./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2085104811 <...> Warning: Permanently added '10.128.1.97' (ED25519) to the list of known hosts. execve("./syz-executor2085104811", ["./syz-executor2085104811"], 0x7fffe17e3960 /* 10 vars */) = 0 brk(NULL) = 0x555564cef000 brk(0x555564cefd00) = 0x555564cefd00 arch_prctl(ARCH_SET_FS, 0x555564cef380) = 0 set_tid_address(0x555564cef650) = 5013 set_robust_list(0x555564cef660, 24) = 0 rseq(0x555564cefca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2085104811", 4096) = 28 getrandom("\x5b\xd6\x95\x9e\xeb\xef\xef\xd7", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555564cefd00 brk(0x555564d10d00) = 0x555564d10d00 brk(0x555564d11000) = 0x555564d11000 mprotect(0x7f2f6e11c000, 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=0x555564cef650) = 5014 ./strace-static-x86_64: Process 5014 attached [pid 5014] set_robust_list(0x555564cef660, 24) = 0 [pid 5014] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5014] setpgid(0, 0) = 0 [pid 5014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5014] write(3, "1000", 4) = 4 [pid 5014] close(3) = 0 [pid 5014] memfd_create("syzkaller", 0) = 3 [pid 5014] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2f65c00000 [pid 5014] 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 5014] munmap(0x7f2f65c00000, 138412032) = 0 [pid 5014] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5014] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5014] close(3) = 0 [pid 5014] close(4) = 0 [pid 5014] mkdir("./file1", 0777) = 0 [pid 5014] mount("/dev/loop0", "./file1", "hfsplus", MS_NOATIME|MS_SILENT|MS_STRICTATIME, "") = 0 [pid 5014] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5014] chdir("./file1") = 0 [pid 5014] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 178.104386][ T5014] loop0: detected capacity change from 0 to 1024 [pid 5014] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [ 178.175805][ T5014] ===================================================== [ 178.181105][ T28] audit: type=1800 audit(1710730958.885:2): pid=5014 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor208" name="bus" dev="loop0" ino=25 res=0 errno=0 [ 178.183310][ T5014] BUG: KMSAN: uninit-value in hfsplus_lookup+0x671/0xf00 [ 178.214362][ T5014] hfsplus_lookup+0x671/0xf00 [ 178.219294][ T5014] lookup_one_qstr_excl+0x238/0x530 [ 178.224985][ T5014] do_renameat2+0xb33/0x1d50 [ 178.229852][ T5014] __x64_sys_rename+0xf0/0x150 [ 178.235137][ T5014] do_syscall_64+0xd5/0x1f0 [ 178.239910][ T5014] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 178.246212][ T5014] [ 178.248652][ T5014] Uninit was created at: [ 178.253483][ T5014] __alloc_pages+0x9d6/0xe70 [ 178.258344][ T5014] new_slab+0x2de/0x1400 [ 178.263087][ T5014] ___slab_alloc+0x1184/0x33d0 [ 178.268070][ T5014] kmem_cache_alloc_lru+0x6d7/0xbe0 [ 178.273639][ T5014] hfsplus_alloc_inode+0x5a/0xd0 [ 178.278808][ T5014] alloc_inode+0x86/0x460 [ 178.283533][ T5014] iget_locked+0x2bf/0xee0 [ 178.288187][ T5014] hfsplus_iget+0x59/0xaf0 [ 178.292920][ T5014] hfsplus_fill_super+0x1486/0x2700 [ 178.298353][ T5014] mount_bdev+0x397/0x520 [ 178.303035][ T5014] hfsplus_mount+0x4d/0x60 [ 178.307630][ T5014] legacy_get_tree+0x114/0x290 [ 178.312854][ T5014] vfs_get_tree+0xa7/0x570 [ 178.317507][ T5014] do_new_mount+0x71f/0x15e0 [ 178.322598][ T5014] path_mount+0x742/0x1f20 [ 178.327232][ T5014] __se_sys_mount+0x725/0x810 [ 178.332343][ T5014] __x64_sys_mount+0xe4/0x150 [ 178.337245][ T5014] do_syscall_64+0xd5/0x1f0 [ 178.342118][ T5014] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 178.348218][ T5014] [ 178.350688][ T5014] CPU: 0 PID: 5014 Comm: