CVE-2026-99026

Published: Ott 23, 2026 Last Modified: Ott 23, 2026
ExploitDB:
Other exploit source:
Google Dorks:

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.

https://git.kernel.org/stable/c/489114c9ecae44e523361a4b3e610ee5ebd9189c
https://git.kernel.org/stable/c/961563117626f4681623077ec0cfd86f86da0d49
https://git.kernel.org/stable/c/f34b1bcac4581a5bd3daf9eff90f175e736b54aa