What’s Vulnerable › Vulnerabilities

CVE-2024-47661: drm/amd/display: Avoid overflow from uint32_t to uint8_t

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-10-09 · updated 2026-10-30
• Weakness: CWE-190

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Avoid overflow from uint32_t to uint8_t [WHAT & HOW] dmub_rb_cmd's ramping_boundary has size of uint8_t and it is assigned 0xFFFF. Fix it by changing it to uint8_t with value of 0xFF. This fixes 2 INTEGER_OVERFLOW issues reported by Coverity.

Affected products

• Linux kernel: before 6.10.9 — fixed in 6.10.9
• Linux: 4.15 — fixed in 6.11

How to fix

Upgrade to a fixed version: Linux kernel 6.10.9; Linux 6.11. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1f95056cae7bded5614ecda415af1d6d4428494e
• https://git.kernel.org/stable/c/30d1b783b6eeaf49d311a072c70d618d993d01ec
• https://git.kernel.org/stable/c/6fc6ef4cd858a45479fed881e326d2449a2c9e51
• https://git.kernel.org/stable/c/d6b54900c564e35989cf6813e4071504fa0a90e0

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