CVE-2022-50358: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: brcmfmac: return error when getting invalid max_flowrings from dongle When firmware hit trap at initialization, host will read abnormal max_flowrings number from dongle, and it will cause kernel panic when doing iowrite to initialize dongle ring. To detect this error at early stage, we directly return error when getting invalid max_flowrings(>256).

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CVSS v3.1 Score

4.2

MEDIUM

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

Affected Products

Vendor	Product	Versions
linux	linux_kernel	< 5.4.229
linux	linux_kernel	5.5 — 5.10.163
linux	linux_kernel	5.11 — 5.15.86
linux	linux_kernel	5.16 — 6.0.16
linux	linux_kernel	6.1 — 6.1.2

References

Advisories & Patches

https://git.kernel.org/stable/c/10c4b63d09a5b0ebf1b61af1dae7f25555cf58b6 https://git.kernel.org/stable/c/200347eb3b2608cc8b54c13dd1d5e03809ba2eb2 https://git.kernel.org/stable/c/2aca4f3734bd717e04943ddf340d49ab62299a00 https://git.kernel.org/stable/c/2e8bb402b060a6c22160de3d72cee057698177c8 https://git.kernel.org/stable/c/3cc9299036bdb647408e11e41de3eb1ff6d428cd https://git.kernel.org/stable/c/87f126b25fa8562196f0f4c0aa46a446026199bf

Frequently Asked Questions

What is CVE-2022-50358? +

In the Linux kernel, the following vulnerability has been resolved: brcmfmac: return error when getting invalid max_flowrings from dongle When firmware hit trap at initialization, host will read abnormal max_flowrings number from dongle, and it will cause kernel panic when doing iowrite to initialize dongle ring. To detect this error at early stage, we directly return error when getting invalid max_flowrings(>256). It has a CVSS v3.1 base score of 4.2 (MEDIUM).

How severe is CVE-2022-50358? +

CVE-2022-50358 has a CVSS v3.1 score of 4.2 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-2022-50358? +

CVE-2022-50358 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-2022-50358? +

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-2022-50358