./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor301688502 <...> Warning: Permanently added '10.128.0.132' (ED25519) to the list of known hosts. execve("./syz-executor301688502", ["./syz-executor301688502"], 0x7ffce6f11b00 /* 10 vars */) = 0 brk(NULL) = 0x555561e4f000 brk(0x555561e4fd00) = 0x555561e4fd00 arch_prctl(ARCH_SET_FS, 0x555561e4f380) = 0 set_tid_address(0x555561e4f650) = 5783 set_robust_list(0x555561e4f660, 24) = 0 rseq(0x555561e4fca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor301688502", 4096) = 27 getrandom("\x63\xbe\x74\x4e\xde\xce\xd8\x7e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555561e4fd00 brk(0x555561e70d00) = 0x555561e70d00 brk(0x555561e71000) = 0x555561e71000 mprotect(0x7f08ad351000, 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, child_tidptr=0x555561e4f650) = 5784 ./strace-static-x86_64: Process 5784 attached [pid 5784] set_robust_list(0x555561e4f660, 24) = 0 [pid 5784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5784] setpgid(0, 0) = 0 [pid 5784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5784] write(3, "1000", 4executing program ) = 4 [pid 5784] close(3) = 0 [pid 5784] write(1, "executing program\n", 18) = 18 [pid 5784] memfd_create("syzkaller", 0) = 3 [pid 5784] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f08a4e00000 [pid 5784] 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 5784] munmap(0x7f08a4e00000, 138412032) = 0 [pid 5784] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5784] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5784] close(3) = 0 [pid 5784] close(4) = 0 [pid 5784] mkdir("./file1", 0777) = 0 [ 182.440014][ T5784] loop0: detected capacity change from 0 to 1024 [ 182.477118][ T5784] ===================================================== [ 182.485184][ T5784] BUG: KMSAN: uninit-value in hfsplus_cat_bin_cmp_key+0xf1/0x190 [ 182.493368][ T5784] hfsplus_cat_bin_cmp_key+0xf1/0x190 [ 182.498935][ T5784] hfs_find_rec_by_key+0xb1/0x240 [ 182.504540][ T5784] __hfsplus_brec_find+0x26f/0x7b0 [ 182.509902][ T5784] hfsplus_brec_find+0x445/0x970 [ 182.515157][ T5784] hfsplus_brec_read+0x46/0x1a0 [ 182.520195][ T5784] hfsplus_find_cat+0xdb/0x460 [ 182.525195][ T5784] hfsplus_iget+0x729/0xae0 [ 182.529908][ T5784] hfsplus_fill_super+0x151b/0x2700 [ 182.535877][ T5784] mount_bdev+0x39a/0x520 [ 182.540392][ T5784] hfsplus_mount+0x4d/0x60 [ 182.545100][ T5784] legacy_get_tree+0x114/0x290 [ 182.550060][ T5784] vfs_get_tree+0xb1/0x5a0 [ 182.554942][ T5784] do_new_mount+0x71f/0x15e0 [ 182.559724][ T5784] path_mount+0x742/0x1f10 [ 182.564813][ T5784] __se_sys_mount+0x722/0x810 [ 182.569667][ T5784] __x64_sys_mount+0xe4/0x150 [ 182.574557][ T5784] x64_sys_call+0x255a/0x3ba0 [ 182.579441][ T5784] do_syscall_64+0xcd/0x1e0 [ 182.584268][ T5784] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 182.590356][ T5784] [ 182.592890][ T5784] Uninit was created at: [ 182.597477][ T5784] __kmalloc_noprof+0x661/0xf30 [ 182.602677][ T5784] hfsplus_find_init+0x95/0x1d0 [ 182.607705][ T5784] hfsplus_iget+0x3c4/0xae0 [ 182.612676][ T5784] hfsplus_fill_super+0x151b/0x2700 [ 182.618237][ T5784] mount_bdev+0x39a/0x520 [ 182.622830][ T5784] hfsplus_mount+0x4d/0x60 [ 182.627468][ T5784] legacy_get_tree+0x114/0x290 [ 182.632355][ T5784] vfs_get_tree+0xb1/0x5a0 [ 182.637032][ T5784] do_new_mount+0x71f/0x15e0 [ 182.641720][ T5784] path_mount+0x742/0x1f10 [ 182.646366][ T5784] __se_sys_mount+0x722/0x810 [ 182.651223][ T5784] __x64_sys_mount+0xe4/0x150 [ 182.656107][ T5784] x64_sys_call+0x255a/0x3ba0 [ 182.660966][ T5784] do_syscall_64+0xcd/0x1e0 [ 182.665798][ T5784] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 182.671867][ T5784] [ 182.674428][ T5784] CPU: 1 UID: 0 PID: 5784 Comm: syz-executor301 Not tainted 6.12.0-rc5-syzkaller-00181-g6c52d4da1c74 #0 [ 182.685804][ T5784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 182.696145][ T5784] ===================================================== [ 182.703248][ T5784] Disabling lock debugging due to kernel taint [ 182.709467][ T5784] Kernel panic - not syncing: kmsan.panic set ... [ 182.715970][ T5784] CPU: 1 UID: 0 PID: 5784 Comm: syz-executor301 Tainted: G B 6.12.0-rc5-syzkaller-00181-g6c52d4da1c74 #0 [ 182.728683][ T5784] Tainted: [B]=BAD_PAGE [ 182.732919][ T5784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 182.743073][ T5784] Call Trace: [ 182.746439][ T5784] [ 182.749432][ T5784] dump_stack_lvl+0x216/0x2d0 [ 182.754235][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.760187][ T5784] dump_stack+0x1e/0x30 [ 182.764461][ T5784] panic+0x4e2/0xcf0 [ 182.768467][ T5784] ? kmsan_get_metadata+0x41/0x1c0 [ 182.773731][ T5784] kmsan_report+0x2c7/0x2d0 [ 182.778364][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.783690][ T5784] ? __msan_warning+0x95/0x120 [ 182.788583][ T5784] ? hfsplus_cat_bin_cmp_key+0xf1/0x190 [ 182.794232][ T5784] ? hfs_find_rec_by_key+0xb1/0x240 [ 182.799548][ T5784] ? __hfsplus_brec_find+0x26f/0x7b0 [ 182.804976][ T5784] ? hfsplus_brec_find+0x445/0x970 [ 182.810219][ T5784] ? hfsplus_brec_read+0x46/0x1a0 [ 182.815382][ T5784] ? hfsplus_find_cat+0xdb/0x460 [ 182.820477][ T5784] ? hfsplus_iget+0x729/0xae0 [ 182.825285][ T5784] ? hfsplus_fill_super+0x151b/0x2700 [ 182.830782][ T5784] ? mount_bdev+0x39a/0x520 [ 182.835394][ T5784] ? hfsplus_mount+0x4d/0x60 [ 182.840103][ T5784] ? legacy_get_tree+0x114/0x290 [ 182.845142][ T5784] ? vfs_get_tree+0xb1/0x5a0 [ 182.849864][ T5784] ? do_new_mount+0x71f/0x15e0 [ 182.854823][ T5784] ? path_mount+0x742/0x1f10 [ 182.859556][ T5784] ? __se_sys_mount+0x722/0x810 [ 182.864602][ T5784] ? __x64_sys_mount+0xe4/0x150 [ 182.869559][ T5784] ? x64_sys_call+0x255a/0x3ba0 [ 182.874547][ T5784] ? do_syscall_64+0xcd/0x1e0 [ 182.879342][ T5784] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 182.885526][ T5784] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 182.892001][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.897330][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.903281][ T5784] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 182.909226][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.914577][ T5784] ? kmsan_internal_memmove_metadata+0x91/0x230 [ 182.920990][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.926316][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.931648][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.937592][ T5784] __msan_warning+0x95/0x120 [ 182.942304][ T5784] hfsplus_cat_bin_cmp_key+0xf1/0x190 [ 182.947792][ T5784] hfs_find_rec_by_key+0xb1/0x240 [ 182.952973][ T5784] ? __pfx_hfsplus_cat_bin_cmp_key+0x10/0x10 [ 182.959129][ T5784] __hfsplus_brec_find+0x26f/0x7b0 [ 182.964383][ T5784] ? __pfx_hfs_find_rec_by_key+0x10/0x10 [ 182.970208][ T5784] hfsplus_brec_find+0x445/0x970 [ 182.975285][ T5784] ? __pfx_hfs_find_rec_by_key+0x10/0x10 [ 182.981123][ T5784] hfsplus_brec_read+0x46/0x1a0 [ 182.986124][ T5784] hfsplus_find_cat+0xdb/0x460 [ 182.991045][ T5784] ? hfsplus_find_init+0x95/0x1d0 [ 182.996189][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.002151][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.007515][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.012876][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.018836][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.024176][ T5784] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 183.030637][ T5784] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 183.036837][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.042175][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.048127][ T5784] hfsplus_iget+0x729/0xae0 [ 183.052800][ T5784] hfsplus_fill_super+0x151b/0x2700 [ 183.058200][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.063537][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.069491][ T5784] ? vsnprintf+0x2994/0x2a00 [ 183.074181][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.079528][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.084857][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.090810][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.096176][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.102135][ T5784] ? sb_set_blocksize+0x12a/0x160 [ 183.107322][ T5784] mount_bdev+0x39a/0x520 [ 183.111813][ T5784] ? __pfx_hfsplus_fill_super+0x10/0x10 [ 183.117577][ T5784] hfsplus_mount+0x4d/0x60 [ 183.122124][ T5784] legacy_get_tree+0x114/0x290 [ 183.127001][ T5784] ? __pfx_hfsplus_mount+0x10/0x10 [ 183.132249][ T5784] vfs_get_tree+0xb1/0x5a0 [ 183.136833][ T5784] ? mount_capable+0x97/0x120 [ 183.141623][ T5784] do_new_mount+0x71f/0x15e0 [ 183.146353][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.151788][ T5784] path_mount+0x742/0x1f10 [ 183.156334][ T5784] ? user_path_at+0x32f/0x390 [ 183.161127][ T5784] __se_sys_mount+0x722/0x810 [ 183.165933][ T5784] ? ptrace_notify+0x263/0x320 [ 183.170823][ T5784] __x64_sys_mount+0xe4/0x150 [ 183.175631][ T5784] x64_sys_call+0x255a/0x3ba0 [ 183.180459][ T5784] do_syscall_64+0xcd/0x1e0 [ 183.185175][ T5784] ? clear_bhb_loop+0x25/0x80 [ 183.189959][ T5784] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.195977][ T5784] RIP: 0033:0x7f08ad2de16a [ 183.200496][ T5784] 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 [ 183.220226][ T5784] RSP: 002b:00007ffdf15ae998 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 183.228770][ T5784] RAX: ffffffffffffffda RBX: 00007ffdf15ae9b0 RCX: 00007f08ad2de16a [ 183.236868][ T5784] RDX: 0000000020000100 RSI: 0000000020000080 RDI: 00007ffdf15ae9b0 [ 183.244988][ T5784] RBP: 0000000000000004 R08: 00007ffdf15ae9f0 R09: 0000000000000704 [ 183.253168][ T5784] R10: 0000000000000080 R11: 0000000000000286 R12: 0000000000000080 [ 183.261224][ T5784] R13: 00007ffdf15ae9f0 R14: 0000000000000003 R15: 0000000000080000 [ 183.269294][ T5784] [ 183.272771][ T5784] Kernel Offset: disabled [ 183.277173][ T5784] Rebooting in 86400 seconds..