CVE-2026-80741
HighCVSS 7.1Exploitation Probability (EPSS)
Low risk5th percentile - higher than 5% of all known CVEs
Summary
In the Linux kernel's drm_log_draw_kmsg_record() function, there is an out-of-bounds read when the message length is 0. The function accesses s[len - 1], where len is unsigned int, causing a wrap to UINT_MAX when len=0, leading to an out-of-bounds read.
Risk Assessment
This could lead to system crashes or unpredictable behavior, especially during kernel message logging.
Recommendation
It is recommended to update the Linux kernel to a version containing the fix that adds an early return when len is 0.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS