general protection fault in account_kernel

general protection fault in account_kernel_stack (2)
Status: moderation: reported on 2020/09/03 02:08
Reported-by: syzbot+1ff00be9dd24594ed8e1@syzkaller.appspotmail.com
First crash: 30d, last: 27d

similar bugs (1):
Kernel	Title	Repro	Bisected	Count	Last	Reported	Patched	Status
upstream	general protection fault in account_kernel_stack			1	1014d	1012d	0/17	closed as invalid on 2018/02/13 20:04

Sample crash report:

general protection fault, probably for non-canonical address 0xe000ea000000ee00: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0x0007700000077000-0x0007700000077007]
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.9.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:account_kernel_stack+0xae/0x5b0 kernel/fork.c:384
Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 7f 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5c 24 20 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 52 04 00 00 4d 85 ed 4c 8b 3b 0f 84 c2 03 00 00
RSP: 0018:ffffc90000d3fcb0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0007700000077000 RCX: ffffffff8144a50c
RDX: 0000ee000000ee00 RSI: ffffffff81448268 RDI: ffff88800011fba0
RBP: 00000000ffffffe0 R08: 0000000000000001 R09: ffff888066b7f643
R10: 0000000000000080 R11: 0000000000000000 R12: ffff88800011fb80
R13: ffffffff812a8910 R14: 0000000000000000 R15: ffff888066b7f638
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff6f8a88db8 CR3: 0000000098fde000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 release_task_stack kernel/fork.c:425 [inline]
 put_task_stack+0xdf/0x480 kernel/fork.c:437
 finish_task_switch+0x52a/0x750 kernel/sched/core.c:3649
 context_switch kernel/sched/core.c:3781 [inline]
 __schedule+0xeb1/0x2230 kernel/sched/core.c:4527
 schedule_idle+0x53/0x90 kernel/sched/core.c:4630
 do_idle+0x3a3/0x730 kernel/sched/idle.c:301
 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:369
 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243
Modules linked in:
---[ end trace e075683eefa43914 ]---
RIP: 0010:account_kernel_stack+0xae/0x5b0 kernel/fork.c:384
Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 7f 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5c 24 20 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 52 04 00 00 4d 85 ed 4c 8b 3b 0f 84 c2 03 00 00
RSP: 0018:ffffc90000d3fcb0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0007700000077000 RCX: ffffffff8144a50c
RDX: 0000ee000000ee00 RSI: ffffffff81448268 RDI: ffff88800011fba0
RBP: 00000000ffffffe0 R08: 0000000000000001 R09: ffff888066b7f643
R10: 0000000000000080 R11: 0000000000000000 R12: ffff88800011fb80
R13: ffffffff812a8910 R14: 0000000000000000 R15: ffff888066b7f638
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff6f8a88db8 CR3: 0000000098fde000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (2):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Maintainers
ci-upstream-kasan-gce	2020/09/02 04:32	upstream	b765a32a	abf9ba4f	.config	log	report				akpm@linux-foundation.org, christian@brauner.io, keescook@chromium.org, linux-kernel@vger.kernel.org, luto@amacapital.net, mingo@kernel.org, peterz@infradead.org, shakeelb@google.com, wad@chromium.org
ci-upstream-linux-next-kasan-gce-root	2020/08/30 02:00	linux-next	b36c9697	d5a3ae1f	.config	log	report				akpm@linux-foundation.org, christian@brauner.io, keescook@chromium.org, linux-kernel@vger.kernel.org, luto@amacapital.net, mingo@kernel.org, peterz@infradead.org, wad@chromium.org