linux-kernel - Re: [syzbot] general protection fault in btf_decl_tag

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <0000000000009b6eaa05d71a8c06@google.com>
Date:   Thu, 03 Feb 2022 02:25:11 -0800
From:   syzbot <syzbot+53619be9444215e785ed@...kaller.appspotmail.com>
To:     andrii@...nel.org, ast@...nel.org, bpf@...r.kernel.org,
        clang-built-linux@...glegroups.com, daniel@...earbox.net,
        john.fastabend@...il.com, kafai@...com, kpsingh@...nel.org,
        linux-kernel@...r.kernel.org, llvm@...ts.linux.dev,
        nathan@...nel.org, ndesaulniers@...gle.com, netdev@...r.kernel.org,
        songliubraving@...com, syzkaller-bugs@...glegroups.com, yhs@...com
Subject: Re: [syzbot] general protection fault in btf_decl_tag_resolve

syzbot has bisected this issue to:

commit b5ea834dde6b6e7f75e51d5f66dac8cd7c97b5ef
Author: Yonghong Song <yhs@...com>
Date:   Tue Sep 14 22:30:15 2021 +0000

    bpf: Support for new btf kind BTF_KIND_TAG

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=12183484700000
start commit:   b7892f7d5cb2 tools: Ignore errors from `which' when search..
git tree:       bpf
final oops:     https://syzkaller.appspot.com/x/report.txt?x=11183484700000
console output: https://syzkaller.appspot.com/x/log.txt?x=16183484700000
kernel config:  https://syzkaller.appspot.com/x/.config?x=5044676c290190f2
dashboard link: https://syzkaller.appspot.com/bug?extid=53619be9444215e785ed
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16454914700000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16ceb884700000

Reported-by: syzbot+53619be9444215e785ed@...kaller.appspotmail.com
Fixes: b5ea834dde6b ("bpf: Support for new btf kind BTF_KIND_TAG")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection