Description

In the Linux kernel, the following vulnerability has been resolved:

libbpf: Fix accessing BTF.ext core_relo header

Update btf_ext_parse_info() to ensure the core_relo header is present
before reading its fields. This avoids a potential buffer read overflow
reported by the OSS Fuzz project.

Classification

CVE ID: CVE-2025-37939

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.02% (probability of being exploited)

EPSS Percentile: 4.26% (scored less or equal to compared to others)

EPSS Date: 2025-06-18 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-37939
https://git.kernel.org/stable/c/d529411ec44535308c5d59cbeff74be6fe14b479
https://git.kernel.org/stable/c/3a67f60f0a8be10cea7a884a1a00e9feb6645657
https://git.kernel.org/stable/c/0a7c2a84359612e54328aa52030eb202093da6e2

Timeline