./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1689849580 <...> Warning: Permanently added '10.128.0.131' (ED25519) to the list of known hosts. execve("./syz-executor1689849580", ["./syz-executor1689849580"], 0x7ffddc5be9c0 /* 10 vars */) = 0 brk(NULL) = 0x555555759000 brk(0x555555759d00) = 0x555555759d00 arch_prctl(ARCH_SET_FS, 0x555555759380) = 0 set_tid_address(0x555555759650) = 5007 set_robust_list(0x555555759660, 24) = 0 rseq(0x555555759ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1689849580", 4096) = 28 getrandom("\xc3\xf8\x2f\xb3\x70\x19\x78\x53", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555759d00 brk(0x55555577ad00) = 0x55555577ad00 brk(0x55555577b000) = 0x55555577b000 mprotect(0x7fedbe03e000, 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=0x555555759650) = 5008 ./strace-static-x86_64: Process 5008 attached [pid 5008] set_robust_list(0x555555759660, 24) = 0 [pid 5008] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5008] setpgid(0, 0) = 0 [pid 5008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5008] write(3, "1000", 4) = 4 [pid 5008] close(3) = 0 [pid 5008] memfd_create("syzkaller", 0) = 3 [pid 5008] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fedb5b8c000 [pid 5008] 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 5008] munmap(0x7fedb5b8c000, 138412032) = 0 [pid 5008] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5008] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5008] close(3) = 0 [pid 5008] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5008] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_NOSUID|MS_DIRSYNC|MS_POSIXACL|MS_STRICTATIME, "") = 0 [pid 5008] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5008] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5008] ioctl(4, LOOP_CLR_FD) = 0 [pid 5008] close(4) = 0 [ 143.327038][ T5008] loop0: detected capacity change from 0 to 1024 [ 143.387424][ T5008] ===================================================== [ 143.394638][ T5008] BUG: KMSAN: uninit-value in hfsplus_lookup+0x66b/0xef0 [ 143.402089][ T5008] hfsplus_lookup+0x66b/0xef0 [ 143.407052][ T5008] path_openat+0x27d3/0x5c70 [ 143.412003][ T5008] do_filp_open+0x20d/0x590 [ 143.416955][ T5008] do_sys_openat2+0x1bf/0x2f0 [ 143.421823][ T5008] __x64_sys_creat+0xe6/0x140 [ 143.426833][ T5008] do_syscall_64+0x44/0x110 [ 143.431544][ T5008] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 143.438238][ T5008] [ 143.440655][ T5008] Uninit was created at: [ 143.445363][ T5008] __alloc_pages+0x9a4/0xe00 [ 143.450135][ T5008] alloc_pages_mpol+0x62b/0x9d0 [ 143.455451][ T5008] alloc_pages+0x1be/0x1e0 [ 143.460124][ T5008] new_slab+0x421/0x1570 [ 143.464518][ T5008] ___slab_alloc+0x13db/0x33d0 [ 143.469565][ T5008] kmem_cache_alloc_lru+0x552/0x970 [ 143.474906][ T5008] hfsplus_alloc_inode+0x5a/0xc0 [ 143.480166][ T5008] alloc_inode+0x83/0x440 [ 143.484610][ T5008] iget_locked+0x2dd/0xe80 [ 143.489393][ T5008] hfsplus_iget+0x59/0xaf0 [ 143.494003][ T5008] hfsplus_btree_open+0x13e/0x1d00 [ 143.499398][ T5008] hfsplus_fill_super+0x1113/0x26f0 [ 143.504780][ T5008] mount_bdev+0x3d7/0x560 [ 143.509330][ T5008] hfsplus_mount+0x4d/0x60 [ 143.514056][ T5008] legacy_get_tree+0x110/0x290 [ 143.519061][ T5008] vfs_get_tree+0xa5/0x520 [ 143.523716][ T5008] do_new_mount+0x68d/0x1550 [ 143.528490][ T5008] path_mount+0x73d/0x1f20 [ 143.533058][ T5008] __se_sys_mount+0x725/0x810 [ 143.538099][ T5008] __x64_sys_mount+0xe4/0x140 [ 143.542924][ T5008] do_syscall_64+0x44/0x110 [ 143.547611][ T5008] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 143.553775][ T5008] [ 143.556289][ T5008] CPU: 0 PID: 5008 Comm: syz-executor168 Not tainted 6.7.0-rc7-syzkaller #0 [ 143.565181][ T5008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 143.575530][ T5008] ===================================================== [ 143.582536][ T5008] Disabling lock debugging due to kernel taint [ 143.588857][ T5008] Kernel panic - not syncing: kmsan.panic set ... [ 143.595378][ T5008] CPU: 0 PID: 5008 Comm: syz-executor168 Tainted: G B 6.7.0-rc7-syzkaller #0 [ 143.605723][ T5008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 143.615989][ T5008] Call Trace: [ 143.619343][ T5008] [ 143.622362][ T5008] dump_stack_lvl+0x1bf/0x240 [ 143.627270][ T5008] dump_stack+0x1e/0x20 [ 143.631766][ T5008] panic+0x4de/0xc90 [ 143.635957][ T5008] ? add_taint+0x108/0x1a0 [ 143.640553][ T5008] kmsan_report+0x2d0/0x2d0 [ 143.645344][ T5008] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 143.651542][ T5008] ? __msan_warning+0x96/0x110 [ 143.656664][ T5008] ? hfsplus_lookup+0x66b/0xef0 [ 143.661693][ T5008] ? path_openat+0x27d3/0x5c70 [ 143.666565][ T5008] ? do_filp_open+0x20d/0x590 [ 143.671392][ T5008] ? do_sys_openat2+0x1bf/0x2f0 [ 143.676438][ T5008] ? __x64_sys_creat+0xe6/0x140 [ 143.681411][ T5008] ? do_syscall_64+0x44/0x110 [ 143.686253][ T5008] ? entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 143.692519][ T5008] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 143.698522][ T5008] ? __hfsplus_brec_find+0x69e/0x7b0 [ 143.703935][ T5008] ? kmsan_internal_memmove_metadata+0x91/0x220 [ 143.710401][ T5008] ? __msan_memcpy+0x108/0x1b0 [ 143.715384][ T5008] ? hfsplus_bnode_read+0x23a/0x250 [ 143.720750][ T5008] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 143.726723][ T5008] __msan_warning+0x96/0x110 [ 143.731476][ T5008] hfsplus_lookup+0x66b/0xef0 [ 143.736413][ T5008] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 143.742405][ T5008] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 143.748361][ T5008] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 143.754383][ T5008] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 143.760413][ T5008] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 143.766421][ T5008] ? hfsplus_rename_cat+0x16f0/0x16f0 [ 143.772036][ T5008] ? hfsplus_rename_cat+0x16f0/0x16f0 [ 143.777593][ T5008] path_openat+0x27d3/0x5c70 [ 143.782455][ T5008] do_filp_open+0x20d/0x590 [ 143.787168][ T5008] do_sys_openat2+0x1bf/0x2f0 [ 143.792033][ T5008] __x64_sys_creat+0xe6/0x140 [ 143.796862][ T5008] do_syscall_64+0x44/0x110 [ 143.801662][ T5008] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 143.807737][ T5008] RIP: 0033:0x7fedbdfcaa19 [ 143.812217][ T5008] 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 [ 143.832342][ T5008] RSP: 002b:00007ffc86b54388 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 143.840922][ T5008] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fedbdfcaa19 [ 143.849111][ T5008] RDX: 00007fedbdfc9c70 RSI: 0000000000000000 RDI: 00000000200002c0 [ 143.857167][ T5008] RBP: 00007fedbe03e5f0 R08: 0000000000000646 R09: 000055555575a4c0 [ 143.865269][ T5008] R10: 00007ffc86b54250 R11: 0000000000000246 R12: 00007ffc86b543b0 [ 143.873554][ T5008] R13: 00007ffc86b545d8 R14: 431bde82d7b634db R15: 00007fedbe01303b [ 143.881683][ T5008] [ 143.885083][ T5008] Kernel Offset: disabled [ 143.889462][ T5008] Rebooting in 86400 seconds..