./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2563198128 <...> Warning: Permanently added '10.128.1.187' (ED25519) to the list of known hosts. execve("./syz-executor2563198128", ["./syz-executor2563198128"], 0x7ffcc66db5e0 /* 10 vars */) = 0 brk(NULL) = 0x5555567be000 brk(0x5555567bed00) = 0x5555567bed00 arch_prctl(ARCH_SET_FS, 0x5555567be380) = 0 set_tid_address(0x5555567be650) = 5057 set_robust_list(0x5555567be660, 24) = 0 rseq(0x5555567beca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2563198128", 4096) = 28 getrandom("\x78\x6c\x4d\x1d\x9d\x43\x6b\x9f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555567bed00 brk(0x5555567dfd00) = 0x5555567dfd00 brk(0x5555567e0000) = 0x5555567e0000 mprotect(0x7f9adde8e000, 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) = 0x7f9ad59de000 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(0x7f9ad59de000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 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 [ 56.987346][ T5057] loop0: detected capacity change from 0 to 64 [ 57.010088][ T5057] general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN [ 57.021831][ T5057] KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] [ 57.030344][ T5057] CPU: 0 PID: 5057 Comm: syz-executor256 Not tainted 6.7.0-rc7-syzkaller-00016-gf5837722ffec #0 [ 57.040749][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 57.050795][ T5057] RIP: 0010:hfs_find_init+0x72/0x1f0 [ 57.056173][ T5057] Code: d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 b4 32 7f 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 0c 01 00 00 41 8b 06 8d 7c 00 04 be c0 [ 57.076407][ T5057] RSP: 0018:ffffc90003d0f2c0 EFLAGS: 00010202 [ 57.082654][ T5057] RAX: 1ffff920007a1e77 RBX: ffffc90003d0f3b8 RCX: ffff88801d2d3b80 [ 57.090624][ T5057] RDX: 0000000000000000 RSI: ffffc90003d0f3a0 RDI: ffffc90003d0f3b0 [ 57.098583][ T5057] RBP: 0000000000000000 R08: ffffffff826c7fff R09: 0000000000000000 [ 57.106536][ T5057] R10: ffffc90003d0f3a0 R11: fffff520007a1e7b R12: ffffc90003d0f3a0 [ 57.114488][ T5057] R13: dffffc0000000000 R14: 0000000000000040 R15: 0000000000000008 [ 57.122463][ T5057] FS: 00005555567be380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 57.131380][ T5057] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.137946][ T5057] CR2: 00000000005fdeb8 CR3: 000000007cd97000 CR4: 00000000003506f0 [ 57.145918][ T5057] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.153919][ T5057] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.161885][ T5057] Call Trace: [ 57.165149][ T5057] [ 57.168068][ T5057] ? __die_body+0x8b/0xe0 [ 57.172400][ T5057] ? die_addr+0xc9/0x100 [ 57.176643][ T5057] ? exc_general_protection+0x3c3/0x5b0 [ 57.182645][ T5057] ? asm_exc_general_protection+0x26/0x30 [ 57.188358][ T5057] ? hfs_get_block+0x3bf/0xb60 [ 57.193124][ T5057] ? hfs_find_init+0x72/0x1f0 [ 57.197814][ T5057] hfs_get_block+0x4f4/0xb60 [ 57.202396][ T5057] ? hfs_free_extents+0x420/0x420 [ 57.207500][ T5057] ? _raw_spin_unlock+0x28/0x40 [ 57.212347][ T5057] ? create_empty_buffers+0x53e/0x740 [ 57.217710][ T5057] block_read_full_folio+0x474/0xea0 [ 57.223000][ T5057] ? hfs_free_extents+0x420/0x420 [ 57.228099][ T5057] ? block_is_partially_uptodate+0x1f0/0x1f0 [ 57.234065][ T5057] ? folio_add_lru+0x9d0/0x9d0 [ 57.239161][ T5057] ? folio_add_lru+0x4b2/0x9d0 [ 57.243906][ T5057] ? folio_add_lru+0x27b/0x9d0 [ 57.248684][ T5057] filemap_read_folio+0x19c/0x780 [ 57.253954][ T5057] ? hfs_writepage+0x30/0x30 [ 57.258533][ T5057] ? maybe_unlock_mmap_for_io+0xe0/0xe0 [ 57.264060][ T5057] ? __filemap_get_folio+0x931/0xbb0 [ 57.269330][ T5057] ? __lock_acquire+0x1fd0/0x1fd0 [ 57.274362][ T5057] do_read_cache_folio+0x134/0x810 [ 57.279471][ T5057] ? hfs_writepage+0x30/0x30 [ 57.284052][ T5057] do_read_cache_page+0x30/0x200 [ 57.288995][ T5057] hfs_btree_open+0x50b/0xf20 [ 57.293666][ T5057] ? hfs_mdb_get+0x13d2/0x21b0 [ 57.298409][ T5057] hfs_mdb_get+0x1443/0x21b0 [ 57.302983][ T5057] ? hfs_xattr_set+0x5b0/0x5b0 [ 57.307916][ T5057] ? lockdep_softirqs_off+0x430/0x430 [ 57.313641][ T5057] ? lockdep_hardirqs_on+0x98/0x140 [ 57.318852][ T5057] ? __raw_spin_lock_init+0x45/0x100 [ 57.324134][ T5057] hfs_fill_super+0x107d/0x1790 [ 57.328985][ T5057] ? hfs_mount+0x40/0x40 [ 57.333229][ T5057] ? clear_nonspinnable+0x60/0x60 [ 57.338235][ T5057] mount_bdev+0x237/0x300 [ 57.342631][ T5057] ? hfs_mount+0x40/0x40 [ 57.346870][ T5057] ? get_tree_bdev+0x5b0/0x5b0 [ 57.351612][ T5057] ? vfs_parse_fs_string+0x190/0x230 [ 57.356890][ T5057] ? vfs_parse_fs_param+0x410/0x410 [ 57.362084][ T5057] ? cap_capable+0x1b4/0x240 [ 57.366672][ T5057] legacy_get_tree+0xef/0x190 [ 57.371365][ T5057] ? hfs_mark_mdb_dirty+0x1c0/0x1c0 [ 57.376562][ T5057] vfs_get_tree+0x8c/0x2a0 [ 57.380958][ T5057] do_new_mount+0x28f/0xae0 [ 57.385452][ T5057] ? do_move_mount_old+0x170/0x170 [ 57.390574][ T5057] __se_sys_mount+0x2d9/0x3c0 [ 57.395229][ T5057] ? __x64_sys_mount+0xc0/0xc0 [ 57.399972][ T5057] ? syscall_enter_from_user_mode+0xa4/0x2d0 [ 57.405933][ T5057] ? syscall_enter_from_user_mode+0xf5/0x2d0 [ 57.411996][ T5057] ? __x64_sys_mount+0x20/0xc0 [ 57.416742][ T5057] do_syscall_64+0x45/0x110 [ 57.421259][ T5057] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 57.427140][ T5057] RIP: 0033:0x7f9adde1c93a [ 57.431539][ T5057] 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 [ 57.451299][ T5057] RSP: 002b:00007ffd754844d8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 57.459700][ T5057] RAX: ffffffffffffffda RBX: 00007ffd754844e0 RCX: 00007f9adde1c93a [ 57.467911][ T5057] RDX: 00000000200000c0 RSI: 00000000200001c0 RDI: 00007ffd754844e0 [ 57.475859][ T5057] RBP: 0000000000000004 R08: 00007ffd75484520 R09: 0000000000000296 [ 57.483809][ T5057] R10: 0000000003008093 R11: 0000000000000286 R12: 00007ffd75484520 [ 57.491764][ T5057] R13: 0000000000000003 R14: 0000000000008000 R15: 0000000000000001 [ 57.499719][ T5057] [ 57.502719][ T5057] Modules linked in: [ 57.506833][ T5057] ---[ end trace 0000000000000000 ]--- [ 57.512300][ T5057] RIP: 0010:hfs_find_init+0x72/0x1f0 [ 57.517741][ T5057] Code: d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 b4 32 7f 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 0c 01 00 00 41 8b 06 8d 7c 00 04 be c0 [ 57.537582][ T5057] RSP: 0018:ffffc90003d0f2c0 EFLAGS: 00010202 [ 57.543638][ T5057] RAX: 1ffff920007a1e77 RBX: ffffc90003d0f3b8 RCX: ffff88801d2d3b80 [ 57.551629][ T5057] RDX: 0000000000000000 RSI: ffffc90003d0f3a0 RDI: ffffc90003d0f3b0 [ 57.559811][ T5057] RBP: 0000000000000000 R08: ffffffff826c7fff R09: 0000000000000000 [ 57.567906][ T5057] R10: ffffc90003d0f3a0 R11: fffff520007a1e7b R12: ffffc90003d0f3a0 [ 57.575901][ T5057] R13: dffffc0000000000 R14: 0000000000000040 R15: 0000000000000008 [ 57.584118][ T5057] FS: 00005555567be380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 57.593144][ T5057] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.599951][ T5057] CR2: 00000000005fdeb8 CR3: 000000007cd97000 CR4: 00000000003506f0 [ 57.607937][ T5057] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.615921][ T5057] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.623962][ T5057] Kernel panic - not syncing: Fatal exception [ 57.630197][ T5057] Kernel Offset: disabled [ 57.634503][ T5057] Rebooting in 86400 seconds..