kernel: ipv6: use RCU in ip6_xmit()

A use-after-free flaw was found in ip6autoflowlabel in the Linux kernel's net/ipv6/ip6output.c code. In this flaw an attacker can cause a denial of service DoS attack...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fixed a socket memory leak in the handling of TCP-AO failures for IPv6. When tcpaocopyallmatching fails in tcpv6synrecvsock, the function simply exits. This results in a memory leak: unreferenced object 0xffff0000281a820...

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

In the Linux kernel, the following vulnerability has been resolved: In the net subsystem, hsr: rejecting HSR frames if skb cannot hold the tag. Receiving an HSR frame with insufficient space to hold the HSR tag in the skb can result in a crash kernel BUG. 45.390915 skbuff: skbunderpanic:...

CVE-2026-10636

In Zephyr's IPv4 IGMP implementation, igmpsend in subsys/net/ip/igmp.c read the network interface back out of the packet via netpktifacepkt after the packet had been handed to netsenddata. On the successful-send path the packet's last reference may already have been released by the L2 driver or b...

CVE-2026-10638 Use-after-free in Zephyr ICMPv6 RX path when updating statistics after sending an echo reply or error

subsys/net/ip/icmpv6.c reads the network interface from a netpkt after that packet has been handed to nettrysenddata. In icmpv6handleechorequest and neticmpv6senderror, the post-send statistics update calls netpktifacereply/netpktifacepkt on the just-sent packet. The send path nettrysenddata -...

EUVD-2026-36727

Zephyr's native TCP stack iterates the global connection list in nettcpforeach subsys/net/ip/tcp.c using the SYSSLISTFOREACHCONTAINERSAFE macro, which caches a pointer to the next list node. Prior to this fix the function released tcplock while invoking the per-connection callback and re-acquired...

Exploit for Improper Restriction of Operations within the Bounds of a Memory Buffer in Treck Tcp\/Ip

No d...

SUSE CVE-2026-46330

In the Linux kernel, the following vulnerability has been resolved: Revert "net/smc: Introduce TCP ULP support" This reverts commit d7cd421da9da2cc7b4d25b8537f66db5c8331c40. As reported by Al Viro, the TCP ULP support for SMC is fundamentally broken. The implementation attempts to convert an acti...

CVE-2026-42904

Heap-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to elevate privileges over an adjacent network...

CVE-2026-42904 Windows TCP/IP Elevation of Privilege Vulnerability

...

EUVD-2026-35593

Heap-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to elevate privileges over an adjacent network...

PT-2026-47883

Name of the Vulnerable Software and Affected Versions Windows TCP/IP affected versions not specified Description A heap-based buffer overflow in the Windows TCP/IP stack allows an unauthorized attacker located on an adjacent network to elevate privileges to SYSTEM level. A heap-based buffer...

kernel: ipv6: use RCU in ip6_xmit()

A use-after-free flaw was found in ip6autoflowlabel in the Linux kernel's net/ipv6/ip6output.c code. In this flaw an attacker can cause a denial of service DoS attack...

EUVD-2026-34138

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 support segmentation offload when the MSS is less than 224 bytes. Attempting to send such packets causes the adapter to freeze, stoppi...

EUVD-2026-34122

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix out-of-bound access in fib6addrt2node. syzbot reported out-of-bound read in fib6addrt2node. 0 When IPv6 route is created with RTANHID, struct fib6info does not have the trailing struct fib6nh. The cited commit started t...

PT-2026-46036

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description Certain physical adapters on Power systems fail to support segmentation offload when the Maximum Segment Size MSS is less than 224 bytes. When the hardware attempts to perform segmentati...

SUSE-SU-2026:21845-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2023-2058: x86/CPU: Fix FPDSS on Zen1 bsc1243603. - CVE-2024-14027: xattr: switch to CLASSfd bsc1259420. - CVE-2025-40181: x86/kvm: Force legacy PCI hole to UC when...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: The comparison of MACs is now performed at constant time. To prevent timing attacks, MACs need to be compared at constant time. Use the appropriate helper functions for this purpose...

CLSA-2026-1778783464 Update of kernel

net: skbuff: propagate shared-frag marker through pskbcopy...

EUVD-2026-29671

Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over an adjacent network...