CVE-2026-74601 ring-buffer: Use current_context for safe per-CPU buffer swap

🗓️ 22 Aug 2026 15:31:50Reported by GoogleType

osv🔗 osv.dev👁 6 Views

Race in Linux kernel ring-buffer swap_cpu allows unsafe per-CPU buffer swap via committing counter.

Source	Link
git	www.git.kernel.org/stable/c/22709117d9ae95e52673685f98caac7c356a8227
git	www.git.kernel.org/stable/c/26662bc8fced1d668fa1aa146eda085bfc67bd0b
git	www.git.kernel.org/stable/c/597f279b7b4a06412e3d965e98cc36e181cdbede
git	www.git.kernel.org/stable/c/5b926fb04cb9ef3156dcf88c69a59d3d1a1c4f9f
git	www.git.kernel.org/stable/c/5e6e2a18c20e88167d414f666032792e8bf19b80
git	www.git.kernel.org/stable/c/6b524e6b234e45c7f5f90d13b042c6f57f80105c
git	www.git.kernel.org/stable/c/ad7e10c7ea89af45ac1bf1814855d45da472703d
git	www.git.kernel.org/stable/c/f27bdc43077e4fcb5557dfc315ee8d91e741f483
github	www.github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74601.json
nvd	www.nvd.nist.gov/vuln/detail/CVE-2026-74601

24 Aug 2026 11:47Current

5.9Medium risk

Vulners AI Score5.9

Linux kernel ring-buffer race condition per-CPU swap committing counter buffer state