CVE-2022-49790: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: Input: iforce - invert valid length check when fetching device IDs syzbot is reporting uninitialized value at iforce_init_device() [1], for commit 6ac0aec6b0a6 ("Input: iforce - allow callers supply data buffer when fetching device IDs") is checking that valid length is shorter than bytes to read. Since iforce_get_id_packet() stores valid length when returning 0, the caller needs to check that valid length is longer than or equals to bytes to read.

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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-908 CWE-908

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.3 — 5.4.225
linux	linux_kernel	5.5 — 5.10.156
linux	linux_kernel	5.11 — 5.15.80
linux	linux_kernel	5.16 — 6.0.10
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/24cc679abbf31477d0cc6106ec83c2fbae6b3cdf https://git.kernel.org/stable/c/5d53797ce7ce8fb1d95a5bebc5efa9418c4217a3 https://git.kernel.org/stable/c/6365569d62a75ddf53fb0c2936c16587a365984c https://git.kernel.org/stable/c/b8ebf250997c5fb253582f42bfe98673801ebebd https://git.kernel.org/stable/c/fdd57c20d4408cac3c3c535c120d244e083406c9

Frequently Asked Questions

What is CVE-2022-49790? +

In the Linux kernel, the following vulnerability has been resolved: Input: iforce - invert valid length check when fetching device IDs syzbot is reporting uninitialized value at iforce_init_device() [1], for commit 6ac0aec6b0a6 ("Input: iforce - allow callers supply data buffer when fetching device IDs") is checking that valid length is shorter than bytes to read. Since iforce_get_id_packet() stores valid length when returning 0, the caller needs to check that valid length is longer than or equals to bytes to read. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49790? +

CVE-2022-49790 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-2022-49790? +

CVE-2022-49790 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-2022-49790? +

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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