BUG: unable to handle page fault for address: fffffffffffffe90
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 987c067 P4D 987c067 PUD 987e067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4474 Comm: syz-executor.2 Not tainted 5.7.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:mm_update_next_owner+0x519/0x7a0 kernel/exit.c:387
Code: 68 fa ff ff 49 39 c7 0f 84 eb fe ff ff e8 df 8f 2d 00 48 8d bd 28 04 00 00 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 96 01 00 00 <4c> 8b b5 28 04 00 00 4d 39 e6 75 95 49 89 fd e9 61 fc ff ff e8 ae
RSP: 0018:ffffc9001a297d20 EFLAGS: 00010246
RAX: 1fffffffffffffd2 RBX: dffffc0000000000 RCX: ffffffff8145a4a3
RDX: 0000000000000000 RSI: ffffffff8145a541 RDI: fffffffffffffe90
RBP: fffffffffffffa68 R08: ffff88804f314180 R09: fffffbfff1301219
R10: ffffffff898090c3 R11: fffffbfff1301218 R12: ffff888014f5efc0
R13: ffff888011852600 R14: 0000000000000000 R15: ffff8880001d61d0
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffe90 CR3: 000000020a5f0000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 exit_mm kernel/exit.c:479 [inline]
 do_exit+0xa49/0x2dd0 kernel/exit.c:783
 do_group_exit+0x125/0x340 kernel/exit.c:894
 __do_sys_exit_group kernel/exit.c:905 [inline]
 __se_sys_exit_group kernel/exit.c:903 [inline]
 __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:903
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45ca29
Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffc7ef5c278 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 000000000045ca29
RDX: 0000000000416621 RSI: fffffffffffffff7 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffc7ef5c2d0
R10: 00000000007902b0 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc7ef5c2d0 R14: 0000000000000000 R15: 00007ffc7ef5c2e0
Modules linked in:
CR2: fffffffffffffe90
---[ end trace 2dce2378761423d6 ]---
RIP: 0010:mm_update_next_owner+0x519/0x7a0 kernel/exit.c:387
Code: 68 fa ff ff 49 39 c7 0f 84 eb fe ff ff e8 df 8f 2d 00 48 8d bd 28 04 00 00 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 96 01 00 00 <4c> 8b b5 28 04 00 00 4d 39 e6 75 95 49 89 fd e9 61 fc ff ff e8 ae
RSP: 0018:ffffc9001a297d20 EFLAGS: 00010246
RAX: 1fffffffffffffd2 RBX: dffffc0000000000 RCX: ffffffff8145a4a3
RDX: 0000000000000000 RSI: ffffffff8145a541 RDI: fffffffffffffe90
RBP: fffffffffffffa68 R08: ffff88804f314180 R09: fffffbfff1301219
R10: ffffffff898090c3 R11: fffffbfff1301218 R12: ffff888014f5efc0
R13: ffff888011852600 R14: 0000000000000000 R15: ffff8880001d61d0
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffe90 CR3: 000000020a5f0000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400