Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: team: free skb when broadcast has no txable port bc_transmit() sends the original skb through the last txable port. When no port is txable, it returns false without consuming the skb, but team_xmit() still returns NETDEV_TX_OK. AF_PACKET sends then retain the skb and its socket write-memory charge. A TX-enabled, link-down port keeps the broadcast transmit op installed. Carrier can stay up through a second link-up, TX-disabled port or be forced on by userspace. Free the original skb on the no-port path while leaving the existing drop accounting intact. Discovered by Sashiko during review of previous commit.
References
- https://git.kernel.org/stable/c/489114c9ecae44e523361a4b3e610ee5ebd9189c
- https://git.kernel.org/stable/c/961563117626f4681623077ec0cfd86f86da0d49
- https://git.kernel.org/stable/c/f34b1bcac4581a5bd3daf9eff90f175e736b54aa
FAQ
What is CVE-2026-99026?
CVE-2026-99026 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: net: team: free skb when broadcast has no txable port bc_transmit() sends the original skb through the last txable port. When no p...
How severe is CVE-2026-99026?
CVSS scoring is not yet available for CVE-2026-99026. Check NVD for updates.
Is there a patch for CVE-2026-99026?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.