./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1143618509 <...> Warning: Permanently added '10.128.1.10' (ED25519) to the list of known hosts. execve("./syz-executor1143618509", ["./syz-executor1143618509"], 0x7ffe5fdb7820 /* 10 vars */) = 0 brk(NULL) = 0x5555943a6000 brk(0x5555943a6d00) = 0x5555943a6d00 arch_prctl(ARCH_SET_FS, 0x5555943a6380) = 0 set_tid_address(0x5555943a6650) = 5015 set_robust_list(0x5555943a6660, 24) = 0 rseq(0x5555943a6ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1143618509", 4096) = 28 getrandom("\xf5\x3e\x5b\x9e\x7d\x43\xf1\x46", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555943a6d00 brk(0x5555943c7d00) = 0x5555943c7d00 brk(0x5555943c8000) = 0x5555943c8000 mprotect(0x7faefcf1b000, 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=0x5555943a6650) = 5016 ./strace-static-x86_64: Process 5016 attached [pid 5016] set_robust_list(0x5555943a6660, 24) = 0 [pid 5016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5016] setpgid(0, 0) = 0 [pid 5016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5016] write(3, "1000", 4) = 4 [pid 5016] close(3) = 0 [pid 5016] memfd_create("syzkaller", 0) = 3 [pid 5016] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faef4a00000 [pid 5016] 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 5016] munmap(0x7faef4a00000, 138412032) = 0 [pid 5016] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5016] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5016] close(3) = 0 [pid 5016] close(4) = 0 [pid 5016] mkdir("\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", 0777) = 0 [ 152.527461][ T5016] loop0: detected capacity change from 0 to 1024 [pid 5016] mount("/dev/loop0", "\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", "hfsplus", 0, "") = 0 [pid 5016] openat(AT_FDCWD, "\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", O_RDONLY|O_DIRECTORY) = 3 [pid 5016] chdir("\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f") = 0 [pid 5016] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5016] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5016] mkdirat(4, "\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", 000) = 0 [ 152.609072][ T5016] ===================================================== [ 152.616454][ T5016] BUG: KMSAN: uninit-value in hfsplus_delete_cat+0x10f0/0x1350 [ 152.624286][ T5016] hfsplus_delete_cat+0x10f0/0x1350 [ 152.629711][ T5016] hfsplus_rmdir+0x140/0x2e0 [ 152.634625][ T5016] vfs_rmdir+0x5b1/0x790 [ 152.639039][ T5016] do_rmdir+0x630/0x8b0 [ 152.643374][ T5016] __x64_sys_unlinkat+0x1bc/0x230 [ 152.648649][ T5016] do_syscall_64+0xd5/0x1f0 [ 152.653271][ T5016] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 152.659425][ T5016] [ 152.661838][ T5016] Uninit was stored to memory at: [ 152.667187][ T5016] hfsplus_create_cat+0x1804/0x1810 [ 152.672582][ T5016] hfsplus_mknod+0x201/0x570 [ 152.677638][ T5016] hfsplus_mkdir+0x58/0x70 [ 152.682245][ T5016] vfs_mkdir+0x49e/0x710 [ 152.686804][ T5016] do_mkdirat+0x529/0x810 [ 152.691330][ T5016] __x64_sys_mkdirat+0xc8/0x120 [ 152.696519][ T5016] do_syscall_64+0xd5/0x1f0 [ 152.701214][ T5016] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 152.707416][ T5016] [ 152.709832][ T5016] Uninit was stored to memory at: [ 152.715152][ T5016] hfsplus_create_cat+0x1804/0x1810 [ 152.720531][ T5016] hfsplus_fill_super+0x227f/0x2700 [ 152.726016][ T5016] mount_bdev+0x397/0x520 [ 152.730527][ T5016] hfsplus_mount+0x4d/0x60 [ 152.735116][ T5016] legacy_get_tree+0x114/0x290 [ 152.740048][ T5016] vfs_get_tree+0xa7/0x570 [ 152.744671][ T5016] do_new_mount+0x71f/0x15e0 [ 152.749437][ T5016] path_mount+0x742/0x1f20 [ 152.754111][ T5016] __se_sys_mount+0x725/0x810 [ 152.758983][ T5016] __x64_sys_mount+0xe4/0x150 [ 152.763927][ T5016] do_syscall_64+0xd5/0x1f0 [ 152.768611][ T5016] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 152.774745][ T5016] [ 152.777165][ T5016] Uninit was created at: [ 152.781638][ T5016] __alloc_pages+0x9d6/0xe70 [ 152.786563][ T5016] new_slab+0x2de/0x1400 [ 152.790994][ T5016] ___slab_alloc+0x1184/0x33d0 [ 152.796176][ T5016] kmem_cache_alloc_lru+0x6d7/0xbe0 [ 152.801589][ T5016] hfsplus_alloc_inode+0x5a/0xd0 [ 152.806852][ T5016] alloc_inode+0x86/0x460 [ 152.811385][ T5016] iget_locked+0x2bf/0xee0 [ 152.816173][ T5016] hfsplus_iget+0x59/0xaf0 [ 152.820746][ T5016] hfsplus_btree_open+0x13e/0x1d10 [ 152.826195][ T5016] hfsplus_fill_super+0x118b/0x2700 [ 152.831574][ T5016] mount_bdev+0x397/0x520 [ 152.836220][ T5016] hfsplus_mount+0x4d/0x60 [ 152.840805][ T5016] legacy_get_tree+0x114/0x290 [ 152.845764][ T5016] vfs_get_tree+0xa7/0x570 [ 152.850384][ T5016] do_new_mount+0x71f/0x15e0 [ 152.855310][ T5016] path_mount+0x742/0x1f20 [ 152.859925][ T5016] __se_sys_mount+0x725/0x810 [ 152.864890][ T5016] __x64_sys_mount+0xe4/0x150 [ 152.869766][ T5016] do_syscall_64+0xd5/0x1f0 [ 152.874583][ T5016] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 152.880666][ T5016] [ 152.883081][ T5016] CPU: 0 PID: 5016 Comm: syz-executor114 Not tainted 6.8.0-syzkaller-13213-g70293240c5ce #0 [ 152.893499][ T5016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 152.903714][ T5016] ===================================================== [ 152.910701][ T5016] Disabling lock debugging due to kernel taint [ 152.917044][ T5016] Kernel panic - not syncing: kmsan.panic set ... [ 152.923582][ T5016] CPU: 0 PID: 5016 Comm: syz-executor114 Tainted: G B 6.8.0-syzkaller-13213-g70293240c5ce #0 [ 152.935310][ T5016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 152.945485][ T5016] Call Trace: [ 152.948843][ T5016] [ 152.951891][ T5016] dump_stack_lvl+0x216/0x2d0 [ 152.956775][ T5016] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 152.962785][ T5016] dump_stack+0x1e/0x30 [ 152.967133][ T5016] panic+0x4e2/0xcd0 [ 152.971188][ T5016] ? kmsan_get_metadata+0x51/0x1d0 [ 152.976439][ T5016] kmsan_report+0x2d5/0x2e0 [ 152.981168][ T5016] ? kmsan_internal_memmove_metadata+0x91/0x230 [ 152.987644][ T5016] ? kmsan_get_metadata+0x146/0x1d0 [ 152.993013][ T5016] ? __msan_warning+0x95/0x120 [ 152.997907][ T5016] ? hfsplus_delete_cat+0x10f0/0x1350 [ 153.003415][ T5016] ? hfsplus_rmdir+0x140/0x2e0 [ 153.008373][ T5016] ? vfs_rmdir+0x5b1/0x790 [ 153.012985][ T5016] ? do_rmdir+0x630/0x8b0 [ 153.017517][ T5016] ? __x64_sys_unlinkat+0x1bc/0x230 [ 153.022903][ T5016] ? do_syscall_64+0xd5/0x1f0 [ 153.027687][ T5016] ? entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 153.033902][ T5016] ? hfsplus_bnode_dump+0xca0/0xcd0 [ 153.039270][ T5016] ? set_page_dirty+0xa5/0x220 [ 153.044243][ T5016] ? kmsan_get_metadata+0x146/0x1d0 [ 153.049709][ T5016] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 153.055717][ T5016] ? hfsplus_brec_remove+0x91d/0x9d0 [ 153.061249][ T5016] ? kmsan_get_metadata+0x146/0x1d0 [ 153.066552][ T5016] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 153.072540][ T5016] __msan_warning+0x95/0x120 [ 153.077252][ T5016] hfsplus_delete_cat+0x10f0/0x1350 [ 153.082595][ T5016] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 153.088678][ T5016] ? kmsan_get_metadata+0x146/0x1d0 [ 153.094056][ T5016] hfsplus_rmdir+0x140/0x2e0 [ 153.098773][ T5016] ? __pfx_hfsplus_rmdir+0x10/0x10 [ 153.104038][ T5016] vfs_rmdir+0x5b1/0x790 [ 153.108484][ T5016] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 153.114550][ T5016] do_rmdir+0x630/0x8b0 [ 153.118868][ T5016] __x64_sys_unlinkat+0x1bc/0x230 [ 153.124153][ T5016] do_syscall_64+0xd5/0x1f0 [ 153.128832][ T5016] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 153.134911][ T5016] RIP: 0033:0x7faefcea7a99 [ 153.139471][ T5016] 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 [ 153.159293][ T5016] RSP: 002b:00007ffc8bc6e648 EFLAGS: 00000246 ORIG_RAX: 0000000000000107 [ 153.167877][ T5016] RAX: ffffffffffffffda RBX: 00007faefcef00c0 RCX: 00007faefcea7a99 [ 153.175986][ T5016] RDX: 0000000000000200 RSI: 0000000020000400 RDI: 0000000000000004 [ 153.184152][ T5016] RBP: 00007faefcf1b5f0 R08: 00005555943a74c0 R09: 00005555943a74c0 [ 153.192275][ T5016] R10: 00005555943a74c0 R11: 0000000000000246 R12: 00007ffc8bc6e670 [ 153.200356][ T5016] R13: 00007ffc8bc6e898 R14: 431bde82d7b634db R15: 00007faefcef003b [ 153.208483][ T5016] [ 153.212029][ T5016] Kernel Offset: disabled [ 153.216412][ T5016] Rebooting in 86400 seconds..