DirtyFrag-go

dirtyfrag-go Two bugs. One shell. No disk writes. Go port of dirtyfrag CVE-2026-43284 / CVE-2026-43500. How it works tl;dr The bug class is in the Linux kernel XFRM subsystem. When a file page is spliced into a pipe and then into an ESP-encrypted socket, the kernel decrypts the ESP payload in-pla...

Linux Kernel XFRM Subsystem Use-After-Free Local Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the xfrmdevstatedelete...

CVE-2026-80846

A flaw was found in the Linux kernel's xfrm subsystem, which handles ESP-in-TCP packets. When queued ESP-in-TCP data is processed after its ingress network device has been removed, the system attempts to dereference a null pointer. This can lead to a system crash, resulting in a Denial of Service...

CVE-2026-92489

A flaw was found in the Linux kernel's xfrm subsystem. This vulnerability occurs in the xfrmdevdirectoutput function due to incorrect handling of network packet buffer skb ownership. When netfilter drops a packet, the skb can be freed twice, leading to a double-free condition. This memory...

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-2026-98372

A flaw was found in the Linux kernel's IP Traffic Flow Security IP-TFS implementation within the XFRM subsystem. When processing incoming network traffic, a missing boundary check on packet fragment offsets allows an unbounded loop to read memory past the end of an on-stack array. A remote attack...

Ubuntu 24.04 LTS / 26.04 LTS : Linux kernel vulnerabilities (USN-8816-1)

The remote Ubuntu 24.04 LTS / 26.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8816-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update...

kernel: xfrm: ah6: validate routing header segments_left

A flaw was found in the Linux kernel's xfrm subsystem, specifically within the AH6 Authentication Header for IPv6 module. The ipv6rearrangerthdr function does not properly validate the segmentsleft field in routing headers when processing raw IPv6 HDRINCL packets. This oversight allows an attacke...

kernel: xfrm: ah6: validate routing header segments_left

A flaw was found in the Linux kernel's xfrm subsystem, specifically within the AH6 Authentication Header for IPv6 module. The ipv6rearrangerthdr function does not properly validate the segmentsleft field in routing headers when processing raw IPv6 HDRINCL packets. This oversight allows an attacke...

AZL-99564 CVE-2026-80848 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: xfrm: espintcp: fix UAF during close ZDI reported and analyzed a race condition during close for espintcp sockets: espintcpclose frees emsg-skb via kfreeskb without holding any socket lock. Concurrently, the xfrmtransreinject wor...

PT-2026-85721

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the xfrm module where the xfrm state construct function can cause a memory leak. This occurs when attach auth trunc allocates x-aalg but leaves x-props.aalgo at zero,...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098800)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098800 advisory. In the Linux kernel, the following vulnerability has been resolved: xfrm: hold dev ref until after transportfinish NFHOOK After async crypto completes, xfrminputresu...

kernel: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete

A flaw was found in the Linux kernel's xfrm IPSec framework subsystem. This vulnerability, a use-after-free, occurs when the system incorrectly manages memory related to security policies, specifically during the deletion of xfrmstate lists. An attacker with local access could exploit this flaw b...

kernel: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete

A flaw was found in the Linux kernel's xfrm IPSec framework subsystem. This vulnerability, a use-after-free, occurs when the system incorrectly manages memory related to security policies, specifically during the deletion of xfrmstate lists. An attacker with local access could exploit this flaw b...

kernel: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete

A flaw was found in the Linux kernel's xfrm IPSec framework subsystem. This vulnerability, a use-after-free, occurs when the system incorrectly manages memory related to security policies, specifically during the deletion of xfrmstate lists. An attacker with local access could exploit this flaw b...

CVE-2026-72463

A flaw was found in the Linux kernel's xfrm IP eXtensible FRamework for IPsec subsystem. This vulnerability occurs during asynchronous resumption where the xfrmrcvcb function can modify a network device without properly managing its reference count. This improper handling leads to a use-after-fre...

CVE-2026-72450

A flaw was found in the Linux kernel's xfrm subsystem. This vulnerability, a shift-out-of-bounds error, occurs when an unspecified address family AFUNSPEC selector with a large prefix length is incorrectly matched against an IPv4 flow. An attacker could potentially exploit this by sending special...

CVE-2026-72137

A flaw was found in the xfrm subsystem of the Linux kernel, specifically within the natkeepalive component. This vulnerability occurs when the natkeepalivesend function attempts to free a network packet buffer skb that may have already been freed by the networking stack. This double free can lead...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-101968)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-101968 advisory. In the Linux kernel, the following vulnerability has been resolved: net: afkey: initialize algkeylen for IPComp states pfkeymsg2xfrmstate handles the IPComp...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-102129)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-102129 advisory. In the Linux kernel, the following vulnerability has been resolved: xfrm: clear trailing padding in buildpolexpire buildexpire clears the trailing padding bytes of...