./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2432747034 <...> Warning: Permanently added '10.128.1.139' (ED25519) to the list of known hosts. execve("./syz-executor2432747034", ["./syz-executor2432747034"], 0x7ffc724d7cc0 /* 10 vars */) = 0 brk(NULL) = 0x555556fc3000 brk(0x555556fc3d00) = 0x555556fc3d00 arch_prctl(ARCH_SET_FS, 0x555556fc3380) = 0 set_tid_address(0x555556fc3650) = 5821 set_robust_list(0x555556fc3660, 24) = 0 rseq(0x555556fc3ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2432747034", 4096) = 28 getrandom("\xaa\x28\x73\xb5\xb2\xe3\xa1\x1f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556fc3d00 brk(0x555556fe4d00) = 0x555556fe4d00 brk(0x555556fe5000) = 0x555556fe5000 mprotect(0x7fe43199e000, 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 5823 attached [pid 5823] set_robust_list(0x555556fc3660, 24) = 0 [pid 5823] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5821] <... clone resumed>, child_tidptr=0x555556fc3650) = 5823 [pid 5823] <... prctl resumed>) = 0 [pid 5823] setpgid(0, 0) = 0 [pid 5823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "1000", 4) = 4 [pid 5823] close(3) = 0 executing program [pid 5823] write(1, "executing program\n", 18) = 18 [pid 5823] memfd_create("syzkaller", 0) = 3 [pid 5823] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe429400000 [pid 5823] 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 5823] munmap(0x7fe429400000, 138412032) = 0 [pid 5823] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5823] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5823] close(3) = 0 [pid 5823] close(4) = 0 [pid 5823] mkdir("./bus", 0777) = 0 [ 75.207339][ T5823] loop0: detected capacity change from 0 to 64 [ 75.247535][ T5823] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN PTI [ 75.260154][ T5823] KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] [ 75.268596][ T5823] CPU: 0 UID: 0 PID: 5823 Comm: syz-executor243 Not tainted 6.13.0-rc3-syzkaller #0 [ 75.277967][ T5823] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 75.288032][ T5823] RIP: 0010:hfs_find_init+0x72/0x1f0 [ 75.293346][ T5823] Code: d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 44 1b 84 ff 48 c7 03 00 00 00 00 48 89 2c 24 4c 8d 75 40 4d 89 f7 49 c1 ef 03 <43> 0f b6 04 2f 84 c0 0f 85 10 01 00 00 41 8b 06 8d 7c 00 04 be c0 [ 75.313048][ T5823] RSP: 0018:ffffc900025af400 EFLAGS: 00010202 [ 75.319127][ T5823] RAX: 1ffff920004b5e9f RBX: ffffc900025af4f8 RCX: ffff88807c050000 [ 75.327106][ T5823] RDX: 0000000000000000 RSI: ffffc900025af4e0 RDI: ffffc900025af4f0 [ 75.335080][ T5823] RBP: 0000000000000000 R08: ffffffff8280707f R09: 0000000000000000 [ 75.343054][ T5823] R10: ffffc900025af4e0 R11: fffff520004b5ea3 R12: ffffc900025af4e0 [ 75.351024][ T5823] R13: dffffc0000000000 R14: 0000000000000040 R15: 0000000000000008 [ 75.358999][ T5823] FS: 0000555556fc3380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 75.367941][ T5823] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.374533][ T5823] CR2: 000055e81c6d8d18 CR3: 000000007589e000 CR4: 00000000003526f0 [ 75.382513][ T5823] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.390487][ T5823] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.398552][ T5823] Call Trace: [ 75.401833][ T5823] [ 75.404765][ T5823] ? __die_body+0x5f/0xb0 [ 75.409104][ T5823] ? die_addr+0xb0/0xe0 [ 75.413267][ T5823] ? exc_general_protection+0x3dd/0x5d0 [ 75.418833][ T5823] ? hfs_get_block+0x26f/0xb60 [ 75.423606][ T5823] ? asm_exc_general_protection+0x26/0x30 [ 75.429349][ T5823] ? hfs_get_block+0x3bf/0xb60 [ 75.434123][ T5823] ? hfs_find_init+0x72/0x1f0 [ 75.438805][ T5823] hfs_get_block+0x4f4/0xb60 [ 75.443408][ T5823] ? __pfx_hfs_get_block+0x10/0x10 [ 75.448542][ T5823] ? _raw_spin_unlock+0x28/0x50 [ 75.453399][ T5823] ? create_empty_buffers+0x471/0x530 [ 75.458791][ T5823] block_read_full_folio+0x3ee/0xae0 [ 75.464086][ T5823] ? __pfx_hfs_get_block+0x10/0x10 [ 75.469205][ T5823] ? __pfx_block_read_full_folio+0x10/0x10 [ 75.475033][ T5823] ? folio_add_lru+0x187/0x230 [ 75.479836][ T5823] filemap_read_folio+0x148/0x3b0 [ 75.484862][ T5823] ? __pfx_hfs_read_folio+0x10/0x10 [ 75.490071][ T5823] ? __pfx_filemap_read_folio+0x10/0x10 [ 75.495649][ T5823] ? __filemap_get_folio+0x848/0x940 [ 75.501062][ T5823] ? hfs_btree_open+0x4cb/0xf40 [ 75.505950][ T5823] do_read_cache_folio+0x373/0x5b0 [ 75.511066][ T5823] ? __pfx_hfs_read_folio+0x10/0x10 [ 75.516276][ T5823] ? do_raw_spin_unlock+0x13c/0x8b0 [ 75.521483][ T5823] read_cache_page+0x5b/0x170 [ 75.526175][ T5823] hfs_btree_open+0x506/0xf40 [ 75.530880][ T5823] hfs_mdb_get+0x1443/0x21b0 [ 75.535483][ T5823] ? __pfx_hfs_mdb_get+0x10/0x10 [ 75.540439][ T5823] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 75.546258][ T5823] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 75.552073][ T5823] ? __raw_spin_lock_init+0x45/0x100 [ 75.557393][ T5823] hfs_fill_super+0x38c/0x6b0 [ 75.562072][ T5823] ? __pfx_hfs_fill_super+0x10/0x10 [ 75.567274][ T5823] ? do_raw_spin_lock+0x14f/0x370 [ 75.572338][ T5823] ? sb_set_blocksize+0x98/0xf0 [ 75.577214][ T5823] ? setup_bdev_super+0x4e6/0x5d0 [ 75.582250][ T5823] get_tree_bdev_flags+0x48c/0x5c0 [ 75.587375][ T5823] ? __pfx_hfs_fill_super+0x10/0x10 [ 75.592576][ T5823] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 75.598219][ T5823] ? hfs_init_fs_context+0x152/0x3e0 [ 75.603508][ T5823] ? cap_capable+0x1b4/0x250 [ 75.608134][ T5823] ? safesetid_security_capable+0xb2/0x1d0 [ 75.613960][ T5823] vfs_get_tree+0x90/0x2b0 [ 75.618395][ T5823] do_new_mount+0x2be/0xb40 [ 75.622917][ T5823] ? __pfx_do_new_mount+0x10/0x10 [ 75.627960][ T5823] __se_sys_mount+0x2d6/0x3c0 [ 75.632639][ T5823] ? __pfx___se_sys_mount+0x10/0x10 [ 75.637858][ T5823] ? do_syscall_64+0x100/0x230 [ 75.642632][ T5823] ? __x64_sys_mount+0x20/0xc0 [ 75.647406][ T5823] do_syscall_64+0xf3/0x230 [ 75.651918][ T5823] ? clear_bhb_loop+0x35/0x90 [ 75.656595][ T5823] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.662499][ T5823] RIP: 0033:0x7fe43192bdea [ 75.666926][ T5823] 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 [ 75.686624][ T5823] RSP: 002b:00007ffeb18093a8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 75.695045][ T5823] RAX: ffffffffffffffda RBX: 00007ffeb18093c0 RCX: 00007fe43192bdea [ 75.703041][ T5823] RDX: 0000000020000140 RSI: 0000000020000000 RDI: 00007ffeb18093c0 [ 75.711037][ T5823] RBP: 0000000000000004 R08: 00007ffeb1809400 R09: 000000000000027d [ 75.719008][ T5823] R10: 0000000000000008 R11: 0000000000000286 R12: 0000000000000008 [ 75.726978][ T5823] R13: 00007ffeb1809400 R14: 0000000000000003 R15: 0000000000008000 [ 75.734956][ T5823] [ 75.737973][ T5823] Modules linked in: [ 75.742059][ T5823] ---[ end trace 0000000000000000 ]--- [ 75.747692][ T5823] RIP: 0010:hfs_find_init+0x72/0x1f0 [ 75.753104][ T5823] Code: d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 44 1b 84 ff 48 c7 03 00 00 00 00 48 89 2c 24 4c 8d 75 40 4d 89 f7 49 c1 ef 03 <43> 0f b6 04 2f 84 c0 0f 85 10 01 00 00 41 8b 06 8d 7c 00 04 be c0 [ 75.772996][ T5823] RSP: 0018:ffffc900025af400 EFLAGS: 00010202 [ 75.779461][ T5823] RAX: 1ffff920004b5e9f RBX: ffffc900025af4f8 RCX: ffff88807c050000 [ 75.787632][ T5823] RDX: 0000000000000000 RSI: ffffc900025af4e0 RDI: ffffc900025af4f0 [ 75.795665][ T5823] RBP: 0000000000000000 R08: ffffffff8280707f R09: 0000000000000000 [ 75.803729][ T5823] R10: ffffc900025af4e0 R11: fffff520004b5ea3 R12: ffffc900025af4e0 [ 75.811747][ T5823] R13: dffffc0000000000 R14: 0000000000000040 R15: 0000000000000008 [ 75.819790][ T5823] FS: 0000555556fc3380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 75.828776][ T5823] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.835428][ T5823] CR2: 000055e81c6d8d18 CR3: 000000007589e000 CR4: 00000000003526f0 [ 75.843504][ T5823] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.851554][ T5823] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.859607][ T5823] Kernel panic - not syncing: Fatal exception [ 75.866008][ T5823] Kernel Offset: disabled [ 75.870332][ T5823] Rebooting in 86400 seconds..