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Fri, 9 Apr 2021 09:41:33 +0000 (GMT) From: Seung-Woo Kim To: linux-modules@vger.kernel.org, lucas.de.marchi@gmail.com Cc: sw0312.kim@samsung.com, sungguk.na@samsung.com Subject: [PATCH] libkmod-config: fix a memory leak when kmod_list_append() fails Date: Fri, 9 Apr 2021 18:44:23 +0900 Message-Id: <20210409094423.966-1-sw0312.kim@samsung.com> X-Mailer: git-send-email 2.19.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrMKsWRmVeSWpSXmKPExsWy7bCmvq6vYkGCwctnphYNs7+zWqzunMBo sWPeQUaLGZNfsjmweOycdZfdo2/LKkaPz5vkApijsm0yUhNTUosUUvOS81My89JtlbyD453j Tc0MDHUNLS3MlRTyEnNTbZVcfAJ03TJzgLYpKZQl5pQChQISi4uV9O1sivJLS1IVMvKLS2yV UgtScgosC/SKE3OLS/PS9ZLzc60MDQyMTIEKE7IzpvxdxVJwhbXixoRbjA2MZ1m6GDk5JARM JPatXsvcxcjFISSwg1Fi3YpnLBDOJ0aJ3e9XgFUJCXxjlLjySxum4/mJ24wQ8b2MEl8bCyAa vjBKHNr8gQkkwSagI7F/yW9WEFtEwEZiyutHQIM4OJgFjCTeXmcGCQsLBElsedQBVsIioCpx fPU3dhCbV8BSYtHlNVDXyUtc2HCLFSIuKHFy5hOwODNQvHnrbGaImmXsEqsvm0DYLhLfDx9j h7CFJV4d3wJlS0m87G9jB7lTQqCZUWLpkl8sEE4Po8ScRbdZIaqMJfYvncwEcaimxPpd+hBh RYmdv+cyQizmk3j3tYcVpERCgFeio00IokRFYufRSWwQYSmJWRuCIUwPiS0HZSEhFSvxb9I2 1gmM8rOQPDMLyTOzENYuYGRexSiWWlCcm55abFhgiByjmxjBqU3LdAfjxLcf9A4xMnEwHmKU 4GBWEuFtbs5PEOJNSaysSi3Kjy8qzUktPsRoCgzeicxSosn5wOSaVxJvaGpkbGxsYWJoZmpo qCTOm2TwIF5IID2xJDU7NbUgtQimj4mDU6qBafX9lEMnZabEnW+9vlVv96T8zcn6bEm3+DkT XRYuPZo0f5rkkYzfR6OitnAfux0klbrBWOynwqnUFnu1nsUhJ2ZFfu57y/fsSdzjryd/yEqK Oz9/cKsi94lM5jPpg2eFhNa32FZ+DBESYOfqOX2crXaN9LryXAfXT3+OWSYz9TNZ6Vk8/f47 uNx7/nSBD2k2fu/X3skK1vDbfp3n5s/cdgEzLTlRo8Bzex2V75dnGjkJOX+TXL7howrbrCjv wsCVDScmai8X2x39SfyK15ZppkK3Q2ZtOK5TpKWyKfyD4wdO03oDLcEDl+0u14pHTTqcPWHD Cy7vRWmXymT7vge/X5spXJdluvFLq86ytnu3lFiKMxINtZiLihMB5cTsE/YDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprKLMWRmVeSWpSXmKPExsWy7bCSnK6vYkGCwY1N/BYNs7+zWqzunMBo sWPeQUaLGZNfsjmweOycdZfdo2/LKkaPz5vkApijuGxSUnMyy1KL9O0SuDKm/F3FUnCFteLG hFuMDYxnWboYOTkkBEwknp+4zdjFyMUhJLCbUeL4yQ5WiISUxNxv24ESHEC2sMThw8UQNZ8Y JT5vPMsEUsMmoCOxf8lvsHoRATuJryvOM4PYzEBD357cyw5iCwsESPw+fBwsziKgKnF89Tew OK+ApcSiy2ugjpCXuLDhFitEXFDi5MwnLBBz5CWat85mnsDINwtJahaS1AJGplWMkqkFxbnp ucWGBYZ5qeV6xYm5xaV56XrJ+bmbGMEhp6W5g3H7qg96hxiZOBgPMUpwMCuJ8DY35ycI8aYk VlalFuXHF5XmpBYfYpTmYFES573QdTJeSCA9sSQ1OzW1ILUIJsvEwSnVwKQS68un594cZsTe 5DHb7WxLt6JZ//9XhpkFwQd4Yx0XJTwRuDYtcc1MFnerqDWpPN4zZSKf+DL2bM54s0/Akyut /vX7/SrlckpJrQEeIUa/Dj7bXnOz5RaT4+rdxrOcJYx/H339Yo/PF4YvNT2fXJfkhp+K2/L9 3idOtTizjsscD//qfTo9XUXlxH9bnx0XLv8xqUsIihf/yTz/iMQK6x2zK+0S+GftrZbZKna1 xYLrwPOPG84rzO7K8Vm8YFaDCtuTqfGSG5Mzwys/pf41ea32XvHCSkff1ttVH1c3LFxo9lHc +0T70kbVT4eWL7wnVcr4/3plSN++vx5W4la7/tezfhewdG8rU576w2GSuxJLcUaioRZzUXEi ANSTKMmoAgAA X-CMS-MailID: 20210409094133epcas1p2cfb973c9ea1065ffbb018e98f9a60b10 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: SVC_REQ_APPROVE CMS-TYPE: 101P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20210409094133epcas1p2cfb973c9ea1065ffbb018e98f9a60b10 References: Precedence: bulk List-ID: >From kmod_config_new(), when kmod_list_append() fails, fix not list-appended kmod_config_path leak. Signed-off-by: Seung-Woo Kim --- libkmod/libkmod-config.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libkmod/libkmod-config.c b/libkmod/libkmod-config.c index 4fdd40f86dea..e83621b34157 100644 --- a/libkmod/libkmod-config.c +++ b/libkmod/libkmod-config.c @@ -909,8 +909,10 @@ int kmod_config_new(struct kmod_ctx *ctx, struct kmod_config **p_config, memcpy(cf->path, path, pathlen); tmp = kmod_list_append(path_list, cf); - if (tmp == NULL) + if (tmp == NULL) { + free(cf); goto oom; + } path_list = tmp; } -- 2.19.2