------------[ cut here ]------------
WARNING: CPU: 0 PID: 6165 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 6165 Comm: syz.2.353 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: 0000:ffffc90000007d30 EFLAGS: 00010006
RAX: ffffffff819fe2f0 RBX: 0000000000000008 RCX: ffff888020fe3b80
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed10041fc771
R10: ffffed10041fc771 R11: 1ffff110041fc770 R12: ffff888020fe5308
R13: 00007ffffffff000 R14: ffffc90000007da8 R15: 0000000020000000
FS:  00007f1a775d96c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1a79708b20 CR3: 00000000638e4000 CR4: 00000000003526f0
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_bcff4640d6a7c5a9+0x5e/0x9e8
 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_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:check_kcov_mode kernel/kcov.c:183 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:227 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x32/0x80 kernel/kcov.c:279
Code: 34 ab 8a 7e 65 8b 15 35 ab 8a 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 5b 83 b9 34 16 00 00 00 74 52 8b 91 10 16 00 00 <83> fa 03 75 47 48 8b 91 18 16 00 00 44 8b 89 14 16 00 00 49 c1 e1
RSP: 0000:ffffc9000339fa98 EFLAGS: 00000246
RAX: ffffffff819e32d1 RBX: 000000000000011f RCX: ffff888020fe3b80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000040
RBP: dffffc0000000000 R08: dffffc0000000000 R09: fffff9400039e377
R10: fffff9400039e377 R11: 1ffffd400039e376 R12: 0000000000000000
R13: ffffea0001cf1b88 R14: ffff888020676100 R15: ffffc9000339fc00
 xas_reload+0x81/0x470 include/linux/xarray.h:1557
 next_uptodate_page+0x2a5/0x8b0 mm/filemap.c:3259
 next_map_page mm/filemap.c:3296 [inline]
 filemap_map_pages+0xebd/0x1390 mm/filemap.c:3352
 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: 0033:0x7f1a79708b20
Code: Unable to access opcode bytes at RIP 0x7f1a79708af6.
RSP: 002b:00007f1a775d9118 EFLAGS: 00010246
RAX: fffffffffffffeb8 RBX: 00007f1a775d96c0 RCX: 00007f1a797a6189
RDX: 00007f1a775d9d78 RSI: 0000000000000058 RDI: 00007f1a775d96c0
RBP: 0000000000000000 R08: 00007f1a775d96c0 R09: 00007ffd865de467
R10: 0000000000000008 R11: 0000000000000206 R12: ffffffffffffffa8
R13: 000000000000000b R14: 00007ffd865de380 R15: 00007ffd865de468
 </TASK>
----------------
Code disassembly (best guess):
   0:	34 ab                	xor    $0xab,%al
   2:	8a 7e 65             	mov    0x65(%rsi),%bh
   5:	8b 15 35 ab 8a 7e    	mov    0x7e8aab35(%rip),%edx        # 0x7e8aab40
   b:	81 e2 00 01 ff 00    	and    $0xff0100,%edx
  11:	74 11                	je     0x24
  13:	81 fa 00 01 00 00    	cmp    $0x100,%edx
  19:	75 5b                	jne    0x76
  1b:	83 b9 34 16 00 00 00 	cmpl   $0x0,0x1634(%rcx)
  22:	74 52                	je     0x76
  24:	8b 91 10 16 00 00    	mov    0x1610(%rcx),%edx
* 2a:	83 fa 03             	cmp    $0x3,%edx <-- trapping instruction
  2d:	75 47                	jne    0x76
  2f:	48 8b 91 18 16 00 00 	mov    0x1618(%rcx),%rdx
  36:	44 8b 89 14 16 00 00 	mov    0x1614(%rcx),%r9d
  3d:	49                   	rex.WB
  3e:	c1                   	.byte 0xc1
  3f:	e1                   	.byte 0xe1