[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.48' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 40.368121][ T8403] kernel profiling enabled (shift: 1000000) [ 40.374191][ T8403] ================================================================================ [ 40.383663][ T8403] UBSAN: shift-out-of-bounds in kernel/profile.c:110:31 [ 40.390866][ T8403] shift exponent 1000000 is too large for 64-bit type 'long' [ 40.398269][ T8403] CPU: 0 PID: 8403 Comm: syz-executor574 Tainted: G W 5.13.0-syzkaller #0 [ 40.408068][ T8403] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.418217][ T8403] Call Trace: [ 40.421567][ T8403] dump_stack_lvl+0x1d3/0x29f [ 40.426241][ T8403] ? show_regs_print_info+0x12/0x12 [ 40.431516][ T8403] ? vsnprintf+0x19e/0x1d60 [ 40.435998][ T8403] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 40.441708][ T8403] ? get_option+0x128/0x1e0 [ 40.446217][ T8403] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 40.452018][ T8403] __ubsan_handle_shift_out_of_bounds+0x42e/0x4d0 [ 40.458431][ T8403] ? asan.module_dtor+0x20/0x20 [ 40.463283][ T8403] ? __kmalloc+0x2f8/0x390 [ 40.467684][ T8403] ? __virt_addr_valid+0x21b/0x2d0 [ 40.472799][ T8403] profile_init+0x12e/0x140 [ 40.477311][ T8403] profiling_store+0x59/0xc0 [ 40.481898][ T8403] ? sysfs_kf_read+0x380/0x380 [ 40.486694][ T8403] kernfs_fop_write_iter+0x3b6/0x510 [ 40.492048][ T8403] vfs_write+0xa39/0xc90 [ 40.496447][ T8403] ? file_end_write+0x220/0x220 [ 40.501296][ T8403] ? trace_lock_release+0x4f/0x140 [ 40.506590][ T8403] ? read_lock_is_recursive+0x10/0x10 [ 40.511958][ T8403] ? __lock_acquire+0x6100/0x6100 [ 40.516989][ T8403] ? __fdget_pos+0x25e/0x2f0 [ 40.521788][ T8403] ksys_write+0x171/0x2a0 [ 40.526106][ T8403] ? __ia32_sys_read+0x80/0x80 [ 40.530934][ T8403] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 40.536904][ T8403] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 40.542872][ T8403] do_syscall_64+0x3d/0xb0 [ 40.547284][ T8403] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 40.553250][ T8403] RIP: 0033:0x43ee69 [ 40.557129][ T8403] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 40.576976][ T8403] RSP: 002b:00007ffff76818d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 40.585461][ T8403] RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043ee69 [ 40.593732][ T8403] RDX: 00000000ffffff82 RSI: 00000000200000c0 RDI: 0000000000000003 [ 40.601862][ T8403] RBP: 0000000000402e50 R08: 0000000000000000 R09: 0000000000400488 [ 40.609911][ T8403] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402ee0 [ 40.617874][ T8403] R13: 0000000000000000 R14: 00000000004ac018 R15: 0000000000400488 [ 40.626769][ T8403] ================================================================================ [ 40.636098][ T8403] Kernel panic - not syncing: panic_on_warn set ... [ 40.642680][ T8403] CPU: 0 PID: 8403 Comm: syz-executor574 Tainted: G W 5.13.0-syzkaller #0 [ 40.652496][ T8403] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.662655][ T8403] Call Trace: [ 40.665929][ T8403] dump_stack_lvl+0x1ae/0x29f [ 40.670622][ T8403] ? show_regs_print_info+0x12/0x12 [ 40.675832][ T8403] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 40.681531][ T8403] panic+0x2e1/0x850 [ 40.685418][ T8403] ? __ubsan_handle_shift_out_of_bounds+0x451/0x4d0 [ 40.691981][ T8403] ? nmi_panic+0x90/0x90 [ 40.696199][ T8403] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 40.701911][ T8403] ? get_option+0x128/0x1e0 [ 40.706393][ T8403] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 40.712174][ T8403] __ubsan_handle_shift_out_of_bounds+0x4c8/0x4d0 [ 40.718642][ T8403] ? asan.module_dtor+0x20/0x20 [ 40.723480][ T8403] ? __kmalloc+0x2f8/0x390 [ 40.727871][ T8403] ? __virt_addr_valid+0x21b/0x2d0 [ 40.732957][ T8403] profile_init+0x12e/0x140 [ 40.737435][ T8403] profiling_store+0x59/0xc0 [ 40.742057][ T8403] ? sysfs_kf_read+0x380/0x380 [ 40.746818][ T8403] kernfs_fop_write_iter+0x3b6/0x510 [ 40.752101][ T8403] vfs_write+0xa39/0xc90 [ 40.756319][ T8403] ? file_end_write+0x220/0x220 [ 40.761143][ T8403] ? trace_lock_release+0x4f/0x140 [ 40.766227][ T8403] ? read_lock_is_recursive+0x10/0x10 [ 40.771574][ T8403] ? __lock_acquire+0x6100/0x6100 [ 40.776590][ T8403] ? __fdget_pos+0x25e/0x2f0 [ 40.781153][ T8403] ksys_write+0x171/0x2a0 [ 40.785475][ T8403] ? __ia32_sys_read+0x80/0x80 [ 40.790387][ T8403] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 40.796340][ T8403] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 40.802296][ T8403] do_syscall_64+0x3d/0xb0 [ 40.806689][ T8403] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 40.812559][ T8403] RIP: 0033:0x43ee69 [ 40.816430][ T8403] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 40.836032][ T8403] RSP: 002b:00007ffff76818d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 40.844426][ T8403] RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043ee69 [ 40.852558][ T8403] RDX: 00000000ffffff82 RSI: 00000000200000c0 RDI: 0000000000000003 [ 40.860518][ T8403] RBP: 0000000000402e50 R08: 0000000000000000 R09: 0000000000400488 [ 40.868463][ T8403] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402ee0 [ 40.876412][ T8403] R13: 0000000000000000 R14: 00000000004ac018 R15: 0000000000400488 [ 40.886167][ T8403] Kernel Offset: disabled [ 40.890489][ T8403] Rebooting in 86400 seconds..