Kernel memory corruption via unchecked adapter index
Published Oct 21, 2024 · Updated May 11, 2026
Out-of-bounds write in the Linux kernel ASIHPI driver from 2.6.35 allows local users to corrupt kernel memory through adapter firmware. In HPIMSGX__init(), a successful firmware response supplied adapter_index, which indexed hpi_entry_points without an HPI_MAX_ADAPTERS check. Reachability requires an ASIHPI-driven AudioScience adapter whose firmware returns an oversized index; the write can crash the kernel or alter adjacent kernel data.
Summary
What happened
Out-of-bounds write in the Linux kernel ASIHPI driver from 2.6.35 allows local users to corrupt kernel memory through adapter firmware. In HPIMSGX__init(), a successful firmware response supplied adapter_index, which indexed hpi_entry_points without an HPI_MAX_ADAPTERS check. Reachability requires an ASIHPI-driven AudioScience adapter whose firmware returns an oversized index; the write can crash the kernel or alter adjacent kernel data.
The record
- CVE
- CVE-2024-50007
- Published
- Oct 21, 2024
- Updated
- May 11, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-129
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 21, 2024CVE publishedPublication date reported by the CVE source.
- May 11, 2026Record updatedLatest update available in the CVE record.
Exploitability
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- Affected versionversion=2.6.35
- Affected versionversion=719f82d3987aad4cc9f46d19c35f362672545cad <219587bca2678e31700ef09ecec178ba1f735674
- Affected versionversion=719f82d3987aad4cc9f46d19c35f362672545cad <36ee4021bcc37b834996e79740d095d6f8dd948f
- Affected versionversion=719f82d3987aad4cc9f46d19c35f362672545cad <7a55740996701f7b2bc46dc988b60ef2e416a747
- Affected versionversion=719f82d3987aad4cc9f46d19c35f362672545cad <7b986c7430a6bb68d523dac7bfc74cbd5b44ef96
- Affected versionversion=719f82d3987aad4cc9f46d19c35f362672545cad <876d04bf5a8ac1d6af5afd258cd37ab83ab2cf3d
- Affected versionversion=719f82d3987aad4cc9f46d19c35f362672545cad <a6bdb691cf7b66dcd929de1a253c5c42edd2e522
- Affected versionversion=719f82d3987aad4cc9f46d19c35f362672545cad <ad7248a5e92587b9266c62db8bcc4e58de53e372
- Affected versionversion=719f82d3987aad4cc9f46d19c35f362672545cad <ce2953e44829ec54bcbb57e9d890fc8af0900c80
- Affected versionversion=719f82d3987aad4cc9f46d19c35f362672545cad <e658227d9d4f4e122d81690fdbc0d438b10288f5
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What is affected?
Published CVSS scores
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Attacks
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