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CVE-2022-48739: ASoC: hdmi-codec: Fix OOB memory accesses

• Severity: high (CVSS 7.1 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: 2024-06-20 · updated 2026-08-04
• Weakness: CWE-125

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: hdmi-codec: Fix OOB memory accesses Correct size of iec_status array by changing it to the size of status array of the struct snd_aes_iec958. This fixes out-of-bounds slab read accesses made by memcpy() of the hdmi-codec driver. This problem is reported by KASAN.

Affected products

• Linux kernel: before 5.15.22; from 5.16 before 5.16.8; 5.17-rc1, 5.17-rc2 — fixed in 5.15.22, 5.16.8

How to fix

Upgrade to a fixed version: Linux kernel 5.15.22, 5.16.8. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/06feec6005c9d9500cd286ec440aabf8b2ddd94d
• https://git.kernel.org/stable/c/10007bd96b6c4c3cfaea9e76c311b06a07a5e260
• https://git.kernel.org/stable/c/1552e66be325a21d7eff49f46013fb402165a0ac
• https://git.kernel.org/stable/c/06feec6005c9d9500cd286ec440aabf8b2ddd94d
• https://git.kernel.org/stable/c/10007bd96b6c4c3cfaea9e76c311b06a07a5e260
• https://git.kernel.org/stable/c/1552e66be325a21d7eff49f46013fb402165a0ac

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