CLSA-2025-1738592614 kernel: Fix of 27 CVEs

xsk: fix OOB map writes when deleting elements CVE-2024-56614 - hvsock: Initializing vsk-trans to NULL to prevent a dangling pointer CVE-2024-53103 - scsi: sg: Fix slab-use-after-free read in sgrelease CVE-2024-56631 - net: inet: do not leave a dangling sk pointer in inetcreate CVE-2024-56601 -...

PT-2026-116766

In the Linux kernel, the following vulnerability has been resolved: af packet: fix integer overflow in prb calc retire blk tmo prb calc retire blk tmo computes in 32-bit int arithmetic: mbits = blk size in bytes 8 / 1024 1024; If I'm reading the validation right, tp block size is user controlled...

PT-2026-117021

In the Linux kernel, the following vulnerability has been resolved: seg6: ensure packet data is writable before modifying SRH and IPv6 DA advance nextseg modifies the SRH Segments Left field and the IPv6 destination address without ensuring the packet data is writable. seg6 next csid advance arg...

PT-2026-102354

Name of the Vulnerable Software and Affected Versions Zephyr OS affected versions not specified Description An out-of-bounds write can occur in the ieee802154 send function within subsys/net/l2/ieee802154/ieee802154.c. When CONFIG NET L2 IEEE802154 FRAGMENT is enabled and 6LoWPAN fragmentation is...

PT-2026-98758

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the af packet module where the tpacket parse header function incorrectly casts the user-provided tpacket hdr.tp len variable, which is a u32 unsigned 32-bit integer, t...

PT-2026-94411

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the virtio-net component where a user can specify an arbitrary gso size in a packet crafted with an AF PACKET PACKET VNET HDR socket. If the gso size is set to a value...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: net/packet: fixed a slab-out-of-bounds access in packetrecvmsg syzbot found that when an AFPACKET socket uses PACKETCOPYTHRESH and mmap operations, tpacketrcv queues skbs with garbage in skb-cb, causing an excessive copy...

Astra Linux – Vulnerability in Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: afpacket: fixed vlangetprotocoldgram vs MSGPEEK The responsible commit forgot to handle the MSGPEEK case, resulting in a crash 1, as detected by syzbot. vlangetprotocoldgram was rewritten so that it does not touch the skb at...

PT-2026-90881

In the Linux kernel, the following vulnerability has been resolved: af packet: Don't send zero-byte data in tpacket snd. syzbot reported a WARNING in dev queue xmit triggered via tpacket snd: skb assert len WARNING: at include/linux/skbuff.h:2753 skb assert len WARNING: at dev queue...

PT-2026-90885

In the Linux kernel, the following vulnerability has been resolved: net: remove WARN ON ONCE from sk mc loop sk mc loop can be called for sockets that are neither AF INET nor AF INET6 e.g. AF PACKET sockets when sending packets via raw/packet socket over virtual devices such as VRF or ipvlan. In...

PT-2026-72208

Name of the Vulnerable Software and Affected Versions Linux kernel version 6.0 Description An issue exists in the macsec encrypt function where the Ethernet header is read via eth hdrskb to move source and destination MAC bytes forward for SecTAG placement. On the AF PACKET SOCK RAW + PACKET QDIS...

Linux net/packet/af_packet Heap Buffer Overflow DoS

The vulnerability of the packetdobind function in the net/packet/afpacket.c module of the Linux operating system is related to the reutilization of previously freed memory due to concurrent access to resources. Exploiting this vulnerability could allow an attacker to compromise the confidentialit...

CVE-2026-53223

In the Linux kernel, the following vulnerability has been resolved: net: guard timestamp cmsgs to real error queue skbs skbiserrqueue treats PACKETOUTGOING as the sole marker for an skb from skerrorqueue. That assumption is not true for AFPACKET sockets: outgoing packet taps are also delivered to...

CVE-2026-53223

In the Linux kernel, the following vulnerability has been resolved: net: guard timestamp cmsgs to real error queue skbs skbiserrqueue treats PACKETOUTGOING as the sole marker for an skb from skerrorqueue. That assumption is not true for AFPACKET sockets: outgoing packet taps are also delivered to...

EUVD-2026-39314

In the Linux kernel, the following vulnerability has been resolved: net: guard timestamp cmsgs to real error queue skbs skbiserrqueue treats PACKETOUTGOING as the sole marker for an skb from skerrorqueue. That assumption is not true for AFPACKET sockets: outgoing packet taps are also delivered to...

CVE-2026-53223 net: guard timestamp cmsgs to real error queue skbs

In the Linux kernel, the following vulnerability has been resolved: net: guard timestamp cmsgs to real error queue skbs skbiserrqueue treats PACKETOUTGOING as the sole marker for an skb from skerrorqueue. That assumption is not true for AFPACKET sockets: outgoing packet taps are also delivered to...

CVE-2026-53223

In the Linux kernel, the following vulnerability has been resolved: net: guard timestamp cmsgs to real error queue skbs skbiserrqueue treats PACKETOUTGOING as the sole marker for an skb from skerrorqueue. That assumption is not true for AFPACKET sockets: outgoing packet taps are also delivered to...

CVE-2026-53223 net: guard timestamp cmsgs to real error queue skbs

In the Linux kernel, the following vulnerability has been resolved: net: guard timestamp cmsgs to real error queue skbs skbiserrqueue treats PACKETOUTGOING as the sole marker for an skb from skerrorqueue. That assumption is not true for AFPACKET sockets: outgoing packet taps are also delivered to...

CVE-2026-52942

In the Linux kernel, the following vulnerability has been resolved: netfilter: nflog: validate MAC header was set before dumping it The fallback path of dumpmacheader guards the MAC header access only with "skb-macheader != skb-networkheader", without checking skbmacheaderwasset. When the MAC...

UBUNTU-CVE-2026-52942

In the Linux kernel, the following vulnerability has been resolved: netfilter: nflog: validate MAC header was set before dumping it The fallback path of dumpmacheader guards the MAC header access only with "skb-macheader != skb-networkheader", without checking skbmacheaderwasset. When the MAC...