./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor488872092 <...> Warning: Permanently added '10.128.1.74' (ED25519) to the list of known hosts. execve("./syz-executor488872092", ["./syz-executor488872092"], 0x7ffc1773b9f0 /* 10 vars */) = 0 brk(NULL) = 0x555556096000 brk(0x555556096d00) = 0x555556096d00 arch_prctl(ARCH_SET_FS, 0x555556096380) = 0 set_tid_address(0x555556096650) = 5066 set_robust_list(0x555556096660, 24) = 0 rseq(0x555556096ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor488872092", 4096) = 27 getrandom("\xe3\xf1\x0d\x52\xb9\xbd\x09\x4c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556096d00 brk(0x5555560b7d00) = 0x5555560b7d00 brk(0x5555560b8000) = 0x5555560b8000 mprotect(0x7f959f399000, 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) = 0x7f9596e00000 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 munmap(0x7f9596e00000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file1", 0777) = 0 mount("/dev/loop0", "./file1", "ntfs3", MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_I_VERSION, "") = 0 openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 chdir("./file1") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) chdir("./file0") = 0 openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 4 [ 71.559634][ T5066] loop0: detected capacity change from 0 to 4096 [ 71.585935][ T5066] ntfs3: loop0: Different NTFS sector size (4096) and media sector size (512). [ 71.632035][ T5066] general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 71.644328][ T5066] KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027] [ 71.652741][ T5066] CPU: 1 PID: 5066 Comm: syz-executor488 Not tainted 6.8.0-rc3-syzkaller-00317-g7521f258ea30 #0 [ 71.663157][ T5066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 71.673249][ T5066] RIP: 0010:attr_data_read_resident+0xad/0xa80 [ 71.679425][ T5066] Code: 00 00 e8 f6 05 b6 fe bb ea ff ff ff e9 0a 05 00 00 48 8b 04 24 48 8d 58 20 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 35 23 18 ff 4c 8b 33 49 c1 e6 0c 4c [ 71.699026][ T5066] RSP: 0018:ffffc90004217730 EFLAGS: 00010212 [ 71.705094][ T5066] RAX: 0000000000000004 RBX: 0000000000000020 RCX: dffffc0000000000 [ 71.713059][ T5066] RDX: ffff8880297b5940 RSI: 0000000000000000 RDI: 0000000000000000 [ 71.721024][ T5066] RBP: ffff8880246c8108 R08: ffffffff82dd6562 R09: ffffffff82e66a99 [ 71.729001][ T5066] R10: 0000000000000002 R11: ffff8880297b5940 R12: dffffc0000000000 [ 71.736975][ T5066] R13: ffff88807b254a58 R14: 00000000000000a0 R15: ffff88807b2549c0 [ 71.744953][ T5066] FS: 0000555556096380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 71.753883][ T5066] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.760466][ T5066] CR2: 000000000066c7e0 CR3: 000000007cbe4000 CR4: 0000000000350ef0 [ 71.768447][ T5066] Call Trace: [ 71.771726][ T5066] [ 71.774659][ T5066] ? __die_body+0x8b/0xe0 [ 71.779010][ T5066] ? die_addr+0x108/0x140 [ 71.783362][ T5066] ? exc_general_protection+0x3da/0x5c0 [ 71.788955][ T5066] ? asm_exc_general_protection+0x26/0x30 [ 71.794693][ T5066] ? mi_enum_attr+0x349/0x9e0 [ 71.799378][ T5066] ? attr_data_read_resident+0x72/0xa80 [ 71.804931][ T5066] ? attr_data_read_resident+0xad/0xa80 [ 71.810483][ T5066] ? entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 71.816576][ T5066] ntfs_get_block_vbo+0x312/0xd00 [ 71.821624][ T5066] ? __pfx_ntfs_get_block_vbo+0x10/0x10 [ 71.827190][ T5066] ? srso_return_thunk+0x5/0x5f [ 71.832059][ T5066] ? ntfs_get_block_bmap+0x74/0xd0 [ 71.837188][ T5066] generic_block_bmap+0x13c/0x1f0 [ 71.842232][ T5066] ? __pfx_ntfs_get_block_bmap+0x10/0x10 [ 71.847896][ T5066] ? __pfx_generic_block_bmap+0x10/0x10 [ 71.853473][ T5066] ? __might_fault+0xa9/0x120 [ 71.858162][ T5066] ? __pfx_lock_release+0x10/0x10 [ 71.863205][ T5066] ? apparmor_capable+0x138/0x1b0 [ 71.868241][ T5066] ? srso_return_thunk+0x5/0x5f [ 71.873107][ T5066] ? srso_return_thunk+0x5/0x5f [ 71.877974][ T5066] ? __pfx_ntfs_bmap+0x10/0x10 [ 71.882756][ T5066] bmap+0xaa/0xe0 [ 71.886398][ T5066] do_vfs_ioctl+0x2056/0x2b60 [ 71.891092][ T5066] ? __pfx_do_vfs_ioctl+0x10/0x10 [ 71.896130][ T5066] ? __pfx_lock_release+0x10/0x10 [ 71.901172][ T5066] ? srso_return_thunk+0x5/0x5f [ 71.906035][ T5066] ? __kasan_slab_free+0x46/0x70 [ 71.910987][ T5066] ? srso_return_thunk+0x5/0x5f [ 71.915851][ T5066] ? kfree+0x14a/0x380 [ 71.919929][ T5066] ? srso_return_thunk+0x5/0x5f [ 71.924797][ T5066] ? tomoyo_path_number_perm+0x71a/0x880 [ 71.930450][ T5066] ? tomoyo_path_number_perm+0x208/0x880 [ 71.936094][ T5066] ? __pfx_tomoyo_path_number_perm+0x10/0x10 [ 71.942088][ T5066] ? srso_return_thunk+0x5/0x5f [ 71.946977][ T5066] ? __pfx_ptrace_notify+0x10/0x10 [ 71.952108][ T5066] ? srso_return_thunk+0x5/0x5f [ 71.956977][ T5066] ? srso_return_thunk+0x5/0x5f [ 71.961845][ T5066] ? security_file_ioctl+0x87/0xb0 [ 71.966972][ T5066] __se_sys_ioctl+0x81/0x170 [ 71.971576][ T5066] do_syscall_64+0xfb/0x240 [ 71.976098][ T5066] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 71.982006][ T5066] RIP: 0033:0x7f959f307639 [ 71.986421][ T5066] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 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 [ 72.006028][ T5066] RSP: 002b:00007ffd254c3948 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 72.014448][ T5066] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f959f307639 [ 72.022423][ T5066] RDX: 0000000020000040 RSI: 0000000000000001 RDI: 0000000000000004 [ 72.030394][ T5066] RBP: 00007f959f399610 R08: 0000000000000000 R09: 00007ffd254c3b18 [ 72.038368][ T5066] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 72.046341][ T5066] R13: 00007ffd254c3b08 R14: 0000000000000001 R15: 0000000000000001 [ 72.054324][ T5066] [ 72.057340][ T5066] Modules linked in: [ 72.062421][ T5066] ---[ end trace 0000000000000000 ]--- [ 72.067964][ T5066] RIP: 0010:attr_data_read_resident+0xad/0xa80 [ 72.074178][ T5066] Code: 00 00 e8 f6 05 b6 fe bb ea ff ff ff e9 0a 05 00 00 48 8b 04 24 48 8d 58 20 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 35 23 18 ff 4c 8b 33 49 c1 e6 0c 4c [ 72.094178][ T5066] RSP: 0018:ffffc90004217730 EFLAGS: 00010212 [ 72.100254][ T5066] RAX: 0000000000000004 RBX: 0000000000000020 RCX: dffffc0000000000 [ 72.108354][ T5066] RDX: ffff8880297b5940 RSI: 0000000000000000 RDI: 0000000000000000 [ 72.116466][ T5066] RBP: ffff8880246c8108 R08: ffffffff82dd6562 R09: ffffffff82e66a99 [ 72.124475][ T5066] R10: 0000000000000002 R11: ffff8880297b5940 R12: dffffc0000000000 [ 72.132471][ T5066] R13: ffff88807b254a58 R14: 00000000000000a0 R15: ffff88807b2549c0 [ 72.140476][ T5066] FS: 0000555556096380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 72.149535][ T5066] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.156151][ T5066] CR2: 000000000066c7e0 CR3: 000000007cbe4000 CR4: 0000000000350ef0 [ 72.164225][ T5066] Kernel panic - not syncing: Fatal exception [ 72.170557][ T5066] Kernel Offset: disabled [ 72.174874][ T5066] Rebooting in 86400 seconds..