CVE-2021-47298

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

bpf, sockmap: Fix potential memory leak on unlikely error case

If skb_linearize is needed and fails we could leak a msg on the error handling. To fix ensure we kfree the msg block before returning error. Found during code review.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-401

Affected software

VendorProductVersions
LinuxLinux>= 4363023d2668e621b0743db351a9555d6e6ea57e, < 715f378f42909c401ec043f5150c4fdf57fb8889; >= 4363023d2668e621b0743db351a9555d6e6ea57e, < 6c508a1c6c62793dc6e6872cad4b200097bab7c9; >= 4363023d2668e621b0743db351a9555d6e6ea57e, < 7e6b27a69167f97c56b5437871d29e9722c3e470
LinuxLinux5.10

References

Timeline

Published
May 21, 2024
Last modified
Jun 17, 2026
NVD status
Analyzed

Related CVEs from 2021

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CVE-2021-47298: Medium severity, CVSS 5.5 | Vulnix