From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C5D08ECAAD3 for ; Fri, 9 Sep 2022 04:19:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229668AbiIIETo (ORCPT ); Fri, 9 Sep 2022 00:19:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51284 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229488AbiIIETg (ORCPT ); Fri, 9 Sep 2022 00:19:36 -0400 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1B61E2677 for ; Thu, 8 Sep 2022 21:19:25 -0700 (PDT) Received: by mail-il1-f198.google.com with SMTP id z9-20020a921a49000000b002f0f7fb57e3so407781ill.2 for ; Thu, 08 Sep 2022 21:19:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; 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charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 7e18e42e4b28 Linux 6.0-rc4 git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=1551da55080000 kernel config: https://syzkaller.appspot.com/x/.config?x=f4d613baa509128c dashboard link: https://syzkaller.appspot.com/bug?extid=8b2a08dfbd25fd933d75 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1798cab7080000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16ccbdc5080000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/da260c675b46/disk-7e18e42e.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/58f7bbbaa6ff/vmlinux-7e18e42e.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8b2a08dfbd25fd933d75@syzkaller.appspotmail.com ------------[ cut here ]------------ verifier log line truncated - local buffer too short WARNING: CPU: 1 PID: 3604 at kernel/bpf/verifier.c:300 bpf_verifier_vlog+0x267/0x3c0 kernel/bpf/verifier.c:300 Modules linked in: CPU: 1 PID: 3604 Comm: syz-executor146 Not tainted 6.0.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 RIP: 0010:bpf_verifier_vlog+0x267/0x3c0 kernel/bpf/verifier.c:300 Code: f5 95 3d 0c 31 ff 89 ee e8 06 07 f0 ff 40 84 ed 75 1a e8 7c 0a f0 ff 48 c7 c7 c0 e7 f3 89 c6 05 d4 95 3d 0c 01 e8 fb 4c ae 07 <0f> 0b e8 62 0a f0 ff 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 RSP: 0018:ffffc900039bf8a0 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff888017a19210 RCX: 0000000000000000 RDX: ffff888021fb1d80 RSI: ffffffff8161f408 RDI: fffff52000737f06 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff89f5aba0 R13: 00000000000003ff R14: ffff888017a19214 R15: ffff888012705800 FS: 0000555555cba300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020100000 CR3: 000000001bf9e000 CR4: 0000000000350ee0 Call Trace: __btf_verifier_log+0xbb/0xf0 kernel/bpf/btf.c:1375 __btf_verifier_log_type+0x451/0x8f0 kernel/bpf/btf.c:1413 btf_func_proto_check_meta+0x117/0x160 kernel/bpf/btf.c:3905 btf_check_meta kernel/bpf/btf.c:4588 [inline] btf_check_all_metas+0x3c1/0xa70 kernel/bpf/btf.c:4612 btf_parse_type_sec kernel/bpf/btf.c:4748 [inline] btf_parse kernel/bpf/btf.c:5031 [inline] btf_new_fd+0x939/0x1e70 kernel/bpf/btf.c:6710 bpf_btf_load kernel/bpf/syscall.c:4314 [inline] __sys_bpf+0x13bd/0x6130 kernel/bpf/syscall.c:4998 __do_sys_bpf kernel/bpf/syscall.c:5057 [inline] __se_sys_bpf kernel/bpf/syscall.c:5055 [inline] __x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:5055 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fb092221c29 Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff5b0a6878 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb092221c29 RDX: 0000000000000020 RSI: 0000000020000240 RDI: 0000000000000012 RBP: 00007fb0921e5dd0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb0921e5e60 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches