[ 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. [ 30.420855][ T6521] bash (6521) used greatest stack depth: 24176 bytes left Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.50' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 761.156859][ T7555] ------------[ cut here ]------------ [ 761.163217][ T7555] do not call blocking ops when !TASK_RUNNING; state=8 set at [<00000000974f99eb>] ptrace_stop+0x40/0xa20 [ 761.176928][ T7555] WARNING: CPU: 0 PID: 7555 at kernel/sched/core.c:6888 __might_sleep+0xed/0x100 [ 761.186707][ T7555] Kernel panic - not syncing: panic_on_warn set ... [ 761.193317][ T7555] CPU: 0 PID: 7555 Comm: syz-executor533 Not tainted 5.8.0-rc6-syzkaller #0 [ 761.201969][ T7555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 761.212009][ T7555] Call Trace: [ 761.215368][ T7555] dump_stack+0x1f0/0x31e [ 761.219771][ T7555] panic+0x264/0x7a0 [ 761.223668][ T7555] ? __warn+0x102/0x250 [ 761.227813][ T7555] ? __might_sleep+0xed/0x100 [ 761.232477][ T7555] ? __might_sleep+0xed/0x100 [ 761.237139][ T7555] __warn+0x227/0x250 [ 761.241114][ T7555] ? __might_sleep+0xed/0x100 [ 761.245779][ T7555] report_bug+0x1b1/0x2e0 [ 761.250146][ T7555] handle_bug+0x42/0x80 [ 761.254295][ T7555] exc_invalid_op+0x16/0x40 [ 761.258820][ T7555] asm_exc_invalid_op+0x12/0x20 [ 761.263659][ T7555] RIP: 0010:__might_sleep+0xed/0x100 [ 761.268938][ T7555] Code: fc ff df 41 80 3c 06 00 74 08 48 89 ef e8 0b 23 62 00 48 8b 4d 00 48 c7 c7 a1 88 08 89 48 89 de 48 89 ca 31 c0 e8 c3 d5 f4 ff <0f> 0b eb 8e 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 55 41 57 [ 761.288616][ T7555] RSP: 0018:ffffc90002577c20 EFLAGS: 00010246 [ 761.294670][ T7555] RAX: d15eaf4fac245500 RBX: 0000000000000008 RCX: ffff888091302040 [ 761.302628][ T7555] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 761.310584][ T7555] RBP: ffff888091303480 R08: ffffffff815dd349 R09: ffffed1015d062c0 [ 761.318541][ T7555] R10: ffffed1015d062c0 R11: 0000000000000000 R12: ffffffff89085609 [ 761.326613][ T7555] R13: ffff888091302050 R14: 1ffff11012260690 R15: 0000000000000039 [ 761.334651][ T7555] ? vprintk_emit+0x339/0x3c0 [ 761.339333][ T7555] ptrace_stop+0x535/0xa20 [ 761.343741][ T7555] get_signal+0xa50/0x1d30 [ 761.348188][ T7555] ? trace_sched_process_wait+0x2b0/0x2b0 [ 761.353958][ T7555] do_signal+0x33/0x610 [ 761.358131][ T7555] ? rcu_read_lock_sched_held+0x2f/0xa0 [ 761.363730][ T7555] ? __prepare_exit_to_usermode+0x81/0x1e0 [ 761.369530][ T7555] __prepare_exit_to_usermode+0xd7/0x1e0 [ 761.375149][ T7555] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 761.381654][ T7555] do_syscall_64+0x7f/0xe0 [ 761.386058][ T7555] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 761.391935][ T7555] RIP: 0033:0x4468a9 [ 761.395809][ T7555] Code: Bad RIP value. [ 761.399859][ T7555] RSP: 002b:00007fc33e406db8 EFLAGS: 00000246 ORIG_RAX: 000000000000003d [ 761.408252][ T7555] RAX: fffffffffffffe00 RBX: 00000000006dbc28 RCX: 00000000004468a9 [ 761.416227][ T7555] RDX: 0000000080000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 761.424189][ T7555] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 761.432146][ T7555] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 761.440119][ T7555] R13: 00007ffc2f11817f R14: 00007fc33e4079c0 R15: 0000000000000000 [ 761.449469][ T7555] Kernel Offset: disabled [ 761.453824][ T7555] Rebooting in 86400 seconds..