./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1699798893 <...> Warning: Permanently added '10.128.1.23' (ED25519) to the list of known hosts. execve("./syz-executor1699798893", ["./syz-executor1699798893"], 0x7ffc24f4e9d0 /* 10 vars */) = 0 brk(NULL) = 0x555568260000 brk(0x555568260d00) = 0x555568260d00 arch_prctl(ARCH_SET_FS, 0x555568260380) = 0 set_tid_address(0x555568260650) = 5071 set_robust_list(0x555568260660, 24) = 0 rseq(0x555568260ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1699798893", 4096) = 28 getrandom("\xb4\x9a\xf4\xcb\x42\xac\xe3\x6b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555568260d00 brk(0x555568281d00) = 0x555568281d00 brk(0x555568282000) = 0x555568282000 mprotect(0x7f365f1be000, 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) = 0x7f3656c00000 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(0x7f3656c00000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./bus", 0777) = 0 [ 74.418774][ T5071] loop0: detected capacity change from 0 to 64 [ 74.451533][ T5071] general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 74.463844][ T5071] KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] [ 74.472274][ T5071] CPU: 1 PID: 5071 Comm: syz-executor169 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 74.482351][ T5071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 74.492418][ T5071] RIP: 0010:hfs_find_init+0x72/0x1f0 [ 74.497729][ 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 [ 74.517345][ T5071] RSP: 0018:ffffc900042972c0 EFLAGS: 00010212 [ 74.523418][ T5071] RAX: 1ffff92000852e77 RBX: ffffc900042973b8 RCX: ffff8880111abc00 [ 74.531394][ T5071] RDX: 0000000000000000 RSI: ffffc900042973a0 RDI: ffffc900042973b0 [ 74.539369][ T5071] RBP: 0000000000000000 R08: ffffffff82803bbf R09: 0000000000000000 [ 74.547337][ T5071] R10: ffffc900042973a0 R11: fffff52000852e7b R12: ffffc900042973a0 [ 74.555310][ T5071] R13: dffffc0000000000 R14: 0000000000000040 R15: 0000000000000008 [ 74.563297][ T5071] FS: 0000555568260380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 74.572237][ T5071] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.578823][ T5071] CR2: 00005600e87efa58 CR3: 0000000021692000 CR4: 0000000000350ef0 [ 74.586795][ T5071] Call Trace: [ 74.590068][ T5071] [ 74.593000][ T5071] ? __die_body+0x88/0xe0 [ 74.597335][ T5071] ? die_addr+0x108/0x140 [ 74.601666][ T5071] ? exc_general_protection+0x3dd/0x5d0 [ 74.607238][ T5071] ? asm_exc_general_protection+0x26/0x30 [ 74.612964][ T5071] ? hfs_get_block+0x3bf/0xb60 [ 74.617742][ T5071] ? hfs_find_init+0x72/0x1f0 [ 74.622427][ T5071] hfs_get_block+0x4f4/0xb60 [ 74.627033][ T5071] ? __pfx_hfs_get_block+0x10/0x10 [ 74.632153][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.637014][ T5071] ? _raw_spin_unlock+0x28/0x50 [ 74.641871][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.646720][ T5071] ? create_empty_buffers+0x53e/0x740 [ 74.652099][ T5071] block_read_full_folio+0x430/0xe10 [ 74.657491][ T5071] ? __pfx_hfs_get_block+0x10/0x10 [ 74.662608][ T5071] ? __pfx_block_read_full_folio+0x10/0x10 [ 74.668421][ T5071] ? __pfx_lru_add_fn+0x10/0x10 [ 74.673280][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.678145][ T5071] ? folio_add_lru+0x58f/0xd70 [ 74.682913][ T5071] filemap_read_folio+0x1a2/0x790 [ 74.687943][ T5071] ? __pfx_hfs_read_folio+0x10/0x10 [ 74.693147][ T5071] ? __pfx_filemap_read_folio+0x10/0x10 [ 74.698707][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.703561][ T5071] ? __filemap_get_folio+0x935/0xbc0 [ 74.708847][ T5071] ? __pfx_lock_release+0x10/0x10 [ 74.713876][ T5071] do_read_cache_folio+0x134/0x820 [ 74.719254][ T5071] ? __pfx_hfs_read_folio+0x10/0x10 [ 74.724460][ T5071] do_read_cache_page+0x30/0x200 [ 74.729438][ T5071] hfs_btree_open+0x50b/0xf30 [ 74.734115][ T5071] ? submit_bio+0x2a2/0x3c0 [ 74.738618][ T5071] ? hfs_mdb_get+0x13d2/0x21b0 [ 74.743386][ T5071] hfs_mdb_get+0x1443/0x21b0 [ 74.747990][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.752842][ T5071] ? __pfx_hfs_mdb_get+0x10/0x10 [ 74.757789][ T5071] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 74.763595][ T5071] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 74.769396][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.774289][ T5071] ? __raw_spin_lock_init+0x45/0x100 [ 74.779588][ T5071] hfs_fill_super+0x107e/0x1790 [ 74.784460][ T5071] ? __pfx_hfs_fill_super+0x10/0x10 [ 74.789671][ T5071] ? __pfx_vsnprintf+0x10/0x10 [ 74.794449][ T5071] ? do_raw_spin_lock+0x14f/0x370 [ 74.799498][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.804348][ T5071] ? sb_set_blocksize+0x99/0x100 [ 74.809290][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.814138][ T5071] ? setup_bdev_super+0x4b7/0x5b0 [ 74.819164][ T5071] mount_bdev+0x20c/0x2d0 [ 74.823498][ T5071] ? __pfx_hfs_fill_super+0x10/0x10 [ 74.828703][ T5071] ? __pfx_mount_bdev+0x10/0x10 [ 74.833555][ T5071] ? vfs_parse_fs_string+0x190/0x230 [ 74.838845][ T5071] legacy_get_tree+0xf0/0x190 [ 74.843525][ T5071] ? __pfx_hfs_mount+0x10/0x10 [ 74.848294][ T5071] vfs_get_tree+0x92/0x2a0 [ 74.852740][ T5071] do_new_mount+0x2be/0xb40 [ 74.857287][ T5071] ? ns_capable+0x8a/0xf0 [ 74.861638][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.866489][ T5071] ? __pfx_do_new_mount+0x10/0x10 [ 74.871518][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.876371][ T5071] __se_sys_mount+0x2d9/0x3c0 [ 74.881074][ T5071] ? __pfx___se_sys_mount+0x10/0x10 [ 74.886274][ T5071] ? do_syscall_64+0x10a/0x240 [ 74.891030][ T5071] ? srso_return_thunk+0x5/0x5f [ 74.895879][ T5071] ? __x64_sys_mount+0x20/0xc0 [ 74.900648][ T5071] do_syscall_64+0xfd/0x240 [ 74.905147][ T5071] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 74.911039][ T5071] RIP: 0033:0x7f365f14c8fa [ 74.915467][ 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 [ 74.935092][ T5071] RSP: 002b:00007ffdba2fbc38 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 74.943530][ T5071] RAX: ffffffffffffffda RBX: 00007ffdba2fbc50 RCX: 00007f365f14c8fa [ 74.951503][ T5071] RDX: 0000000020000100 RSI: 00000000200000c0 RDI: 00007ffdba2fbc50 [ 74.959477][ T5071] RBP: 0000000000000004 R08: 00007ffdba2fbc90 R09: 00000000000002ce [ 74.967536][ T5071] R10: 0000000000000410 R11: 0000000000000286 R12: 0000000000000410 [ 74.975504][ T5071] R13: 00007ffdba2fbc90 R14: 0000000000000003 R15: 0000000000008000 [ 74.983485][ T5071] [ 74.986496][ T5071] Modules linked in: [ 74.991148][ T5071] ---[ end trace 0000000000000000 ]--- [ 74.996785][ T5071] RIP: 0010:hfs_find_init+0x72/0x1f0 [ 75.002104][ 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 [ 75.021763][ T5071] RSP: 0018:ffffc900042972c0 EFLAGS: 00010212 [ 75.027875][ T5071] RAX: 1ffff92000852e77 RBX: ffffc900042973b8 RCX: ffff8880111abc00 [ 75.035888][ T5071] RDX: 0000000000000000 RSI: ffffc900042973a0 RDI: ffffc900042973b0 [ 75.043901][ T5071] RBP: 0000000000000000 R08: ffffffff82803bbf R09: 0000000000000000 [ 75.051883][ T5071] R10: ffffc900042973a0 R11: fffff52000852e7b R12: ffffc900042973a0 [ 75.059905][ T5071] R13: dffffc0000000000 R14: 0000000000000040 R15: 0000000000000008 [ 75.067916][ T5071] FS: 0000555568260380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 75.076886][ T5071] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.083506][ T5071] CR2: 00005600e87efa58 CR3: 0000000021692000 CR4: 0000000000350ef0 [ 75.091489][ T5071] Kernel panic - not syncing: Fatal exception [ 75.097757][ T5071] Kernel Offset: disabled [ 75.102095][ T5071] Rebooting in 86400 seconds..