------------[ cut here ]------------ WARNING: CPU: 1 PID: 559 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226 Modules linked in: CPU: 1 PID: 559 Comm: syz.3.28564 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226 Code: 24 45 31 f6 31 ff 89 de e8 ed 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 70 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: ffffffff819ed740 RBX: 0000000000000000 RCX: ffff888060603b80 RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed100c0c0771 R10: ffffed100c0c0771 R11: 1ffff1100c0c0770 R12: ffff888060605308 R13: 00007ffffffff000 R14: ffffc90000dd0da8 R15: 0000000000000000 FS: 00007f564702a6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5648d59df0 CR3: 000000005fdb7000 CR4: 00000000003506e0 DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000200000000300 DR3: 0000000000000000 DR6: 00000000ffff0ff1 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+0x34/0x880 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 asm_sysvec_call_function_single+0x16/0x20 arch/x86/include/asm/idtentry.h:684 RIP: 0010:lock_release+0x584/0x870 kernel/locking/lockdep.c:5647 Code: 00 00 00 00 9c 8f 84 24 80 00 00 00 f6 84 24 81 00 00 00 02 75 75 f7 44 24 50 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 2f 00 00 00 00 66 43 c7 44 2f 09 00 00 43 c6 44 2f 0b 00 RSP: 0000:ffffc90002f9f9c0 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 873c6d1b77d29638 RCX: 9cd05219da380200 RDX: 0000000000000003 RSI: ffffffff8a0b28c0 RDI: ffffffff8a59a240 RBP: ffffc90002f9fad8 R08: dffffc0000000000 R09: fffffbfff1ad3196 R10: fffffbfff1ad3196 R11: 1ffffffff1ad3195 R12: ffff8880606046e8 R13: dffffc0000000000 R14: ffff888060604660 R15: 1ffff920005f3f44 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+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: 0033:0x7f5648d59df0 Code: Unable to access opcode bytes at RIP 0x7f5648d59dc6. RSP: 002b:00007f564702a118 EFLAGS: 00010246 RAX: fffffffffffffeb8 RBX: 00007f564702a6c0 RCX: 00007f5648df7449 RDX: 00007f564702ad78 RSI: 0000000000000058 RDI: 00007f564702a6c0 RBP: 0000000000000000 R08: 00007f564702a6c0 R09: 00007ffef25a8797 R10: 0000000000000008 R11: 0000000000000206 R12: ffffffffffffffa8 R13: 000000000000000b R14: 00007ffef25a86b0 R15: 00007ffef25a8798 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 00 00 add %al,(%rax) 4: 9c pushf 5: 8f 84 24 80 00 00 00 pop 0x80(%rsp) c: f6 84 24 81 00 00 00 testb $0x2,0x81(%rsp) 13: 02 14: 75 75 jne 0x8b 16: f7 44 24 50 00 02 00 testl $0x200,0x50(%rsp) 1d: 00 1e: 74 01 je 0x21 20: fb sti 21: 48 c7 44 24 60 0e 36 movq $0x45e0360e,0x60(%rsp) 28: e0 45 * 2a: 4b c7 04 2f 00 00 00 movq $0x0,(%r15,%r13,1) <-- trapping instruction 31: 00 32: 66 43 c7 44 2f 09 00 movw $0x0,0x9(%r15,%r13,1) 39: 00 3a: 43 c6 44 2f 0b 00 movb $0x0,0xb(%r15,%r13,1)