BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 1cfa50067 P4D 1cfa50067 PUD 1cfa53067 PMD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 6151 Comm: syz-executor.0 Tainted: G        W         5.4.274-syzkaller-00002-g6f97bd951d82 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0000:ffff8881f6f09d18 EFLAGS: 00010206
RAX: ffffffff8154d7aa RBX: 0000000000000100 RCX: ffff8881da191f80
RDX: 0000000080000100 RSI: 0000000000000000 RDI: ffff8881d93b31c0
RBP: ffff8881f6f09ec8 R08: ffffffff8154d3ee R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: 00000000ffffca20
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881d93b31c0
FS:  00005555572f4480(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000001e4a0b000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0x36/0x390 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x879/0xbe0 kernel/time/timer.c:1817
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:538 [inline]
 smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0033:0x7f32f72ccb3e
Code: 89 34 24 48 89 ce 48 89 4f f8 49 8b 14 24 49 8b 4c 24 08 eb 85 0f 1f 80 00 00 00 00 48 89 fe 4c 89 ea 48 89 df e8 f2 fe ff ff <48> 89 d8 4c 29 e0 48 3d 80 00 00 00 7e 7f 4d 85 ed 74 24 48 89 df
RSP: 002b:00007ffdae102fc0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000068 RBX: 00007f32f6e55ef8 RCX: ffffffff82316f39
RDX: 0000000000000012 RSI: 00007f32f6e55f60 RDI: 00007f32f6e55ef8
RBP: 00007f32f6e55e98 R08: 00007f32f6e55ef8 R09: 0000000082316014
R10: 0000000000000000 R11: 0000000082316014 R12: 00007f32f6e55e90
R13: 0000000000000012 R14: 00000000001ffff8 R15: 00007f32f7448018
Modules linked in:
CR2: 0000000000000000
---[ end trace 11f0f30838b65389 ]---
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0000:ffff8881f6f09d18 EFLAGS: 00010206
RAX: ffffffff8154d7aa RBX: 0000000000000100 RCX: ffff8881da191f80
RDX: 0000000080000100 RSI: 0000000000000000 RDI: ffff8881d93b31c0
RBP: ffff8881f6f09ec8 R08: ffffffff8154d3ee R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: 00000000ffffca20
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881d93b31c0
FS:  00005555572f4480(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000001e4a0b000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400