CVE-2026-98241

A flaw was found in the Linux kernel's IPv6 IPsec XFRM networking framework. When handling TCP connection handshakes routed through an IPsec tunnel with a reduced Maximum Transmission Unit MTU, the kernel's local error-handling path incorrectly treats incomplete connection request sockets as full...

CVE-2026-98231

A flaw was found in the Linux kernel's IPsec XFRM subsystem. A race condition between device state flushing and background memory cleanup allows kernel memory to be accessed after it has already been freed. A local attacker could exploit this flaw during network device state changes to cause a...

CVE-2026-98364

A flaw was found in the Linux kernel's IPsec XFRM networking subsystem. A race condition occurs when creating policy bundles while a network device is concurrently removed, leading to a use-after-free condition where the kernel accesses already-freed device memory. A local attacker can exploit th...

CVE-2026-52935

In the Linux kernel, the following vulnerability has been resolved: xfrm: espintcp: do not reuse an in-progress partial send espintcp keeps a single in-flight transmit in ctx-partial. Before building a new skmsg, espintcpsendmsg first tries to flush that state through espintcppushmsgs. For blocki...

USN-7808-2 linux-azure-6.8 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Network drivers; - Ext4 file system; - SMB network file system; - Packet sockets; - Network traffic control; - TLS...

Kernel: ipsec: xfrm: use-after-free leading to potential privilege escalation

The Linux kernel is vulerable to a use-after-free flaw when Transformation User configuration interfaceCONFIGXFRMUSER compile-time configuration were enabled. This vulnerability occurs while closing a xfrm netlink socket in xfrmdumppolicydone. A user/process could abuse this flaw to potentially...