./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor862123704 <...> Warning: Permanently added '10.128.1.147' (ED25519) to the list of known hosts. execve("./syz-executor862123704", ["./syz-executor862123704"], 0x7fff8e23f430 /* 10 vars */) = 0 brk(NULL) = 0x555581131000 brk(0x555581131d00) = 0x555581131d00 arch_prctl(ARCH_SET_FS, 0x555581131380) = 0 set_tid_address(0x555581131650) = 5070 set_robust_list(0x555581131660, 24) = 0 rseq(0x555581131ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor862123704", 4096) = 27 getrandom("\x77\x88\x02\x5c\x8f\x82\x40\x13", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555581131d00 brk(0x555581152d00) = 0x555581152d00 brk(0x555581153000) = 0x555581153000 mprotect(0x7fc5efffd000, 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=0x555581131650) = 5071 ./strace-static-x86_64: Process 5071 attached [pid 5071] set_robust_list(0x555581131660, 24) = 0 [pid 5071] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5071] setsid() = 1 [pid 5071] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5071] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5071] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5071] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5071] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5071] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5071] unshare(CLONE_NEWNS) = 0 [pid 5071] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5071] unshare(CLONE_NEWIPC) = 0 [pid 5071] unshare(CLONE_NEWCGROUP) = 0 [pid 5071] unshare(CLONE_NEWUTS) = 0 [pid 5071] unshare(CLONE_SYSVSEM) = 0 [pid 5071] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "16777216", 8) = 8 [pid 5071] close(3) = 0 [pid 5071] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "536870912", 9) = 9 [pid 5071] close(3) = 0 [pid 5071] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "1024", 4) = 4 [pid 5071] close(3) = 0 [pid 5071] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "8192", 4) = 4 [pid 5071] close(3) = 0 [pid 5071] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "1024", 4) = 4 [pid 5071] close(3) = 0 [pid 5071] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "1024", 4) = 4 [pid 5071] close(3) = 0 [pid 5071] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5071] close(3) = 0 [pid 5071] getpid() = 1 [pid 5071] 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 [ 57.519843][ T2816] RSP: 0018:ffffc9000a9bec58 EFLAGS: 00010246 [ 57.525923][ T2816] RAX: 000000000000001f RBX: ffff888019693900 RCX: eca355565354ae00 [ 57.533937][ T2816] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 57.542016][ T2816] RBP: 0000000000000000 R08: ffffffff8176adac R09: 1ffff92001537d2c [ 57.550034][ T2816] R10: dffffc0000000000 R11: fffff52001537d2d R12: 0000000000000000 [ 57.558016][ T2816] R13: dffffc0000000000 R14: ffff888069bb6000 R15: ffff888069bb60e0 [ 57.566106][ T2816] FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 57.575112][ T2816] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.581762][ T2816] CR2: 00007fc5effd11f8 CR3: 000000000e134000 CR4: 00000000003506f0 [ 57.589776][ T2816] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.597740][ T2816] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.606051][ T2816] Call Trace: [ 57.609345][ T2816] [ 57.612795][ T2816] ? __warn+0x163/0x4e0 [ 57.616970][ T2816] ? hfs_bnode_create+0x3b6/0x440 [ 57.622070][ T2816] ? report_bug+0x2b3/0x500 [ 57.626620][ T2816] ? hfs_bnode_create+0x3b6/0x440 [ 57.631721][ T2816] ? handle_bug+0x3e/0x70 [ 57.636122][ T2816] ? exc_invalid_op+0x1a/0x50 [ 57.640892][ T2816] ? asm_exc_invalid_op+0x1a/0x20 [ 57.645982][ T2816] ? __wake_up_klogd+0xcc/0x110 [ 57.651002][ T2816] ? hfs_bnode_create+0x3b6/0x440 [ 57.656047][ T2816] ? hfs_bnode_create+0x3b5/0x440 [ 57.661183][ T2816] hfs_bmap_alloc+0x5a6/0x650 [ 57.665879][ T2816] ? __pfx_hfs_bmap_alloc+0x10/0x10 [ 57.671154][ T2816] hfs_btree_inc_height+0x11e/0xd20 [ 57.676382][ T2816] ? hfs_brec_insert+0x6e0/0xbd0 [ 57.681412][ T2816] ? __pfx_hfs_btree_inc_height+0x10/0x10 [ 57.687163][ T2816] ? do_raw_spin_unlock+0x13c/0x8b0 [ 57.692415][ T2816] ? hfs_bnode_put+0x1c4/0x380 [ 57.697218][ T2816] hfs_brec_insert+0x723/0xbd0 [ 57.702080][ T2816] ? __pfx_hfs_brec_insert+0x10/0x10 [ 57.707410][ T2816] __hfs_ext_write_extent+0x2f2/0x4f0 [ 57.712845][ T2816] hfs_ext_write_extent+0x154/0x1d0 [ 57.718058][ T2816] ? __pfx_hfs_ext_write_extent+0x10/0x10 [ 57.723873][ T2816] hfs_write_inode+0xbc/0xec0 [ 57.728617][ T2816] ? __pfx_hfs_write_inode+0x10/0x10 [ 57.733982][ T2816] ? __writeback_single_inode+0x4d1/0x10b0 [ 57.739884][ T2816] ? do_raw_spin_unlock+0x13c/0x8b0 [ 57.745087][ T2816] __writeback_single_inode+0x6b9/0x10b0 [ 57.750767][ T2816] writeback_sb_inodes+0x905/0x1260 [ 57.756013][ T2816] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 57.761720][ T2816] ? do_raw_spin_lock+0x14f/0x370 [ 57.766788][ T2816] ? __lock_acquire+0x1346/0x1fd0 [ 57.771926][ T2816] ? rcu_is_watching+0x15/0xb0 [ 57.776745][ T2816] ? queue_io+0x3d9/0x5a0 [ 57.781223][ T2816] wb_writeback+0x457/0xce0 [ 57.785771][ T2816] ? __pfx_wb_writeback+0x10/0x10 [ 57.790867][ T2816] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 57.796870][ T2816] wb_workfn+0x410/0x1090 [ 57.801293][ T2816] ? __pfx_wb_workfn+0x10/0x10 [ 57.806078][ T2816] ? __pfx_lock_acquire+0x10/0x10 [ 57.811190][ T2816] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 57.817190][ T2816] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 57.823601][ T2816] ? process_scheduled_works+0x91b/0x17c0 [ 57.829331][ T2816] process_scheduled_works+0xa10/0x17c0 [ 57.834980][ T2816] ? __pfx_process_scheduled_works+0x10/0x10 [ 57.841026][ T2816] ? assign_work+0x364/0x3d0 [ 57.845635][ T2816] worker_thread+0x86d/0xd70 [ 57.850300][ T2816] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 57.856211][ T2816] ? __kthread_parkme+0x169/0x1d0 [ 57.861310][ T2816] ? __pfx_worker_thread+0x10/0x10 [ 57.866436][ T2816] kthread+0x2f0/0x390 [ 57.870562][ T2816] ? __pfx_worker_thread+0x10/0x10 [ 57.875687][ T2816] ? __pfx_kthread+0x10/0x10 [ 57.880351][ T2816] ret_from_fork+0x4b/0x80 [ 57.884786][ T2816] ? __pfx_kthread+0x10/0x10 [ 57.889377][ T2816] ret_from_fork_asm+0x1a/0x30 [ 57.894212][ T2816] [ 57.898021][ T2816] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 57.905289][ T2816] CPU: 1 PID: 2816 Comm: kworker/u8:9 Not tainted 6.9.0-rc7-syzkaller-00056-g45db3ab70092 #0 [ 57.915517][ T2816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 57.925570][ T2816] Workqueue: writeback wb_workfn (flush-7:0) [ 57.931571][ T2816] Call Trace: [ 57.934846][ T2816] [ 57.937770][ T2816] dump_stack_lvl+0x241/0x360 [ 57.942450][ T2816] ? __pfx_dump_stack_lvl+0x10/0x10 [ 57.947649][ T2816] ? __pfx__printk+0x10/0x10 [ 57.952236][ T2816] ? _printk+0xd5/0x120 [ 57.956393][ T2816] ? vscnprintf+0x5d/0x90 [ 57.960718][ T2816] panic+0x349/0x860 [ 57.964804][ T2816] ? __warn+0x172/0x4e0 [ 57.968965][ T2816] ? __pfx_panic+0x10/0x10 [ 57.973373][ T2816] ? show_trace_log_lvl+0x4e6/0x520 [ 57.978668][ T2816] ? ret_from_fork_asm+0x1a/0x30 [ 57.983638][ T2816] __warn+0x346/0x4e0 [ 57.987620][ T2816] ? hfs_bnode_create+0x3b6/0x440 [ 57.992639][ T2816] report_bug+0x2b3/0x500 [ 57.996967][ T2816] ? hfs_bnode_create+0x3b6/0x440 [ 58.001990][ T2816] handle_bug+0x3e/0x70 [ 58.006224][ T2816] exc_invalid_op+0x1a/0x50 [ 58.010762][ T2816] asm_exc_invalid_op+0x1a/0x20 [ 58.015972][ T2816] RIP: 0010:hfs_bnode_create+0x3b6/0x440 [ 58.021606][ T2816] Code: 44 89 e6 e8 cc da f5 08 e9 78 fd ff ff e8 c2 69 17 ff 4c 89 ff e8 6a a7 03 09 48 c7 c7 20 4b e1 8b 44 89 e6 e8 ab da 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 [ 58.041295][ T2816] RSP: 0018:ffffc9000a9bec58 EFLAGS: 00010246 [ 58.047360][ T2816] RAX: 000000000000001f RBX: ffff888019693900 RCX: eca355565354ae00 [ 58.055327][ T2816] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 58.063295][ T2816] RBP: 0000000000000000 R08: ffffffff8176adac R09: 1ffff92001537d2c [ 58.071273][ T2816] R10: dffffc0000000000 R11: fffff52001537d2d R12: 0000000000000000 [ 58.079274][ T2816] R13: dffffc0000000000 R14: ffff888069bb6000 R15: ffff888069bb60e0 [ 58.087279][ T2816] ? __wake_up_klogd+0xcc/0x110 [ 58.092144][ T2816] ? hfs_bnode_create+0x3b5/0x440 [ 58.097165][ T2816] hfs_bmap_alloc+0x5a6/0x650 [ 58.101843][ T2816] ? __pfx_hfs_bmap_alloc+0x10/0x10 [ 58.107041][ T2816] hfs_btree_inc_height+0x11e/0xd20 [ 58.112263][ T2816] ? hfs_brec_insert+0x6e0/0xbd0 [ 58.117200][ T2816] ? __pfx_hfs_btree_inc_height+0x10/0x10 [ 58.122917][ T2816] ? do_raw_spin_unlock+0x13c/0x8b0 [ 58.128122][ T2816] ? hfs_bnode_put+0x1c4/0x380 [ 58.132888][ T2816] hfs_brec_insert+0x723/0xbd0 [ 58.137664][ T2816] ? __pfx_hfs_brec_insert+0x10/0x10 [ 58.142954][ T2816] __hfs_ext_write_extent+0x2f2/0x4f0 [ 58.148327][ T2816] hfs_ext_write_extent+0x154/0x1d0 [ 58.153525][ T2816] ? __pfx_hfs_ext_write_extent+0x10/0x10 [ 58.159259][ T2816] hfs_write_inode+0xbc/0xec0 [ 58.163947][ T2816] ? __pfx_hfs_write_inode+0x10/0x10 [ 58.169319][ T2816] ? __writeback_single_inode+0x4d1/0x10b0 [ 58.175135][ T2816] ? do_raw_spin_unlock+0x13c/0x8b0 [ 58.180337][ T2816] __writeback_single_inode+0x6b9/0x10b0 [ 58.185972][ T2816] writeback_sb_inodes+0x905/0x1260 [ 58.191232][ T2816] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 58.196868][ T2816] ? do_raw_spin_lock+0x14f/0x370 [ 58.201913][ T2816] ? __lock_acquire+0x1346/0x1fd0 [ 58.206966][ T2816] ? rcu_is_watching+0x15/0xb0 [ 58.211725][ T2816] ? queue_io+0x3d9/0x5a0 [ 58.216059][ T2816] wb_writeback+0x457/0xce0 [ 58.220572][ T2816] ? __pfx_wb_writeback+0x10/0x10 [ 58.225596][ T2816] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 58.231586][ T2816] wb_workfn+0x410/0x1090 [ 58.235930][ T2816] ? __pfx_wb_workfn+0x10/0x10 [ 58.240696][ T2816] ? __pfx_lock_acquire+0x10/0x10 [ 58.245718][ T2816] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 58.251697][ T2816] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 58.258027][ T2816] ? process_scheduled_works+0x91b/0x17c0 [ 58.263772][ T2816] process_scheduled_works+0xa10/0x17c0 [ 58.269369][ T2816] ? __pfx_process_scheduled_works+0x10/0x10 [ 58.275365][ T2816] ? assign_work+0x364/0x3d0 [ 58.279956][ T2816] worker_thread+0x86d/0xd70 [ 58.284549][ T2816] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 58.291052][ T2816] ? __kthread_parkme+0x169/0x1d0 [ 58.296071][ T2816] ? __pfx_worker_thread+0x10/0x10 [ 58.301178][ T2816] kthread+0x2f0/0x390 [ 58.305243][ T2816] ? __pfx_worker_thread+0x10/0x10 [ 58.310360][ T2816] ? __pfx_kthread+0x10/0x10 [ 58.314952][ T2816] ret_from_fork+0x4b/0x80 [ 58.319363][ T2816] ? __pfx_kthread+0x10/0x10 [ 58.323954][ T2816] ret_from_fork_asm+0x1a/0x30 [ 58.328728][ T2816] [ 58.332069][ T2816] Kernel Offset: disabled [ 58.336423][ T2816] Rebooting in 86400 seconds..