./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3278887275 <...> Warning: Permanently added '10.128.0.42' (ED25519) to the list of known hosts. execve("./syz-executor3278887275", ["./syz-executor3278887275"], 0x7ffd5ac08f60 /* 10 vars */) = 0 brk(NULL) = 0x555558e0e000 brk(0x555558e0ed00) = 0x555558e0ed00 arch_prctl(ARCH_SET_FS, 0x555558e0e380) = 0 set_tid_address(0x555558e0e650) = 5835 set_robust_list(0x555558e0e660, 24) = 0 rseq(0x555558e0eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3278887275", 4096) = 28 getrandom("\x5a\x88\x62\x7f\xf2\x8b\x0e\x95", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555558e0ed00 brk(0x555558e2fd00) = 0x555558e2fd00 brk(0x555558e30000) = 0x555558e30000 mprotect(0x7f2248b6b000, 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 executing program write(1, "executing program\n", 18) = 18 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2240600000 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(0x7f2240600000, 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 [ 75.359710][ T5835] loop0: detected capacity change from 0 to 64 [ 75.397053][ T5835] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN PTI [ 75.409961][ T5835] KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] [ 75.418399][ T5835] CPU: 0 UID: 0 PID: 5835 Comm: syz-executor327 Not tainted 6.12.0-syzkaller-00171-g23acd177540d #0 [ 75.429177][ T5835] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 75.439246][ T5835] RIP: 0010:hfs_find_init+0x72/0x1f0 [ 75.444566][ T5835] Code: d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 24 c5 75 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 [ 75.464192][ T5835] RSP: 0018:ffffc900031ff420 EFLAGS: 00010202 [ 75.470286][ T5835] RAX: 1ffff9200063fea3 RBX: ffffc900031ff518 RCX: ffff88807e711e00 [ 75.478260][ T5835] RDX: 0000000000000000 RSI: ffffc900031ff500 RDI: ffffc900031ff510 [ 75.486251][ T5835] RBP: 0000000000000000 R08: ffffffff82872bff R09: 0000000000000000 [ 75.494225][ T5835] R10: ffffc900031ff500 R11: fffff5200063fea7 R12: ffffc900031ff500 [ 75.502206][ T5835] R13: dffffc0000000000 R14: 0000000000000040 R15: 0000000000000008 [ 75.510235][ T5835] FS: 0000555558e0e380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 75.519235][ T5835] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.525857][ T5835] CR2: 0000000020002700 CR3: 000000007d6b0000 CR4: 00000000003526f0 [ 75.533863][ T5835] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.541857][ T5835] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.549841][ T5835] Call Trace: [ 75.553122][ T5835] [ 75.556141][ T5835] ? __die_body+0x5f/0xb0 [ 75.560499][ T5835] ? die_addr+0xb0/0xe0 [ 75.564693][ T5835] ? exc_general_protection+0x3dd/0x5d0 [ 75.570284][ T5835] ? asm_exc_general_protection+0x26/0x30 [ 75.576028][ T5835] ? hfs_get_block+0x3bf/0xb60 [ 75.580800][ T5835] ? hfs_find_init+0x72/0x1f0 [ 75.585489][ T5835] hfs_get_block+0x4f4/0xb60 [ 75.590088][ T5835] ? __pfx_hfs_get_block+0x10/0x10 [ 75.595204][ T5835] ? _raw_spin_unlock+0x28/0x50 [ 75.600083][ T5835] ? create_empty_buffers+0x53e/0x740 [ 75.605459][ T5835] ? rcu_is_watching+0x15/0xb0 [ 75.610227][ T5835] block_read_full_folio+0x418/0xcd0 [ 75.615542][ T5835] ? __pfx_hfs_get_block+0x10/0x10 [ 75.620650][ T5835] ? __pfx_block_read_full_folio+0x10/0x10 [ 75.626481][ T5835] ? folio_add_lru+0x1cd/0x4f0 [ 75.631248][ T5835] filemap_read_folio+0x14b/0x630 [ 75.636286][ T5835] ? __pfx_hfs_read_folio+0x10/0x10 [ 75.641511][ T5835] ? __pfx_filemap_read_folio+0x10/0x10 [ 75.647059][ T5835] ? __filemap_get_folio+0x949/0xbd0 [ 75.652343][ T5835] ? __pfx_lock_release+0x10/0x10 [ 75.657376][ T5835] do_read_cache_folio+0x3f5/0x850 [ 75.662538][ T5835] ? __pfx_hfs_read_folio+0x10/0x10 [ 75.668010][ T5835] do_read_cache_page+0x30/0x200 [ 75.673224][ T5835] hfs_btree_open+0x506/0xf40 [ 75.677920][ T5835] hfs_mdb_get+0x1443/0x21b0 [ 75.682522][ T5835] ? __pfx_hfs_mdb_get+0x10/0x10 [ 75.687470][ T5835] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 75.693305][ T5835] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 75.699130][ T5835] ? __raw_spin_lock_init+0x45/0x100 [ 75.704456][ T5835] hfs_fill_super+0x38c/0x6b0 [ 75.709149][ T5835] ? __pfx_hfs_fill_super+0x10/0x10 [ 75.714360][ T5835] ? do_raw_spin_lock+0x14f/0x370 [ 75.719409][ T5835] ? sb_set_blocksize+0x98/0xf0 [ 75.724307][ T5835] ? setup_bdev_super+0x4e6/0x5d0 [ 75.729371][ T5835] get_tree_bdev_flags+0x48c/0x5c0 [ 75.734492][ T5835] ? __pfx_hfs_fill_super+0x10/0x10 [ 75.739715][ T5835] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 75.745377][ T5835] ? hfs_init_fs_context+0x152/0x3e0 [ 75.750666][ T5835] ? cap_capable+0x1b4/0x250 [ 75.755255][ T5835] ? safesetid_security_capable+0xb2/0x1d0 [ 75.761060][ T5835] vfs_get_tree+0x90/0x2b0 [ 75.765484][ T5835] do_new_mount+0x2be/0xb40 [ 75.769984][ T5835] ? __pfx_do_new_mount+0x10/0x10 [ 75.775017][ T5835] __se_sys_mount+0x2d6/0x3c0 [ 75.779692][ T5835] ? __pfx___se_sys_mount+0x10/0x10 [ 75.784891][ T5835] ? exc_page_fault+0x590/0x8c0 [ 75.789760][ T5835] ? __x64_sys_mount+0x20/0xc0 [ 75.794541][ T5835] do_syscall_64+0xf3/0x230 [ 75.799053][ T5835] ? clear_bhb_loop+0x35/0x90 [ 75.803732][ T5835] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.809662][ T5835] RIP: 0033:0x7f2248af98ba [ 75.814103][ T5835] 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 [ 75.835269][ T5835] RSP: 002b:00007ffff331e978 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 75.843705][ T5835] RAX: ffffffffffffffda RBX: 00007ffff331e990 RCX: 00007f2248af98ba [ 75.851685][ T5835] RDX: 00000000200000c0 RSI: 0000000020000200 RDI: 00007ffff331e990 [ 75.859662][ T5835] RBP: 0000000000000004 R08: 00007ffff331e9d0 R09: 000000000000029e [ 75.867728][ T5835] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000 [ 75.875702][ T5835] R13: 00007ffff331e9d0 R14: 0000000000000003 R15: 0000000000008000 [ 75.883683][ T5835] [ 75.886702][ T5835] Modules linked in: [ 75.890837][ T5835] ---[ end trace 0000000000000000 ]--- [ 75.896466][ T5835] RIP: 0010:hfs_find_init+0x72/0x1f0 [ 75.901798][ T5835] Code: d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 24 c5 75 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 [ 75.921578][ T5835] RSP: 0018:ffffc900031ff420 EFLAGS: 00010202 [ 75.927722][ T5835] RAX: 1ffff9200063fea3 RBX: ffffc900031ff518 RCX: ffff88807e711e00 [ 75.935782][ T5835] RDX: 0000000000000000 RSI: ffffc900031ff500 RDI: ffffc900031ff510 [ 75.943786][ T5835] RBP: 0000000000000000 R08: ffffffff82872bff R09: 0000000000000000 [ 75.951821][ T5835] R10: ffffc900031ff500 R11: fffff5200063fea7 R12: ffffc900031ff500 [ 75.959839][ T5835] R13: dffffc0000000000 R14: 0000000000000040 R15: 0000000000000008 [ 75.967847][ T5835] FS: 0000555558e0e380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 75.976859][ T5835] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.983452][ T5835] CR2: 0000000020002700 CR3: 000000007d6b0000 CR4: 00000000003526f0 [ 75.991483][ T5835] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.999506][ T5835] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.007971][ T5835] Kernel panic - not syncing: Fatal exception [ 76.014388][ T5835] Kernel Offset: disabled [ 76.018729][ T5835] Rebooting in 86400 seconds..