CVE-2026-43222
Analyzed Analyzed - Analysis Complete
Buffer Overflow in Linux Kernel AV1 Decoder

Publication date: 2026-05-06

Last updated on: 2026-05-08

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: media: verisilicon: AV1: Fix tile info buffer size Each tile info is composed of: row_sb, col_sb, start_pos and end_pos (4 bytes each). So the total required memory is AV1_MAX_TILES * 16 bytes. Use the correct #define to allocate the buffer and avoid writing tile info in non-allocated memory.
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Meta Information
Published
2026-05-06
Last Modified
2026-05-08
Generated
2026-06-16
AI Q&A
2026-05-06
EPSS Evaluated
2026-06-15
NVD
CVE-2026-43222
EUVD
EUVD-2026-27782
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 6.7 (inc) to 6.12.75 (exc)
linux linux_kernel From 6.13 (inc) to 6.18.16 (exc)
linux linux_kernel From 6.19 (inc) to 6.19.6 (exc)
linux linux_kernel From 6.5 (inc) to 6.6.128 (exc)
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Exploitability
CWE
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is related to the Linux kernel's handling of the Verisilicon AV1 media component. Specifically, it involves the incorrect allocation of memory for the tile info buffer. Each tile info consists of four 4-byte fields (row_sb, col_sb, start_pos, and end_pos), requiring a total memory size of AV1_MAX_TILES multiplied by 16 bytes. The vulnerability occurred because the buffer was not allocated using the correct size defined by the appropriate #define, which could lead to writing tile info data into memory that was not properly allocated.

Impact Analysis

The impact of this vulnerability could include memory corruption due to writing beyond the allocated buffer size. This may lead to system instability, crashes, or potentially exploitable conditions depending on how the corrupted memory is used. However, specific impacts such as privilege escalation or data leakage are not detailed in the provided information.

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