What’s Vulnerable › Vulnerabilities

CVE-2026-80741: drm/log: Fix out-of-bounds read on empty message length

• 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: 2026-09-03 · updated 2026-09-04

Description

In the Linux kernel, the following vulnerability has been resolved: drm/log: Fix out-of-bounds read on empty message length drm_log_draw_kmsg_record() accesses s[len - 1] to strip the trailing newline, but len is unsigned int. If len is 0, the subtraction wraps to UINT_MAX, causing an out-of-bounds read. Add an early return when len is 0.

Affected products

• Linux kernel: 6.14 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/16a2716910ecf7d31bf3c033ee7c506a0b00b2ee
• https://git.kernel.org/stable/c/16bcea56f4205314ec2aa04a7ec74e5261d253c7
• https://git.kernel.org/stable/c/60baa179ed1333535f6e2da4133511db55278ee4

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