./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2472733243 <...> Warning: Permanently added '10.128.0.23' (ED25519) to the list of known hosts. execve("./syz-executor2472733243", ["./syz-executor2472733243"], 0x7fff55d66d00 /* 10 vars */) = 0 brk(NULL) = 0x5555562e4000 brk(0x5555562e4d00) = 0x5555562e4d00 arch_prctl(ARCH_SET_FS, 0x5555562e4380) = 0 set_tid_address(0x5555562e4650) = 5012 set_robust_list(0x5555562e4660, 24) = 0 rseq(0x5555562e4ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2472733243", 4096) = 28 getrandom("\x66\xf1\xbb\x85\x84\x85\x24\x6a", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555562e4d00 brk(0x555556305d00) = 0x555556305d00 brk(0x555556306000) = 0x555556306000 mprotect(0x7f726d59c000, 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 5013 attached , child_tidptr=0x5555562e4650) = 5013 [pid 5013] set_robust_list(0x5555562e4660, 24) = 0 [pid 5013] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5013] setpgid(0, 0) = 0 [pid 5013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5013] write(3, "1000", 4) = 4 [pid 5013] close(3) = 0 [pid 5013] memfd_create("syzkaller", 0) = 3 [pid 5013] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7265000000 [pid 5013] 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"..., 524288) = 524288 [pid 5013] munmap(0x7f7265000000, 138412032) = 0 [pid 5013] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5013] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5013] close(3) = 0 [pid 5013] close(4) = 0 [pid 5013] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5013] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "") = 0 [pid 5013] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5013] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5013] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 146.228846][ T5013] loop0: detected capacity change from 0 to 1024 [ 146.281269][ T5013] ===================================================== [ 146.288592][ T5013] BUG: KMSAN: uninit-value in hfsplus_attr_bin_cmp_key+0xf1/0x190 [ 146.296835][ T5013] hfsplus_attr_bin_cmp_key+0xf1/0x190 [ 146.302637][ T5013] hfs_find_rec_by_key+0xb0/0x240 [ 146.307888][ T5013] __hfsplus_brec_find+0x26b/0x7b0 [ 146.313424][ T5013] hfsplus_brec_find+0x445/0x970 [ 146.318592][ T5013] hfsplus_find_attr+0x30c/0x390 [ 146.323865][ T5013] hfsplus_attr_exists+0x1c6/0x260 [ 146.329167][ T5013] __hfsplus_setxattr+0x510/0x3580 [ 146.334575][ T5013] hfsplus_setxattr+0x129/0x1e0 [ 146.339573][ T5013] hfsplus_trusted_setxattr+0x55/0x70 [ 146.345240][ T5013] __vfs_setxattr+0x7aa/0x8b0 [ 146.350286][ T5013] __vfs_setxattr_noperm+0x24f/0xa30 [ 146.355749][ T5013] __vfs_setxattr_locked+0x441/0x480 [ 146.361361][ T5013] vfs_setxattr+0x294/0x650 [ 146.366041][ T5013] setxattr+0x45f/0x540 [ 146.370557][ T5013] path_setxattr+0x1f5/0x3c0 [ 146.375304][ T5013] __x64_sys_setxattr+0xf7/0x180 [ 146.380513][ T5013] do_syscall_64+0xcf/0x1e0 [ 146.385194][ T5013] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 146.391390][ T5013] [ 146.393800][ T5013] Uninit was created at: [ 146.398267][ T5013] __kmalloc+0x919/0xf80 [ 146.402835][ T5013] hfsplus_find_init+0x91/0x250 [ 146.407904][ T5013] hfsplus_attr_exists+0xde/0x260 [ 146.413334][ T5013] __hfsplus_setxattr+0x510/0x3580 [ 146.418596][ T5013] hfsplus_setxattr+0x129/0x1e0 [ 146.423733][ T5013] hfsplus_trusted_setxattr+0x55/0x70 [ 146.429253][ T5013] __vfs_setxattr+0x7aa/0x8b0 [ 146.434143][ T5013] __vfs_setxattr_noperm+0x24f/0xa30 [ 146.439591][ T5013] __vfs_setxattr_locked+0x441/0x480 [ 146.445149][ T5013] vfs_setxattr+0x294/0x650 [ 146.449829][ T5013] setxattr+0x45f/0x540 [ 146.454255][ T5013] path_setxattr+0x1f5/0x3c0 [ 146.459102][ T5013] __x64_sys_setxattr+0xf7/0x180 [ 146.464259][ T5013] do_syscall_64+0xcf/0x1e0 [ 146.468930][ T5013] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 146.475177][ T5013] [ 146.477614][ T5013] CPU: 0 PID: 5013 Comm: syz-executor247 Not tainted 6.8.0-rc6-syzkaller-00250-g04b8076df253 #0 [ 146.488361][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 146.498620][ T5013] ===================================================== [ 146.505812][ T5013] Disabling lock debugging due to kernel taint [ 146.512131][ T5013] Kernel panic - not syncing: kmsan.panic set ... [ 146.518621][ T5013] CPU: 0 PID: 5013 Comm: syz-executor247 Tainted: G B 6.8.0-rc6-syzkaller-00250-g04b8076df253 #0 [ 146.530619][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 146.540779][ T5013] Call Trace: [ 146.544136][ T5013] [ 146.547138][ T5013] dump_stack_lvl+0x1bf/0x240 [ 146.552001][ T5013] dump_stack+0x1e/0x20 [ 146.556322][ T5013] panic+0x4de/0xc90 [ 146.560445][ T5013] kmsan_report+0x2d0/0x2d0 [ 146.565138][ T5013] ? kmsan_get_metadata+0x146/0x1c0 [ 146.570524][ T5013] ? __msan_warning+0x96/0x120 [ 146.575404][ T5013] ? hfsplus_attr_bin_cmp_key+0xf1/0x190 [ 146.581209][ T5013] ? hfs_find_rec_by_key+0xb0/0x240 [ 146.586534][ T5013] ? __hfsplus_brec_find+0x26b/0x7b0 [ 146.591991][ T5013] ? hfsplus_brec_find+0x445/0x970 [ 146.597296][ T5013] ? hfsplus_find_attr+0x30c/0x390 [ 146.602516][ T5013] ? hfsplus_attr_exists+0x1c6/0x260 [ 146.607967][ T5013] ? __hfsplus_setxattr+0x510/0x3580 [ 146.613391][ T5013] ? hfsplus_setxattr+0x129/0x1e0 [ 146.618533][ T5013] ? hfsplus_trusted_setxattr+0x55/0x70 [ 146.624230][ T5013] ? __vfs_setxattr+0x7aa/0x8b0 [ 146.629174][ T5013] ? __vfs_setxattr_noperm+0x24f/0xa30 [ 146.634754][ T5013] ? __vfs_setxattr_locked+0x441/0x480 [ 146.640375][ T5013] ? vfs_setxattr+0x294/0x650 [ 146.645152][ T5013] ? setxattr+0x45f/0x540 [ 146.649639][ T5013] ? path_setxattr+0x1f5/0x3c0 [ 146.654597][ T5013] ? __x64_sys_setxattr+0xf7/0x180 [ 146.659899][ T5013] ? do_syscall_64+0xcf/0x1e0 [ 146.664719][ T5013] ? entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 146.671035][ T5013] ? kmsan_get_metadata+0x146/0x1c0 [ 146.676392][ T5013] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 146.682326][ T5013] ? hfsplus_bnode_read_u16+0x3e/0x2b0 [ 146.687988][ T5013] ? filter_irq_stacks+0x60/0x1a0 [ 146.693143][ T5013] ? kmsan_get_metadata+0x146/0x1c0 [ 146.698519][ T5013] ? kmsan_internal_memmove_metadata+0x91/0x230 [ 146.704952][ T5013] ? kmsan_get_metadata+0x146/0x1c0 [ 146.710299][ T5013] ? kmsan_get_metadata+0x146/0x1c0 [ 146.715620][ T5013] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 146.721591][ T5013] __msan_warning+0x96/0x120 [ 146.726272][ T5013] hfsplus_attr_bin_cmp_key+0xf1/0x190 [ 146.731866][ T5013] hfs_find_rec_by_key+0xb0/0x240 [ 146.737115][ T5013] ? hfsplus_destroy_attr_tree_cache+0x40/0x40 [ 146.743441][ T5013] __hfsplus_brec_find+0x26b/0x7b0 [ 146.748758][ T5013] ? hfs_find_1st_rec_by_cnid+0x3f0/0x3f0 [ 146.754640][ T5013] hfsplus_brec_find+0x445/0x970 [ 146.759767][ T5013] ? hfs_find_1st_rec_by_cnid+0x3f0/0x3f0 [ 146.765663][ T5013] hfsplus_find_attr+0x30c/0x390 [ 146.770794][ T5013] hfsplus_attr_exists+0x1c6/0x260 [ 146.776065][ T5013] __hfsplus_setxattr+0x510/0x3580 [ 146.781287][ T5013] ? stack_depot_save_flags+0x665/0x6e0 [ 146.787030][ T5013] ? kmsan_get_metadata+0x146/0x1c0 [ 146.792345][ T5013] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 146.798803][ T5013] ? kmsan_internal_poison_memory+0x7d/0x90 [ 146.804862][ T5013] ? kmsan_internal_poison_memory+0x49/0x90 [ 146.810904][ T5013] ? kmsan_slab_alloc+0xdd/0x150 [ 146.815987][ T5013] ? kmalloc_trace+0x538/0xb60 [ 146.820865][ T5013] ? hfsplus_setxattr+0x74/0x1e0 [ 146.825914][ T5013] ? hfsplus_trusted_setxattr+0x55/0x70 [ 146.831615][ T5013] ? __vfs_setxattr+0x7aa/0x8b0 [ 146.836573][ T5013] ? __vfs_setxattr_noperm+0x24f/0xa30 [ 146.842155][ T5013] ? __vfs_setxattr_locked+0x441/0x480 [ 146.847779][ T5013] ? vfs_setxattr+0x294/0x650 [ 146.852581][ T5013] ? setxattr+0x45f/0x540 [ 146.857090][ T5013] ? path_setxattr+0x1f5/0x3c0 [ 146.862035][ T5013] ? __x64_sys_setxattr+0xf7/0x180 [ 146.867306][ T5013] ? do_syscall_64+0xcf/0x1e0 [ 146.872138][ T5013] ? entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 146.878384][ T5013] ? kmsan_get_metadata+0x146/0x1c0 [ 146.883761][ T5013] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 146.890163][ T5013] ? kmsan_get_metadata+0x146/0x1c0 [ 146.895503][ T5013] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 146.901492][ T5013] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 146.907472][ T5013] ? kmsan_get_metadata+0x146/0x1c0 [ 146.912824][ T5013] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 146.918766][ T5013] ? kmsan_get_metadata+0x146/0x1c0 [ 146.924131][ T5013] hfsplus_setxattr+0x129/0x1e0 [ 146.929095][ T5013] hfsplus_trusted_setxattr+0x55/0x70 [ 146.934592][ T5013] ? hfsplus_trusted_getxattr+0x60/0x60 [ 146.940297][ T5013] __vfs_setxattr+0x7aa/0x8b0 [ 146.945122][ T5013] __vfs_setxattr_noperm+0x24f/0xa30 [ 146.950623][ T5013] __vfs_setxattr_locked+0x441/0x480 [ 146.956081][ T5013] vfs_setxattr+0x294/0x650 [ 146.960700][ T5013] setxattr+0x45f/0x540 [ 146.965014][ T5013] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 146.970952][ T5013] ? kmem_cache_free+0x35a/0xa40 [ 146.976069][ T5013] ? user_path_at_empty+0x325/0x390 [ 146.981415][ T5013] ? kmsan_get_metadata+0x146/0x1c0 [ 146.986802][ T5013] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 146.992809][ T5013] path_setxattr+0x1f5/0x3c0 [ 146.997609][ T5013] __x64_sys_setxattr+0xf7/0x180 [ 147.002746][ T5013] do_syscall_64+0xcf/0x1e0 [ 147.007387][ T5013] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 147.013441][ T5013] RIP: 0033:0x7f726d528d19 [ 147.017991][ T5013] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 147.037806][ T5013] RSP: 002b:00007ffe9dbb0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc [ 147.046379][ T5013] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f726d528d19 [ 147.054471][ T5013] RDX: 0000000000000000 RSI: 0000000020000480 RDI: 0000000020000380 [ 147.062611][ T5013] RBP: 00007f726d59c5f0 R08: 0000000000000000 R09: 00005555562e54c0 [ 147.070747][ T5013] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe9dbb0b70 [ 147.078931][ T5013] R13: 00007ffe9dbb0d98 R14: 431bde82d7b634db R15: 00007f726d57103b [ 147.087043][ T5013] [ 147.090428][ T5013] Kernel Offset: disabled [ 147.094808][ T5013] Rebooting in 86400 seconds..