What’s Vulnerable › Vulnerabilities

CVE-2022-49790: Input: iforce - invert valid length check when fetching device IDs

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-01 · updated 2026-06-17
• Weakness: CWE-908

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.

Affected products

• Linux kernel: from 5.3 before 5.4.225; from 5.5 before 5.10.156; from 5.11 before 5.15.80; from 5.16 before 6.0.10; 6.1-rc1, 6.1-rc2, 6.1-rc3, 6.1-rc4, 6.1-rc5 — fixed in 5.10.156, 5.15.80, 5.4.225, 6.0.10

How to fix

Upgrade to a fixed version: Linux kernel 5.10.156, 5.15.80, 5.4.225, 6.0.10. Check the vendor advisory for mitigations.

References

• 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

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