general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 1 PID: 3572 Comm: syz-executor.4 Not tainted 6.3.0-rc5-syzkaller-00137-gf2afccfefe7b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
RIP: 0010:mm_update_next_owner+0x4a1/0x7b0 kernel/exit.c:486
Code: 48 8d bd 90 03 00 00 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 ff 02 00 00 48 8b ad 90 03 00 00 4c 8d 7d 10 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 d6 02 00 00 48 8b 45 10 48 8d a8 a0 f9 ff ff 49
RSP: 0018:ffffc90015167b80 EFLAGS: 00010212
RAX: 0000000000000002 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: ffff888026a19d40 RSI: ffffffff814cb8a7 RDI: ffff88803f7fc2e8
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88801246ef00
R13: ffff88803f7fba80 R14: 0000000000000000 R15: 0000000000000010
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc80297fc0 CR3: 00000000731a0000 CR4: 0000000000350ee0
Call Trace:
<TASK>
exit_mm kernel/exit.c:562 [inline]
do_exit+0x9cf/0x2960 kernel/exit.c:856
do_group_exit+0xd4/0x2a0 kernel/exit.c:1019
get_signal+0x2315/0x25b0 kernel/signal.c:2859
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fab1a28c169
Code: Unable to access opcode bytes at 0x7fab1a28c13f.
RSP: 002b:00007fff64ce89b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 00007fab1a3abf8c RCX: 00007fab1a28c169
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fab1a3abf8c
RBP: 00007fab1a3abf80 R08: 00007fff64da4080 R09: 0000000000000000
R10: 00007fff64ce8aa0 R11: 0000000000000246 R12: 00000000000ba6af
R13: 00007fff64ce8aa0 R14: 00007fff64ce8ac0 R15: 0000000000000fd2
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:mm_update_next_owner+0x4a1/0x7b0 kernel/exit.c:486
Code: 48 8d bd 90 03 00 00 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 ff 02 00 00 48 8b ad 90 03 00 00 4c 8d 7d 10 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 d6 02 00 00 48 8b 45 10 48 8d a8 a0 f9 ff ff 49
RSP: 0018:ffffc90015167b80 EFLAGS: 00010212
RAX: 0000000000000002 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: ffff888026a19d40 RSI: ffffffff814cb8a7 RDI: ffff88803f7fc2e8
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88801246ef00
R13: ffff88803f7fba80 R14: 0000000000000000 R15: 0000000000000010
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc80297fc0 CR3: 00000000731a0000 CR4: 0000000000350ee0
----------------
Code disassembly (best guess):
0: 48 8d bd 90 03 00 00 lea 0x390(%rbp),%rdi
7: 48 89 f8 mov %rdi,%rax
a: 48 c1 e8 03 shr $0x3,%rax
e: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1)
12: 0f 85 ff 02 00 00 jne 0x317
18: 48 8b ad 90 03 00 00 mov 0x390(%rbp),%rbp
1f: 4c 8d 7d 10 lea 0x10(%rbp),%r15
23: 4c 89 f8 mov %r15,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) <-- trapping instruction
2e: 0f 85 d6 02 00 00 jne 0x30a
34: 48 8b 45 10 mov 0x10(%rbp),%rax
38: 48 8d a8 a0 f9 ff ff lea -0x660(%rax),%rbp
3f: 49 rex.WB