[ 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 '10.128.1.40' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 72.015124][ T8446] kernel profiling enabled (shift: 1000000) [ 72.021247][ T8446] ================================================================================ [ 72.031457][ T8446] UBSAN: shift-out-of-bounds in kernel/profile.c:110:31 [ 72.038765][ T8446] shift exponent 1000000 is too large for 64-bit type 'long int' [ 72.047418][ T8446] CPU: 0 PID: 8446 Comm: syz-executor392 Not tainted 5.14.0-syzkaller #0 [ 72.056103][ T8446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.066161][ T8446] Call Trace: [ 72.069540][ T8446] dump_stack_lvl+0xcd/0x134 [ 72.074139][ T8446] ubsan_epilogue+0xb/0x5a [ 72.078542][ T8446] __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 [ 72.085404][ T8446] ? __thaw_task+0x90/0x90 [ 72.089812][ T8446] ? sysfs_file_ops+0x1c0/0x1c0 [ 72.094650][ T8446] profile_init+0xfc/0x110 [ 72.099055][ T8446] profiling_store+0x5e/0xd0 [ 72.103629][ T8446] ? kexec_crash_loaded_show+0x30/0x30 [ 72.109072][ T8446] kobj_attr_store+0x50/0x80 [ 72.113651][ T8446] ? kobj_attr_show+0x70/0x70 [ 72.118747][ T8446] sysfs_kf_write+0x110/0x160 [ 72.123412][ T8446] kernfs_fop_write_iter+0x342/0x500 [ 72.128687][ T8446] new_sync_write+0x426/0x650 [ 72.133371][ T8446] ? new_sync_read+0x6e0/0x6e0 [ 72.138125][ T8446] ? lock_release+0x720/0x720 [ 72.142796][ T8446] ? apparmor_file_permission+0x264/0x4e0 [ 72.148509][ T8446] vfs_write+0x75a/0xa40 [ 72.152751][ T8446] ksys_write+0x12d/0x250 [ 72.157069][ T8446] ? __ia32_sys_read+0xb0/0xb0 [ 72.161832][ T8446] ? syscall_enter_from_user_mode_prepare+0x17/0x40 [ 72.168421][ T8446] __do_fast_syscall_32+0x65/0xf0 [ 72.173429][ T8446] do_fast_syscall_32+0x2f/0x70 [ 72.178267][ T8446] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 72.184584][ T8446] RIP: 0023:0xf7f20549 [ 72.188636][ T8446] Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 [ 72.208308][ T8446] RSP: 002b:00000000ffac8fec EFLAGS: 00000246 ORIG_RAX: 0000000000000004 [ 72.216704][ T8446] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000200000c0 [ 72.224659][ T8446] RDX: 00000000ffffff82 RSI: 00000000ffac9040 RDI: 00000000080e3000 [ 72.232611][ T8446] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 72.240560][ T8446] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 72.248511][ T8446] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 72.256776][ T8446] ================================================================================ [ 72.266159][ T8446] Kernel panic - not syncing: panic_on_warn set ... [ 72.272741][ T8446] CPU: 0 PID: 8446 Comm: syz-executor392 Not tainted 5.14.0-syzkaller #0 [ 72.281156][ T8446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.291210][ T8446] Call Trace: [ 72.294487][ T8446] dump_stack_lvl+0xcd/0x134 [ 72.299091][ T8446] panic+0x306/0x73d [ 72.302983][ T8446] ? __warn_printk+0xf3/0xf3 [ 72.307602][ T8446] ? dump_stack_lvl+0x120/0x134 [ 72.312459][ T8446] ? ubsan_epilogue+0x3e/0x5a [ 72.317148][ T8446] ubsan_epilogue+0x54/0x5a [ 72.321653][ T8446] __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 [ 72.328425][ T8446] ? __thaw_task+0x90/0x90 [ 72.332852][ T8446] ? sysfs_file_ops+0x1c0/0x1c0 [ 72.337703][ T8446] profile_init+0xfc/0x110 [ 72.342118][ T8446] profiling_store+0x5e/0xd0 [ 72.346706][ T8446] ? kexec_crash_loaded_show+0x30/0x30 [ 72.352163][ T8446] kobj_attr_store+0x50/0x80 [ 72.356757][ T8446] ? kobj_attr_show+0x70/0x70 [ 72.361438][ T8446] sysfs_kf_write+0x110/0x160 [ 72.366122][ T8446] kernfs_fop_write_iter+0x342/0x500 [ 72.371415][ T8446] new_sync_write+0x426/0x650 [ 72.376103][ T8446] ? new_sync_read+0x6e0/0x6e0 [ 72.380873][ T8446] ? lock_release+0x720/0x720 [ 72.385545][ T8446] ? apparmor_file_permission+0x264/0x4e0 [ 72.391282][ T8446] vfs_write+0x75a/0xa40 [ 72.395532][ T8446] ksys_write+0x12d/0x250 [ 72.399868][ T8446] ? __ia32_sys_read+0xb0/0xb0 [ 72.404641][ T8446] ? syscall_enter_from_user_mode_prepare+0x17/0x40 [ 72.411239][ T8446] __do_fast_syscall_32+0x65/0xf0 [ 72.416266][ T8446] do_fast_syscall_32+0x2f/0x70 [ 72.421120][ T8446] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 72.427464][ T8446] RIP: 0023:0xf7f20549 [ 72.431636][ T8446] Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 [ 72.451244][ T8446] RSP: 002b:00000000ffac8fec EFLAGS: 00000246 ORIG_RAX: 0000000000000004 [ 72.459657][ T8446] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000200000c0 [ 72.467738][ T8446] RDX: 00000000ffffff82 RSI: 00000000ffac9040 RDI: 00000000080e3000 [ 72.475974][ T8446] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 72.483940][ T8446] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 72.491908][ T8446] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 72.501426][ T8446] Kernel Offset: disabled [ 72.505834][ T8446] Rebooting in 86400 seconds..