BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 1ec649067 P4D 1ec649067 PUD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events bpf_prog_free_deferred
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff8881f6e09cf0 EFLAGS: 00010206
RAX: ffffffff8150a590 RBX: 0000000000000103 RCX: ffff8881f5d6de80
RDX: 0000000000000103 RSI: 0000000000000000 RDI: ffff8881d6f831c0
RBP: ffff8881f6e09d30 R08: 0000000000000004 R09: 0000000000000003
R10: ffffed103edc1398 R11: 1ffff1103edc1398 R12: 00000000ffffb0c0
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881d6f831c0
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000001d7468000 CR4: 00000000003406b0
DR0: ffffffffffffffff DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 call_timer_fn+0x3c/0x380 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x81d/0xb60 kernel/time/timer.c:1817
 run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x236/0x660 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x197/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:539 [inline]
 smp_apic_timer_interrupt+0x11d/0x490 arch/x86/kernel/apic/apic.c:1161
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:csd_lock_wait kernel/smp.c:109 [inline]
RIP: 0010:smp_call_function_single+0x1da/0x410 kernel/smp.c:311
Code: 5c 02 00 00 89 c3 44 8b 74 24 58 44 89 f6 83 e6 01 31 ff e8 b8 51 0a 00 41 83 e6 01 75 0a e8 5d 4e 0a 00 e9 a6 00 00 00 f3 90 <f7> 44 24 58 01 00 00 00 0f 84 91 00 00 00 e8 43 4e 0a 00 eb e9 e8
RSP: 0018:ffff8881f5da77c0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffffffff8155309d RBX: 0000000000000000 RCX: ffff8881f5d6de80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff8881f5da78b0 R08: dffffc0000000000 R09: ffffed103edeb189
R10: ffffed103edeb189 R11: 1ffff1103edeb188 R12: ffff8881f5da7800
R13: 0000000000000001 R14: 0000000000000001 R15: 1ffff1103ebb4efc
 smp_call_function_many+0x6d6/0x990 kernel/smp.c:451
 smp_call_function kernel/smp.c:509 [inline]
 on_each_cpu+0xa8/0x170 kernel/smp.c:616
 flush_tlb_kernel_range+0x3a/0x1c0 arch/x86/mm/tlb.c:838
 __purge_vmap_area_lazy+0xe7/0x1780 mm/vmalloc.c:1278
 _vm_unmap_aliases+0x2d7/0x360 mm/vmalloc.c:1707
 vm_remove_mappings mm/vmalloc.c:2226 [inline]
 __vunmap+0x5bd/0x8a0 mm/vmalloc.c:2251
 __vfree mm/vmalloc.c:2308 [inline]
 vfree+0x61/0x90 mm/vmalloc.c:2338
 module_memfree+0x17/0x30 kernel/module.c:2228
 bpf_jit_free_exec+0x15/0x20 kernel/bpf/core.c:802
 bpf_jit_binary_free kernel/bpf/core.c:855 [inline]
 bpf_jit_free+0x98/0x1f0 kernel/bpf/core.c:868
 bpf_prog_free_deferred+0x19d/0x370 kernel/bpf/core.c:2037
 process_one_work+0x73b/0xcc0 kernel/workqueue.c:2290
 worker_thread+0xa5c/0x13b0 kernel/workqueue.c:2436
 kthread+0x31e/0x3a0 kernel/kthread.c:288
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:354
Modules linked in:
CR2: 0000000000000000
---[ end trace c5dee25a6c15822d ]---
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff8881f6e09cf0 EFLAGS: 00010206
RAX: ffffffff8150a590 RBX: 0000000000000103 RCX: ffff8881f5d6de80
RDX: 0000000000000103 RSI: 0000000000000000 RDI: ffff8881d6f831c0
RBP: ffff8881f6e09d30 R08: 0000000000000004 R09: 0000000000000003
R10: ffffed103edc1398 R11: 1ffff1103edc1398 R12: 00000000ffffb0c0
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881d6f831c0
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000001d7468000 CR4: 00000000003406b0
DR0: ffffffffffffffff DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	5c                   	pop    %rsp
   1:	02 00                	add    (%rax),%al
   3:	00 89 c3 44 8b 74    	add    %cl,0x748b44c3(%rcx)
   9:	24 58                	and    $0x58,%al
   b:	44 89 f6             	mov    %r14d,%esi
   e:	83 e6 01             	and    $0x1,%esi
  11:	31 ff                	xor    %edi,%edi
  13:	e8 b8 51 0a 00       	call   0xa51d0
  18:	41 83 e6 01          	and    $0x1,%r14d
  1c:	75 0a                	jne    0x28
  1e:	e8 5d 4e 0a 00       	call   0xa4e80
  23:	e9 a6 00 00 00       	jmp    0xce
  28:	f3 90                	pause
* 2a:	f7 44 24 58 01 00 00 	testl  $0x1,0x58(%rsp) <-- trapping instruction
  31:	00
  32:	0f 84 91 00 00 00    	je     0xc9
  38:	e8 43 4e 0a 00       	call   0xa4e80
  3d:	eb e9                	jmp    0x28
  3f:	e8                   	.byte 0xe8