Warning: Permanently added '10.128.0.175' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 59.772270][ T0] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 59.772280][ T0] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 59.772292][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-rc4-syzkaller #0 [ 59.772299][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.772320][ T0] RIP: 0010:__switch_to_asm+0x0/0x40 [ 59.772333][ T0] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 59.772339][ T0] RSP: 0018:ffffffff89a07ce8 EFLAGS: 00010046 [ 59.772353][ T0] RAX: dffffc0000000000 RBX: ffff8880ae635e18 RCX: 0000000000000000 [ 59.772361][ T0] RDX: 1ffff11015cc6bc2 RSI: ffff888097bf4540 RDI: ffffffff89a86580 [ 59.772368][ T0] RBP: ffffffff89a07db8 R08: 0000000000000001 R09: ffffffff89a86e48 [ 59.772380][ T0] R10: fffffbfff155cb61 R11: 0000000000000000 R12: ffff8880ae635e00 [ 59.772388][ T0] R13: ffffffff89a86580 R14: ffff888097bf4540 R15: ffffffff89a869b0 [ 59.772398][ T0] FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 59.772406][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.772413][ T0] CR2: 0000000020000180 CR3: 00000000a8e82000 CR4: 00000000001406f0 [ 59.772422][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.772429][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.772432][ T0] Call Trace: [ 59.772449][ T0] __schedule+0x8e1/0x1eb0 [ 59.772465][ T0] ? io_schedule_timeout+0x140/0x140 [ 59.772478][ T0] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.772490][ T0] ? trace_hardirqs_on+0x5f/0x220 [ 59.772503][ T0] ? lockdep_hardirqs_on+0x6a/0xe0 [ 59.772516][ T0] schedule_idle+0x53/0x90 [ 59.772529][ T0] do_idle+0x323/0x6d0 [ 59.772543][ T0] ? arch_cpu_idle_exit+0x70/0x70 [ 59.772560][ T0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 59.772572][ T0] cpu_startup_entry+0x14/0x20 [ 59.772586][ T0] start_kernel+0x9cb/0xa06 [ 59.772600][ T0] ? mem_encrypt_init+0x5/0x5 [ 59.772614][ T0] ? x86_cpuid_vendor+0x84/0x90 [ 59.772628][ T0] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 59.772640][ T0] ? load_ucode_bsp+0x1b7/0x1f7 [ 59.772654][ T0] secondary_startup_64+0xa4/0xb0 [ 59.772663][ T0] Modules linked in: [ 59.772680][ T0] ---[ end trace 92208462f40bd2d1 ]--- [ 59.772693][ T0] RIP: 0010:__switch_to_asm+0x0/0x40 [ 59.772704][ T0] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 59.772710][ T0] RSP: 0018:ffffffff89a07ce8 EFLAGS: 00010046 [ 59.772719][ T0] RAX: dffffc0000000000 RBX: ffff8880ae635e18 RCX: 0000000000000000 [ 59.772726][ T0] RDX: 1ffff11015cc6bc2 RSI: ffff888097bf4540 RDI: ffffffff89a86580 [ 59.772733][ T0] RBP: ffffffff89a07db8 R08: 0000000000000001 R09: ffffffff89a86e48 [ 59.772740][ T0] R10: fffffbfff155cb61 R11: 0000000000000000 R12: ffff8880ae635e00 [ 59.772747][ T0] R13: ffffffff89a86580 R14: ffff888097bf4540 R15: ffffffff89a869b0 [ 59.772756][ T0] FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 59.772764][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.772771][ T0] CR2: 0000000020000180 CR3: 00000000a8e82000 CR4: 00000000001406f0 [ 59.772777][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.772784][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.772790][ T0] Kernel panic - not syncing: Fatal exception [ 59.773907][ T0] Kernel Offset: disabled [ 60.135200][ T0] Rebooting in 86400 seconds..