linux-kernel - Re: [syzbot] [bpf?] WARNING in convert_ctx

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Message-ID: <688b72e9.050a0220.5d226.0018.GAE@google.com>
Date: Thu, 31 Jul 2025 06:43:05 -0700
From: syzbot <syzbot+ccac90e482b2a81d74aa@...kaller.appspotmail.com>
To: andrii@...nel.org, ast@...nel.org, bpf@...r.kernel.org, 
	daniel@...earbox.net, eddyz87@...il.com, haoluo@...gle.com, 
	john.fastabend@...il.com, jolsa@...nel.org, kpsingh@...nel.org, 
	linux-kernel@...r.kernel.org, martin.lau@...ux.dev, paul.chaignon@...il.com, 
	sdf@...ichev.me, song@...nel.org, syzkaller-bugs@...glegroups.com, 
	yonghong.song@...ux.dev
Subject: Re: [syzbot] [bpf?] WARNING in convert_ctx_accesses

syzbot has bisected this issue to:

commit 0df1a55afa832f463f9ad68ddc5de92230f1bc8a
Author: Paul Chaignon <paul.chaignon@...il.com>
Date:   Tue Jul 1 18:36:15 2025 +0000

    bpf: Warn on internal verifier errors

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=17d6aca2580000
start commit:   e8d780dcd957 Merge tag 'slab-for-6.17' of git://git.kernel..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1436aca2580000
console output: https://syzkaller.appspot.com/x/log.txt?x=1036aca2580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=d32de89be62206c8
dashboard link: https://syzkaller.appspot.com/bug?extid=ccac90e482b2a81d74aa
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=131049bc580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11cc2cf0580000

Reported-by: syzbot+ccac90e482b2a81d74aa@...kaller.appspotmail.com
Fixes: 0df1a55afa83 ("bpf: Warn on internal verifier errors")

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