55556ee7dd00) = 0x55556ee7dd00 arch_prctl(ARCH_SET_FS, 0x55556ee7d380) = 0 set_tid_address(0x55556ee7d650) = 5078 set_robust_list(0x55556ee7d660, 24) = 0 rseq(0x55556ee7dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1054779636", 4096) = 28 getrandom("\x8c\x38\x67\xf5\xf2\xb8\x86\x0f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556ee7dd00 brk(0x55556ee9ed00) = 0x55556ee9ed00 brk(0x55556ee9f000) = 0x55556ee9f000 mprotect(0x7fbfb2a7f000, 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, child_tidptr=0x55556ee7d650) = 5079 ./strace-static-x86_64: Process 5079 attached [pid 5079] set_robust_list(0x55556ee7d660, 24) = 0 [pid 5079] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5079] setsid() = 1 [pid 5079] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5079] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5079] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5079] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5079] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5079] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5079] unshare(CLONE_NEWNS) = 0 [pid 5079] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5079] unshare(CLONE_NEWIPC) = 0 [pid 5079] unshare(CLONE_NEWCGROUP) = 0 [pid 5079] unshare(CLONE_NEWUTS) = 0 [pid 5079] unshare(CLONE_SYSVSEM) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "16777216", 8) = 8 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "536870912", 9) = 9 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "1024", 4) = 4 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "8192", 4) = 4 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "1024", 4) = 4 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "1024", 4) = 4 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5079] close(3) = 0 [pid 5079] getpid() = 1 [pid 5079] 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 [ 56.015157][ T1108] RSP: 0018:ffffc9000477ed58 EFLAGS: 00010246 [ 56.021235][ T1108] RAX: 0000000000000023 RBX: ffff88801d297b00 RCX: 6300ec6b0e3e1f00 [ 56.029242][ T1108] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 56.037260][ T1108] RBP: 0000000000000000 R08: ffffffff817690bc R09: 1ffff920008efd4c [ 56.045270][ T1108] R10: dffffc0000000000 R11: fffff520008efd4d R12: 0000000000000000 [ 56.053244][ T1108] R13: dffffc0000000000 R14: ffff8880789c2000 R15: ffff8880789c20e0 [ 56.061277][ T1108] FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 56.070252][ T1108] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.076875][ T1108] CR2: 00007f8185de6ed8 CR3: 0000000022a72000 CR4: 00000000003506f0 [ 56.084855][ T1108] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.092883][ T1108] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.100918][ T1108] Call Trace: [ 56.104209][ T1108] [ 56.107195][ T1108] ? __warn+0x163/0x4e0 [ 56.111371][ T1108] ? hfsplus_bnode_create+0x3b6/0x440 [ 56.116799][ T1108] ? report_bug+0x2b3/0x500 [ 56.121320][ T1108] ? hfsplus_bnode_create+0x3b6/0x440 [ 56.126734][ T1108] ? handle_bug+0x3e/0x70 [ 56.131068][ T1108] ? exc_invalid_op+0x1a/0x50 [ 56.135797][ T1108] ? asm_exc_invalid_op+0x1a/0x20 [ 56.140927][ T1108] ? __wake_up_klogd+0xcc/0x110 [ 56.145825][ T1108] ? hfsplus_bnode_create+0x3b6/0x440 [ 56.151207][ T1108] ? hfsplus_bnode_create+0x3b5/0x440 [ 56.156637][ T1108] hfsplus_bmap_alloc+0x59a/0x640 [ 56.161673][ T1108] ? __pfx_hfsplus_bmap_alloc+0x10/0x10 [ 56.167268][ T1108] hfs_btree_inc_height+0x11e/0xdc0 [ 56.172481][ T1108] ? __pfx_hfs_btree_inc_height+0x10/0x10 [ 56.178259][ T1108] ? __mutex_trylock_common+0x183/0x2e0 [ 56.183820][ T1108] ? __pfx___might_resched+0x10/0x10 [ 56.189162][ T1108] ? __pfx___mutex_trylock_common+0x10/0x10 [ 56.195109][ T1108] hfsplus_brec_insert+0x166/0xde0 [ 56.200211][ T1108] ? trace_contention_end+0x3c/0x120 [ 56.205542][ T1108] ? __mutex_lock+0x2ef/0xd70 [ 56.210245][ T1108] ? hfsplus_brec_find+0x19d/0x570 [ 56.215417][ T1108] ? hfsplus_find_init+0x14a/0x1c0 [ 56.220538][ T1108] ? __pfx_hfs_find_rec_by_key+0x10/0x10 [ 56.226209][ T1108] ? __pfx_hfsplus_brec_insert+0x10/0x10 [ 56.231859][ T1108] ? rcu_is_watching+0x15/0xb0 [ 56.236679][ T1108] ? trace_kmalloc+0x1f/0xd0 [ 56.241279][ T1108] __hfsplus_ext_write_extent+0x36b/0x5c0 [ 56.247036][ T1108] hfsplus_ext_write_extent+0x16a/0x1f0 [ 56.252603][ T1108] ? __pfx_hfsplus_ext_write_extent+0x10/0x10 [ 56.258735][ T1108] ? do_raw_spin_lock+0x14f/0x370 [ 56.263777][ T1108] hfsplus_write_inode+0x22/0x5e0 [ 56.268862][ T1108] __writeback_single_inode+0x6b9/0x10b0 [ 56.274509][ T1108] writeback_sb_inodes+0x99c/0x1380 [ 56.279817][ T1108] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 56.285505][ T1108] ? do_raw_spin_lock+0x14f/0x370 [ 56.290519][ T1108] ? __lock_acquire+0x1346/0x1fd0 [ 56.295627][ T1108] ? rcu_is_watching+0x15/0xb0 [ 56.300397][ T1108] ? queue_io+0x3d9/0x5a0 [ 56.304721][ T1108] wb_writeback+0x481/0xd40 [ 56.309278][ T1108] ? queue_io+0x301/0x5a0 [ 56.313652][ T1108] ? __pfx_wb_writeback+0x10/0x10 [ 56.318794][ T1108] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 56.324803][ T1108] wb_workfn+0x410/0x1090 [ 56.329235][ T1108] ? __pfx_wb_workfn+0x10/0x10 [ 56.334032][ T1108] ? __pfx_lock_acquire+0x10/0x10 [ 56.339127][ T1108] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 56.345178][ T1108] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 56.351526][ T1108] ? process_scheduled_works+0x945/0x1830 [ 56.357343][ T1108] process_scheduled_works+0xa2c/0x1830 [ 56.362927][ T1108] ? __pfx_process_scheduled_works+0x10/0x10 [ 56.368961][ T1108] ? assign_work+0x364/0x3d0 [ 56.373569][ T1108] worker_thread+0x86d/0xd70 [ 56.378311][ T1108] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 56.384220][ T1108] ? __kthread_parkme+0x169/0x1d0 [ 56.389291][ T1108] ? __pfx_worker_thread+0x10/0x10 [ 56.394413][ T1108] kthread+0x2f0/0x390 [ 56.398570][ T1108] ? __pfx_worker_thread+0x10/0x10 [ 56.403707][ T1108] ? __pfx_kthread+0x10/0x10 [ 56.408454][ T1108] ret_from_fork+0x4b/0x80 [ 56.412889][ T1108] ? __pfx_kthread+0x10/0x10 [ 56.417539][ T1108] ret_from_fork_asm+0x1a/0x30 [ 56.422328][ T1108] [ 56.425380][ T1108] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 56.432693][ T1108] CPU: 1 PID: 1108 Comm: kworker/u8:6 Not tainted 6.10.0-rc4-syzkaller-00301-g5f583a3162ff #0 [ 56.442915][ T1108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 56.452959][ T1108] Workqueue: writeback wb_workfn (flush-7:0) [ 56.458943][ T1108] Call Trace: [ 56.462223][ T1108] [ 56.465233][ T1108] dump_stack_lvl+0x241/0x360 [ 56.469912][ T1108] ? __pfx_dump_stack_lvl+0x10/0x10 [ 56.475107][ T1108] ? __pfx__printk+0x10/0x10 [ 56.479690][ T1108] ? _printk+0xd5/0x120 [ 56.483845][ T1108] ? vscnprintf+0x5d/0x90 [ 56.488173][ T1108] panic+0x349/0x860 [ 56.492065][ T1108] ? __warn+0x172/0x4e0 [ 56.496214][ T1108] ? __pfx_panic+0x10/0x10 [ 56.500627][ T1108] ? show_trace_log_lvl+0x4e6/0x520 [ 56.505886][ T1108] ? ret_from_fork_asm+0x1a/0x30 [ 56.510921][ T1108] __warn+0x346/0x4e0 [ 56.514898][ T1108] ? hfsplus_bnode_create+0x3b6/0x440 [ 56.520265][ T1108] report_bug+0x2b3/0x500 [ 56.524589][ T1108] ? hfsplus_bnode_create+0x3b6/0x440 [ 56.529958][ T1108] handle_bug+0x3e/0x70 [ 56.534100][ T1108] exc_invalid_op+0x1a/0x50 [ 56.538594][ T1108] asm_exc_invalid_op+0x1a/0x20 [ 56.543448][ T1108] RIP: 0010:hfsplus_bnode_create+0x3b6/0x440 [ 56.549419][ T1108] Code: 44 89 e6 