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A quartet of Linux local root vulns: DirtyAH6, PPPoEject, TUNderflow, and DiagSpill

medoss_secPublished 2026-09-18

<p>Posted by manizada on Sep 17</p>Hi folks,<br /> <br /> Emailing here now that the embargo agreed upon with linux-distros@ has<br /> expired.<br /> <br /> Flagging four local root vulnerabilities in the Linux kernel, originally<br /> reported to security () kernel org and the relevant maintainers in<br /> mid-July:<br /> <br /> DirtyAH6 (CVE-2026-80844), TUNderflow (CVE-2026-81000), PPPoEject<

MITRE ATT&CK techniques

Indicators of compromise

Original source: https://seclists.org/oss-sec/2026/q3/822