Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: skbuff: Account for tail adjustment during pull operations Extending the tail of a data structure may have some unexpected side effects if a program uses a helper function like BPFFUNCskbpulldata to read partial content beyond th...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mptcp: handle large GSO sizes After the committed code below, TCP sockets and MPTCP subflows can generate egress packets that are larger than 64K. This exceeds the maximum DSS data size; the packet length is misrepresented over t...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: TSO: Fix unbalanced DMA map/unmap for non-paged SKB data In cases where the non-paged data of an SKB contains a protocol header and payload that need to be transmitted on a platform where the DMA AXI address width is...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Net: Properly handles tunneled traffic when using GSO fallback for IPV6CSUM. NETIFFIPV6CSUM only indicates support for packet checksum offloading without IPv6 extension headers. Packets with extension headers must rely on...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: sctp: Linearize cloned GSO packets in sctprcv. The cloned headskb still shares these frag SKBs in the fraglist with the original headskb. Accessing these frag SKBs is not safe. syzbot reported two bugs caused by the use of...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Net: Fixing segmentation issues with forwarding fraglists for GRO packets. This patch improves the handling of GSO segmentation by properly checking the SKBGSODODGY flag for GSO packets with a fraglist. This addresses low...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net: Avoid potential underflow in qdiscpktleninit with UFO After committing 7c6d2ecbda83 “net: Be more cautious regarding silly GSO requests from user space”, the virtionethdrtoskb function added sanity checks to detect...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: added more sanity checks to qdiscpktleninit. One of the approaches handles SKBGSODODGY, assuming that skb-len is greater than hdrlen. The function virtionethdrtoskb does not fully dissect TCP headers; it only ensures that th...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: net: lan743x: Fixed the memory leak issue when GSO is enabled. The skb has always been mapped to the LS descriptor. Previously, the skb was mapped to the EXT descriptor when the number of fragments was zero and GSO was enabled...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: netsched: schsfq: Fixed a potential crash during handling of gsoskb. SFQ assumes that it is always able to queue at least one packet. However, after the committed change, sch-q.len can be inflated by packets in sch-gsoskb. An...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15

In the Linux kernel, the following vulnerability has been resolved: net: nsh: Use the correct macoffset to unwind the gsoskb in nshgsosegment. As shown in the call trace, the skbpanic occurred due to an incorrect skb-macheader in nshgsoSegment. Invalid opcode: 0000 1 PREEMPT SMP KASAN PTI CPU: 3...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net: Missing check for virtio Two missing checks in virtionethdrtoskb allowed syzbot to crash kernels again. 1. After the skbsegment function, the buffer may become non-linear nrfrags != 0. However, since the SKBTXSHAREDFRAG...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: gso: Fixed a panic that occurred when using a fraglist with mixed head allocation types. Since the commit 3dcbdb134f32 “net: gso: Fixed an error in skbsegment when splitting a gsosize mangled skb having linear-headed...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100752)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100752 advisory. In the Linux kernel, the following vulnerability has been resolved: ibmveth: Disable GSO for packets with small MSS Some physical adapters on Power systems do not...

CVE-2026-68123

In the Linux kernel, the following vulnerability has been resolved: openvswitch: fix GSO userspace truncation underflow OVSACTIONATTRTRUNC currently stores a delta from the original skb length in OVSCBskb-cutlen. When a later userspace action segments a GSO skb, queuegsopackets reuses that delta...

CVE-2026-68426

CVE-2026-68426 affects the Linux kernel xfrm subsystem. A bug in async crypto handling can leave skb->prev pointing to freed memory when GSO segments are stolen, causing a use-after-free. Reported impact includes potential denial of service or, in some cases, arbitrary code execution. The fix ...

CVE-2026-68123 openvswitch: fix GSO userspace truncation underflow

In the Linux kernel, the following vulnerability has been resolved: openvswitch: fix GSO userspace truncation underflow OVSACTIONATTRTRUNC currently stores a delta from the original skb length in OVSCBskb-cutlen. When a later userspace action segments a GSO skb, queuegsopackets reuses that delta...

SUSE CVE-2026-64207

In the Linux kernel, the following vulnerability has been resolved: net/sched: dualpi2: fix GSO backlog accounting When DualPI2 splits a GSO skb into N segments, it propagates N additional packets to its parent before returning NETXMITSUCCESS. The parent then accounts for the original skb once...

CVE-2026-64207

In the Linux kernel, the following vulnerability has been resolved: net/sched: dualpi2: fix GSO backlog accounting When DualPI2 splits a GSO skb into N segments, it propagates N additional packets to its parent before returning NETXMITSUCCESS. The parent then accounts for the original skb once...

CVE-2026-64037

A flaw was found in the Linux kernel's iwlwifi MLD driver. When the Aggregated MAC Service Data Unit AMSDU feature is disabled, the driver incorrectly processes Transmit Segmentation Offload TSO requests. This can lead to a flood of micro-frames on the transmit ring, resulting in memory corruptio...