./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3033444827 <...> Warning: Permanently added '10.128.1.44' (ED25519) to the list of known hosts. execve("./syz-executor3033444827", ["./syz-executor3033444827"], 0x7ffe97a0ebb0 /* 10 vars */) = 0 brk(NULL) = 0x55559436e000 brk(0x55559436ed00) = 0x55559436ed00 arch_prctl(ARCH_SET_FS, 0x55559436e380) = 0 set_tid_address(0x55559436e650) = 5086 set_robust_list(0x55559436e660, 24) = 0 rseq(0x55559436eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3033444827", 4096) = 28 getrandom("\xe2\x51\x28\x9d\x5c\xc9\xe6\xfc", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55559436ed00 brk(0x55559438fd00) = 0x55559438fd00 brk(0x555594390000) = 0x555594390000 mprotect(0x7f9d561dc000, 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, child_tidptr=0x55559436e650) = 5088 ./strace-static-x86_64: Process 5088 attached [pid 5088] set_robust_list(0x55559436e660, 24) = 0 [pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5088] setpgid(0, 0) = 0 [pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5088] write(3, "1000", 4) = 4 [pid 5088] close(3) = 0 [pid 5088] memfd_create("syzkaller", 0) = 3 [pid 5088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9d4dc00000 [pid 5088] 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 5088] munmap(0x7f9d4dc00000, 138412032) = 0 [pid 5088] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5088] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5088] close(3) = 0 [pid 5088] close(4) = 0 [pid 5088] mkdir("./bus", 0777) = 0 [ 108.341032][ T5088] loop0: detected capacity change from 0 to 64 [ 108.382090][ T5088] general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 108.394391][ T5088] KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] [ 108.402806][ T5088] CPU: 0 PID: 5088 Comm: syz-executor303 Not tainted 6.9.0-rc4-syzkaller-00266-g977b1ef51866 #0 [ 108.413247][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 108.423320][ T5088] RIP: 0010:hfs_find_init+0x74/0x220 [ 108.428679][ T5088] Code: c1 ea 03 80 3c 02 00 0f 85 a4 01 00 00 4c 8d 6b 40 48 c7 45 18 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 53 01 00 00 8b 43 40 be c0 0c [ 108.448345][ T5088] RSP: 0018:ffffc9000322f4a0 EFLAGS: 00010212 [ 108.454421][ T5088] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff826f0242 [ 108.462398][ T5088] RDX: 0000000000000008 RSI: ffffffff826e0ee5 RDI: ffffc9000322f518 [ 108.470374][ T5088] RBP: ffffc9000322f500 R08: 0000000000000004 R09: 0000000000000004 [ 108.478350][ T5088] R10: 0000000000000000 R11: ffffffff936dac68 R12: 0000000000000004 [ 108.486326][ T5088] R13: 0000000000000040 R14: ffff88807f42014a R15: 0000000000000000 [ 108.494307][ T5088] FS: 000055559436e380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 108.503276][ T5088] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 108.509866][ T5088] CR2: 00005557692b01d0 CR3: 000000002eb5a000 CR4: 0000000000350ef0 [ 108.517844][ T5088] Call Trace: [ 108.521134][ T5088] [ 108.524071][ T5088] ? show_regs+0x8c/0xa0 [ 108.528327][ T5088] ? die_addr+0x4f/0xd0 [ 108.532490][ T5088] ? exc_general_protection+0x155/0x230 [ 108.538080][ T5088] ? asm_exc_general_protection+0x26/0x30 [ 108.543816][ T5088] ? hfs_ext_read_extent+0x112/0x9e0 [ 108.549114][ T5088] ? hfs_find_init+0x15/0x220 [ 108.553811][ T5088] ? hfs_find_init+0x74/0x220 [ 108.558510][ T5088] hfs_ext_read_extent+0x19c/0x9e0 [ 108.563633][ T5088] ? __pfx_hfs_ext_read_extent+0x10/0x10 [ 108.569281][ T5088] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 108.574683][ T5088] ? srso_alias_return_thunk+0x5/0xfbef5 [ 108.580341][ T5088] hfs_get_block+0x55f/0x830 [ 108.584948][ T5088] block_read_full_folio+0x392/0xa70 [ 108.590277][ T5088] ? __pfx_hfs_get_block+0x10/0x10 [ 108.595410][ T5088] ? __pfx_block_read_full_folio+0x10/0x10 [ 108.601247][ T5088] ? srso_alias_return_thunk+0x5/0xfbef5 [ 108.606893][ T5088] ? folio_add_lru+0x44e/0x7f0 [ 108.611677][ T5088] ? __pfx_hfs_read_folio+0x10/0x10 [ 108.616902][ T5088] filemap_read_folio+0xea/0x2c0 [ 108.621860][ T5088] ? __pfx_filemap_read_folio+0x10/0x10 [ 108.627439][ T5088] ? srso_alias_return_thunk+0x5/0xfbef5 [ 108.633088][ T5088] ? __filemap_get_folio+0x2ae/0xa90 [ 108.638393][ T5088] ? hfs_btree_open+0x615/0x1050 [ 108.643359][ T5088] do_read_cache_folio+0x207/0x550 [ 108.648493][ T5088] ? __pfx_hfs_read_folio+0x10/0x10 [ 108.653715][ T5088] read_cache_page+0x5b/0x160 [ 108.658415][ T5088] hfs_btree_open+0x662/0x1050 [ 108.663208][ T5088] hfs_mdb_get+0x1624/0x2040 [ 108.667814][ T5088] ? __pfx_hfs_mdb_get+0x10/0x10 [ 108.672769][ T5088] ? srso_alias_return_thunk+0x5/0xfbef5 [ 108.678419][ T5088] ? lockdep_init_map_type+0x16d/0x7d0 [ 108.683895][ T5088] ? srso_alias_return_thunk+0x5/0xfbef5 [ 108.689546][ T5088] ? lockdep_init_map_type+0x16d/0x7d0 [ 108.695026][ T5088] ? __raw_spin_lock_init+0x3a/0x110 [ 108.700333][ T5088] hfs_fill_super+0xb1b/0x16e0 [ 108.705123][ T5088] ? __pfx_hfs_fill_super+0x10/0x10 [ 108.710339][ T5088] ? vsnprintf+0x3cd/0x1880 [ 108.714877][ T5088] ? lock_acquire+0x1b1/0x560 [ 108.719571][ T5088] ? __pfx_snprintf+0x10/0x10 [ 108.724274][ T5088] ? srso_alias_return_thunk+0x5/0xfbef5 [ 108.729921][ T5088] ? sb_set_blocksize+0xf6/0x120 [ 108.734872][ T5088] ? __pfx_hfs_fill_super+0x10/0x10 [ 108.740093][ T5088] ? mount_bdev+0x1e6/0x2d0 [ 108.744620][ T5088] mount_bdev+0x1e6/0x2d0 [ 108.748962][ T5088] ? __pfx_mount_bdev+0x10/0x10 [ 108.753842][ T5088] ? srso_alias_return_thunk+0x5/0xfbef5 [ 108.759497][ T5088] ? apparmor_capable+0x126/0x1e0 [ 108.764535][ T5088] ? __pfx_hfs_mount+0x10/0x10 [ 108.769314][ T5088] legacy_get_tree+0x10c/0x220 [ 108.774116][ T5088] vfs_get_tree+0x92/0x380 [ 108.778564][ T5088] ? srso_alias_return_thunk+0x5/0xfbef5 [ 108.784225][ T5088] path_mount+0x14e6/0x1f20 [ 108.788765][ T5088] ? srso_alias_return_thunk+0x5/0xfbef5 [ 108.794416][ T5088] ? kmem_cache_free+0x12e/0x380 [ 108.799373][ T5088] ? __pfx_path_mount+0x10/0x10 [ 108.804239][ T5088] ? srso_alias_return_thunk+0x5/0xfbef5 [ 108.809889][ T5088] ? putname+0x12e/0x170 [ 108.814156][ T5088] __x64_sys_mount+0x297/0x320 [ 108.818934][ T5088] ? __pfx___x64_sys_mount+0x10/0x10 [ 108.824246][ T5088] ? srso_alias_return_thunk+0x5/0xfbef5 [ 108.829902][ T5088] ? srso_alias_return_thunk+0x5/0xfbef5 [ 108.835621][ T5088] ? _raw_spin_unlock_irq+0x2e/0x50 [ 108.840841][ T5088] ? srso_alias_return_thunk+0x5/0xfbef5 [ 108.846489][ T5088] ? ptrace_notify+0xf1/0x130 [ 108.851304][ T5088] do_syscall_64+0xcf/0x260 [ 108.855823][ T5088] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 108.861749][ T5088] RIP: 0033:0x7f9d56169dea [ 108.866172][ T5088] 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 [ 108.885796][ T5088] RSP: 002b:00007ffc0f057cd8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 108.894225][ T5088] RAX: ffffffffffffffda RBX: 00007ffc0f057cf0 RCX: 00007f9d56169dea [ 108.902204][ T5088] RDX: 0000000020000100 RSI: 00000000200000c0 RDI: 00007ffc0f057cf0 [ 108.910190][ T5088] RBP: 0000000000000004 R08: 00007ffc0f057d30 R09: 00000000000002ce [ 108.918184][ T5088] R10: 0000000000000410 R11: 0000000000000286 R12: 0000000000000410 [ 108.926164][ T5088] R13: 00007ffc0f057d30 R14: 0000000000000003 R15: 0000000000008000 [ 108.934162][ T5088] [ 108.937177][ T5088] Modules linked in: [ 108.941484][ T5088] ---[ end trace 0000000000000000 ]--- [ 108.947064][ T5088] RIP: 0010:hfs_find_init+0x74/0x220 [ 108.952405][ T5088] Code: c1 ea 03 80 3c 02 00 0f 85 a4 01 00 00 4c 8d 6b 40 48 c7 45 18 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 53 01 00 00 8b 43 40 be c0 0c [ 108.972120][ T5088] RSP: 0018:ffffc9000322f4a0 EFLAGS: 00010212 [ 108.978240][ T5088] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff826f0242 [ 108.986269][ T5088] RDX: 0000000000000008 RSI: ffffffff826e0ee5 RDI: ffffc9000322f518 [ 108.994296][ T5088] RBP: ffffc9000322f500 R08: 0000000000000004 R09: 0000000000000004 [ 109.002294][ T5088] R10: 0000000000000000 R11: ffffffff936dac68 R12: 0000000000000004 [ 109.010327][ T5088] R13: 0000000000000040 R14: ffff88807f42014a R15: 0000000000000000 [ 109.018368][ T5088] FS: 000055559436e380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 109.027375][ T5088] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 109.034014][ T5088] CR2: 00005557692b01d0 CR3: 000000002eb5a000 CR4: 0000000000350ef0 [ 109.041998][ T5088] Kernel panic - not syncing: Fatal exception [ 109.048288][ T5088] Kernel Offset: disabled [ 109.052618][ T5088] Rebooting in 86400 seconds..