./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1555826917 <...> Warning: Permanently added '10.128.10.3' (ED25519) to the list of known hosts. execve("./syz-executor1555826917", ["./syz-executor1555826917"], 0x7ffdb589cc20 /* 10 vars */) = 0 brk(NULL) = 0x55558db3e000 brk(0x55558db3ed00) = 0x55558db3ed00 arch_prctl(ARCH_SET_FS, 0x55558db3e380) = 0 set_tid_address(0x55558db3e650) = 5776 set_robust_list(0x55558db3e660, 24) = 0 rseq(0x55558db3eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1555826917", 4096) = 28 getrandom("\x02\x12\x28\xb4\x81\x03\x00\xec", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558db3ed00 brk(0x55558db5fd00) = 0x55558db5fd00 brk(0x55558db60000) = 0x55558db60000 mprotect(0x7fae80eec000, 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 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5777 attached , child_tidptr=0x55558db3e650) = 5777 [pid 5777] set_robust_list(0x55558db3e660, 24) = 0 [pid 5777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5777] setpgid(0, 0) = 0 [pid 5777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5777] write(3, "1000", 4executing program ) = 4 [pid 5777] close(3) = 0 [pid 5777] write(1, "executing program\n", 18) = 18 [pid 5777] memfd_create("syzkaller", 0) = 3 [pid 5777] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fae78a00000 [pid 5777] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 5777] munmap(0x7fae78a00000, 138412032) = 0 [pid 5777] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5777] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5777] close(3) = 0 [pid 5777] close(4) = 0 [pid 5777] mkdir("./file3", 0777) = 0 [ 178.165248][ T5777] loop0: detected capacity change from 0 to 64 [ 178.213843][ T5777] ===================================================== [ 178.221167][ T5777] BUG: KMSAN: uninit-value in hfs_cat_keycmp+0x154/0x210 [ 178.228306][ T5777] hfs_cat_keycmp+0x154/0x210 [ 178.233180][ T5777] __hfs_brec_find+0x254/0x830 [ 178.238142][ T5777] hfs_brec_find+0x436/0x980 [ 178.242971][ T5777] hfs_brec_read+0x3f/0x1a0 [ 178.247632][ T5777] hfs_cat_find_brec+0xe6/0x400 [ 178.252735][ T5777] hfs_fill_super+0x6a3/0xad0 [ 178.257590][ T5777] get_tree_bdev_flags+0x6ec/0x910 [ 178.262915][ T5777] get_tree_bdev+0x37/0x50 [ 178.267512][ T5777] hfs_get_tree+0x34/0x40 [ 178.272038][ T5777] vfs_get_tree+0xb1/0x5a0 [ 178.276634][ T5777] do_new_mount+0x71f/0x15e0 [ 178.281444][ T5777] path_mount+0x742/0x1f10 [ 178.286118][ T5777] __se_sys_mount+0x722/0x810 [ 178.290976][ T5777] __x64_sys_mount+0xe4/0x150 [ 178.295800][ T5777] x64_sys_call+0x39bf/0x3c30 [ 178.300804][ T5777] do_syscall_64+0xcd/0x1e0 [ 178.305487][ T5777] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 178.311663][ T5777] [ 178.314059][ T5777] Uninit was created at: [ 178.318448][ T5777] __kmalloc_noprof+0x923/0x1230 [ 178.323612][ T5777] hfs_find_init+0x91/0x250 [ 178.328332][ T5777] hfs_fill_super+0x63e/0xad0 [ 178.333274][ T5777] get_tree_bdev_flags+0x6ec/0x910 [ 178.338571][ T5777] get_tree_bdev+0x37/0x50 [ 178.343186][ T5777] hfs_get_tree+0x34/0x40 [ 178.347685][ T5777] vfs_get_tree+0xb1/0x5a0 [ 178.352323][ T5777] do_new_mount+0x71f/0x15e0 [ 178.357045][ T5777] path_mount+0x742/0x1f10 [ 178.361715][ T5777] __se_sys_mount+0x722/0x810 [ 178.366538][ T5777] __x64_sys_mount+0xe4/0x150 [ 178.371389][ T5777] x64_sys_call+0x39bf/0x3c30 [ 178.376251][ T5777] do_syscall_64+0xcd/0x1e0 [ 178.380927][ T5777] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 178.387015][ T5777] [ 178.389406][ T5777] CPU: 0 UID: 0 PID: 5777 Comm: syz-executor155 Not tainted 6.13.0-rc2-syzkaller-00292-ga446e965a188 #0 [ 178.400704][ T5777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 178.410938][ T5777] ===================================================== [ 178.417917][ T5777] Disabling lock debugging due to kernel taint [ 178.424272][ T5777] Kernel panic - not syncing: kmsan.panic set ... [ 178.430804][ T5777] CPU: 0 UID: 0 PID: 5777 Comm: syz-executor155 Tainted: G B 6.13.0-rc2-syzkaller-00292-ga446e965a188 #0 [ 178.443543][ T5777] Tainted: [B]=BAD_PAGE [ 178.447784][ T5777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 178.457919][ T5777] Call