------------[ cut here ]------------ WARNING: CPU: 0 PID: 3680 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0 Modules linked in: CPU: 0 PID: 3680 Comm: syz.2.14 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226 Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 eb c6 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 d4 c6 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff RSP: 0018:ffffc90000007d08 EFLAGS: 00010006 RAX: ffffffff81aa939c RBX: 0000000000000000 RCX: ffff888079cfd940 RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffffff81aa92ad R09: ffffed1017206763 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000000000008 R14: 0000000000000000 R15: ffffc90000007d68 FS: 00007f6815a156c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6815a14f98 CR3: 0000000079bc8000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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_56907bf5a05a58a2+0x3a/0x5c0 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:1880 [inline] bpf_trace_run2+0x19e/0x340 kernel/trace/bpf_trace.c:1917 __traceiter_tlb_flush+0x6c/0xc0 include/trace/events/tlb.h:38 trace_tlb_flush+0xed/0x110 include/trace/events/tlb.h:38 flush_tlb_func+0x480/0x590 arch/x86/mm/tlb.c:851 flush_smp_call_function_queue+0x2b5/0x760 kernel/smp.c:628 __sysvec_call_function_single+0x9a/0x250 arch/x86/kernel/smp.c:248 sysvec_call_function_single+0x89/0xb0 arch/x86/kernel/smp.c:243 asm_sysvec_call_function_single+0x16/0x20 arch/x86/include/asm/idtentry.h:646 RIP: 0010:generic_exec_single+0x3d3/0x4d0 kernel/smp.c:532 Code: df eb 27 e8 0f d8 0b 00 0f 0b e9 58 fd ff ff e8 03 d8 0b 00 e8 fe ca bf 08 4d 85 ff 0f 84 5e ff ff ff e8 f0 d7 0b 00 fb 31 c0 <48> c7 44 24 20 0e 36 e0 45 4b c7 04 2c 00 00 00 00 66 43 c7 44 2c RSP: 0018:ffffc900011bf9e0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc90003e9f000 RSI: 0000000000000279 RDI: 000000000000027a RBP: ffffc900011bfab0 R08: ffffffff817481c2 R09: fffffbfff20e2439 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 1ffff92000237f40 R14: 0000000000000046 R15: 0000000000000200 smp_call_function_single+0x257/0x530 kernel/smp.c:755 task_function_call kernel/events/core.c:120 [inline] perf_install_in_context+0x6b6/0xa90 kernel/events/core.c:3016 __do_sys_perf_event_open kernel/events/core.c:12741 [inline] __se_sys_perf_event_open+0x3608/0x4510 kernel/events/core.c:12335 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f681759cff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6815a15038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f6817754f80 RCX: 00007f681759cff9 RDX: dfefffffffffffff RSI: 0000000000000000 RDI: 0000000020000700 RBP: 00007f681760f296 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f6817754f80 R15: 00007fff272dddb8 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: eb 27 jmp 0x29 2: e8 0f d8 0b 00 call 0xbd816 7: 0f 0b ud2 9: e9 58 fd ff ff jmp 0xfffffd66 e: e8 03 d8 0b 00 call 0xbd816 13: e8 fe ca bf 08 call 0x8bfcb16 18: 4d 85 ff test %r15,%r15 1b: 0f 84 5e ff ff ff je 0xffffff7f 21: e8 f0 d7 0b 00 call 0xbd816 26: fb sti 27: 31 c0 xor %eax,%eax * 29: 48 c7 44 24 20 0e 36 movq $0x45e0360e,0x20(%rsp) <-- trapping instruction 30: e0 45 32: 4b c7 04 2c 00 00 00 movq $0x0,(%r12,%r13,1) 39: 00 3a: 66 data16 3b: 43 rex.XB 3c: c7 .byte 0xc7 3d: 44 rex.R 3e: 2c .byte 0x2c