syz-executor208 Not tainted 6.8.0-syzkaller-11339-g741e9d668aa5 #0 [ 178.361334][ T5014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 178.371691][ T5014] ===================================================== [ 178.378758][ T5014] Disabling lock debugging due to kernel taint [ 178.385259][ T5014] Kernel panic - not syncing: kmsan.panic set ... [ 178.391822][ T5014] CPU: 0 PID: 5014 Comm: syz-executor208 Tainted: G B 6.8.0-syzkaller-11339-g741e9d668aa5 #0 [ 178.403587][ T5014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 178.413852][ T5014] Call Trace: [ 178.417276][ T5014] [ 178.420291][ T5014] dump_stack_lvl+0x216/0x2d0 [ 178.425153][ T5014] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.431187][ T5014] dump_stack+0x1e/0x30 [ 178.435556][ T5014] panic+0x4e2/0xcd0 [ 178.439639][ T5014] ? kmsan_get_metadata+0x51/0x1d0 [ 178.444977][ T5014] kmsan_report+0x2d5/0x2e0 [ 178.449754][ T5014] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.455811][ T5014] ? __msan_warning+0x95/0x120 [ 178.460823][ T5014] ? hfsplus_lookup+0x671/0xf00 [ 178.465912][ T5014] ? lookup_one_qstr_excl+0x238/0x530 [ 178.471488][ T5014] ? do_renameat2+0xb33/0x1d50 [ 178.476518][ T5014] ? __x64_sys_rename+0xf0/0x150 [ 178.481723][ T5014] ? do_syscall_64+0xd5/0x1f0 [ 178.486657][ T5014] ? entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 178.492965][ T5014] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.499098][ T5014] ? __hfsplus_brec_find+0x6a4/0x7b0 [ 178.504667][ T5014] ? kmsan_get_metadata+0x146/0x1d0 [ 178.510165][ T5014] ? kmsan_internal_memmove_metadata+0x91/0x230 [ 178.516713][ T5014] ? __msan_memcpy+0x108/0x1c0 [ 178.521758][ T5014] ? hfsplus_bnode_read+0x23a/0x250 [ 178.527273][ T5014] ? kmsan_get_metadata+0x146/0x1d0 [ 178.532747][ T5014] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.538834][ T5014] __msan_warning+0x95/0x120 [ 178.543663][ T5014] hfsplus_lookup+0x671/0xf00 [ 178.548618][ T5014] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.554758][ T5014] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.560850][ T5014] ? kmsan_get_metadata+0x146/0x1d0 [ 178.566331][ T5014] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 178.572834][ T5014] ? kmsan_get_metadata+0x146/0x1d0 [ 178.578280][ T5014] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.584378][ T5014] ? _raw_spin_unlock+0x30/0x50 [ 178.589495][ T5014] ? kmsan_get_metadata+0x146/0x1d0 [ 178.594994][ T5014] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.601094][ T5014] ? __pfx_hfsplus_lookup+0x10/0x10 [ 178.606544][ T5014] lookup_one_qstr_excl+0x238/0x530 [ 178.611987][ T5014] do_renameat2+0xb33/0x1d50 [ 178.616824][ T5014] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.622982][ T5014] __x64_sys_rename+0xf0/0x150 [ 178.628022][ T5014] do_syscall_64+0xd5/0x1f0 [ 178.632780][ T5014] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 178.638988][ T5014] RIP: 0033:0x7f2f6e0a8a99 [ 178.643559][ T5014] 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 [ 178.663405][ T5014] RSP: 002b:00007ffd86bd0cf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 [ 178.672043][ T5014] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2f6e0a8a99 [ 178.680189][ T5014] RDX: 00007f2f6e0a8a99 RSI: 0000000020000300 RDI: 0000000020000b00 [ 178.688356][ T5014] RBP: 00007f2f6e11c5f0 R08: 0000555564cf04c0 R09: 0000555564cf04c0 [ 178.696530][ T5014] R10: 0000000000000640 R11: 0000000000000246 R12: 00007ffd86bd0d20 [ 178.704740][ T5014] R13: 00007ffd86bd0f48 R14: 431bde82d7b634db R15: 00007f2f6e0f103b [ 178.712931][ T5014] [ 178.716421][ T5014] Kernel Offset: disabled [ 178.720841][ T5014] Rebooting in 86400 seconds..