CVE-2022-50007 Information

Jun 19, 2025 cve

Description

In the Linux kernel the following vulnerability has been resolved:

xfrm: fix refcount leak in __xfrm_policy_check()

The issue happens on an error path in __xfrm_policy_check(). When the fetching process of the object pols[1] fails the function simply returns 0 forgetting to decrement the reference count of pols[0] which is incremented earlier by either xfrm_sk_policy_lookup() or xfrm_policy_lookup(). This may result in memory leaks.

Fix it by decreasing the reference count of pols[0] in that path.

Reference

https://git.kernel.org/stable/c/0769491a8acd3e85ca4c3f65080eac2c824262df https://git.kernel.org/stable/c/1305d7d4f35ca6f214a2d23b075aa6a924cff3be https://git.kernel.org/stable/c/18e6b6e2555c93f5ca09f2b85ef1fa025c8accea https://git.kernel.org/stable/c/26ad2398fe4984f4f6f930bcb3bc9047fa77265b https://git.kernel.org/stable/c/63da7a2bbf3f28094920e0b8a17d2571a9bd842d https://git.kernel.org/stable/c/8f94b933103ee1bda119543369cc18a1be5536db https://git.kernel.org/stable/c/9c9cb23e00ddf45679b21b4dacc11d1ae7961ebe https://git.kernel.org/stable/c/d66c052879791313f90c0584420f196a038fb8b8

CNNVD-202506-2289 (Published: 2025-06-18)

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