------------[ cut here ]------------
WARNING: CPU: 1 PID: 4602 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 4602 Comm: syz.1.121 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 8d f6 d8 ff 85 db 48 c7 c0 f2 ff ff ff 49 0f 44 c6 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 10 f3 d8 ff <0f> 0b e9 1c ff ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c ea fe
RSP: 0018:ffffc90000dd09f8 EFLAGS: 00010246
RAX: ffffffff819ed900 RBX: 0000000000000000 RCX: ffff88801799d940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed1002f33b29
R10: ffffed1002f33b29 R11: 1ffff11002f33b28 R12: ffff88801799f0c8
R13: 00007ffffffff000 R14: ffffc90000dd0a68 R15: 0000000000000000
FS:  00007fe0950176c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000022ec6000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
 ____bpf_probe_read_compat kernel/trace/bpf_trace.c:281 [inline]
 bpf_probe_read_compat+0xdd/0x170 kernel/trace/bpf_trace.c:277
 bpf_prog_3d2613b5dfc7747f+0x32/0xa34
 bpf_dispatcher_nop_func include/linux/bpf.h:888 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run3+0x17e/0x320 kernel/trace/bpf_trace.c:1916
 __bpf_trace_kmem_cache_free+0x99/0xc0 include/trace/events/kmem.h:138
 trace_kmem_cache_free include/trace/events/kmem.h:138 [inline]
 kmem_cache_free+0x1e7/0x210 mm/slub.c:3521
 rcu_do_batch kernel/rcu/tree.c:2523 [inline]
 rcu_core+0x962/0x15d0 kernel/rcu/tree.c:2763
 handle_softirqs+0x328/0x820 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:cpumask_next+0x1c/0xd0 lib/cpumask.c:20
Code: e9 be fd ff ff 00 00 cc cc 00 00 cc cc 00 41 56 53 50 48 89 f3 41 89 fe e8 01 4c 7c fd bf ff ff ff ff 44 89 f6 e8 54 4f 7c fd <41> 83 fe ff 74 34 bf 07 00 00 00 44 89 f6 e8 41 4f 7c fd 41 83 fe
RSP: 0018:ffffc900032e7af8 EFLAGS: 00000297
RAX: ffffffff83fb801c RBX: ffffffff8d699d38 RCX: ffff88801799d940
RDX: 0000000000000002 RSI: 0000000000000001 RDI: 00000000ffffffff
RBP: 0000000000000002 R08: dffffc0000000000 R09: ffffc900040a82a8
R10: fffff52000815057 R11: 1ffff92000815055 R12: dffffc0000000000
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8880b9100000
 __is_kernel_percpu_address mm/percpu.c:2322 [inline]
 is_kernel_percpu_address+0x58/0x160 mm/percpu.c:2353
 static_obj kernel/locking/lockdep.c:810 [inline]
 lockdep_init_map_type+0x1b8/0x850 kernel/locking/lockdep.c:4796
 htab_init_buckets kernel/bpf/hashtab.c:148 [inline]
 htab_map_alloc+0x9ed/0x15a0 kernel/bpf/hashtab.c:551
 find_and_alloc_map kernel/bpf/syscall.c:129 [inline]
 map_create+0x485/0x2350 kernel/bpf/syscall.c:881
 __sys_bpf+0x2a4/0x670 kernel/bpf/syscall.c:4639
 __do_sys_bpf kernel/bpf/syscall.c:4761 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4759 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4759
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fe096db06c9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe095017038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fe097006fa0 RCX: 00007fe096db06c9
RDX: 0000000000000048 RSI: 00002000000000c0 RDI: 0000000000000000
RBP: 00007fe096e32f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe097007038 R14: 00007fe097006fa0 R15: 00007ffdf980e958
 </TASK>
----------------
Code disassembly (best guess):
   0:	e9 be fd ff ff       	jmp    0xfffffdc3
   5:	00 00                	add    %al,(%rax)
   7:	cc                   	int3
   8:	cc                   	int3
   9:	00 00                	add    %al,(%rax)
   b:	cc                   	int3
   c:	cc                   	int3
   d:	00 41 56             	add    %al,0x56(%rcx)
  10:	53                   	push   %rbx
  11:	50                   	push   %rax
  12:	48 89 f3             	mov    %rsi,%rbx
  15:	41 89 fe             	mov    %edi,%r14d
  18:	e8 01 4c 7c fd       	call   0xfd7c4c1e
  1d:	bf ff ff ff ff       	mov    $0xffffffff,%edi
  22:	44 89 f6             	mov    %r14d,%esi
  25:	e8 54 4f 7c fd       	call   0xfd7c4f7e
* 2a:	41 83 fe ff          	cmp    $0xffffffff,%r14d <-- trapping instruction
  2e:	74 34                	je     0x64
  30:	bf 07 00 00 00       	mov    $0x7,%edi
  35:	44 89 f6             	mov    %r14d,%esi
  38:	e8 41 4f 7c fd       	call   0xfd7c4f7e
  3d:	41                   	rex.B
  3e:	83                   	.byte 0x83
  3f:	fe                   	.byte 0xfe