Warning: Permanently added '10.128.0.9' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 59.008361][ T0] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 59.008372][ T0] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 59.008387][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.8.0-rc4-syzkaller #0 [ 59.008395][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.008417][ T0] RIP: 0010:__switch_to_asm+0x0/0x40 [ 59.008431][ 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 [ 59.008439][ T0] RSP: 0018:ffffc90000d3fd00 EFLAGS: 00010046 [ 59.008450][ T0] RAX: dffffc0000000000 RBX: ffff8880ae735e18 RCX: 0000000000000000 [ 59.008459][ T0] RDX: 1ffff11015ce6bc2 RSI: ffff88809e536140 RDI: ffff8880a9632340 [ 59.008467][ T0] RBP: ffffc90000d3fdd0 R08: 0000000000000001 R09: ffff8880a9632c08 [ 59.008475][ T0] R10: fffffbfff155cb69 R11: 0000000000000000 R12: ffff8880ae735e00 [ 59.008484][ T0] R13: ffff8880a9632340 R14: ffff88809e536140 R15: ffff8880a9632770 [ 59.008503][ T0] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 59.008512][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.008520][ T0] CR2: 00000000ffd2db58 CR3: 00000000a8d6a000 CR4: 00000000001406e0 [ 59.008532][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.008540][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.008544][ T0] Call Trace: [ 59.008563][ T0] __schedule+0x8e1/0x1eb0 [ 59.008582][ T0] ? io_schedule_timeout+0x140/0x140 [ 59.008598][ T0] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.008612][ T0] ? trace_hardirqs_on+0x5f/0x220 [ 59.008628][ T0] ? lockdep_hardirqs_on+0x6a/0xe0 [ 59.008643][ T0] schedule_idle+0x53/0x90 [ 59.008657][ T0] do_idle+0x323/0x6d0 [ 59.008674][ T0] ? arch_cpu_idle_exit+0x70/0x70 [ 59.008686][ T0] ? trace_hardirqs_on+0x5f/0x220 [ 59.008702][ T0] ? lockdep_hardirqs_on+0x6a/0xe0 [ 59.008718][ T0] cpu_startup_entry+0x14/0x20 [ 59.008733][ T0] start_secondary+0x2b3/0x370 [ 59.008749][ T0] ? set_cpu_sibling_map+0x1e80/0x1e80 [ 59.008767][ T0] secondary_startup_64+0xa4/0xb0 [ 59.008777][ T0] Modules linked in: [ 59.008795][ T0] ---[ end trace 40ddf011e3156126 ]--- [ 59.008812][ T0] RIP: 0010:__switch_to_asm+0x0/0x40 [ 59.008825][ 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 [ 59.008832][ T0] RSP: 0018:ffffc90000d3fd00 EFLAGS: 00010046 [ 59.008842][ T0] RAX: dffffc0000000000 RBX: ffff8880ae735e18 RCX: 0000000000000000 [ 59.008851][ T0] RDX: 1ffff11015ce6bc2 RSI: ffff88809e536140 RDI: ffff8880a9632340 [ 59.008859][ T0] RBP: ffffc90000d3fdd0 R08: 0000000000000001 R09: ffff8880a9632c08 [ 59.008867][ T0] R10: fffffbfff155cb69 R11: 0000000000000000 R12: ffff8880ae735e00 [ 59.008876][ T0] R13: ffff8880a9632340 R14: ffff88809e536140 R15: ffff8880a9632770 [ 59.008887][ T0] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 59.008895][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.008904][ T0] CR2: 00000000ffd2db58 CR3: 00000000a8d6a000 CR4: 00000000001406e0 [ 59.008911][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.008919][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.008926][ T0] Kernel panic - not syncing: Fatal exception [ 59.010176][ T0] Kernel Offset: disabled [ 59.364562][ T0] Rebooting in 86400 seconds..