CVE-2022-50321: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: fix potential memory leak in brcmf_netdev_start_xmit() The brcmf_netdev_start_xmit() returns NETDEV_TX_OK without freeing skb in case of pskb_expand_head() fails, add dev_kfree_skb() to fix it. Compile tested only.

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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	4.13 — 4.14.308
linux	linux_kernel	4.15 — 4.19.276
linux	linux_kernel	4.20 — 5.4.235
linux	linux_kernel	5.5 — 5.10.173
linux	linux_kernel	5.11 — 5.15.99
linux	linux_kernel	5.16 — 6.1.16
linux	linux_kernel	6.2 — 6.2.3

References

Advisories & Patches

https://git.kernel.org/stable/c/212fde3fe76e962598ce1d47b97cc78afdfc71b3 https://git.kernel.org/stable/c/3a4d18318f473e97d628f410215b3fac32d07aed https://git.kernel.org/stable/c/4c55fdebc1c358de96bfab52ed309d58a3ba66ef https://git.kernel.org/stable/c/7f159116d620615779adbf88a5d94713702216d8 https://git.kernel.org/stable/c/d869a189505224601e310c7769cb90b0e2f60b31 https://git.kernel.org/stable/c/e08e6812efb6a8c676e733de0518594d1517e0d9 https://git.kernel.org/stable/c/e5d01e85cf46628647cd696cb72ba4659b18967f https://git.kernel.org/stable/c/e8ef89e5b89ee041a94eecfb6c31fcc237f9168c

Frequently Asked Questions

What is CVE-2022-50321? +

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: fix potential memory leak in brcmf_netdev_start_xmit() The brcmf_netdev_start_xmit() returns NETDEV_TX_OK without freeing skb in case of pskb_expand_head() fails, add dev_kfree_skb() to fix it. Compile tested only. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-50321? +

CVE-2022-50321 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-2022-50321? +

CVE-2022-50321 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-2022-50321? +

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-2022-50321