CVE-2022-50887
Published Dec 30, 2025
Modified Apr 15, 2026
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.
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References
Other References
https://git.kernel.org/stable/c/0e88505ac0a6ae97746bcdbd4b042ee9f20455ae
https://git.kernel.org/stable/c/2b93c58adddd98812ad928bbc2063038f3df1ffd
https://git.kernel.org/stable/c/2f98469c3141f8e42ba11075a273fb795bbad57f
https://git.kernel.org/stable/c/3ac888db0f67813d91373a9a61c840f815cd4ec9
https://git.kernel.org/stable/c/4dfcf5087db9a34a300d6b99009232d4537c3e6a
https://git.kernel.org/stable/c/cda1895f3b7f324ece1614308a815a3994983b97
https://git.kernel.org/stable/c/d39937f8de641c44a337cec4a2e5d3e8add20a7d
https://git.kernel.org/stable/c/f2b41b748c19962b82709d9f23c6b2b0ce9d2f91
https://git.kernel.org/stable/c/f48c474efe05cf9ce5e535b5e0ddd710e963936c
Frequently Asked Questions
What is CVE-2022-50887? +
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.
How do I check if I'm vulnerable to CVE-2022-50887? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.