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h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=B3depReg/IGMEtUNuDRiMZ2IiMTU9kg4eUCMLIafaOgPrEcPIb0N2BqxURQDkLZTW JNwXF2Hn8lBCQlv0hLLvPFkns39+Oe43La/4jxTbRtPmWe9D5fI8v1PoqsiUs9SpN+ K7I4WTktlu4X8t+TaPf7TXK8FOvSL2PshK62RxQA= Date: Wed, 21 Feb 2024 09:40:29 +0100 From: Greg KH To: "GONG, Ruiqi" Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, Johannes Weiner , Michal Hocko , Roman Gushchin , Shakeel Butt , Muchun Song , cgroups@vger.kernel.org, linux-mm@kvack.org, Wang Weiyang , Xiu Jianfeng Subject: Re: [PATCH stable] memcg: add refcnt for pcpu stock to avoid UAF problem in drain_all_stock() Message-ID: <2024022119-bogged-action-c877@gregkh> References: <20240221081801.69764-1-gongruiqi1@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240221081801.69764-1-gongruiqi1@huawei.com> X-Stat-Signature: g88qczx584q4bgeq7roxc6y5t5z4pp6y X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: C458BA001A X-Rspam-User: X-HE-Tag: 1708504834-623974 X-HE-Meta: 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 yQi4vhTo i+QPSVkNL+tXL0SkRF/Si2N7N6nwcJnaoZ5GFyAErgv1r01f1Zpf/s3helEaodooSmxnKgDVf6cRCQ+zFzTGTCTQvaU30I2LTTzelYPD4C0rRNyaeHLOj7DEH4B/FZRXdQ84d34FifX6AjfR+7XO9ApoawoP/syXdmjcqAfjrqkpow3loRV0d0P/uhKsAlfCDKJ47WdTAXVz++AEMBzP3fMRKTkaVVgHztqoAje0crHlRzjbqty+bxXyhvn61WGg/lXBg+lO0S9qQuA0= 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 Wed, Feb 21, 2024 at 04:18:01PM +0800, GONG, Ruiqi wrote: > commit 1a3e1f40962c445b997151a542314f3c6097f8c3 upstream. > > There was a kernel panic happened on an in-house environment running > 3.10, and the same problem was reproduced on 4.19: Now queued up, thanks! greg k-h