What’s Vulnerable › Vulnerabilities

CVE-2024-24856: NULL pointer deference in acpi_db_convert_to_package of Linux acpi module

• Severity: medium (CVSS 5.3 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: 2024-04-17 · updated 2026-06-17
• Weakness: CWE-476

Description

The memory allocation function ACPI_ALLOCATE_ZEROED does not guarantee a successful allocation, but the subsequent code directly dereferences the pointer that receives it, which may lead to null pointer dereference. To fix this issue, a null pointer check should be added. If it is null, return exception code AE_NO_MEMORY.

Affected products

• OpenAnolis Anolis OS: from v4.4 before v6.9 — fixed in v6.9

How to fix

Upgrade to a fixed version: OpenAnolis Anolis OS v6.9. Check the vendor advisory for mitigations.

References

• https://bugzilla.openanolis.cn/show_bug.cgi?id=8764
• https://bugzilla.openanolis.cn/show_bug.cgi?id=8764

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