./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2954870915 <...> Warning: Permanently added '10.128.1.43' (ED25519) to the list of known hosts. execve("./syz-executor2954870915", ["./syz-executor2954870915"], 0x7ffe6324fd60 /* 10 vars */) = 0 brk(NULL) = 0x555575096000 brk(0x555575096d00) = 0x555575096d00 arch_prctl(ARCH_SET_FS, 0x555575096380) = 0 set_tid_address(0x555575096650) = 5071 set_robust_list(0x555575096660, 24) = 0 rseq(0x555575096ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2954870915", 4096) = 28 getrandom("\x2e\xaf\xc7\xb5\x0e\x7f\x18\xef", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555575096d00 brk(0x5555750b7d00) = 0x5555750b7d00 brk(0x5555750b8000) = 0x5555750b8000 mprotect(0x7f2b8226a000, 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 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2b79c00000 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 munmap(0x7f2b79c00000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", 0777) = 0 [ 73.943339][ T5071] loop0: detected capacity change from 0 to 64 [ 73.974543][ T5071] general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 73.986895][ T5071] KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] [ 73.995350][ T5071] CPU: 1 PID: 5071 Comm: syz-executor295 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 74.005505][ T5071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 74.015601][ T5071] RIP: 0010:hfs_find_init+0x72/0x1f0 [ 74.021387][ T5071] Code: d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 14 42 79 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 [ 74.041010][ T5071] RSP: 0018:ffffc9000435f2c0 EFLAGS: 00010212 [ 74.047095][ T5071] RAX: 1ffff9200086be77 RBX: ffffc9000435f3b8 RCX: ffff888078d89e00 [ 74.055074][ T5071] RDX: 0000000000000000 RSI: ffffc9000435f3a0 RDI: ffffc9000435f3b0 [ 74.063057][ T5071] RBP: 0000000000000000 R08: ffffffff82803bbf R09: 0000000000000000 [ 74.071038][ T5071] R10: ffffc9000435f3a0 R11: fffff5200086be7b R12: ffffc9000435f3a0 [ 74.079020][ T5071] R13: dffffc0000000000 R14: 0000000000000040 R15: 0000000000000008 [ 74.087019][ T5071] FS: 0000555575096380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 74.095958][ T5071] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.102544][ T5071] CR2: 00000000005fdeb8 CR3: 000000001147a000 CR4: 0000000000350ef0 [ 74.110528][ T5071] Call Trace: [ 74.113843][ T5071] [ 74.116796][ T5071] ? __die_body+0x88/0xe0 [ 74.121134][ T5071] ? die_addr+0x108/0x140 [ 74.125476][ T5071] ? exc_general_protection+0x3dd/0x5d0 [ 74.131425][ T5071] ? asm_exc_general_protection+0x26/0x30 [ 74.137182][ T5071] ? hfs_get_block+0x3bf/0xb60 [ 74.141965][ T5071] ? hfs_find_init+0x72/0x1f0 [ 74.146656][ T5071] hfs_get_block+0x4f4/0xb60 [ 74.151268][ T5071] ? __pfx_hfs_get_block+0x10/0x10 [ 74.156407][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.161272][ T5071] ? _raw_spin_unlock+0x28/0x50 [ 74.166180][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.171043][ T5071] ? create_empty_buffers+0x53e/0x740 [ 74.176436][ T5071] block_read_full_folio+0x430/0xe10 [ 74.181748][ T5071] ? __pfx_hfs_get_block+0x10/0x10 [ 74.186875][ T5071] ? __pfx_block_read_full_folio+0x10/0x10 [ 74.192694][ T5071] ? __pfx_lru_add_fn+0x10/0x10 [ 74.197560][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.202417][ T5071] ? folio_add_lru+0x58f/0xd70 [ 74.207192][ T5071] filemap_read_folio+0x1a2/0x790 [ 74.212223][ T5071] ? __pfx_hfs_read_folio+0x10/0x10 [ 74.217435][ T5071] ? __pfx_filemap_read_folio+0x10/0x10 [ 74.222988][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.227845][ T5071] ? __filemap_get_folio+0x935/0xbc0 [ 74.233132][ T5071] ? __pfx_lock_release+0x10/0x10 [ 74.238166][ T5071] do_read_cache_folio+0x134/0x820 [ 74.243288][ T5071] ? __pfx_hfs_read_folio+0x10/0x10 [ 74.248499][ T5071] do_read_cache_page+0x30/0x200 [ 74.253547][ T5071] hfs_btree_open+0x50b/0xf30 [ 74.258232][ T5071] ? submit_bio+0x2a2/0x3c0 [ 74.262739][ T5071] ? hfs_mdb_get+0x13d2/0x21b0 [ 74.267530][ T5071] hfs_mdb_get+0x1443/0x21b0 [ 74.272128][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.277011][ T5071] ? __pfx_hfs_mdb_get+0x10/0x10 [ 74.281955][ T5071] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 74.287765][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.292616][ T5071] ? lockdep_hardirqs_on+0x99/0x150 [ 74.297820][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.302671][ T5071] ? __raw_spin_lock_init+0x45/0x100 [ 74.307967][ T5071] hfs_fill_super+0x107e/0x1790 [ 74.312859][ T5071] ? __pfx_hfs_fill_super+0x10/0x10 [ 74.318067][ T5071] ? __pfx_vsnprintf+0x10/0x10 [ 74.322836][ T5071] ? do_raw_spin_lock+0x14f/0x370 [ 74.327958][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.332805][ T5071] ? sb_set_blocksize+0x99/0x100 [ 74.337751][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.342603][ T5071] ? setup_bdev_super+0x4b7/0x5b0 [ 74.347633][ T5071] mount_bdev+0x20c/0x2d0 [ 74.351965][ T5071] ? __pfx_hfs_fill_super+0x10/0x10 [ 74.357170][ T5071] ? __pfx_mount_bdev+0x10/0x10 [ 74.362042][ T5071] ? vfs_parse_fs_string+0x190/0x230 [ 74.367337][ T5071] legacy_get_tree+0xf0/0x190 [ 74.372019][ T5071] ? __pfx_hfs_mount+0x10/0x10 [ 74.376792][ T5071] vfs_get_tree+0x92/0x2a0 [ 74.381222][ T5071] do_new_mount+0x2be/0xb40 [ 74.385732][ T5071] ? ns_capable+0x8a/0xf0 [ 74.390062][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.394912][ T5071] ? __pfx_do_new_mount+0x10/0x10 [ 74.399943][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.404796][ T5071] __se_sys_mount+0x2d9/0x3c0 [ 74.409482][ T5071] ? __pfx___se_sys_mount+0x10/0x10 [ 74.414683][ T5071] ? do_syscall_64+0x10a/0x240 [ 74.419446][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.424305][ T5071] ? __x64_sys_mount+0x20/0xc0 [ 74.429097][ T5071] do_syscall_64+0xfd/0x240 [ 74.433609][ T5071] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 74.439522][ T5071] RIP: 0033:0x7f2b821f893a [ 74.443940][ T5071] 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 [ 74.463579][ T5071] RSP: 002b:00007ffe9da45e48 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 74.472005][ T5071] RAX: ffffffffffffffda RBX: 00007ffe9da45e50 RCX: 00007f2b821f893a [ 74.479993][ T5071] RDX: 00000000200000c0 RSI: 00000000200001c0 RDI: 00007ffe9da45e50 [ 74.487975][ T5071] RBP: 0000000000000004 R08: 00007ffe9da45e90 R09: 0000000000000296 [ 74.495951][ T5071] R10: 0000000003008093 R11: 0000000000000286 R12: 00007ffe9da45e90 [ 74.503922][ T5071] R13: 0000000000000003 R14: 0000000000008000 R15: 0000000000000001 [ 74.511905][ T5071] [ 74.514922][ T5071] Modules linked in: [ 74.519187][ T5071] ---[ end trace 0000000000000000 ]--- [ 74.524747][ T5071] RIP: 0010:hfs_find_init+0x72/0x1f0 [ 74.530107][ T5071] Code: d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 14 42 79 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 [ 74.549799][ T5071] RSP: 0018:ffffc9000435f2c0 EFLAGS: 00010212 [ 74.555978][ T5071] RAX: 1ffff9200086be77 RBX: ffffc9000435f3b8 RCX: ffff888078d89e00 [ 74.564041][ T5071] RDX: 0000000000000000 RSI: ffffc9000435f3a0 RDI: ffffc9000435f3b0 [ 74.572033][ T5071] RBP: 0000000000000000 R08: ffffffff82803bbf R09: 0000000000000000 [ 74.580099][ T5071] R10: ffffc9000435f3a0 R11: fffff5200086be7b R12: ffffc9000435f3a0 [ 74.588150][ T5071] R13: dffffc0000000000 R14: 0000000000000040 R15: 0000000000000008 [ 74.596192][ T5071] FS: 0000555575096380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 74.605188][ T5071] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.611775][ T5071] CR2: 00000000005fdeb8 CR3: 000000001147a000 CR4: 0000000000350ef0 [ 74.620095][ T5071] Kernel panic - not syncing: Fatal exception [ 74.626462][ T5071] Kernel Offset: disabled [ 74.630801][ T5071] Rebooting in 86400 seconds..