[ 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 '10.128.0.174' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 76.575206][ T8453] kernel profiling enabled (shift: 1000000) [ 76.581747][ T8453] ================================================================================ [ 76.591612][ T8453] UBSAN: shift-out-of-bounds in kernel/profile.c:110:31 [ 76.598564][ T8453] shift exponent 1000000 is too large for 64-bit type 'long int' [ 76.606647][ T8453] CPU: 0 PID: 8453 Comm: syz-executor449 Not tainted 5.14.0-rc6-syzkaller #0 [ 76.615502][ T8453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.625553][ T8453] Call Trace: [ 76.628827][ T8453] dump_stack_lvl+0xcd/0x134 [ 76.633475][ T8453] ubsan_epilogue+0xb/0x5a [ 76.637889][ T8453] __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 [ 76.644666][ T8453] ? __thaw_task+0x90/0x90 [ 76.649072][ T8453] ? sysfs_file_ops+0x1c0/0x1c0 [ 76.653913][ T8453] profile_init+0xfc/0x110 [ 76.658316][ T8453] profiling_store+0x5e/0xd0 [ 76.662894][ T8453] ? kexec_crash_loaded_show+0x30/0x30 [ 76.668340][ T8453] kobj_attr_store+0x50/0x80 [ 76.672917][ T8453] ? kobj_attr_show+0x70/0x70 [ 76.677582][ T8453] sysfs_kf_write+0x110/0x160 [ 76.682250][ T8453] kernfs_fop_write_iter+0x342/0x500 [ 76.687529][ T8453] new_sync_write+0x426/0x650 [ 76.692197][ T8453] ? new_sync_read+0x6e0/0x6e0 [ 76.696958][ T8453] ? lock_release+0x720/0x720 [ 76.701641][ T8453] ? apparmor_file_permission+0x264/0x4e0 [ 76.707379][ T8453] vfs_write+0x75a/0xa40 [ 76.711631][ T8453] ksys_write+0x12d/0x250 [ 76.715955][ T8453] ? __ia32_sys_read+0xb0/0xb0 [ 76.720730][ T8453] ? syscall_enter_from_user_mode+0x21/0x70 [ 76.726641][ T8453] do_syscall_64+0x35/0xb0 [ 76.731068][ T8453] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 76.736955][ T8453] RIP: 0033:0x43ee69 [ 76.740837][ T8453] 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 [ 76.760439][ T8453] RSP: 002b:00007ffd95271fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 76.768843][ T8453] RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043ee69 [ 76.776800][ T8453] RDX: 00000000ffffff82 RSI: 00000000200000c0 RDI: 0000000000000003 [ 76.784759][ T8453] RBP: 0000000000402e50 R08: 0000000000000000 R09: 0000000000400488 [ 76.792717][ T8453] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402ee0 [ 76.800676][ T8453] R13: 0000000000000000 R14: 00000000004ac018 R15: 0000000000400488 [ 76.809077][ T8453] ================================================================================ [ 76.818668][ T8453] Kernel panic - not syncing: panic_on_warn set ... [ 76.825266][ T8453] CPU: 0 PID: 8453 Comm: syz-executor449 Not tainted 5.14.0-rc6-syzkaller #0 [ 76.834078][ T8453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.844135][ T8453] Call Trace: [ 76.847418][ T8453] dump_stack_lvl+0xcd/0x134 [ 76.852026][ T8453] panic+0x306/0x73d [ 76.855926][ T8453] ? __warn_printk+0xf3/0xf3 [ 76.860540][ T8453] ? dump_stack_lvl+0x120/0x134 [ 76.865409][ T8453] ? ubsan_epilogue+0x3e/0x5a [ 76.870103][ T8453] ubsan_epilogue+0x54/0x5a [ 76.874615][ T8453] __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 [ 76.881398][ T8453] ? __thaw_task+0x90/0x90 [ 76.885918][ T8453] ? sysfs_file_ops+0x1c0/0x1c0 [ 76.890774][ T8453] profile_init+0xfc/0x110 [ 76.895198][ T8453] profiling_store+0x5e/0xd0 [ 76.899793][ T8453] ? kexec_crash_loaded_show+0x30/0x30 [ 76.905256][ T8453] kobj_attr_store+0x50/0x80 [ 76.909871][ T8453] ? kobj_attr_show+0x70/0x70 [ 76.914558][ T8453] sysfs_kf_write+0x110/0x160 [ 76.919269][ T8453] kernfs_fop_write_iter+0x342/0x500 [ 76.924610][ T8453] new_sync_write+0x426/0x650 [ 76.929305][ T8453] ? new_sync_read+0x6e0/0x6e0 [ 76.934087][ T8453] ? lock_release+0x720/0x720 [ 76.938772][ T8453] ? apparmor_file_permission+0x264/0x4e0 [ 76.944524][ T8453] vfs_write+0x75a/0xa40 [ 76.948780][ T8453] ksys_write+0x12d/0x250 [ 76.953123][ T8453] ? __ia32_sys_read+0xb0/0xb0 [ 76.957904][ T8453] ? syscall_enter_from_user_mode+0x21/0x70 [ 76.963837][ T8453] do_syscall_64+0x35/0xb0 [ 76.968262][ T8453] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 76.974175][ T8453] RIP: 0033:0x43ee69 [ 76.978074][ T8453] 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 [ 76.997691][ T8453] RSP: 002b:00007ffd95271fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 77.006130][ T8453] RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043ee69 [ 77.014103][ T8453] RDX: 00000000ffffff82 RSI: 00000000200000c0 RDI: 0000000000000003 [ 77.022074][ T8453] RBP: 0000000000402e50 R08: 0000000000000000 R09: 0000000000400488 [ 77.030045][ T8453] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402ee0 [ 77.038031][ T8453] R13: 0000000000000000 R14: 00000000004ac018 R15: 0000000000400488 [ 77.047694][ T8453] Kernel Offset: disabled [ 77.052117][ T8453] Rebooting in 86400 seconds..