------------[ cut here ]------------
WARNING: CPU: 0 PID: 17208 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 17208 Comm: syz.2.3296 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 6d 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 f0 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:ffffc90000007d40 EFLAGS: 00010006
RAX: ffffffff819ed660 RBX: 0000000000000000 RCX: ffff888022779dc0
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff1ff7a19
R10: fffffbfff1ff7a19 R11: 1ffffffff1ff7a18 R12: ffff88802277b548
R13: dffffc0000000000 R14: ffffc90000007da8 R15: 0000000000000000
FS:  00007f9d5c1376c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9d5dd9fe80 CR3: 000000001a9f6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000200000000300
DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600
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_8848bede53a6b60e+0x34/0xfc0
 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:kasan_check_range+0x1ab/0x290 mm/kasan/generic.c:-1
Code: 4d 89 d6 4d 8d 56 07 4d 85 f6 4d 0f 49 d6 49 83 e2 f8 4d 29 d6 74 12 41 80 39 00 0f 85 a0 00 00 00 49 ff c1 49 ff ce 75 ee 5b <41> 5e 41 5f c3 84 db 75 61 f7 c3 00 ff 00 00 75 5e f7 c3 00 00 ff
RSP: 0000:ffffc90002e4faf0 EFLAGS: 00000256
RAX: ffffffff819cc901 RBX: ffffea0001ffa300 RCX: ffffffff819cc9b4
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffea0001ffa300
RBP: ffffc90002e4fcb0 R08: dffffc0000000000 R09: fffff940003ff461
R10: fffff940003ff461 R11: 1ffffd40003ff460 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000001 R15: dffffc0000000001
 instrument_atomic_read include/linux/instrumented.h:71 [inline]
 test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
 PageLocked include/linux/page-flags.h:342 [inline]
 unlock_page+0x104/0x1f0 mm/filemap.c:1511
 filemap_map_pages+0xd47/0x1390 mm/filemap.c:3350
 do_fault_around mm/memory.c:4243 [inline]
 do_read_fault mm/memory.c:4258 [inline]
 do_fault mm/memory.c:4392 [inline]
 handle_pte_fault mm/memory.c:4650 [inline]
 __handle_mm_fault mm/memory.c:4785 [inline]
 handle_mm_fault+0x2580/0x43c0 mm/memory.c:4883
 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: 0033:0x7f9d5dd9fe80
Code: Unable to access opcode bytes at RIP 0x7f9d5dd9fe56.
RSP: 002b:00007f9d5c137118 EFLAGS: 00010246
RAX: 00007f9d5c1376c0 RBX: 00007f9d5c1376c0 RCX: 00007f9d5de86b06
RDX: 0000000000000000 RSI: 00007f9d5c137fb0 RDI: 00007f9d5e126fa0
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd768b80d7
R10: 0000000000000008 R11: 0000000000000246 R12: ffffffffffffffa8
R13: 000000000000000b R14: 00007ffd768b7ff0 R15: 00007ffd768b80d8
 </TASK>
----------------
Code disassembly (best guess):
   0:	4d 89 d6             	mov    %r10,%r14
   3:	4d 8d 56 07          	lea    0x7(%r14),%r10
   7:	4d 85 f6             	test   %r14,%r14
   a:	4d 0f 49 d6          	cmovns %r14,%r10
   e:	49 83 e2 f8          	and    $0xfffffffffffffff8,%r10
  12:	4d 29 d6             	sub    %r10,%r14
  15:	74 12                	je     0x29
  17:	41 80 39 00          	cmpb   $0x0,(%r9)
  1b:	0f 85 a0 00 00 00    	jne    0xc1
  21:	49 ff c1             	inc    %r9
  24:	49 ff ce             	dec    %r14
  27:	75 ee                	jne    0x17
  29:	5b                   	pop    %rbx
* 2a:	41 5e                	pop    %r14 <-- trapping instruction
  2c:	41 5f                	pop    %r15
  2e:	c3                   	ret
  2f:	84 db                	test   %bl,%bl
  31:	75 61                	jne    0x94
  33:	f7 c3 00 ff 00 00    	test   $0xff00,%ebx
  39:	75 5e                	jne    0x99
  3b:	f7                   	.byte 0xf7
  3c:	c3                   	ret
  3d:	00 00                	add    %al,(%rax)
  3f:	ff                   	.byte 0xff