CVE-2022-50512: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential memory leak in ext4_fc_record_regions() As krealloc may return NULL, in this case 'state->fc_regions' may not be freed by krealloc, but 'state->fc_regions' already set NULL. Then will lead to 'state->fc_regions' memory leak.

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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	5.10 — 5.10.150
linux	linux_kernel	5.11 — 5.15.75
linux	linux_kernel	5.16 — 5.19.17
linux	linux_kernel	6.0 — 6.0.3

References

Advisories & Patches

https://git.kernel.org/stable/c/2cfb769d60a2a57eb3566765428b6131cd16dcfe https://git.kernel.org/stable/c/417b0455a0b6d0f60a2930592731d1f8340e24be https://git.kernel.org/stable/c/518566e71ad86b7c2f1bf6d9caee9588bb7ac158 https://git.kernel.org/stable/c/7069d105c1f15c442b68af43f7fde784f3126739 https://git.kernel.org/stable/c/a4058b869e6c5e517c79e30532a350d0f3115c3e

Frequently Asked Questions

What is CVE-2022-50512? +

In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential memory leak in ext4_fc_record_regions() As krealloc may return NULL, in this case 'state->fc_regions' may not be freed by krealloc, but 'state->fc_regions' already set NULL. Then will lead to 'state->fc_regions' memory leak. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-50512? +

CVE-2022-50512 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-2022-50512? +

CVE-2022-50512 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-2022-50512? +

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-2022-50512