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CVE-2022-50051: ASoC: SOF: debug: Fix potential buffer overflow by snprintf()

• Severity: high (CVSS 7.8 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: 2025-06-18 · updated 2026-06-17
• Weakness: CWE-787

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: debug: Fix potential buffer overflow by snprintf() snprintf() returns the would-be-filled size when the string overflows the given buffer size, hence using this value may result in the buffer overflow (although it's unrealistic). This patch replaces with a safer version, scnprintf() for papering over such a potential issue.

Affected products

• Linux kernel: from 5.11 before 5.15.63; from 5.16 before 5.19.4; 6.0-rc1 — fixed in 5.15.63, 5.19.4

How to fix

Upgrade to a fixed version: Linux kernel 5.15.63, 5.19.4. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1eb123ce985e6cf302ac6e3f19862d132d86fa8f
• https://git.kernel.org/stable/c/a67971a17604ae7de278fb09243432459afc51e1
• https://git.kernel.org/stable/c/b318b9dd2ac67f39d0338ce563879d1f59a0347a

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