Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: [syzbot] [bpf?] [net?] general protection fault in bpf_struct_ops_link_create | From | Daniel Borkmann <> | Date | Fri, 24 Mar 2023 08:26:37 +0100 |
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On 3/24/23 7:11 AM, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 226bc6ae6405 Merge branch 'Transit between BPF TCP congest.. > git tree: bpf-next > console+strace: https://syzkaller.appspot.com/x/log.txt?x=139c727ac80000 > kernel config: https://syzkaller.appspot.com/x/.config?x=cab35c936731a347 > dashboard link: https://syzkaller.appspot.com/bug?extid=71ccc0fe37abb458406b > 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=11ef67a1c80000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=119c20fec80000 > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/ac055f681ed7/disk-226bc6ae.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/3895cc8a51d2/vmlinux-226bc6ae.xz > kernel image: https://storage.googleapis.com/syzbot-assets/1b18bb9fae05/bzImage-226bc6ae.xz > > The issue was bisected to: > > commit 68b04864ca425d1894c96b8141d4fba1181f11cb > Author: Kui-Feng Lee <kuifeng@meta.com> > Date: Thu Mar 23 03:24:00 2023 +0000 > > bpf: Create links for BPF struct_ops maps. > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=116731b1c80000 > final oops: https://syzkaller.appspot.com/x/report.txt?x=136731b1c80000 > console output: https://syzkaller.appspot.com/x/log.txt?x=156731b1c80000
Kui-Feng, please take a look & fix.
> IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+71ccc0fe37abb458406b@syzkaller.appspotmail.com > Fixes: 68b04864ca42 ("bpf: Create links for BPF struct_ops maps.")
Thanks, Daniel
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