./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3825574917 <...> Warning: Permanently added '10.128.0.144' (ED25519) to the list of known hosts. execve("./syz-executor3825574917", ["./syz-executor3825574917"], 0x7ffdc74467e0 /* 10 vars */) = 0 brk(NULL) = 0x5555725c6000 brk(0x5555725c6d00) = 0x5555725c6d00 arch_prctl(ARCH_SET_FS, 0x5555725c6380) = 0 set_tid_address(0x5555725c6650) = 5787 set_robust_list(0x5555725c6660, 24) = 0 rseq(0x5555725c6ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3825574917", 4096) = 28 getrandom("\xed\x5f\x77\x6e\x38\xbf\x8a\x1e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555725c6d00 brk(0x5555725e7d00) = 0x5555725e7d00 brk(0x5555725e8000) = 0x5555725e8000 mprotect(0x7feccf68d000, 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./strace-static-x86_64: Process 5788 attached , child_tidptr=0x5555725c6650) = 5788 [pid 5788] set_robust_list(0x5555725c6660, 24) = 0 [pid 5788] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5788] setpgid(0, 0) = 0 [pid 5788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5788] write(3, "1000", 4) = 4 [pid 5788] close(3executing program ) = 0 [pid 5788] write(1, "executing program\n", 18) = 18 [pid 5788] memfd_create("syzkaller", 0) = 3 [pid 5788] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fecc7000000 [pid 5788] 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 5788] munmap(0x7fecc7000000, 138412032) = 0 [pid 5788] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5788] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5788] close(3) = 0 [pid 5788] close(4) = 0 [pid 5788] mkdir("./file0", 0777) = 0 [pid 5788] mount("/dev/loop0", "./file0", "hfsplus", 0, "nls=cp855,gid=0x0000000000000000,gid=0x0000000000000000,uid=0x0000000000000000,nobarrier,") = 0 [pid 5788] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5788] chdir("./file0") = 0 [ 212.442291][ T5788] loop0: detected capacity change from 0 to 1024 [pid 5788] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5788] mkdir("./control", 000) = 0 [ 212.514785][ T5788] ===================================================== [ 212.522252][ T5788] BUG: KMSAN: uninit-value in hfsplus_delete_cat+0x10f0/0x1340 [ 212.530311][ T5788] hfsplus_delete_cat+0x10f0/0x1340 [ 212.535785][ T5788] hfsplus_rmdir+0x140/0x2e0 [ 212.540747][ T5788] vfs_rmdir+0x5bf/0x800 [ 212.545236][ T5788] do_rmdir+0x630/0x8b0 [ 212.549828][ T5788] __x64_sys_rmdir+0x76/0xa0 [ 212.554663][ T5788] x64_sys_call+0x119a/0x3ba0 [ 212.559777][ T5788] do_syscall_64+0xcd/0x1e0 [ 212.564549][ T5788] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 212.570741][ T5788] [ 212.573174][ T5788] Uninit was stored to memory at: [ 212.578708][ T5788] hfsplus_create_cat+0x17f6/0x1800 [ 212.584156][ T5788] hfsplus_mknod+0x201/0x560 [ 212.589056][ T5788] hfsplus_mkdir+0x58/0x70 [ 212.593707][ T5788] vfs_mkdir+0x4a0/0x780 [ 212.598259][ T5788] do_mkdirat+0x529/0x810 [ 212.602816][ T5788] __x64_sys_mkdir+0x9f/0xe0 [ 212.607759][ T5788] x64_sys_call+0x2ef0/0x3ba0 [ 212.612663][ T5788] do_syscall_64+0xcd/0x1e0 [ 212.617528][ T5788] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 212.623643][ T5788] [ 212.626073][ T5788] Uninit was stored to memory at: [ 212.631573][ T5788] hfsplus_create_cat+0x17f6/0x1800 [ 212.637051][ T5788] hfsplus_fill_super+0x227f/0x2700 [ 212.642433][ T5788] mount_bdev+0x39a/0x520 [ 212.647024][ T5788] hfsplus_mount+0x4d/0x60 [ 212.651691][ T5788] legacy_get_tree+0x114/0x290 [ 212.656777][ T5788] vfs_get_tree+0xb1/0x5a0 [ 212.661447][ T5788] do_new_mount+0x71f/0x15e0 [ 212.666253][ T5788] path_mount+0x742/0x1f10 [ 212.671065][ T5788] __se_sys_mount+0x722/0x810 [ 212.675897][ T5788] __x64_sys_mount+0xe4/0x150 [ 212.680929][ T5788] x64_sys_call+0x255a/0x3ba0 [ 212.685833][ T5788] do_syscall_64+0xcd/0x1e0 [ 212.690613][ T5788] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 212.696889][ T5788] [ 212.699312][ T5788] Uninit was created at: [ 212.703724][ T5788] __alloc_pages_noprof+0x9a7/0xe00 [ 212.709217][ T5788] alloc_pages_mpol_noprof+0x299/0x990 [ 212.714885][ T5788] alloc_pages_noprof+0x1bf/0x1e0 [ 212.720274][ T5788] allocate_slab+0x320/0x12e0 [ 212.725144][ T5788] ___slab_alloc+0x12ef/0x35e0 [ 212.730217][ T5788] kmem_cache_alloc_lru_noprof+0x584/0xb30 [ 212.736271][ T5788] hfsplus_alloc_inode+0x5a/0xd0 [ 212.741634][ T5788] alloc_inode+0x86/0x460 [ 212.746145][ T5788] iget_locked+0x250/0x1290 [ 212.751003][ T5788] hfsplus_iget+0x59/0xae0 [ 212.755705][ T5788] hfsplus_fill_super+0x1486/0x2700 [ 212.761338][ T5788] mount_bdev+0x39a/0x520 [ 212.765880][ T5788] hfsplus_mount+0x4d/0x60 [ 212.770609][ T5788] legacy_get_tree+0x114/0x290 [ 212.775584][ T5788] vfs_get_tree+0xb1/0x5a0 [ 212.780314][ T5788] do_new_mount+0x71f/0x15e0 [ 212.785126][ T5788] path_mount+0x742/0x1f10 [ 212.789810][ T5788] __se_sys_mount+0x722/0x810 [ 212.794703][ T5788] __x64_sys_mount+0xe4/0x150 [ 212.799746][ T5788] x64_sys_call+0x255a/0x3ba0 [ 212.804678][ T5788] do_syscall_64+0xcd/0x1e0 [ 212.809550][ T5788] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 212.815692][ T5788] [ 212.818305][ T5788] CPU: 1 UID: 0 PID: 5788 Comm: syz-executor382 Not tainted 6.12.0-rc6-syzkaller #0 [ 212.828011][ T5788] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 212.838400][ T5788] ===================================================== [ 212.845474][ T5788] Disabling lock debugging due to kernel taint [ 212.851894][ T5788] Kernel panic - not syncing: kmsan.panic set ... [ 212.858467][ T5788] CPU: 1 UID: 0 PID: 5788 Comm: syz-executor382 Tainted: G B 6.12.0-rc6-syzkaller #0 [ 212.869482][ T5788] Tainted: [B]=BAD_PAGE [ 212.873742][ T5788] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 212.883925][ T5788] Call Trace: [ 212.887299][ T5788] [ 212.890324][ T5788] dump_stack_lvl+0x216/0x2d0 [ 212.895176][ T5788] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 212.901163][ T5788] dump_stack+0x1e/0x30 [ 212.905579][ T5788] panic+0x4e2/0xcf0 [ 212.909644][ T5788] ? kmsan_get_metadata+0x131/0x1c0 [ 212.914994][ T5788] kmsan_report+0x2c7/0x2d0 [ 212.919697][ T5788] ? __msan_warning+0x95/0x120 [ 212.924653][ T5788] ? hfsplus_delete_cat+0x10f0/0x1340 [ 212.930254][ T5788] ? hfsplus_rmdir+0x140/0x2e0 [ 212.935189][ T5788] ? vfs_rmdir+0x5bf/0x800 [ 212.939827][ T5788] ? do_rmdir+0x630/0x8b0 [ 212.944314][ T5788] ? __x64_sys_rmdir+0x76/0xa0 [ 212.949257][ T5788] ? x64_sys_call+0x119a/0x3ba0 [ 212.954315][ T5788] ? do_syscall_64+0xcd/0x1e0 [ 212.959177][ T5788] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 212.965496][ T5788] ? hfsplus_bnode_dump+0xca0/0xcd0 [ 212.970899][ T5788] ? set_page_dirty+0xa5/0x220 [ 212.975888][ T5788] ? kmsan_get_metadata+0x13e/0x1c0 [ 212.981257][ T5788] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 212.987218][ T5788] ? hfsplus_brec_remove+0x91d/0x9d0 [ 212.992674][ T5788] ? kmsan_get_metadata+0x13e/0x1c0 [ 212.998019][ T5788] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 213.004018][ T5788] __msan_warning+0x95/0x120 [ 213.008788][ T5788] hfsplus_delete_cat+0x10f0/0x1340 [ 213.014135][ T5788] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 213.020124][ T5788] ? kmsan_get_metadata+0x13e/0x1c0 [ 213.025472][ T5788] hfsplus_rmdir+0x140/0x2e0 [ 213.030247][ T5788] ? __pfx_hfsplus_rmdir+0x10/0x10 [ 213.035623][ T5788] vfs_rmdir+0x5bf/0x800 [ 213.040022][ T5788] do_rmdir+0x630/0x8b0 [ 213.044372][ T5788] __x64_sys_rmdir+0x76/0xa0 [ 213.049120][ T5788] x64_sys_call+0x119a/0x3ba0 [ 213.054099][ T5788] do_syscall_64+0xcd/0x1e0 [ 213.058830][ T5788] ? clear_bhb_loop+0x25/0x80 [ 213.063680][ T5788] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 213.069746][ T5788] RIP: 0033:0x7feccf618dd9 [ 213.074294][ T5788] 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 [ 213.094084][ T5788] RSP: 002b:00007ffec15dce68 EFLAGS: 00000246 ORIG_RAX: 0000000000000054 [ 213.102702][ T5788] RAX: ffffffffffffffda RBX: 6f72746e6f632f2e RCX: 00007feccf618dd9 [ 213.110820][ T5788] RDX: 00007feccf618dd9 RSI: 00007feccf617dd1 RDI: 0000000020000100 [ 213.119004][ T5788] RBP: 00007feccf68d5f0 R08: 00005555725c74c0 R09: 00005555725c74c0 [ 213.127122][ T5788] R10: 00000000000005db R11: 0000000000000246 R12: 00007ffec15dce90 [ 213.135248][ T5788] R13: 00007ffec15dd0b8 R14: 431bde82d7b634db R15: 00007feccf66203b [ 213.143424][ T5788] [ 213.146926][ T5788] Kernel Offset: disabled [ 213.151349][ T5788] Rebooting in 86400 seconds..