BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 309e5067 P4D 309e5067 PUD 7dcf4067 PMD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 21 Comm: ksoftirqd/1 Not tainted 6.4.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc900001b7d48 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8880b993d2c0 RCX: a8465ad1c6353a91
RDX: 1ffff11002ecd510 RSI: 0000000000000100 RDI: ffff88803bec1680
RBP: 0000000000000003 R08: ffffffff816f1121 R09: ffffffff9152bd1f
R10: fffffbfff22a57a3 R11: 0000000000094001 R12: dffffc0000000000
R13: ffff88803bec1680 R14: ffffc900001b7dc8 R15: 0000000000000002
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000004cbaa000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 rcu_do_batch kernel/rcu/tree.c:2115 [inline]
 rcu_core+0x806/0x1ad0 kernel/rcu/tree.c:2377
 __do_softirq+0x1d4/0x905 kernel/softirq.c:571
 run_ksoftirqd kernel/softirq.c:939 [inline]
 run_ksoftirqd+0x31/0x60 kernel/softirq.c:931
 smpboot_thread_fn+0x659/0x9e0 kernel/smpboot.c:164
 kthread+0x344/0x440 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
Modules linked in:
CR2: 0000000000000000
---[ end trace 0000000000000000 ]---
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc900001b7d48 EFLAGS: 00010246

RAX: 0000000000000000 RBX: ffff8880b993d2c0 RCX: a8465ad1c6353a91
RDX: 1ffff11002ecd510 RSI: 0000000000000100 RDI: ffff88803bec1680
RBP: 0000000000000003 R08: ffffffff816f1121 R09: ffffffff9152bd1f
R10: fffffbfff22a57a3 R11: 0000000000094001 R12: dffffc0000000000
R13: ffff88803bec1680 R14: ffffc900001b7dc8 R15: 0000000000000002
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000004cbaa000 CR4: 0000000000350ee0