CVE-2026-120831
Libslirp: libslirp: queue pointer corruption in if_output() leading to denial of service
Description
A flaw was found in libslirp in if_output(). When moving a session from the fast queue to the batch queue, the code unlinked and reinserted an arbitrary packet via ifm->m_nextpkt instead of the session queue head, corrupting queue pointers. A guest generating burst traffic could crash the host networking process, causing a denial of service.
CWE
Affected
Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 8; Red Hat Red Hat Enterprise Linux 9; Red Hat Red Hat OpenShift Container Platform 4; Red Hat Red Hat OpenShift Container Platform 4; Red Hat Red Hat OpenShift Container Platform 4; Red Hat Red Hat OpenShift Container Platform 5