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...

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...

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

In the Linux kernel, the following vulnerability has been resolved: xfrm: fix xfrm state construct auth-trunc leak attach auth trunc can allocate x-aalg while leaving x-props.aalgo at zero when the selected auth algorithm has no sadb alg id. One real case is cmacaes. xfrm state construct then...

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-2026-102129)

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...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-72450

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xfrm: validate selector family and prefixlen during match syzbot reported a shift-out-of-bounds in xfrmselectormatch due to AFUNSPEC selector with large prefixl...

Linux Distros Unpatched Vulnerability : CVE-2026-72137

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: xfrm: natkeepalive: avoid double free on send error natkeepalivesend frees the keepalive skb...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100497)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100497 advisory. In the Linux kernel, the following vulnerability has been resolved: net: afkey: initialize algkeylen for IPComp states pfkeymsg2xfrmstate handles the IPComp...