Divide-By-Zero Vulnerability in Linux Kernel Product
CVE-2025-39742
What is CVE-2025-39742?
A vulnerability has been identified in the Linux kernel related to the hfi1 driver, where a divide-by-zero error may occur. The issue arises within the function responsible for computing the hardware thread mask, particularly when dividing the number of online CPUs by the number of core siblings. If the latter value is zero, it leads to a runtime error. This has been mitigated by repositioning the zero check, ensuring error prevention during the computation process.
Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.
Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.
Affected Version(s)
Linux b094a36f90975373c3a241839869217a65f17d81 < 9bba1a9994c523b44db64f63b564b4719ea2b7ef
Linux b094a36f90975373c3a241839869217a65f17d81 < 1a7cf828ed861de5be1aff99e10f114b363c19d3
Linux b094a36f90975373c3a241839869217a65f17d81 < 9d3211cb61a0773a2440d0a0698c1e6e7429f907