BUG: unable to handle page fault for address: ffffffffffffff6c
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD b08f067 P4D b08f067 PUD b091067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8842 Comm: syz-executor.4 Not tainted 5.10.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:wait_consider_task+0xae/0x3b70 kernel/exit.c:1272
Code: 8f 94 04 00 00 48 89 c8 48 89 4c 24 10 48 c1 e8 03 0f b6 14 28 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 4b 1d 00 00 <45> 8b a7 94 04 00 00 bf 10 00 00 00 44 89 e6 e8 3e 67 2e 00 41 83
RSP: 0018:ffffc9000185fc50 EFLAGS: 00010246
RAX: 0000000000000007 RBX: 0000000000000000 RCX: ffffffffffffff6c
RDX: 0000000000000000 RSI: ffffffff8141c0b2 RDI: ffffc9000185fe50
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffffff8b00a083
R10: 0000000000000000 R11: 0000000000000000 R12: ffffc9000185fe50
R13: ffff888058b18000 R14: 0000000000000000 R15: fffffffffffffad8
FS:  0000000000000000(0000) GS:ffff8880b9e00000(0063) knlGS:0000000009bd0900
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: ffffffffffffff6c CR3: 0000000014086000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_wait_thread kernel/exit.c:1381 [inline]
 do_wait+0x376/0x9b0 kernel/exit.c:1452
 kernel_wait4+0x14c/0x260 kernel/exit.c:1614
 do_syscall_32_irqs_on arch/x86/entry/common.c:78 [inline]
 __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:137
 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:160
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7f23549
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000090bfda4 EFLAGS: 00000216 ORIG_RAX: 0000000000000007
RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00000000090bfe0c
RDX: 0000000040000001 RSI: 00000000000e6e07 RDI: 0000000000000000
RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
CR2: ffffffffffffff6c
---[ end trace 0e979ac71517f2a2 ]---
RIP: 0010:wait_consider_task+0xae/0x3b70 kernel/exit.c:1272
Code: 8f 94 04 00 00 48 89 c8 48 89 4c 24 10 48 c1 e8 03 0f b6 14 28 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 4b 1d 00 00 <45> 8b a7 94 04 00 00 bf 10 00 00 00 44 89 e6 e8 3e 67 2e 00 41 83
RSP: 0018:ffffc9000185fc50 EFLAGS: 00010246
RAX: 0000000000000007 RBX: 0000000000000000 RCX: ffffffffffffff6c
RDX: 0000000000000000 RSI: ffffffff8141c0b2 RDI: ffffc9000185fe50
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffffff8b00a083
R10: 0000000000000000 R11: 0000000000000000 R12: ffffc9000185fe50
R13: ffff888058b18000 R14: 0000000000000000 R15: fffffffffffffad8
FS:  0000000000000000(0000) GS:ffff8880b9e00000(0063) knlGS:0000000009bd0900
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: ffffffffffffff6c CR3: 0000000014086000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400