------------[ cut here ]------------
WARNING: CPU: 1 PID: 4568 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 4568 Comm: syz.0.71 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 7d 94 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 00 91 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:ffffc90000dd0d38 EFLAGS: 00010006
RAX: ffffffff81a07ea0 RBX: 0000000000000008 RCX: ffff8880763dd940
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff8880763dd947 R09: 1ffff1100ec7bb28
R10: dffffc0000000000 R11: ffffed100ec7bb29 R12: ffff8880763df0c8
R13: 00007ffffffff000 R14: ffffc90000dd0da8 R15: 0000000000000000
FS:  00007f53aa92a6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffc44a0000 CR3: 0000000024e33000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
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_4d571c0aa826a670+0x5b/0x530
 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_run2+0x163/0x2e0 kernel/trace/bpf_trace.c:1915
 trace_tlb_flush+0xe6/0x110 include/trace/events/tlb.h:38
 flush_tlb_func+0x4c7/0x5b0 arch/x86/mm/tlb.c:855
 flush_smp_call_function_queue+0x2a9/0x760 kernel/smp.c:628
 __sysvec_call_function_single+0x98/0x240 arch/x86/kernel/smp.c:248
 instr_sysvec_call_function_single arch/x86/kernel/smp.c:243 [inline]
 sysvec_call_function_single+0x98/0xc0 arch/x86/kernel/smp.c:243
 </IRQ>
 <TASK>
 asm_sysvec_call_function_single+0x16/0x20 arch/x86/include/asm/idtentry.h:684
RIP: 0010:check_preemption_disabled+0x42/0x110 lib/smp_processor_id.c:55
Code: 65 8b 05 09 8f 47 76 65 8b 0d 72 e9 47 76 f7 c1 ff ff ff 7f 74 1f 65 48 8b 0c 25 28 00 00 00 48 3b 4c 24 08 0f 85 c4 00 00 00 <48> 83 c4 10 5b 41 5e 41 5f 5d c3 48 c7 04 24 00 00 00 00 9c 8f 04
RSP: 0018:ffffc9000300f7c8 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 0000000000000013 RCX: 2b843b6dd84d5f00
RDX: 0000000000000006 RSI: ffffffff8a79ebe0 RDI: ffffffff8a79eba0
RBP: ffffc9000300f8f0 R08: ffffffff8d8967af R09: 1ffffffff1b12cf5
R10: dffffc0000000000 R11: fffffbfff1b12cf6 R12: 0000000000000001
R13: ffff888140007b40 R14: 1ffff92000601f08 R15: dffffc0000000000
 get_obj_stock mm/memcontrol.c:2167 [inline]
 mod_objcg_state+0xa1/0x600 mm/memcontrol.c:3092
 memcg_slab_post_alloc_hook mm/slab.h:322 [inline]
 slab_post_alloc_hook+0x2aa/0x380 mm/slab.h:526
 slab_alloc_node mm/slub.c:3225 [inline]
 slab_alloc mm/slub.c:3233 [inline]
 kmem_cache_alloc+0x100/0x290 mm/slub.c:3238
 create_nsproxy kernel/nsproxy.c:56 [inline]
 create_new_namespaces+0x34/0x6f0 kernel/nsproxy.c:74
 copy_namespaces+0x37d/0x3e0 kernel/nsproxy.c:178
 copy_process+0x1834/0x3e20 kernel/fork.c:2293
 kernel_clone+0x23f/0x990 kernel/fork.c:2679
 __do_sys_clone kernel/fork.c:2796 [inline]
 __se_sys_clone kernel/fork.c:2780 [inline]
 __x64_sys_clone+0x19a/0x210 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: 0033:0x7f53ac6cecb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f53aa929fd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f53ac949fa0 RCX: 00007f53ac6cecb9
RDX: 0000000000000000 RSI: 0000000000000050 RDI: 0000000043b00000
RBP: 00007f53ac73cbf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007f53ac94a038 R14: 00007f53ac949fa0 R15: 00007ffd80732538
 </TASK>
----------------
Code disassembly (best guess):
   0:	65 8b 05 09 8f 47 76 	mov    %gs:0x76478f09(%rip),%eax        # 0x76478f10
   7:	65 8b 0d 72 e9 47 76 	mov    %gs:0x7647e972(%rip),%ecx        # 0x7647e980
   e:	f7 c1 ff ff ff 7f    	test   $0x7fffffff,%ecx
  14:	74 1f                	je     0x35
  16:	65 48 8b 0c 25 28 00 	mov    %gs:0x28,%rcx
  1d:	00 00
  1f:	48 3b 4c 24 08       	cmp    0x8(%rsp),%rcx
  24:	0f 85 c4 00 00 00    	jne    0xee
* 2a:	48 83 c4 10          	add    $0x10,%rsp <-- trapping instruction
  2e:	5b                   	pop    %rbx
  2f:	41 5e                	pop    %r14
  31:	41 5f                	pop    %r15
  33:	5d                   	pop    %rbp
  34:	c3                   	ret
  35:	48 c7 04 24 00 00 00 	movq   $0x0,(%rsp)
  3c:	00
  3d:	9c                   	pushf
  3e:	8f                   	.byte 0x8f
  3f:	04                   	.byte 0x4