./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4158605905 <...> Warning: Permanently added '10.128.0.232' (ED25519) to the list of known hosts. execve("./syz-executor4158605905", ["./syz-executor4158605905"], 0x7ffcd7bc6950 /* 10 vars */) = 0 brk(NULL) = 0x555580b2f000 brk(0x555580b2fd00) = 0x555580b2fd00 arch_prctl(ARCH_SET_FS, 0x555580b2f380) = 0 set_tid_address(0x555580b2f650) = 5789 set_robust_list(0x555580b2f660, 24) = 0 rseq(0x555580b2fca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4158605905", 4096) = 28 getrandom("\x4f\xa1\x94\x3c\xb8\x8e\xf4\xa4", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555580b2fd00 brk(0x555580b50d00) = 0x555580b50d00 brk(0x555580b51000) = 0x555580b51000 mprotect(0x7f605d19a000, 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=0x555580b2f650) = 5790 ./strace-static-x86_64: Process 5790 attached [pid 5790] set_robust_list(0x555580b2f660, 24) = 0 [pid 5790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5790] setpgid(0, 0) = 0 [pid 5790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5790] write(3, "1000", 4) = 4 [pid 5790] close(3executing program ) = 0 [pid 5790] write(1, "executing program\n", 18) = 18 [pid 5790] memfd_create("syzkaller", 0) = 3 [pid 5790] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6054c00000 [pid 5790] 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 5790] munmap(0x7f6054c00000, 138412032) = 0 [pid 5790] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5790] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5790] close(3) = 0 [pid 5790] close(4) = 0 [pid 5790] mkdir("./file0", 0777) = 0 [ 180.963367][ T5790] loop0: detected capacity change from 0 to 64 [ 181.012860][ T5790] ===================================================== [ 181.020190][ T5790] BUG: KMSAN: uninit-value in hfs_read_inode+0x10ae/0x1690 [ 181.028222][ T5790] hfs_read_inode+0x10ae/0x1690 [ 181.033376][ T5790] inode_insert5+0x1dd/0x970 [ 181.038161][ T5790] iget5_locked+0xfe/0x1d0 [ 181.042900][ T5790] hfs_iget+0x121/0x240 [ 181.047226][ T5790] hfs_fill_super+0x2098/0x23c0 [ 181.052343][ T5790] mount_bdev+0x39a/0x520 [ 181.056843][ T5790] hfs_mount+0x4d/0x60 [ 181.061151][ T5790] legacy_get_tree+0x114/0x290 [ 181.066104][ T5790] vfs_get_tree+0xb1/0x5a0 [ 181.070894][ T5790] do_new_mount+0x71f/0x15e0 [ 181.075655][ T5790] path_mount+0x742/0x1f10 [ 181.080234][ T5790] __se_sys_mount+0x722/0x810 [ 181.085162][ T5790] __x64_sys_mount+0xe4/0x150 [ 181.090010][ T5790] x64_sys_call+0x255a/0x3ba0 [ 181.094955][ T5790] do_syscall_64+0xcd/0x1e0 [ 181.099623][ T5790] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.105930][ T5790] [ 181.108340][ T5790] Local variable rec created at: [ 181.113454][ T5790] hfs_fill_super+0x67/0x23c0 [ 181.118318][ T5790] mount_bdev+0x39a/0x520 [ 181.122901][ T5790] [ 181.125335][ T5790] CPU: 1 UID: 0 PID: 5790 Comm: syz-executor415 Not tainted 6.12.0-rc7-syzkaller-00216-gf66d6acccbc0 #0 [ 181.136808][ T5790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 181.147068][ T5790] ===================================================== [ 181.154207][ T5790] Disabling lock debugging due to kernel taint [ 181.160466][ T5790] Kernel panic - not syncing: kmsan.panic set ... [ 181.167015][ T5790] CPU: 1 UID: 0 PID: 5790 Comm: syz-executor415 Tainted: G B 6.12.0-rc7-syzkaller-00216-gf66d6acccbc0 #0 [ 181.179810][ T5790] Tainted: [B]=BAD_PAGE [ 181.184059][ T5790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 181.194258][ T5790] Call Trace: [ 181.197645][ T5790] [ 181.200677][ T5790] dump_stack_lvl+0x216/0x2d0 [ 181.205567][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.211544][ T5790] dump_stack+0x1e/0x30 [ 181.215895][ T5790] panic+0x4e2/0xcf0 [ 181.219982][ T5790] ? kmsan_get_metadata+0x81/0x1c0 [ 181.225272][ T5790] kmsan_report+0x2c7/0x2d0 [ 181.229933][ T5790] ? kmsan_internal_chain_origin+0xb0/0xd0 [ 181.235943][ T5790] ? do_syscall_64+0xcd/0x1e0 [ 181.240769][ T5790] ? __msan_warning+0x95/0x120 [ 181.245723][ T5790] ? hfs_read_inode+0x10ae/0x1690 [ 181.250938][ T5790] ? inode_insert5+0x1dd/0x970 [ 181.255898][ T5790] ? iget5_locked+0xfe/0x1d0 [ 181.260673][ T5790] ? hfs_iget+0x121/0x240 [ 181.265181][ T5790] ? hfs_fill_super+0x2098/0x23c0 [ 181.270401][ T5790] ? mount_bdev+0x39a/0x520 [ 181.275085][ T5790] ? hfs_mount+0x4d/0x60 [ 181.279514][ T5790] ? legacy_get_tree+0x114/0x290 [ 181.284624][ T5790] ? vfs_get_tree+0xb1/0x5a0 [ 181.289393][ T5790] ? do_new_mount+0x71f/0x15e0 [ 181.294332][ T5790] ? path_mount+0x742/0x1f10 [ 181.299089][ T5790] ? __se_sys_mount+0x722/0x810 [ 181.304125][ T5790] ? __x64_sys_mount+0xe4/0x150 [ 181.309156][ T5790] ? x64_sys_call+0x255a/0x3ba0 [ 181.314194][ T5790] ? do_syscall_64+0xcd/0x1e0 [ 181.319020][ T5790] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.325280][ T5790] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.331536][ T5790] ? filter_irq_stacks+0x164/0x1a0 [ 181.336864][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.342221][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.347575][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.352933][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.358290][ T5790] ? kmsan_internal_memmove_metadata+0x17b/0x230 [ 181.364827][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.370185][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.375543][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.381521][ T5790] __msan_warning+0x95/0x120 [ 181.386308][ T5790] hfs_read_inode+0x10ae/0x1690 [ 181.391367][ T5790] inode_insert5+0x1dd/0x970 [ 181.396156][ T5790] ? __pfx_hfs_read_inode+0x10/0x10 [ 181.401547][ T5790] ? __pfx_hfs_test_inode+0x10/0x10 [ 181.406943][ T5790] iget5_locked+0xfe/0x1d0 [ 181.411556][ T5790] ? __pfx_hfs_read_inode+0x10/0x10 [ 181.416942][ T5790] ? __pfx_hfs_test_inode+0x10/0x10 [ 181.422341][ T5790] hfs_iget+0x121/0x240 [ 181.426681][ T5790] hfs_fill_super+0x2098/0x23c0 [ 181.431749][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.437107][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.443112][ T5790] mount_bdev+0x39a/0x520 [ 181.447626][ T5790] ? __pfx_hfs_fill_super+0x10/0x10 [ 181.453030][ T5790] hfs_mount+0x4d/0x60 [ 181.457289][ T5790] legacy_get_tree+0x114/0x290 [ 181.462249][ T5790] ? __pfx_hfs_mount+0x10/0x10 [ 181.467210][ T5790] vfs_get_tree+0xb1/0x5a0 [ 181.471809][ T5790] ? mount_capable+0x97/0x120 [ 181.476656][ T5790] do_new_mount+0x71f/0x15e0 [ 181.481425][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.486798][ T5790] path_mount+0x742/0x1f10 [ 181.491392][ T5790] ? user_path_at+0x32f/0x390 [ 181.496245][ T5790] __se_sys_mount+0x722/0x810 [ 181.501118][ T5790] ? ptrace_notify+0x263/0x320 [ 181.506071][ T5790] __x64_sys_mount+0xe4/0x150 [ 181.510943][ T5790] x64_sys_call+0x255a/0x3ba0 [ 181.515816][ T5790] do_syscall_64+0xcd/0x1e0 [ 181.520470][ T5790] ? clear_bhb_loop+0x25/0x80 [ 181.525339][ T5790] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.531427][ T5790] RIP: 0033:0x7f605d127dea [ 181.535984][ T5790] 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 [ 181.555806][ T5790] RSP: 002b:00007fff78170278 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 181.564407][ T5790] RAX: ffffffffffffffda RBX: 00007fff78170290 RCX: 00007f605d127dea [ 181.572525][ T5790] RDX: 0000000020000040 RSI: 0000000020000200 RDI: 00007fff78170290 [ 181.580641][ T5790] RBP: 0000000000000004 R08: 00007fff781702d0 R09: 0000000000000288 [ 181.588751][ T5790] R10: 0000000001200c86 R11: 0000000000000286 R12: 0000000001200c86 [ 181.596860][ T5790] R13: 00007fff781702d0 R14: 0000000000000003 R15: 0000000000008000 [ 181.604984][ T5790] [ 181.608277][ T5790] Kernel Offset: disabled [ 181.612667][ T5790] Rebooting in 86400 seconds..