------------[ cut here ]------------
WARNING: CPU: 1 PID: 4167 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 4167 Comm: syz-executor Not tainted 5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 ad e2 d7 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 30 df d7 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:ffffc90000dd09c8 EFLAGS: 00010246
RAX: ffffffff819fe2f0 RBX: 0000000000000000 RCX: ffff88801ada3b80
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff1ff3619
R10: fffffbfff1ff3619 R11: 1ffffffff1ff3618 R12: ffff88801ada5308
R13: 1ffff920001ba148 R14: ffffc90000dd0a28 R15: 0000000000000000
FS:  0000555571e8d500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9e1eaf66c0 CR3: 00000000658f1000 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_user kernel/trace/bpf_trace.c:166 [inline]
 bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
 bpf_prog_7e47b8e39696360c+0x32/0x134
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [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:3516
 put_pid kernel/pid.c:114 [inline]
 delayed_put_pid+0xbb/0x120 kernel/pid.c:123
 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:flush_tlb_mm_range+0x3df/0x560 arch/x86/mm/tlb.c:1043
Code: 8f 44 24 60 8b 44 24 60 fa a9 00 02 00 00 74 05 e8 26 6c 48 00 4c 89 f7 e8 7e f5 ff ff e8 29 68 48 00 fb 65 ff 0d f9 fc cc 7e <bf> 01 00 00 00 e8 07 e8 1b 00 65 8b 05 a8 f7 cc 7e 85 c0 74 3c 48
RSP: 0018:ffffc90002e0f880 EFLAGS: 00000246
RAX: 467d892c60142400 RBX: dffffc0000000000 RCX: 467d892c60142400
RDX: dffffc0000000000 RSI: ffffffff8a0b11c0 RDI: ffffffff8a59a740
RBP: ffffc90002e0f950 R08: dffffc0000000000 R09: fffffbfff1ff361f
R10: fffffbfff1ff361f R11: 1ffffffff1ff361e R12: ffff8880b9139ae6
R13: 1ffff1101722735c R14: ffff8880b9139ac0 R15: ffff88807a3a9500
 dup_mmap kernel/fork.c:627 [inline]
 dup_mm kernel/fork.c:1466 [inline]
 copy_mm+0xf3a/0x1370 kernel/fork.c:1518
 copy_process+0x17c6/0x3e00 kernel/fork.c:2290
 kernel_clone+0x219/0x930 kernel/fork.c:2679
 __do_sys_clone kernel/fork.c:2796 [inline]
 __se_sys_clone kernel/fork.c:2780 [inline]
 __x64_sys_clone+0x170/0x1c0 kernel/fork.c:2780
 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: 0033:0x7f9e1dd96193
Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffd12b54d38 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9e1dd96193
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
R10: 0000555571e8d7d0 R11: 0000000000000246 R12: 0000000000000000
R13: 00000000000927c0 R14: 00000000000154bb R15: 00007ffd12b54ed0
 </TASK>
----------------
Code disassembly (best guess):
   0:	8f 44 24 60          	pop    0x60(%rsp)
   4:	8b 44 24 60          	mov    0x60(%rsp),%eax
   8:	fa                   	cli
   9:	a9 00 02 00 00       	test   $0x200,%eax
   e:	74 05                	je     0x15
  10:	e8 26 6c 48 00       	call   0x486c3b
  15:	4c 89 f7             	mov    %r14,%rdi
  18:	e8 7e f5 ff ff       	call   0xfffff59b
  1d:	e8 29 68 48 00       	call   0x48684b
  22:	fb                   	sti
  23:	65 ff 0d f9 fc cc 7e 	decl   %gs:0x7eccfcf9(%rip)        # 0x7eccfd23
* 2a:	bf 01 00 00 00       	mov    $0x1,%edi <-- trapping instruction
  2f:	e8 07 e8 1b 00       	call   0x1be83b
  34:	65 8b 05 a8 f7 cc 7e 	mov    %gs:0x7eccf7a8(%rip),%eax        # 0x7eccf7e3
  3b:	85 c0                	test   %eax,%eax
  3d:	74 3c                	je     0x7b
  3f:	48                   	rex.W