linux-kernel - Re: [syzbot] [bpf?] UBSAN: shift-out-of-bounds in adjust_reg_min_max

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: <000000000000408e8f0610dac93b@google.com>
Date: Thu, 08 Feb 2024 00:42:05 -0800
From: syzbot <syzbot+46700eea57ecc7f84776@...kaller.appspotmail.com>
To: andrii@...nel.org, ast@...nel.org, bpf@...r.kernel.org, 
	daniel@...earbox.net, davem@...emloft.net, eddyz87@...il.com, 
	haoluo@...gle.com, hawk@...nel.org, john.fastabend@...il.com, 
	jolsa@...nel.org, kpsingh@...nel.org, kuba@...nel.org, 
	linux-kernel@...r.kernel.org, llvm@...ts.linux.dev, martin.lau@...ux.dev, 
	nathan@...nel.org, ndesaulniers@...gle.com, netdev@...r.kernel.org, 
	sdf@...gle.com, shung-hsi.yu@...e.com, song@...nel.org, 
	syzkaller-bugs@...glegroups.com, trix@...hat.com, yhs@...com, 
	yonghong.song@...ux.dev
Subject: Re: [syzbot] [bpf?] UBSAN: shift-out-of-bounds in adjust_reg_min_max_vals

syzbot suspects this issue was fixed by commit:

commit 96381879a370425a30b810906946f64c0726450e
Author: Andrii Nakryiko <andrii@...nel.org>
Date:   Sun Nov 12 01:05:58 2023 +0000

    bpf: generalize is_scalar_branch_taken() logic

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=16e65a9fe80000
start commit:   b1dfc0f76231 net: phy: skip LED triggers on PHYs on SFP mo..
git tree:       net
kernel config:  https://syzkaller.appspot.com/x/.config?x=e043d554f0a5f852
dashboard link: https://syzkaller.appspot.com/bug?extid=46700eea57ecc7f84776
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=128c8ad1e80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12456fb6e80000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: bpf: generalize is_scalar_branch_taken() logic

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