CVE-2022-50046 Information

Jun 19, 2025 cve

Description

In the Linux kernel the following vulnerability has been resolved:

net/sunrpc: fix potential memory leaks in rpc_sysfs_xprt_state_change()

The issue happens on some error handling paths. When the function fails to grab the object xprt it simply returns 0 forgetting to decrease the reference count of another object xps which is increased by rpc_sysfs_xprt_kobj_get_xprt_switch() causing refcount leaks. Also the function forgets to check whether xps is valid before using it which may result in NULL-dereferencing issues.

Fix it by adding proper error handling code when either xprt or xps is NULL.

Reference

https://git.kernel.org/stable/c/76fbeb1662b1c56514325118a07fba74dc4c79fe https://git.kernel.org/stable/c/bfc48f1b0505ffcb03a6d749139b7577d6b81ae0 https://git.kernel.org/stable/c/c0434f0e058648649250b8ed6078b66d773de723

CNNVD-202506-2331 (Published: 2025-06-18)

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