Arturo Borrero Gonzalez

**Name of the Vulnerable Software and Affected Versions** Linux kernel version 5.10.0-0.bpo.5-amd64 **Description** A vulnerability has been resolved in the Linux kernel, specifically in the netfilter component. The issue was related to the `nft set pipapo avx2` function, where an `irq fpu usable()` check was added, and a fallback to a non-AVX2 version was implemented. The vulnerability was reported by Arturo, who provided a backtrace showing a warning message related to the `kernel fpu begin mask` function. The backtrace also listed various modules linked in, including `nft nat`, `nft chain nat`, and `nf tables`. The vulnerability appears to be related to a CPU and PID issue, but no further details are provided. **Recommendations** To resolve this issue, update the Linux kernel to a version that includes the fix for this vulnerability. Specifically, for Linux kernel version 5.10.0-0.bpo.5-amd64, update to a newer version that includes the `irq fpu usable()` check and fallback to non-AVX2 version in the `nft set pipapo avx2` function.