e8 4c f6 fb 08 e9 78 fd ff ff e8 d2 01 18 ff 4c 89 ff e8 ba c8 09 09 48 c7 c7 c0 7a e1 8b 44 89 e6 e8 2b f6 fb 08 90 <0f> 0b 90 eb af 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 83 fc ff ff 48 [ 56.569046][ T1108] RSP: 0018:ffffc9000477ed58 EFLAGS: 00010246 [ 56.575148][ T1108] RAX: 0000000000000023 RBX: ffff88801d297b00 RCX: 6300ec6b0e3e1f00 [ 56.583123][ T1108] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 56.591175][ T1108] RBP: 0000000000000000 R08: ffffffff817690bc R09: 1ffff920008efd4c [ 56.599167][ T1108] R10: dffffc0000000000 R11: fffff520008efd4d R12: 0000000000000000 [ 56.607131][ T1108] R13: dffffc0000000000 R14: ffff8880789c2000 R15: ffff8880789c20e0 [ 56.615121][ T1108] ? __wake_up_klogd+0xcc/0x110 [ 56.619978][ T1108] ? hfsplus_bnode_create+0x3b5/0x440 [ 56.625346][ T1108] hfsplus_bmap_alloc+0x59a/0x640 [ 56.630453][ T1108] ? __pfx_hfsplus_bmap_alloc+0x10/0x10 [ 56.635996][ T1108] hfs_btree_inc_height+0x11e/0xdc0 [ 56.641194][ T1108] ? __pfx_hfs_btree_inc_height+0x10/0x10 [ 56.646907][ T1108] ? __mutex_trylock_common+0x183/0x2e0 [ 56.652452][ T1108] ? __pfx___might_resched+0x10/0x10 [ 56.657731][ T1108] ? __pfx___mutex_trylock_common+0x10/0x10 [ 56.663621][ T1108] hfsplus_brec_insert+0x166/0xde0 [ 56.668729][ T1108] ? trace_contention_end+0x3c/0x120 [ 56.674004][ T1108] ? __mutex_lock+0x2ef/0xd70 [ 56.678678][ T1108] ? hfsplus_brec_find+0x19d/0x570 [ 56.683790][ T1108] ? hfsplus_find_init+0x14a/0x1c0 [ 56.688902][ T1108] ? __pfx_hfs_find_rec_by_key+0x10/0x10 [ 56.694528][ T1108] ? __pfx_hfsplus_brec_insert+0x10/0x10 [ 56.700155][ T1108] ? rcu_is_watching+0x15/0xb0 [ 56.704909][ T1108] ? trace_kmalloc+0x1f/0xd0 [ 56.709503][ T1108] __hfsplus_ext_write_extent+0x36b/0x5c0 [ 56.715220][ T1108] hfsplus_ext_write_extent+0x16a/0x1f0 [ 56.720761][ T1108] ? __pfx_hfsplus_ext_write_extent+0x10/0x10 [ 56.726826][ T1108] ? do_raw_spin_lock+0x14f/0x370 [ 56.731852][ T1108] hfsplus_write_inode+0x22/0x5e0 [ 56.736883][ T1108] __writeback_single_inode+0x6b9/0x10b0 [ 56.742513][ T1108] writeback_sb_inodes+0x99c/0x1380 [ 56.747728][ T1108] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 56.753348][ T1108] ? do_raw_spin_lock+0x14f/0x370 [ 56.758364][ T1108] ? __lock_acquire+0x1346/0x1fd0 [ 56.763434][ T1108] ? rcu_is_watching+0x15/0xb0 [ 56.768208][ T1108] ? queue_io+0x3d9/0x5a0 [ 56.772551][ T1108] wb_writeback+0x481/0xd40 [ 56.777075][ T1108] ? queue_io+0x301/0x5a0 [ 56.781411][ T1108] ? __pfx_wb_writeback+0x10/0x10 [ 56.786429][ T1108] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 56.792417][ T1108] wb_workfn+0x410/0x1090 [ 56.796757][ T1108] ? __pfx_wb_workfn+0x10/0x10 [ 56.801518][ T1108] ? __pfx_lock_acquire+0x10/0x10 [ 56.806532][ T1108] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 56.812502][ T1108] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 56.818832][ T1108] ? process_scheduled_works+0x945/0x1830 [ 56.824540][ T1108] process_scheduled_works+0xa2c/0x1830 [ 56.830094][ T1108] ? __pfx_process_scheduled_works+0x10/0x10 [ 56.836072][ T1108] ? assign_work+0x364/0x3d0 [ 56.840652][ T1108] worker_thread+0x86d/0xd70 [ 56.845237][ T1108] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 56.851123][ T1108] ? __kthread_parkme+0x169/0x1d0 [ 56.856138][ T1108] ? __pfx_worker_thread+0x10/0x10 [ 56.861237][ T1108] kthread+0x2f0/0x390 [ 56.865298][ T1108] ? __pfx_worker_thread+0x10/0x10 [ 56.870396][ T1108] ? __pfx_kthread+0x10/0x10 [ 56.874981][ T1108] ret_from_fork+0x4b/0x80 [ 56.879397][ T1108] ? __pfx_kthread+0x10/0x10 [ 56.883976][ T1108] ret_from_fork_asm+0x1a/0x30 [ 56.888754][ T1108] [ 56.891981][ T1108] Kernel Offset: disabled [ 56.896331][ T1108] Rebooting in 86400 seconds..