PT-2022-7660 · Linux+7 · Linux Kernel+7
Xiyu Yang
·
Published
2022-01-13
·
Updated
2024-09-17
·
CVE-2021-47624
CVSS v3.1
7.1
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to a reference count leak in the
rpc sysfs xprt state change function in the Linux kernel's sunrpc component. This leak occurs when the 3rd argument buf does not match with "offline", "online", or "remove", causing the function to return -EINVAL and forget to decrease the reference count of rpc xprt and rpc xprt switch objects. This can lead to reference count leaks of both unused objects. The issue can be exploited to cause a denial of service.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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Related Identifiers
Affected Products
Almalinux
Centos
Debian
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse