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

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Message-ID: <68c939d3.050a0220.2ff435.03c1.GAE@google.com>
Date: Tue, 16 Sep 2025 03:20:03 -0700
From: syzbot <syzbot+3afc814e8df1af64b653@...kaller.appspotmail.com>
To: andrii@...nel.org, ast@...nel.org, bpf@...r.kernel.org, 
	daniel@...earbox.net, eddyz87@...il.com, haoluo@...gle.com, 
	henriette.herzog@....de, john.fastabend@...il.com, jolsa@...nel.org, 
	kpsingh@...nel.org, linux-kernel@...r.kernel.org, luis.gerhorst@....de, 
	martin.lau@...ux.dev, memxor@...il.com, sdf@...ichev.me, song@...nel.org, 
	syzkaller-bugs@...glegroups.com, yonghong.song@...ux.dev
Subject: Re: [syzbot] [bpf?] WARNING in maybe_exit_scc

syzbot has bisected this issue to:

commit d6f1c85f22534d2d9fea9b32645da19c91ebe7d2
Author: Luis Gerhorst <luis.gerhorst@....de>
Date:   Tue Jun 3 21:24:28 2025 +0000

    bpf: Fall back to nospec for Spectre v1

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=17753762580000
start commit:   f83ec76bf285 Linux 6.17-rc6
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=14f53762580000
console output: https://syzkaller.appspot.com/x/log.txt?x=10f53762580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=8f01d8629880e620
dashboard link: https://syzkaller.appspot.com/bug?extid=3afc814e8df1af64b653
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=104a947c580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14467b62580000

Reported-by: syzbot+3afc814e8df1af64b653@...kaller.appspotmail.com
Fixes: d6f1c85f2253 ("bpf: Fall back to nospec for Spectre v1")

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