CVE-2021-47490: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: fix memleak in ttm_transfered_destroy We need to cleanup the fences for ghost objects as well. Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214029 Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214447

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CVSS v3.1 Score

5.5

MEDIUM

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

Weakness Type (CWE)

CWE-401 CWE-401

Affected Products

Vendor	Product	Versions
linux	linux_kernel	< 5.4.157
linux	linux_kernel	5.5 — 5.10.77
linux	linux_kernel	5.11 — 5.14.16
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/0db55f9a1bafbe3dac750ea669de9134922389b5 https://git.kernel.org/stable/c/132a3d998d6753047f22152731fba2b0d6b463dd https://git.kernel.org/stable/c/0db55f9a1bafbe3dac750ea669de9134922389b5 https://git.kernel.org/stable/c/132a3d998d6753047f22152731fba2b0d6b463dd https://git.kernel.org/stable/c/960b1fdfc39aba8f41e9e27b2de0c925c74182d9 https://git.kernel.org/stable/c/bbc920fb320f1c241cc34ac85edaa0058922246a https://git.kernel.org/stable/c/bd99782f3ca491879e8524c89b1c0f40071903bd https://git.kernel.org/stable/c/c21b4002214c1c7e7b627b9b53375612f7aab6db

Frequently Asked Questions

What is CVE-2021-47490? +

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: fix memleak in ttm_transfered_destroy We need to cleanup the fences for ghost objects as well. Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214029 Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214447 It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2021-47490? +

CVE-2021-47490 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2021-47490? +

CVE-2021-47490 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2021-47490? +

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.

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CVE-2021-47490