Trace: [ 178.461257][ T5777] [ 178.464235][ T5777] dump_stack_lvl+0x216/0x2d0 [ 178.469026][ T5777] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.474937][ T5777] dump_stack+0x1e/0x24 [ 178.479200][ T5777] panic+0x4e2/0xcf0 [ 178.483200][ T5777] ? kmsan_get_metadata+0x101/0x1c0 [ 178.488531][ T5777] kmsan_report+0x2c7/0x2d0 [ 178.493180][ T5777] ? _raw_spin_lock_irqsave+0x35/0xc0 [ 178.498662][ T5777] ? kmsan_get_metadata+0x13e/0x1c0 [ 178.503950][ T5777] ? __msan_warning+0x95/0x120 [ 178.508829][ T5777] ? hfs_cat_keycmp+0x154/0x210 [ 178.513780][ T5777] ? __hfs_brec_find+0x254/0x830 [ 178.518833][ T5777] ? hfs_brec_find+0x436/0x980 [ 178.523678][ T5777] ? hfs_brec_read+0x3f/0x1a0 [ 178.528437][ T5777] ? hfs_cat_find_brec+0xe6/0x400 [ 178.533577][ T5777] ? hfs_fill_super+0x6a3/0xad0 [ 178.538611][ T5777] ? get_tree_bdev_flags+0x6ec/0x910 [ 178.544014][ T5777] ? get_tree_bdev+0x37/0x50 [ 178.548716][ T5777] ? hfs_get_tree+0x34/0x40 [ 178.553331][ T5777] ? vfs_get_tree+0xb1/0x5a0 [ 178.558036][ T5777] ? do_new_mount+0x71f/0x15e0 [ 178.562885][ T5777] ? path_mount+0x742/0x1f10 [ 178.567618][ T5777] ? __se_sys_mount+0x722/0x810 [ 178.572617][ T5777] ? __x64_sys_mount+0xe4/0x150 [ 178.577555][ T5777] ? x64_sys_call+0x39bf/0x3c30 [ 178.582525][ T5777] ? do_syscall_64+0xcd/0x1e0 [ 178.587289][ T5777] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 178.593479][ T5777] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.599384][ T5777] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 178.605305][ T5777] ? stack_depot_save_flags+0x6db/0x750 [ 178.610976][ T5777] ? kmsan_get_metadata+0x13e/0x1c0 [ 178.616272][ T5777] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 178.622726][ T5777] ? kmsan_get_metadata+0x13e/0x1c0 [ 178.628024][ T5777] ? kmsan_internal_memmove_metadata+0x91/0x230 [ 178.634394][ T5777] ? kmsan_get_metadata+0x13e/0x1c0 [ 178.639684][ T5777] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.645605][ T5777] __msan_warning+0x95/0x120 [ 178.650317][ T5777] hfs_cat_keycmp+0x154/0x210 [ 178.655096][ T5777] __hfs_brec_find+0x254/0x830 [ 178.659997][ T5777] ? __pfx_hfs_cat_keycmp+0x10/0x10 [ 178.665361][ T5777] hfs_brec_find+0x436/0x980 [ 178.670080][ T5777] hfs_brec_read+0x3f/0x1a0 [ 178.674721][ T5777] hfs_cat_find_brec+0xe6/0x400 [ 178.679674][ T5777] ? mutex_lock+0x38/0x60 [ 178.684119][ T5777] ? hfs_find_init+0x224/0x250 [ 178.689004][ T5777] hfs_fill_super+0x6a3/0xad0 [ 178.693804][ T5777] ? sb_set_blocksize+0x12a/0x160 [ 178.698956][ T5777] get_tree_bdev_flags+0x6ec/0x910 [ 178.704214][ T5777] ? __pfx_hfs_fill_super+0x10/0x10 [ 178.709618][ T5777] ? __pfx_hfs_fill_super+0x10/0x10 [ 178.714980][ T5777] get_tree_bdev+0x37/0x50 [ 178.719583][ T5777] hfs_get_tree+0x34/0x40 [ 178.724024][ T5777] vfs_get_tree+0xb1/0x5a0 [ 178.728558][ T5777] ? mount_capable+0x97/0x120 [ 178.733344][ T5777] do_new_mount+0x71f/0x15e0 [ 178.738047][ T5777] ? kmsan_get_metadata+0x13e/0x1c0 [ 178.743412][ T5777] path_mount+0x742/0x1f10 [ 178.747950][ T5777] ? user_path_at+0x374/0x3e0 [ 178.752741][ T5777] __se_sys_mount+0x722/0x810 [ 178.757517][ T5777] ? ptrace_notify+0x263/0x320 [ 178.762404][ T5777] __x64_sys_mount+0xe4/0x150 [ 178.767177][ T5777] x64_sys_call+0x39bf/0x3c30 [ 178.772000][ T5777] do_syscall_64+0xcd/0x1e0 [ 178.776644][ T5777] ? clear_bhb_loop+0x25/0x80 [ 178.781445][ T5777] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 178.787464][ T5777] RIP: 0033:0x7fae80e7a06a [ 178.791951][ T5777] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 178.811666][ T5777] RSP: 002b:00007ffc45f99d88 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 178.820221][ T5777] RAX: ffffffffffffffda RBX: 00007ffc45f99da0 RCX: 00007fae80e7a06a [ 178.828352][ T5777] RDX: 0000000020000180 RSI: 00000000200003c0 RDI: 00007ffc45f99da0 [ 178.836451][ T5777] RBP: 0000000000000004 R08: 00007ffc45f99de0 R09: 0000000000000296 [ 178.844504][ T5777] R10: 0000000002810880 R11: 0000000000000286 R12: 0000000002810880 [ 178.852551][ T5777] R13: 00007ffc45f99de0 R14: 0000000000000003 R15: 0000000000008000 [ 178.860609][ T5777] [ 178.863957][ T5777] Kernel Offset: disabled [ 178.868344][ T5777] Rebooting in 86400 seconds..