CVE-2026-43009

The CVE-2026-43009 family concerns the Linux kernel BPF verifier. Connected sources describe a bug where backtrack_insn did not correctly account for atomic fetch variants (BPF_ATOMIC with BPF_FETCH) during memory-precision tracking, causing the verifier to prune paths incorrectly. The fix extend...

PT-2026-36426

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Linux kernel eBPF verifier where the backtrack insn function fails to correctly handle atomic fetch operations. When encountering a BPF STX instruction with BPF...