./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3515129699 <...> Warning: Permanently added '10.128.0.92' (ED25519) to the list of known hosts. execve("./syz-executor3515129699", ["./syz-executor3515129699"], 0x7ffe8b43d0d0 /* 10 vars */) = 0 brk(NULL) = 0x55556b2d2000 brk(0x55556b2d2d00) = 0x55556b2d2d00 arch_prctl(ARCH_SET_FS, 0x55556b2d2380) = 0 set_tid_address(0x55556b2d2650) = 5077 set_robust_list(0x55556b2d2660, 24) = 0 rseq(0x55556b2d2ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3515129699", 4096) = 28 getrandom("\x2b\x7f\x5c\x82\xb2\x0a\x2b\x80", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556b2d2d00 brk(0x55556b2f3d00) = 0x55556b2f3d00 brk(0x55556b2f4000) = 0x55556b2f4000 mprotect(0x7fea3f136000, 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./strace-static-x86_64: Process 5078 attached , child_tidptr=0x55556b2d2650) = 5078 [pid 5078] set_robust_list(0x55556b2d2660, 24) = 0 [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5078] setpgid(0, 0) = 0 [pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "1000", 4) = 4 [pid 5078] close(3) = 0 [pid 5078] memfd_create("syzkaller", 0) = 3 [pid 5078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea36c00000 [pid 5078] write(3, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x10\x01\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x01\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x78\x5f\xaa\x3b\xd7\x0e\xce\x68\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 [pid 5078] munmap(0x7fea36c00000, 138412032) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5078] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5078] close(3) = 0 [pid 5078] close(4) = 0 [pid 5078] mkdir("./file1", 0777) = 0 [ 108.452020][ T5078] loop0: detected capacity change from 0 to 4096 [pid 5078] mount("/dev/loop0", "./file1", "ntfs3", MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_I_VERSION, "") = 0 [pid 5078] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5078] chdir("./file1") = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5078] chdir("./file0") = 0 [ 108.492378][ T5078] ntfs3: loop0: Different NTFS sector size (4096) and media sector size (512). [pid 5078] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 4 [ 108.566499][ T5078] general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 108.578815][ T5078] KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027] [ 108.587265][ T5078] CPU: 1 PID: 5078 Comm: syz-executor351 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 108.597382][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 108.607450][ T5078] RIP: 0010:attr_data_read_resident+0xa0/0x6e0 [ 108.613654][ T5078] Code: 89 e6 e8 d3 d1 c2 fe 45 84 e4 0f 85 ad 04 00 00 e8 45 d7 c2 fe 48 8d 7b 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 be 05 00 00 48 8d 7d 10 4c 8b 63 20 48 b8 00 00 [ 108.633375][ T5078] RSP: 0018:ffffc900041979d0 EFLAGS: 00010212 [ 108.639581][ T5078] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff82cb64dd [ 108.647582][ T5078] RDX: 0000000000000004 RSI: ffffffff82cb64eb RDI: 0000000000000020 [ 108.655621][ T5078] RBP: ffff888022016108 R08: 0000000000000001 R09: 0000000000000000 [ 108.663623][ T5078] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 108.671798][ T5078] R13: ffff888022960000 R14: 000000000000000c R15: 0000000000000080 [ 108.679916][ T5078] FS: 000055556b2d2380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 108.688883][ T5078] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 108.695526][ T5078] CR2: 00007fea3f13a0f8 