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Thu, 20 Nov 2025 03:18:28 -0800 (PST) Message-ID: <9e066a2f-28fd-4da7-bca8-c10f7b58f811@gmail.com> Date: Thu, 20 Nov 2025 12:17:53 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [linux-next:master] [mempool] 022e94e2c3: BUG:KASAN:double-free_in_mempool_free To: Christoph Hellwig , kernel test robot Cc: oe-lkp@lists.linux.dev, lkp@intel.com, Vlastimil Babka , linux-mm@kvack.org, Alexander Potapenko , Andrey Konovalov , Dmitry Vyukov , Vincenzo Frascino , kasan-dev@googlegroups.com References: <202511201309.55538605-lkp@intel.com> <20251120072726.GA31171@lst.de> Content-Language: en-US From: Andrey Ryabinin In-Reply-To: <20251120072726.GA31171@lst.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: BE68C40014 X-Rspamd-Server: rspam07 X-Stat-Signature: 5hm67yebsthxyiomqzr3b1zanpaw78gu X-Rspam-User: X-HE-Tag: 1763637511-511121 X-HE-Meta: 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 KhtsGCYp 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 11/20/25 8:27 AM, Christoph Hellwig wrote: > Maybe I'm misunderstanding the trace, but AFAICS this comes from > the KASAN kunit test that injects a double free, and the trace > shows that KASAN indeed detected the double free and everything is > fine. Or did I misunderstand the report? > Right, the report comes from the test, so it's expected behavior.