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[83.28.44.95]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49cfd3f8192sm93253635e9.3.2026.09.05.01.43.34 (version=TLS1_2 cipher=AES128-SHA bits=128/128); Sat, 05 Sep 2026 01:43:35 -0700 (PDT) Date: Sat, 5 Sep 2026 10:43:31 +0200 From: Michal Pecio To: syzbot Cc: gregkh@linuxfoundation.org, i@zenithal.me, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, shuah@kernel.org, syzkaller-bugs@googlegroups.com, valentina.manea.m@gmail.com, syzkaller@googlegroups.com Subject: Re: [syzbot] [usb?] general protection fault in vhci_hcd_probe Message-ID: <20260905104331.6d4288df.michal.pecio@gmail.com> In-Reply-To: <6a9bceeb.a5e650b3.26d8a.0008.GAE@google.com> References: <6a88066b.ae6ddae5.3da009.002d.GAE@google.com> <6a9bceeb.a5e650b3.26d8a.0008.GAE@google.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Sat, 05 Sep 2026 01:12:27 -0700, syzbot wrote: > syzbot has found a reproducer for the following issue on: > > HEAD commit: 9d80aa4617b3 Add linux-next specific files for 20260903 > git tree: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > console output: https://syzkaller.appspot.com/x/log.txt?x=10adf4f9580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=bb4a32c282cc2ec7 > dashboard link: https://syzkaller.appspot.com/bug?extid=7300affe388249d66dfe > compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=121c7215580000 Who or what is coming up with these ideas and even commenting it? // Iterate platform devices dir = opendir("/sys/bus/platform/devices/"); while ((ent = readdir(dir)) != NULL) { // Set driver override snprintf(path, sizeof(path), "/sys/bus/platform/devices/%s/driver_override", ent->d_name); fd = open(path, O_WRONLY); // Bind to vhci_hcd fd = open("/sys/bus/platform/drivers/vhci_hcd/bind", O_WRONLY);