./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor458538088 <...> Warning: Permanently added '10.128.0.181' (ECDSA) to the list of known hosts. execve("./syz-executor458538088", ["./syz-executor458538088"], 0x7ffdfbdfdc50 /* 10 vars */) = 0 brk(NULL) = 0x555556c37000 brk(0x555556c37c40) = 0x555556c37c40 arch_prctl(ARCH_SET_FS, 0x555556c37300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor458538088", 4096) = 27 brk(0x555556c58c40) = 0x555556c58c40 brk(0x555556c59000) = 0x555556c59000 mprotect(0x7fd6d3352000, 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) = 0x7fd6cae79000 write(3, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\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\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xc8\x0f\x00\x00\x8f\x24\x2d\x5f\x49\x6d\x50\x0b\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 munmap(0x7fd6cae79000, 2097152) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 mkdir("./bus", 0777) = 0 syzkaller login: [ 41.954451][ T4999] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4999 'syz-executor458' [ 41.982702][ T4999] loop0: detected capacity change from 0 to 4096 [ 41.992758][ T4999] ================================================================================ [ 42.002184][ T4999] UBSAN: shift-out-of-bounds in fs/ntfs3/super.c:799:9 [ 42.009133][ T4999] shift exponent 56 is too large for 32-bit type 'unsigned int' [ 42.017582][ T4999] CPU: 0 PID: 4999 Comm: syz-executor458 Not tainted 6.4.0-rc6-syzkaller-00195-g40f71e7cd3c6 #0 [ 42.027972][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 42.038004][ T4999] Call Trace: [ 42.041286][ T4999] [ 42.044194][ T4999] dump_stack_lvl+0x136/0x150 [ 42.049005][ T4999] __ubsan_handle_shift_out_of_bounds+0x221/0x5a0 [ 42.055442][ T4999] ntfs_fill_super.cold+0x1b9/0x3da [ 42.060640][ T4999] ? put_ntfs+0x330/0x330 [ 42.064955][ T4999] ? vsprintf+0x30/0x30 [ 42.069200][ T4999] ? wait_for_completion_io_timeout+0x20/0x20 [ 42.075342][ T4999] ? set_blocksize+0x2d8/0x370 [ 42.080099][ T4999] get_tree_bdev+0x44a/0x770 [ 42.084674][ T4999] ? put_ntfs+0x330/0x330 [ 42.088988][ T4999] vfs_get_tree+0x8d/0x350 [ 42.093385][ T4999] path_mount+0x134b/0x1e40 [ 42.097872][ T4999] ? kmem_cache_free+0xe9/0x480 [ 42.102792][ T4999] ? finish_automount+0x9b0/0x9b0 [ 42.107800][ T4999] ? putname+0x102/0x140 [ 42.112126][ T4999] __x64_sys_mount+0x283/0x300 [ 42.116900][ T4999] ? copy_mnt_ns+0xb30/0xb30 [ 42.121494][ T4999] ? lockdep_hardirqs_on+0x7d/0x100 [ 42.126695][ T4999] ? _raw_spin_unlock_irq+0x2e/0x50 [ 42.131885][ T4999] ? ptrace_notify+0xfe/0x140 [ 42.136576][ T4999] do_syscall_64+0x39/0xb0 [ 42.140995][ T4999] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 42.146874][ T4999] RIP: 0033:0x7fd6d32c6afa [ 42.151269][ T4999] Code: 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 42.170856][ T4999] RSP: 002b:00007ffcaef0e488 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 42.179245][ T4999] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd6d32c6afa [ 42.187194][ T4999] RDX: 000000002001f740 RSI: 0000000020000180 RDI: 00007ffcaef0e4a0 [ 42.195140][ T4999] RBP: 00007ffcaef0e4a0 R08: 00007ffcaef0e4e0 R09: 000000000001f76a [ 42.203085][ T4999] R10: 0000000000004010 R11: 0000000000000286 R12: 0000000000000004 [ 42.211033][ T4999] R13: 0000555556c372c0 R14: 0000000000004010 R15: 00007ffcaef0e4e0 [ 42.218988][ T4999] [ 42.222198][ T4999] ================================================================================ [ 42.231522][ T4999] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 42.238713][ T4999] CPU: 0 PID: 4999 Comm: syz-executor458 Not tainted 6.4.0-rc6-syzkaller-00195-g40f71e7cd3c6 #0 [ 42.249110][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 42.259149][ T4999] Call Trace: [ 42.262418][ T4999] [ 42.265336][ T4999] dump_stack_lvl+0xd9/0x150 [ 42.269921][ T4999] panic+0x686/0x730 [ 42.273814][ T4999] ? panic_smp_self_stop+0xa0/0xa0 [ 42.278918][ T4999] ? syslog_print_all+0x3a0/0x3a0 [ 42.283943][ T4999] check_panic_on_warn+0xb1/0xc0 [ 42.288876][ T4999] __ubsan_handle_shift_out_of_bounds+0x249/0x5a0 [ 42.295300][ T4999] ntfs_fill_super.cold+0x1b9/0x3da [ 42.300503][ T4999] ? put_ntfs+0x330/0x330 [ 42.304825][ T4999] ? vsprintf+0x30/0x30 [ 42.309055][ T4999] ? wait_for_completion_io_timeout+0x20/0x20 [ 42.315117][ T4999] ? set_blocksize+0x2d8/0x370 [ 42.319876][ T4999] get_tree_bdev+0x44a/0x770 [ 42.324454][ T4999] ? put_ntfs+0x330/0x330 [ 42.328777][ T4999] vfs_get_tree+0x8d/0x350 [ 42.333182][ T4999] path_mount+0x134b/0x1e40 [ 42.337678][ T4999] ? kmem_cache_free+0xe9/0x480 [ 42.342520][ T4999] ? finish_automount+0x9b0/0x9b0 [ 42.347539][ T4999] ? putname+0x102/0x140 [ 42.351772][ T4999] __x64_sys_mount+0x283/0x300 [ 42.356525][ T4999] ? copy_mnt_ns+0xb30/0xb30 [ 42.361102][ T4999] ? lockdep_hardirqs_on+0x7d/0x100 [ 42.366297][ T4999] ? _raw_spin_unlock_irq+0x2e/0x50 [ 42.371487][ T4999] ? ptrace_notify+0xfe/0x140 [ 42.376155][ T4999] do_syscall_64+0x39/0xb0 [ 42.380558][ T4999] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 42.386464][ T4999] RIP: 0033:0x7fd6d32c6afa [ 42.390867][ T4999] Code: 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 42.410636][ T4999] RSP: 002b:00007ffcaef0e488 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 42.419037][ T4999] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd6d32c6afa [ 42.426995][ T4999] RDX: 000000002001f740 RSI: 0000000020000180 RDI: 00007ffcaef0e4a0 [ 42.434952][ T4999] RBP: 00007ffcaef0e4a0 R08: 00007ffcaef0e4e0 R09: 000000000001f76a [ 42.442909][ T4999] R10: 0000000000004010 R11: 0000000000000286 R12: 0000000000000004 [ 42.450864][ T4999] R13: 0000555556c372c0 R14: 0000000000004010 R15: 00007ffcaef0e4e0 [ 42.458833][ T4999] [ 42.462831][ T4999] Kernel Offset: disabled [ 42.467225][ T4999] Rebooting in 86400 seconds..