CVE-2026-64121

A flaw was found in the Linux kernel's Intermediate Functional Block ifb network device. A local user with network configuration privileges can trigger a slab-out-of-bounds read by configuring an asymmetric ifb device and querying its ethtool statistics. This vulnerability can lead to a kernel...

EUVD-2026-45806

In the Linux kernel, the following vulnerability has been resolved: net: ifb: report ethtool stats over numtxqueues ifbdevinit allocates dp-txprivate to dev-numtxqueues entries via kzallocobjstxp, dev-numtxqueues. Both IFB per-queue RX and TX stats live in those entries: ifbxmit updates txp-rxsta...

CVE-2026-64121 net: ifb: report ethtool stats over num_tx_queues

In the Linux kernel, the following vulnerability has been resolved: net: ifb: report ethtool stats over numtxqueues ifbdevinit allocates dp-txprivate to dev-numtxqueues entries via kzallocobjstxp, dev-numtxqueues. Both IFB per-queue RX and TX stats live in those entries: ifbxmit updates txp-rxsta...

CVE-2026-64121 net: ifb: report ethtool stats over num_tx_queues

In the Linux kernel, the following vulnerability has been resolved: net: ifb: report ethtool stats over numtxqueues ifbdevinit allocates dp-txprivate to dev-numtxqueues entries via kzallocobjstxp, dev-numtxqueues. Both IFB per-queue RX and TX stats live in those entries: ifbxmit updates txp-rxsta...

CVE-2026-64121

In the Linux kernel, the following vulnerability has been resolved: net: ifb: report ethtool stats over numtxqueues ifbdevinit allocates dp-txprivate to dev-numtxqueues entries via kzallocobjstxp, dev-numtxqueues. Both IFB per-queue RX and TX stats live in those entries: ifbxmit updates txp-rxsta...

CVE-2026-64121

CVE-2026-64121 affects the Linux kernel’s ifb (virtual Ethernet back-end) device. The vulnerability arises from a miswalk of per-queue ethtool statistics: the code allocates per-queue tx_private entries based on dev->num_tx_queues, but ethtool/statistics callbacks use real_num_rx_queues/real_n...

PT-2026-61438

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.1-rc2 Description An issue exists in the Intermediate Functional Block IFB driver where ethtool statistics are reported incorrectly. The ifb dev init function allocates memory for dp-tx private based on dev-num...