Description

In the Linux kernel, the following vulnerability has been resolved: regulator: core: fix unbalanced of node refcount in regulator_dev_lookup() I got the the following report: OF: ERROR: memory leak, expected refcount 1 instead of 2, of_node_get()/of_node_put() unbalanced - destroy cset entry: attach overlay node /i2c/pmic@62/regulators/exten In of_get_regulator(), the node is returned from of_parse_phandle() with refcount incremented, after using it, of_node_put() need be called.

References 9

• git.kernel.org https://git.kernel.org/stable/c/0e88505ac0a6ae97746bcdbd4b042ee9f20455ae
• git.kernel.org https://git.kernel.org/stable/c/2b93c58adddd98812ad928bbc2063038f3df1ffd
• git.kernel.org https://git.kernel.org/stable/c/2f98469c3141f8e42ba11075a273fb795bbad57f
• git.kernel.org https://git.kernel.org/stable/c/3ac888db0f67813d91373a9a61c840f815cd4ec9
• git.kernel.org https://git.kernel.org/stable/c/4dfcf5087db9a34a300d6b99009232d4537c3e6a
• git.kernel.org https://git.kernel.org/stable/c/cda1895f3b7f324ece1614308a815a3994983b97
• git.kernel.org https://git.kernel.org/stable/c/d39937f8de641c44a337cec4a2e5d3e8add20a7d
• git.kernel.org https://git.kernel.org/stable/c/f2b41b748c19962b82709d9f23c6b2b0ce9d2f91
• git.kernel.org https://git.kernel.org/stable/c/f48c474efe05cf9ce5e535b5e0ddd710e963936c

Remediation