./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3312700971 <...> Warning: Permanently added '10.128.1.141' (ED25519) to the list of known hosts. execve("./syz-executor3312700971", ["./syz-executor3312700971"], 0x7fffa4998c00 /* 10 vars */) = 0 brk(NULL) = 0x55557bee9000 brk(0x55557bee9d00) = 0x55557bee9d00 arch_prctl(ARCH_SET_FS, 0x55557bee9380) = 0 set_tid_address(0x55557bee9650) = 5077 set_robust_list(0x55557bee9660, 24) = 0 rseq(0x55557bee9ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3312700971", 4096) = 28 getrandom("\x12\x4a\xe9\xd1\x01\x61\x89\x24", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557bee9d00 brk(0x55557bf0ad00) = 0x55557bf0ad00 brk(0x55557bf0b000) = 0x55557bf0b000 mprotect(0x7f16b2210000, 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=0x55557bee9650) = 5078 ./strace-static-x86_64: Process 5078 attached [pid 5078] set_robust_list(0x55557bee9660, 24) = 0 [pid 5078] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5078] setsid() = 1 [pid 5078] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5078] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5078] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5078] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5078] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5078] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5078] unshare(CLONE_NEWNS) = 0 [pid 5078] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5078] unshare(CLONE_NEWIPC) = 0 [pid 5078] unshare(CLONE_NEWCGROUP) = 0 [pid 5078] unshare(CLONE_NEWUTS) = 0 [pid 5078] unshare(CLONE_SYSVSEM) = 0 [pid 5078] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "16777216", 8) = 8 [pid 5078] close(3) = 0 [pid 5078] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "536870912", 9) = 9 [pid 5078] close(3) = 0 [pid 5078] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "1024", 4) = 4 [pid 5078] close(3) = 0 [pid 5078] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "8192", 4) = 4 [pid 5078] close(3) = 0 [pid 5078] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "1024", 4) = 4 [pid 5078] close(3) = 0 [pid 5078] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "1024", 4) = 4 [pid 5078] close(3) = 0 [pid 5078] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5078] close(3) = 0 [pid 5078] getpid() = 1 [pid 5078] 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 [ 56.217350][ T992] RSP: 0018:ffffc9000465ec38 EFLAGS: 00010246 [ 56.223407][ T992] RAX: 000000000000001f RBX: ffff88801a2c4700 RCX: 365021f27806e200 [ 56.231443][ T992] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 56.239473][ T992] RBP: 0000000000000000 R08: ffffffff8176a0fc R09: 1ffff920008cbd28 [ 56.247494][ T992] R10: dffffc0000000000 R11: fffff520008cbd29 R12: 0000000000000000 [ 56.255508][ T992] R13: dffffc0000000000 R14: ffff888023c28000 R15: ffff888023c280e0 [ 56.263495][ T992] FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 56.272470][ T992] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.279086][ T992] CR2: 00000000005fdeb8 CR3: 0000000023ef0000 CR4: 00000000003506f0 [ 56.287124][ T992] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.295121][ T992] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.303083][ T992] Call Trace: [ 56.306408][ T992] [ 56.309346][ T992] ? __warn+0x163/0x4e0 [ 56.313489][ T992] ? hfs_bnode_create+0x3b6/0x440 [ 56.318543][ T992] ? report_bug+0x2b3/0x500 [ 56.323065][ T992] ? hfs_bnode_create+0x3b6/0x440 [ 56.328134][ T992] ? handle_bug+0x3e/0x70 [ 56.332475][ T992] ? exc_invalid_op+0x1a/0x50 [ 56.337211][ T992] ? asm_exc_invalid_op+0x1a/0x20 [ 56.342244][ T992] ? __wake_up_klogd+0xcc/0x110 [ 56.347154][ T992] ? hfs_bnode_create+0x3b6/0x440 [ 56.352183][ T992] ? hfs_bnode_create+0x3b5/0x440 [ 56.357245][ T992] hfs_bmap_alloc+0x5a6/0x650 [ 56.361931][ T992] ? __pfx_hfs_bmap_alloc+0x10/0x10 [ 56.367200][ T992] hfs_btree_inc_height+0x11e/0xd20 [ 56.372419][ T992] ? hfs_brec_insert+0x6e0/0xbd0 [ 56.377402][ T992] ? __pfx_hfs_btree_inc_height+0x10/0x10 [ 56.383142][ T992] ? do_raw_spin_unlock+0x13c/0x8b0 [ 56.388391][ T992] ? hfs_bnode_put+0x1c4/0x380 [ 56.393167][ T992] hfs_brec_insert+0x723/0xbd0 [ 56.397981][ T992] ? __pfx_hfs_brec_insert+0x10/0x10 [ 56.403276][ T992] __hfs_ext_write_extent+0x2f2/0x4f0 [ 56.408702][ T992] hfs_ext_write_extent+0x154/0x1d0 [ 56.413903][ T992] ? __pfx_hfs_ext_write_extent+0x10/0x10 [ 56.419671][ T992] hfs_write_inode+0xbc/0xec0 [ 56.424358][ T992] ? __pfx_hfs_write_inode+0x10/0x10 [ 56.429688][ T992] ? __writeback_single_inode+0x4d1/0x10b0 [ 56.435539][ T992] ? do_raw_spin_unlock+0x13c/0x8b0 [ 56.440750][ T992] __writeback_single_inode+0x6b9/0x10b0 [ 56.446421][ T992] writeback_sb_inodes+0x99c/0x1380 [ 56.451655][ T992] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 56.457318][ T992] ? do_raw_spin_lock+0x14f/0x370 [ 56.462352][ T992] ? __lock_acquire+0x1346/0x1fd0 [ 56.467508][ T992] ? rcu_is_watching+0x15/0xb0 [ 56.472285][ T992] ? queue_io+0x3d9/0x5a0 [ 56.476651][ T992] wb_writeback+0x481/0xd40 [ 56.481180][ T992] ? queue_io+0x331/0x5a0 [ 56.485576][ T992] ? __pfx_wb_writeback+0x10/0x10 [ 56.490628][ T992] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 56.496702][ T992] wb_workfn+0x410/0x1090 [ 56.501058][ T992] ? __pfx_wb_workfn+0x10/0x10 [ 56.505870][ T992] ? __pfx_lock_acquire+0x10/0x10 [ 56.510908][ T992] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 56.516923][ T992] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 56.523270][ T992] ? process_scheduled_works+0x945/0x1830 [ 56.529031][ T992] process_scheduled_works+0xa2c/0x1830 [ 56.534620][ T992] ? __pfx_process_scheduled_works+0x10/0x10 [ 56.540592][ T992] ? assign_work+0x364/0x3d0 [ 56.545213][ T992] worker_thread+0x86d/0xd70 [ 56.549818][ T992] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 56.555749][ T992] ? __kthread_parkme+0x169/0x1d0 [ 56.560783][ T992] ? __pfx_worker_thread+0x10/0x10 [ 56.565926][ T992] kthread+0x2f0/0x390 [ 56.570003][ T992] ? __pfx_worker_thread+0x10/0x10 [ 56.575145][ T992] ? __pfx_kthread+0x10/0x10 [ 56.579744][ T992] ret_from_fork+0x4b/0x80 [ 56.584150][ T992] ? __pfx_kthread+0x10/0x10 [ 56.588780][ T992] ret_from_fork_asm+0x1a/0x30 [ 56.593564][ T992] [ 56.596617][ T992] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 56.603896][ T992] CPU: 1 PID: 992 Comm: kworker/u8:5 Not tainted 6.9.0-syzkaller-09429-g61307b7be41a #0 [ 56.613596][ T992] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 56.623644][ T992] Workqueue: writeback wb_workfn (flush-7:0) [ 56.629634][ T992] Call Trace: [ 56.632903][ T992] [ 56.635827][ T992] dump_stack_lvl+0x241/0x360 [ 56.640503][ T992] ? __pfx_dump_stack_lvl+0x10/0x10 [ 56.645700][ T992] ? __pfx__printk+0x10/0x10 [ 56.650279][ T992] ? _printk+0xd5/0x120 [ 56.654435][ T992] ? vscnprintf+0x5d/0x90 [ 56.658761][ T992] panic+0x349/0x860 [ 56.662667][ T992] ? __warn+0x172/0x4e0 [ 56.666831][ T992] ? __pfx_panic+0x10/0x10 [ 56.671242][ T992] ? show_trace_log_lvl+0x4e6/0x520 [ 56.676453][ T992] ? ret_from_fork_asm+0x1a/0x30 [ 56.681397][ T992] __warn+0x346/0x4e0 [ 56.685381][ T992] ? hfs_bnode_create+0x3b6/0x440 [ 56.690401][ T992] report_bug+0x2b3/0x500 [ 56.694725][ T992] ? hfs_bnode_create+0x3b6/0x440 [ 56.699742][ T992] handle_bug+0x3e/0x70 [ 56.703890][ T992] exc_invalid_op+0x1a/0x50 [ 56.708406][ T992] asm_exc_invalid_op+0x1a/0x20 [ 56.713269][ T992] RIP: 0010:hfs_bnode_create+0x3b6/0x440 [ 56.718906][ T992] Code: 44 89 e6 e8 6c 3c fd 08 e9 78 fd ff ff e8 a2 18 16 ff 4c 89 ff e8 2a 1e 0b 09 48 c7 c7 c0 8c e1 8b 44 89 e6 e8 4b 3c fd 08 90 <0f> 0b 90 eb af 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 83 fc ff ff 48 [ 56.738509][ T992] RSP: 0018:ffffc9000465ec38 EFLAGS: 00010246 [ 56.744572][ T992] RAX: 000000000000001f RBX: ffff88801a2c4700 RCX: 365021f27806e200 [ 56.752531][ T992] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 56.760494][ T992] RBP: 0000000000000000 R08: ffffffff8176a0fc R09: 1ffff920008cbd28 [ 56.768455][ T992] R10: dffffc0000000000 R11: fffff520008cbd29 R12: 0000000000000000 [ 56.776418][ T992] R13: dffffc0000000000 R14: ffff888023c28000 R15: ffff888023c280e0 [ 56.784392][ T992] ? __wake_up_klogd+0xcc/0x110 [ 56.789251][ T992] ? hfs_bnode_create+0x3b5/0x440 [ 56.794268][ T992] hfs_bmap_alloc+0x5a6/0x650 [ 56.798940][ T992] ? __pfx_hfs_bmap_alloc+0x10/0x10 [ 56.804144][ T992] hfs_btree_inc_height+0x11e/0xd20 [ 56.809342][ T992] ? hfs_brec_insert+0x6e0/0xbd0 [ 56.814292][ T992] ? __pfx_hfs_btree_inc_height+0x10/0x10 [ 56.820026][ T992] ? do_raw_spin_unlock+0x13c/0x8b0 [ 56.825232][ T992] ? hfs_bnode_put+0x1c4/0x380 [ 56.830008][ T992] hfs_brec_insert+0x723/0xbd0 [ 56.834793][ T992] ? __pfx_hfs_brec_insert+0x10/0x10 [ 56.840090][ T992] __hfs_ext_write_extent+0x2f2/0x4f0 [ 56.845463][ T992] hfs_ext_write_extent+0x154/0x1d0 [ 56.850656][ T992] ? __pfx_hfs_ext_write_extent+0x10/0x10 [ 56.856380][ T992] hfs_write_inode+0xbc/0xec0 [ 56.861058][ T992] ? __pfx_hfs_write_inode+0x10/0x10 [ 56.866342][ T992] ? __writeback_single_inode+0x4d1/0x10b0 [ 56.872170][ T992] ? do_raw_spin_unlock+0x13c/0x8b0 [ 56.877383][ T992] __writeback_single_inode+0x6b9/0x10b0 [ 56.883024][ T992] writeback_sb_inodes+0x99c/0x1380 [ 56.888248][ T992] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 56.893877][ T992] ? do_raw_spin_lock+0x14f/0x370 [ 56.898898][ T992] ? __lock_acquire+0x1346/0x1fd0 [ 56.903945][ T992] ? rcu_is_watching+0x15/0xb0 [ 56.908711][ T992] ? queue_io+0x3d9/0x5a0 [ 56.913037][ T992] wb_writeback+0x481/0xd40 [ 56.917540][ T992] ? queue_io+0x331/0x5a0 [ 56.921865][ T992] ? __pfx_wb_writeback+0x10/0x10 [ 56.926881][ T992] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 56.932865][ T992] wb_workfn+0x410/0x1090 [ 56.937201][ T992] ? __pfx_wb_workfn+0x10/0x10 [ 56.941959][ T992] ? __pfx_lock_acquire+0x10/0x10 [ 56.946989][ T992] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 56.952986][ T992] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 56.959326][ T992] ? process_scheduled_works+0x945/0x1830 [ 56.965053][ T992] process_scheduled_works+0xa2c/0x1830 [ 56.970626][ T992] ? __pfx_process_scheduled_works+0x10/0x10 [ 56.976609][ T992] ? assign_work+0x364/0x3d0 [ 56.981203][ T992] worker_thread+0x86d/0xd70 [ 56.985797][ T992] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 56.991693][ T992] ? __kthread_parkme+0x169/0x1d0 [ 56.996714][ T992] ? __pfx_worker_thread+0x10/0x10 [ 57.001814][ T992] kthread+0x2f0/0x390 [ 57.005879][ T992] ? __pfx_worker_thread+0x10/0x10 [ 57.010979][ T992] ? __pfx_kthread+0x10/0x10 [ 57.015563][ T992] ret_from_fork+0x4b/0x80 [ 57.019974][ T992] ? __pfx_kthread+0x10/0x10 [ 57.024557][ T992] ret_from_fork_asm+0x1a/0x30 [ 57.029326][ T992] [ 57.032585][ T992] Kernel Offset: disabled [ 57.036932][ T992] Rebooting in 86400 seconds..