https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-21T19:56:26.918228+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/fkie_cve-2021-47326 fkie_cve-2021-47326 2026-10-21T19:56:26.922869+00:00

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

 https://cve.radiocsirt.org/vuln/ghsa-ppm9-9qx2-3mjr GHSA-ppm9-9qx2-3mjr 2026-10-21T19:56:26.922942+00:00

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

x86/signal: Detect and prevent an alternate signal stack overflow

The kernel pushes context on to the userspace stack to prepare for the user's signal handler. When the user has supplied an alternate signal stack, via sigaltstack(2), it is easy for the kernel to verify that the stack size is sufficient for the current hardware context.

Check if writing the hardware context to the alternate stack will exceed it's size. If yes, then instead of corrupting user-data and proceeding with the original signal handler, an immediate SIGSEGV signal is delivered.

Refactor the stack pointer check code from on_sig_stack() and use the new helper.

While the kernel allows new source code to discover and use a sufficient alternate signal stack size, this check is still necessary to protect binaries with insufficient alternate signal stack size from data corruption.

 https://cve.radiocsirt.org/vuln/ubuntu-cve-2021-47326 UBUNTU-CVE-2021-47326 2026-10-21T19:56:26.922992+00:00

Affected: Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:18.04:LTS: linux-aws-5.0, Ubuntu:18.04:LTS: linux-aws-5.3, Ubuntu:18.04:LTS: linux-azure, Ubuntu:18.04:LTS: linux-azure-5.3, Ubuntu:18.04:LTS: linux-azure-edge, Ubuntu:18.04:LTS: linux-gcp, Ubuntu:18.04:LTS: linux-gcp-5.3, Ubuntu:18.04:LTS: linux-gke-4.15, Ubuntu:18.04:LTS: linux-gke-5.4 and 54 more

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.