Vulnerability in Linux

[ Description ]Official description

In the Linux kernel, the following vulnerability has been resolved: tty: vcc: zero-initialize control packet in vcc_send_ctl() The stack-allocated struct vio_vcc pkt was partially initialized, leaving the tag.stype_env field uninitialized before being sent via ldc_write(), potentially leaking kernel stack data to the LDC peer.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund18 Oct 2026WID-SEC-2026-4019

  Linux Kernel: Multiple vulnerabilities Translated from German

  CVE-2026-98866CVE-2026-98624CVE-2026-98745+326 more CVEs

[ References ]References

• git.kernel.org/stable/c/1f71f565e3585da1098ff19ca3c24687dab59185
• git.kernel.org/stable/c/399aa38af1d78001612e3130b2056ea392a355ca
• git.kernel.org/stable/c/4335278d0e75395cbfaf71c84b521df56d69e936
• git.kernel.org/stable/c/4b59afc8af3143ae03e4f9b81ca66aa5a1c1ebed
• git.kernel.org/stable/c/6f1a08ef02825b440126c406ea63ef6128888e15