Ubuntu 26.04 LTS : Linux kernel vulnerabilities (USN-8370-1)

The remote Ubuntu 26.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8370-1 advisory. It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. ...

USN-8373-1 linux, linux-aws, linux-aws-6.8, linux-aws-fips, linux-azure, linux-fips, linux-gcp, linux-gcp-6.8, linux-gcp-fips, linux-gke, linux-gkeop, linux-hwe-6.8, linux-ibm, linux-ibm-6.8, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, linux-nvidia-tegra, linux-oracle, linux-oracle-6.8, linux-raspi, linux-raspi-realtime, linux-realtime, linux-realtime-6.8 vulnerabilities

It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processing paged fragments. A local attacker...

[slackware-security] kernel

New kernel packages are available for Slackware 15.0 and -current to fix security issues. Here are the details from the Slackware 15.0 ChangeLog: patches/packages/linux-5.15.209/kernel-generic-5.15.209-i586-1.txz: Upgraded. This update fixes security issues: rxrpc: Fix missing validation of ticke...

Unbreakable Enterprise kernel security update

6.12.0-203.76.7.1 - smb: client: reject userspace cifs.spnego descriptions Asim Viladi Oglu Manizada Orabug: 39474418 6.12.0-203.76.7 - tun: free page on buildskb failure in tunxdpone Weiming Shi Orabug: 39456024 - tap: free page on error paths in tapgetuserxdp Weiming Shi Orabug: 39456024 - tun:...

rxrpc: Fix potential UAF after skb_unshare() failure

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rxrpc: Fix re-decryption of RESPONSE packets

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SUSE CVE-2026-45998

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix potential UAF after skbunshare failure If skbunshare fails to unshare a packet due to allocation failure in rxrpcinputpacket, the skb pointer in the parent rxrpciothread will be NULL'd out. This will likely cause the...

Linux Distros Unpatched Vulnerability : CVE-2026-45998

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: rxrpc: Fix potential UAF after skbunshare failure If skbunshare fails to unshare a packet du...

CVE-2026-45988

A flaw was found in the Linux kernel's rxrpc subsystem. When an rxrpc RESPONSE packet experiences a temporary processing failure, it may enter a partially decrypted state and be re-queued for another attempt. This incorrect handling of partially decrypted packets could lead to communication...

CVE-2026-45998

A flaw was found in the Linux kernel's rxrpc subsystem. This vulnerability arises when the system attempts to unshare a packet buffer, and the operation fails due to an allocation issue. This failure can lead to a Use-After-Free UAF condition, where the system attempts to access memory that has...

CVE-2026-46000

A flaw was found in the Linux kernel's rxrpc component. Security operations that decrypt RESPONSE packets in place may share the socket buffer skbuff with a packet sniffer. This could allow a local attacker or an attacker with network access to intercept and view decrypted portions of these...

CVE-2026-46085

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix rxkad crypto unalignment handling Fix handling of a packet with a misaligned crypto length. Also handle non-ENOMEM errors from decryption by aborting. Further, remove the WARNONONCE so that it can't be remotely trigger...

CVE-2026-46010

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix error handling in rxgkextracttoken Fix a missing bit of error handling in rxgkextracttoken: in the event that rxgkdecryptskb returns -ENOMEM, it should just return that rather than continuing on for anything else, it...

CVE-2026-46000

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix conn-level packet handling to unshare RESPONSE packets The security operations that verify the RESPONSE packets decrypt bits of it in place - however, the skbuff may be shared with a packet sniffer, which would lead to...

EUVD-2026-32468

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix rxkad crypto unalignment handling Fix handling of a packet with a misaligned crypto length. Also handle non-ENOMEM errors from decryption by aborting. Further, remove the WARNONONCE so that it can't be remotely trigger...

CVE-2026-46085

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix rxkad crypto unalignment handling Fix handling of a packet with a misaligned crypto length. Also handle non-ENOMEM errors from decryption by aborting. Further, remove the WARNONONCE so that it can't be remotely trigger...

CVE-2026-46085

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix rxkad crypto unalignment handling Fix handling of a packet with a misaligned crypto length. Also handle non-ENOMEM errors from decryption by aborting. Further, remove the WARNONONCE so that it can't be remotely trigger...

CVE-2026-46012 rxrpc: Fix memory leaks in rxkad_verify_response()

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix memory leaks in rxkadverifyresponse Fix rxkadverifyresponse to free the ticket and the server key under all circumstances by initialising the ticket pointer to NULL and then making all paths through the function after...

EUVD-2026-32309

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix memory leaks in rxkadverifyresponse Fix rxkadverifyresponse to free the ticket and the server key under all circumstances by initialising the ticket pointer to NULL and then making all paths through the function after...

CVE-2026-46012

CVE-2026-46012 is a Linux kernel issue in the rxrpc path (rxkad_verify_response) that leaks memory by failing to free the ticket and server key on all paths. The root cause is improper teardown in rxkad_verify_response, fixed by initializing the ticket pointer to NULL and routing all code paths t...