------------[ cut here ]------------
WARNING: CPU: 1 PID: 12932 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 12932 Comm: syz.0.2324 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 8d f6 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 10 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: ffffffff819ed900 RBX: 0000000000000000 RCX: ffff888065401dc0
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed100ca803b9
R10: ffffed100ca803b9 R11: 1ffff1100ca803b8 R12: ffff888065403548
R13: 00007ffffffff000 R14: ffffc90000dd0da8 R15: 0000000000000000
FS: 00007f4a1be2f6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4a1db645a0 CR3: 000000003fde7000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
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+0x34/0x2a0
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
asm_sysvec_call_function_single+0x16/0x20 arch/x86/include/asm/idtentry.h:684
RIP: 0010:lock_page_memcg+0x39c/0x410 mm/memcontrol.c:2079
Code: df 80 3c 08 00 74 08 4c 89 ff e8 7f 93 fb ff 4d 89 2f 48 c7 44 24 20 0e 36 e0 45 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 18 <48> c7 04 01 00 00 00 00 66 c7 44 01 09 00 00 c6 44 01 0b 00 65 48
RSP: 0000:ffffc90002f2f9c0 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 0000000000000286 RCX: 1ffff920005e5f3c
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888016a7d080
RBP: ffffc90002f2fa90 R08: dffffc0000000000 R09: ffffed1002d4fa11
R10: ffffed1002d4fa11 R11: 1ffff11002d4fa10 R12: ffff888016a7c670
R13: ffff888016a7d080 R14: ffffea0001cbd478 R15: ffff888016a7c000
page_add_file_rmap+0x185/0x940 mm/rmap.c:1219
do_set_pte+0x3c9/0x530 mm/memory.c:4069
filemap_map_pages+0xe7e/0x1390 mm/filemap.c:3344
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+0x257d/0x43b0 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: 0033:0x7f4a1db645a0
Code: Unable to access opcode bytes at RIP 0x7f4a1db64576.
RSP: 002b:00007f4a1be2f118 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00007f4a1be2f6c0 RCX: 00007f4a1db7f357
RDX: ffffffffffffffb0 RSI: 0000000000000018 RDI: 00007f4a1be2f130
RBP: 0000000000000000 R08: 00007f4a1be2f6c0 R09: 00007ffc63794ac7
R10: 0000000000000008 R11: 0000000000000246 R12: ffffffffffffffa8
R13: 000000000000000b R14: 00007ffc637949e0 R15: 00007ffc63794ac8
----------------
Code disassembly (best guess):
0: df 80 3c 08 00 74 filds 0x7400083c(%rax)
6: 08 4c 89 ff or %cl,-0x1(%rcx,%rcx,4)
a: e8 7f 93 fb ff call 0xfffb938e
f: 4d 89 2f mov %r13,(%r15)
12: 48 c7 44 24 20 0e 36 movq $0x45e0360e,0x20(%rsp)
19: e0 45
1b: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
22: fc ff df
25: 48 8b 4c 24 18 mov 0x18(%rsp),%rcx
* 2a: 48 c7 04 01 00 00 00 movq $0x0,(%rcx,%rax,1) <-- trapping instruction
31: 00
32: 66 c7 44 01 09 00 00 movw $0x0,0x9(%rcx,%rax,1)
39: c6 44 01 0b 00 movb $0x0,0xb(%rcx,%rax,1)
3e: 65 gs
3f: 48 rex.W