------------[ cut here ]------------ WARNING: CPU: 1 PID: 29894 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226 Modules linked in: CPU: 1 PID: 29894 Comm: syz.8.8682 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226 Code: 24 45 31 f6 31 ff 89 de e8 7d 94 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 00 91 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:ffffc90002fefc80 EFLAGS: 00010006 RAX: ffffffff81a08ea0 RBX: 0000000000000000 RCX: ffff88802a4d0000 RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: dffffc0000000000 R09: 1ffffffff203a218 R10: dffffc0000000000 R11: fffffbfff203a219 R12: ffff88802a4d1788 R13: dffffc0000000000 R14: ffffc90002fefce8 R15: 0000000000000000 FS: 00007f6562cd86c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000251f9000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff3 DR7: 0000000000000600 Call Trace: 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+0x34/0x718 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+0x163/0x2e0 kernel/trace/bpf_trace.c:1915 trace_tlb_flush+0xe6/0x110 include/trace/events/tlb.h:38 flush_tlb_func+0x4c7/0x5b0 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+0x4a/0xc0 arch/x86/kernel/smp.c:243 asm_sysvec_call_function_single+0x16/0x20 arch/x86/include/asm/idtentry.h:684 RIP: 0033:0x7f6564a7dac9 Code: 90 b8 01 00 00 00 b9 01 00 00 00 eb ec 0f 1f 40 00 b8 ea ff ff ff 48 85 ff 74 28 48 85 d2 74 23 49 89 c8 b8 b3 01 00 00 0f 05 <48> 85 c0 7c 14 74 01 c3 31 ed 4c 89 c7 ff d2 48 89 c7 b8 3c 00 00 RSP: 002b:00007f6562cd81c0 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 00007f6564a390e0 RCX: 00007f6564a7dac9 RDX: 00007f6564a390e0 RSI: 0000000000000058 RDI: 00007ffe51603180 RBP: 00007f6562cd86c0 R08: 00007f6562cd86c0 R09: 00007ffe51603267 R10: 0000000000000008 R11: 0000000000000202 R12: ffffffffffffffe8 R13: 000000000000000b R14: 00007ffe51603180 R15: 00007ffe51603268