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

CVE-2026-53223 (Linux kernel) : A networking timestamping bug in net: guard timestamp cmsgs to real error queue skbs where skb_is_err_queue() incorrectly treated PACKET_OUTGOING as the sole marker for sk_error_queue. This misclassification affects AF_PACKET sockets, allowing timestamp-related con...

CVE-2023-54004

In the Linux kernel, the following vulnerability has been resolved: udplite: Fix NULL pointer dereference in skmemraiseallocated. syzbot reported 0 a null-ptr-deref in skgetrmem0 while using IPPROTOUDPLITE 0x88: 14:25:52 executing program 1: r0 = socket$inet60xa, 0x80002, 0x88 We had a similar...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: netlink: avoided infinite retry loops in netlinkunicast The netlinkattachskb function checks the read memory allocation constraints of the socket. First, it checks whether the newly increased rmem value fits within the socket’...

UBUNTU-CVE-2025-38727

In the Linux kernel, the following vulnerability has been resolved: netlink: avoid infinite retry looping in netlinkunicast netlinkattachskb checks for the socket's read memory allocation constraints. Firstly, it has: rmem skrcvbuf to check if the just increased rmem value fits into the socket's...

kernel: udp: Fix memory accounting leak.

A memory overflow vulnerability exists within the Linux kernel's networking subsystem. Specifically, an application can set the SORCVBUF socket option to its maximum value INTMAX, which triggers an integer overflow within the udprmemrelease function during socket closure. The udpdestructcommon...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: UDP: Fixed memory accounting leak. Matt Dowling reported a strange UDP memory usage issue. Under normal operation, the UDP memory usage reported in /proc/net/sockstat remains close to zero. However, it occasionally spikes to...

DEBIAN-CVE-2025-22058

In the Linux kernel, the following vulnerability has been resolved: udp: Fix memory accounting leak. Matt Dowling reported a weird UDP memory usage issue. Under normal operation, the UDP memory usage reported in /proc/net/sockstat remains close to zero. However, it occasionally spiked to 524,288...

UBUNTU-CVE-2025-22059

In the Linux kernel, the following vulnerability has been resolved: udp: Fix multiple wraparounds of sk-skrmemalloc. udpenqueuescheduleskb has the following condition: if atomicread&sk-skrmemalloc sk-skrcvbuf goto drop; sk-skrcvbuf is initialised by net.core.rmemdefault and later can be configure...