------------[ cut here ]------------
WARNING: CPU: 0 PID: 5044 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 5044 Comm: syz.0.164 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 3d f7 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 c0 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:ffffc90000007d30 EFLAGS: 00010006
RAX: ffffffff819ed760 RBX: 0000000000000008 RCX: ffff888026f29dc0
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed1004de53b9
R10: ffffed1004de53b9 R11: 1ffff11004de53b8 R12: ffff888026f2b548
R13: 00007ffffffff000 R14: ffffc90000007da8 R15: 0000000020000000
FS:  00007f759ab626c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 000000007d70d000 CR4: 00000000003506f0
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_2c2e2930f3e7254b+0x5e/0xe20
 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+0x15b/0x2d0 kernel/trace/bpf_trace.c:1915
 trace_tlb_flush+0xe6/0x110 include/trace/events/tlb.h:38
 flush_tlb_func+0x43f/0x510 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:___might_sleep+0x180/0x600 kernel/sched/core.c:9626
Code: 03 00 00 45 03 7d 00 44 3b 7c 24 2c 75 61 48 c7 84 24 a0 00 00 00 00 00 00 00 9c 8f 84 24 a0 00 00 00 f6 84 24 a1 00 00 00 02 <74> 43 4c 8d 7a 2c 4c 89 f8 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85
RSP: 0018:ffffc9000346fb40 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 1ffff9200068df70 RCX: 8bd2e0d92857d400
RDX: ffff888026f29dc0 RSI: ffffffff8a0b2ac0 RDI: ffffffff8a59a480
RBP: ffffc9000346fc60 R08: dffffc0000000000 R09: fffff5200068dedd
R10: fffff5200068dedd R11: 1ffff9200068dedc R12: dffffc0000000000
R13: ffff888026f2a1fc R14: 1ffff11004de543f R15: 0000000000000000
 __might_fault+0x6b/0x110 mm/memory.c:5354
 do_recvmmsg+0x36d/0x7a0 net/socket.c:2797
 __sys_recvmmsg net/socket.c:2870 [inline]
 __do_sys_recvmmsg net/socket.c:2893 [inline]
 __se_sys_recvmmsg net/socket.c:2886 [inline]
 __x64_sys_recvmmsg+0x18d/0x240 net/socket.c:2886
 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: 0033:0x7f759c91bba9
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:00007f759ab62038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f759cb63090 RCX: 00007f759c91bba9
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000005
RBP: 00007f759c99ee19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f759cb63128 R14: 00007f759cb63090 R15: 00007ffd4418bae8
 </TASK>
----------------
Code disassembly (best guess):
   0:	03 00                	add    (%rax),%eax
   2:	00 45 03             	add    %al,0x3(%rbp)
   5:	7d 00                	jge    0x7
   7:	44 3b 7c 24 2c       	cmp    0x2c(%rsp),%r15d
   c:	75 61                	jne    0x6f
   e:	48 c7 84 24 a0 00 00 	movq   $0x0,0xa0(%rsp)
  15:	00 00 00 00 00
  1a:	9c                   	pushf
  1b:	8f 84 24 a0 00 00 00 	pop    0xa0(%rsp)
  22:	f6 84 24 a1 00 00 00 	testb  $0x2,0xa1(%rsp)
  29:	02
* 2a:	74 43                	je     0x6f <-- trapping instruction
  2c:	4c 8d 7a 2c          	lea    0x2c(%rdx),%r15
  30:	4c 89 f8             	mov    %r15,%rax
  33:	48 c1 e8 03          	shr    $0x3,%rax
  37:	42 0f b6 04 20       	movzbl (%rax,%r12,1),%eax
  3c:	84 c0                	test   %al,%al
  3e:	0f                   	.byte 0xf
  3f:	85                   	.byte 0x85