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AJvYcCWAfOWnM3bP6iesIx3kn7ivtqhJvtPJCh3+pLarOnZBDweFh+kdJS3jqCkhTe2QHSSIQ4hkCZTJDGwThX5WgUPi6n8qaMc6GkJeobHu15eXXq2xl6wK8HorJ24TTAFfzBLnPaiAaesHAWGgXSHMrgYKbA1yijMRUMO8Db9jR0FFXg== X-Gm-Message-State: AOJu0Yx0owF9/YwJz5D85ngkz4nyLILg6tmbck3PzY/NORNVQmr4vg2G QsJNZD4t36I2w5NTj1F5g6oKgZz8NO5EEk+Iv7J3+tV5Nfjxtjgw X-Google-Smtp-Source: AGHT+IGnnPdxAw+Fi4Vu9kUTtkIaWdxJFr0nMLCwqPlwY5RQOvDfHfRPVq/sbngDpx5c7XLeXyQ5yg== X-Received: by 2002:a05:6a20:9c99:b0:1c0:e997:7081 with SMTP id adf61e73a8af0-1c904fb6619mr16269021637.29.1724149920673; Tue, 20 Aug 2024 03:32:00 -0700 (PDT) Received: from kernelexploit-virtual-machine.localdomain ([121.185.186.233]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2035040319dsm8575905ad.23.2024.08.20.03.31.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Aug 2024 03:32:00 -0700 (PDT) From: Jeongjun Park To: aha310510@gmail.com Cc: alibuda@linux.alibaba.com, davem@davemloft.net, dust.li@linux.alibaba.com, edumazet@google.com, guwen@linux.alibaba.com, jaka@linux.ibm.com, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, tonylu@linux.alibaba.com, ubraun@linux.vnet.ibm.com, utz.bacher@de.ibm.com, wenjia@linux.ibm.com, syzkaller Subject: Re: [PATCH net,v5,1/2] net/smc: initialize ipv6_pinfo_offset in smc_inet6_prot and add smc6_sock structure Date: Tue, 20 Aug 2024 19:31:52 +0900 Message-Id: <20240820103152.337880-1-aha310510@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240815043845.38871-1-aha310510@gmail.com> References: <20240815043845.38871-1-aha310510@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Jeongjun Park wrote: > Since smc_inet6_prot does not initialize ipv6_pinfo_offset, inet6_create() > copies an incorrect address value, sk + 0 (offset), to inet_sk(sk)->pinet6. > > To solve this, we need to add code to smc_inet6_prot to initialize > ipv6_pinfo_offset. > > Fixes: d25a92ccae6b ("net/smc: Introduce IPPROTO_SMC") > Signed-off-by: Jeongjun Park Reported-by: syzkaller