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[95.194.217.125]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5368704677fsm883002e87.36.2024.09.16.06.54.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Sep 2024 06:54:50 -0700 (PDT) From: Uladzislau Rezki X-Google-Original-From: Uladzislau Rezki Date: Mon, 16 Sep 2024 15:54:45 +0200 To: Juefei Pu Cc: Xingyu Li , Uladzislau Rezki , paulmck@kernel.org, frederic@kernel.org, neeraj.upadhyay@kernel.org, joel@joelfernandes.org, josh@joshtriplett.org, boqun.feng@gmail.com, rostedt@goodmis.org, mathieu.desnoyers@efficios.com, jiangshanlai@gmail.com, qiang.zhang1211@gmail.com, rcu@vger.kernel.org, linux-kernel@vger.kernel.org, Yu Hao Subject: Re: BUG: WARNING in kvfree_rcu_bulk Message-ID: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: > After several tests, I found that the same PoC can cause multiple > different crashes for some unknown reason. Thus, I suspect that the > bug is capable of performing unintended memory writing without being > caught by KASAN. > I tested the PoC on the latest kernel, Linux 6.11 rc7 and it can still > cause crashes. > For reproducibility, I've created a GitHub repo at > https://github.com/TomAPU/Linux611BugReport, which contains the > software versions we used, the QEMU arguments we used to boot up the > kernel, the kernel config we used, the pre-compiled kernel image, > Dockerfile that can be used to compile the kernel. > I hope this repo will be helpful for analyzing the bug. > Could you please help to bisect this bug then? Thanks! -- Uladzislau Rezki