What’s Vulnerable › Vulnerabilities

CVE-2021-47079: platform/x86: ideapad-laptop: fix a NULL pointer dereference

• 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: 2024-03-01 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ideapad-laptop: fix a NULL pointer dereference The third parameter of dytc_cql_command should not be NULL since it will be dereferenced immediately.

Affected products

• Linux kernel: from 5.12 before 5.12.7; 5.13-rc1, 5.13-rc2 — fixed in 5.12.7

How to fix

Upgrade to a fixed version: Linux kernel 5.12.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/beab753fe3b4e087411a850a64c6cd748544d8a1
• https://git.kernel.org/stable/c/ff67dbd554b2aaa22be933eced32610ff90209dd
• https://git.kernel.org/stable/c/beab753fe3b4e087411a850a64c6cd748544d8a1
• https://git.kernel.org/stable/c/ff67dbd554b2aaa22be933eced32610ff90209dd

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