CR3: 00000000768aa000 CR4: 0000000000350ef0 [ 108.703526][ T5078] Call Trace: [ 108.706825][ T5078] [ 108.709771][ T5078] ? show_regs+0x8c/0xa0 [ 108.714045][ T5078] ? die_addr+0x4f/0xd0 [ 108.718317][ T5078] ? exc_general_protection+0x155/0x230 [ 108.723923][ T5078] ? asm_exc_general_protection+0x26/0x30 [ 108.729790][ T5078] ? attr_data_read_resident+0x7d/0x6e0 [ 108.735379][ T5078] ? attr_data_read_resident+0x8b/0x6e0 [ 108.740968][ T5078] ? attr_data_read_resident+0xa0/0x6e0 [ 108.746563][ T5078] ntfs_get_block_vbo+0x6b4/0xec0 [ 108.751642][ T5078] ? srso_return_thunk+0x5/0x5f [ 108.756549][ T5078] ? __pfx_ntfs_get_block_vbo+0x10/0x10 [ 108.762155][ T5078] ? __pfx_ntfs_get_block_bmap+0x10/0x10 [ 108.767842][ T5078] generic_block_bmap+0x126/0x1a0 [ 108.772918][ T5078] ? __pfx_generic_block_bmap+0x10/0x10 [ 108.778508][ T5078] ? srso_return_thunk+0x5/0x5f [ 108.783410][ T5078] ? __pfx___might_resched+0x10/0x10 [ 108.788747][ T5078] ? __pfx_ntfs_bmap+0x10/0x10 [ 108.793601][ T5078] bmap+0xb1/0x120 [ 108.797364][ T5078] ? srso_return_thunk+0x5/0x5f [ 108.802263][ T5078] do_vfs_ioctl+0x103c/0x1ac0 [ 108.806985][ T5078] ? __pfx_do_vfs_ioctl+0x10/0x10 [ 108.812046][ T5078] ? srso_return_thunk+0x5/0x5f [ 108.816993][ T5078] ? find_held_lock+0x2d/0x110 [ 108.821808][ T5078] ? srso_return_thunk+0x5/0x5f [ 108.826723][ T5078] ? srso_return_thunk+0x5/0x5f [ 108.831622][ T5078] ? srso_return_thunk+0x5/0x5f [ 108.836534][ T5078] __x64_sys_ioctl+0x116/0x220 [ 108.841347][ T5078] do_syscall_64+0xd5/0x260 [ 108.845906][ T5078] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 108.851851][ T5078] RIP: 0033:0x7fea3f0a3a99 [ 108.856292][ T5078] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 108.875948][ T5078] RSP: 002b:00007ffc416a8668 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 108.884490][ T5078] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007fea3f0a3a99 [ 108.892522][ T5078] RDX: 0000000020000040 RSI: 0000000000000001 RDI: 0000000000000004 [ 108.900525][ T5078] RBP: 00007fea3f1365f0 R08: 000055556b2d34c0 R09: 000055556b2d34c0 [ 108.908567][ T5078] R10: 000055556b2d34c0 R11: 0000000000000246 R12: 00007ffc416a8690 [ 108.916568][ T5078] R13: 00007ffc416a88b8 R14: 431bde82d7b634db R15: 00007fea3f0ec03b [ 108.924584][ T5078] [ 108.927620][ T5078] Modules linked in: [ 108.931981][ T5078] ---[ end trace 0000000000000000 ]--- [ 108.937531][ T5078] RIP: 0010:attr_data_read_resident+0xa0/0x6e0 [ 108.943948][ T5078] Code: 89 e6 e8 d3 d1 c2 fe 45 84 e4 0f 85 ad 04 00 00 e8 45 d7 c2 fe 48 8d 7b 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 be 05 00 00 48 8d 7d 10 4c 8b 63 20 48 b8 00 00 [ 108.963959][ T5078] RSP: 0018:ffffc900041979d0 EFLAGS: 00010212 [ 108.970110][ T5078] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff82cb64dd [ 108.978167][ T5078] RDX: 0000000000000004 RSI: ffffffff82cb64eb RDI: 0000000000000020 [ 108.986209][ T5078] RBP: ffff888022016108 R08: 0000000000000001 R09: 0000000000000000 [ 108.994204][ T5078] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 109.002260][ T5078] R13: ffff888022960000 R14: 000000000000000c R15: 0000000000000080 [ 109.010381][ T5078] FS: 000055556b2d2380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 109.019373][ T5078] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 109.026010][ T5078] CR2: 00007fea3f13a0f8 CR3: 00000000768aa000 CR4: 0000000000350ef0 [ 109.034004][ T5078] Kernel panic - not syncing: Fatal exception [ 109.040347][ T5078] Kernel Offset: disabled [ 109.044714][ T5078] Rebooting in 86400 seconds..