CVE-2026-74707 xsk: validate metadata when processing requests

In the Linux kernel, the following vulnerability has been resolved: xsk: validate metadata when processing requests The zero-copy path validates TX metadata while obtaining the descriptor context, then reads it again later when preparing the hardware request. User space can change the metadata...

CVE-2026-74707 xsk: validate metadata when processing requests

In the Linux kernel, the following vulnerability has been resolved: xsk: validate metadata when processing requests The zero-copy path validates TX metadata while obtaining the descriptor context, then reads it again later when preparing the hardware request. User space can change the metadata...

CVE-2026-74707

CVE-2026-74707 affects the Linux kernel's xsk (AF_XDP sockets) component, specifically the zero-copy TX path . The root cause is a time-of-check-to-time-of-use (TOCTOU) flaw: TX metadata is validated when obtaining the descriptor context but then read again later when preparing the hardware reque...

EUVD-2026-64394

In the Linux kernel, the following vulnerability has been resolved: xsk: validate metadata when processing requests The zero-copy path validates TX metadata while obtaining the descriptor context, then reads it again later when preparing the hardware request. User space can change the metadata...

CVE-2026-74611

CVE-2026-74611 affects the Linux kernel TLS 1.3 receive path. When optimistic zero-copy is enabled via TLS_RX_EXPECT_NO_PAD, tls_decrypt_sg() advances msg->msg_iter to map user pages. If the decrypted record is not unpadded application data (e.g., a TLS 1.3 control record), tls_decrypt_sw() re...

CVE-2026-74611 tls: rx: restore msg_iter before TLS 1.3 optimistic retry

In the Linux kernel, the following vulnerability has been resolved: tls: rx: restore msgiter before TLS 1.3 optimistic retry tlsdecryptsg advances msg-msgiter when it maps user pages for the optimistic TLS 1.3 zero-copy path. If the decrypted record turns out not to be unpadded application data,...

CVE-2026-74707: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: xsk: validate metadata when processing requests The zero-copy path validates TX metadata while obtaining the descriptor context, then reads it again later when preparing the hardware request. User space can change the metadata...

PT-2026-79712

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the zero-copy path where TX metadata is validated during the acquisition of the descriptor context but read again when preparing the hardware request. This allows user...

CVE-2026-74707: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: xsk: validate metadata when processing requests The zero-copy path validates TX metadata while obtaining the descriptor context, then reads it again later when preparing the hardware request. User space can change the metadata...

Linux Distros Unpatched Vulnerability : CVE-2026-74707

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xsk: validate metadata when processing requests The zero-copy path validates TX metadata while obtaining the descriptor context, then reads it again later when...

Linux Distros Unpatched Vulnerability : CVE-2026-74611

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tls: rx: restore msgiter before TLS 1.3 optimistic retry tlsdecryptsg advances msg-msgiter when it maps user pages for the optimistic TLS 1.3 zero-copy path. If...

CVE-2026-74558

A flaw was found in the Linux kernel's zero-copy ZC transmit Tx batch path. When processing network packets, the system can fail to properly reclaim memory UMEM frames if it encounters invalid or oversized packet descriptors. This can lead to resource exhaustion, where memory is not returned to...

SUSE CVE-2026-74558

In the Linux kernel, the following vulnerability has been resolved: xsk: reclaim invalid Tx descriptors in ZC batch path The zero-copy Tx batch parser stops when it encounters an invalid descriptor. If this happens after one or more continuation descriptors, the Tx consumer can be advanced past...

AZL-96294 CVE-2026-74558 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: xsk: reclaim invalid Tx descriptors in ZC batch path The zero-copy Tx batch parser stops when it encounters an invalid descriptor. If this happens after one or more continuation descriptors, the Tx consumer can be advanced past...

CVE-2026-74558

In the Linux kernel, the following vulnerability has been resolved: xsk: reclaim invalid Tx descriptors in ZC batch path The zero-copy Tx batch parser stops when it encounters an invalid descriptor. If this happens after one or more continuation descriptors, the Tx consumer can be advanced past...

CVE-2026-74558

In the Linux kernel, the following vulnerability has been resolved: xsk: reclaim invalid Tx descriptors in ZC batch path The zero-copy Tx batch parser stops when it encounters an invalid descriptor. If this happens after one or more continuation descriptors, the Tx consumer can be advanced past...

UBUNTU-CVE-2026-74558

In the Linux kernel, the following vulnerability has been resolved: xsk: reclaim invalid Tx descriptors in ZC batch path The zero-copy Tx batch parser stops when it encounters an invalid descriptor. If this happens after one or more continuation descriptors, the Tx consumer can be advanced past...

EUVD-2026-59623

In the Linux kernel, the following vulnerability has been resolved: xsk: reclaim invalid Tx descriptors in ZC batch path The zero-copy Tx batch parser stops when it encounters an invalid descriptor. If this happens after one or more continuation descriptors, the Tx consumer can be advanced past...

CVE-2026-74558

In the Linux kernel, the following vulnerability has been resolved: xsk: reclaim invalid Tx descriptors in ZC batch path The zero-copy Tx batch parser stops when it encounters an invalid descriptor. If this happens after one or more continuation descriptors, the Tx consumer can be advanced past...

CVE-2026-74558

CVE-2026-74558 describes a Linux kernel vulnerability in the xsk ZC (zero-copy) batch path. The issue arises when the zero-copy Tx batch parser encounters an invalid descriptor or when a packet exceeds xdp_zc_max_segs. In these cases, descriptors can be misinterpreted, potentially advancing the T...