------------[ cut here ]------------
WARNING: CPU: 1 PID: 12521 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 12521 Comm: syz.9.2156 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: 0000:ffffc90000dd0d30 EFLAGS: 00010006
RAX: ffffffff819ed760 RBX: 0000000000000000 RCX: ffff8880217c0000
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed10042f8001
R10: ffffed10042f8001 R11: 1ffff110042f8000 R12: ffff8880217c1788
R13: 00007ffffffff000 R14: ffffc90000dd0da8 R15: 0000000000000000
FS:  00007fbcccab86c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbcccab8654 CR3: 00000000689a3000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 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_f3c4d654356a1293+0x34/0xc90
 bpf_dispatcher_nop_func include/linux/bpf.h:888 [inline]
 __bpf_prog_run include/linux/filter.h:621 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run2+0x242/0x2d0 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:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:226 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x4/0x80 kernel/kcov.c:293
Code: 77 22 89 ff 89 f6 4a c7 44 02 08 03 00 00 00 4a 89 7c 02 10 4a 89 74 02 18 4a 89 44 02 20 48 ff c1 48 89 0a c3 90 48 8b 04 24 <65> 48 8b 0d 34 a1 8a 7e 65 8b 15 35 a1 8a 7e 81 e2 00 01 ff 00 74
RSP: 0000:ffffc9000323fcb8 EFLAGS: 00000246
RAX: ffffffff81ac7244 RBX: ffff88805e172108 RCX: 0000000000080000
RDX: ffffc900034e1000 RSI: 0000000000000040 RDI: 0000000000000000
RBP: ffffc9000323fe70 R08: dffffc0000000000 R09: fffffbfff1ad323e
R10: fffffbfff1ad323e R11: 1ffffffff1ad323d R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000255 R15: 0000000000000000
 handle_mm_fault+0x1c4/0x43c0 mm/memory.c:4877
 do_user_addr_fault+0x489/0xc80 arch/x86/mm/fault.c:1357
 handle_page_fault arch/x86/mm/fault.c:1445 [inline]
 exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1501
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0033:0x7fbcce716900
Code: c0 75 27 69 3d c5 0d eb 00 b8 0b 00 00 e8 18 a2 13 00 31 f6 bf 3c 00 00 00 31 c0 e8 9a a2 13 00 eb fe 0f 1f 84 00 00 00 00 00 <64> c7 04 25 94 ff ff ff 00 00 00 00 48 83 c4 38 c3 66 66 2e 0f 1f
RSP: 002b:00007fbcccab7ff0 EFLAGS: 00010206
RAX: 00000000000003e8 RBX: 00007fbccea97fa0 RCX: 00007fbcce850ba9
RDX: 0000200000002e40 RSI: 0000200000002e30 RDI: 0000000029924000
RBP: 00007fbcce8d3e19 R08: 0000200000002ec0 R09: 0000200000002ec0
R10: 0000200000002e80 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fbccea98038 R14: 00007fbccea97fa0 R15: 00007fff4c53beb8
 </TASK>
----------------
Code disassembly (best guess):
   0:	77 22                	ja     0x24
   2:	89 ff                	mov    %edi,%edi
   4:	89 f6                	mov    %esi,%esi
   6:	4a c7 44 02 08 03 00 	movq   $0x3,0x8(%rdx,%r8,1)
   d:	00 00
   f:	4a 89 7c 02 10       	mov    %rdi,0x10(%rdx,%r8,1)
  14:	4a 89 74 02 18       	mov    %rsi,0x18(%rdx,%r8,1)
  19:	4a 89 44 02 20       	mov    %rax,0x20(%rdx,%r8,1)
  1e:	48 ff c1             	inc    %rcx
  21:	48 89 0a             	mov    %rcx,(%rdx)
  24:	c3                   	ret
  25:	90                   	nop
  26:	48 8b 04 24          	mov    (%rsp),%rax
* 2a:	65 48 8b 0d 34 a1 8a 	mov    %gs:0x7e8aa134(%rip),%rcx        # 0x7e8aa166 <-- trapping instruction
  31:	7e
  32:	65 8b 15 35 a1 8a 7e 	mov    %gs:0x7e8aa135(%rip),%edx        # 0x7e8aa16e
  39:	81 e2 00 01 ff 00    	and    $0xff0100,%edx
  3f:	74                   	.byte 0x74