EUVD-2026-55548

In the Linux kernel, the following vulnerability has been resolved: sctp: avoid authenable sysctl UAF during netns teardown procsctpdoauth updates the SCTP control socket after changing net.sctp.authenable. The handler gets the per-net SCTP state from ctl-data, so an already opened sysctl file ca...

CVE-2026-68162

CVE-2026-68162 is a Linux kernel SCTP vulnerability (local) where a Use-After-Free can occur during netns teardown due to an auth_enable sysctl window. The bug stems from SCTP’s per-net sysctl state being registered before the control socket is fully established and remaining writable after inet_...

CVE-2026-68161

Summary of CVE-2026-68161 : In the Linux kernel, SCTP UDP tunnel sockets created per-net SCTP UDP port (net.sctp.udp_port) are not stopped when a network namespace (netns) is torn down, potentially leaving sockets installed during teardown. The root cause is that the netns exit path does not stop...

CVE-2026-68161 sctp: close UDP tunnel sockets during netns teardown

In the Linux kernel, the following vulnerability has been resolved: sctp: close UDP tunnel sockets during netns teardown procsctpdoudpport starts per-net SCTP UDP tunneling sockets when net.sctp.udpport is set, and stops/restarts them when the sysctl value changes. The netns exit path does not st...

EUVD-2026-55538

In the Linux kernel, the following vulnerability has been resolved: amt: fix use-after-free in AMT delayed works When an AMT device is removed, pending delayed works can still access the freed amtdev structure, which may result in kernel crashes or memory corruption. amtdevstop cancels reqwq and...

CVE-2026-68143 net: slip: serialize receive against buffer reallocation

In the Linux kernel, the following vulnerability has been resolved: net: slip: serialize receive against buffer reallocation slreallocbufs replaces rbuff and updates buffsize while holding sl-lock. slipreceivebuf reads those fields and writes through rbuff without holding the lock. An MTU change...

CVE-2026-68142 geneve: require CAP_NET_ADMIN in the device netns for changelink

In the Linux kernel, the following vulnerability has been resolved: geneve: require CAPNETADMIN in the device netns for changelink A tunnel changelink operates on at most two netns, devnetdev and the sticky underlay netns geneve-net. They differ once the device is created in or moved to a netns...

CVE-2026-68142

The CVE concerns the Linux kernel geneve driver. A local attacker with CAP_NET_ADMIN in one network namespace can bypass permission checks and modify a geneve network device in a different namespace, potentially enabling unauthorized network configuration changes or disruption. The fix gates the ...

EUVD-2026-55522

In the Linux kernel, the following vulnerability has been resolved: net/iucv: fix use-after-free of a severed iucvpath afiucv queues not-yet-received message notifications on iucv-messageq, each holding a raw pointer to the connection's iucvpath. When the peer severs the connection, iucvseverpath...

CVE-2026-68137

The CVE-2026-68137 issue is a Linux kernel use-after-free in the X.25 networking code (x25_kill_by_neigh). The vulnerability arises when the kernel walks the global X.25 socket list without guaranteeing socket lifetime after dropping x25_list_lock, allowing a concurrent close to remove a socket a...

CVE-2026-68136 net: gro: fix double aggregation of flush-marked skbs

In the Linux kernel, the following vulnerability has been resolved: net: gro: fix double aggregation of flush-marked skbs Commit 0ab03f353d36 "net-gro: Fix GRO flush when receiving a GSO packet." added a flush check to skbgroreceive, but skbgroreceivelist lacks the same validation. As a result,...

EUVD-2026-55511

In the Linux kernel, the following vulnerability has been resolved: ksmbd: defer destroyprevioussession until after NTLM authentication In ntlmauthenticate, destroyprevioussession is called using a user pointer resolved from the client-supplied NTLM blob username field before the NTLMv2 response ...

EUVD-2026-55499

In the Linux kernel, the following vulnerability has been resolved: tcp: challenge ACK for non-exact RST in SYN-RECEIVED The SYN-RECEIVED request-socket path in tcpcheckreq accepts an in-window RST without requiring SEG.SEQ to exactly match RCV.NXT. A non-exact RST therefore removes the request...

K000162854: Linux Kernel vulnerability CVE-2026-53080

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: net/sched: clsfw: fix NULL dereference of "old" filters before change Like pointed out by Sashiko 1, since commit ed76f5edccc9 "net: sched: protect filterchain list with filterchainlock mutex" TC...

Important: Red Hat Security Advisory: osbuild-composer security update

An update for osbuild-composer is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability...

Linux Distros Unpatched Vulnerability : CVE-2026-68141

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/afiucv: fix NULL deref in afiucvhscallbacksyn afiucvhscallbacksyn allocates the child socket with GFPATOMIC. If the allocation fails, nsk is NULL. The...

PT-2026-69693

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A buffer overflow exists in the net/mlx5 component. When a device advertises the mcia 32dwords capability, the MCIA register can return up to 32 dwords 128 bytes. However, the mlx5 ifc...

CVE-2026-8718: Out-of-bounds Write

tlsoptdtlspeerconnectionidvalueget in subsys/net/lib/sockets/socketstls.c, which handles getsockoptSOLTLS, TLSDTLSPEERCIDVALUE, passed the caller-supplied optval directly to mbedtlssslgetpeercid without verifying the buffer was at least MBEDTLSSSLCIDOUTLENMAX default 32 bytes. mbedtlssslgetpeerci...

MiracleLinux 8 : ruby:3.3 (AXSA:2026-1503:01)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1503:01 advisory. zlib: zlib: Memory corruption via buffer overflow in Zlib::GzipReader CVE-2026-27820 net-imap: Net::IMAP: Arbitrary IMAP command injection via CRLF...

RHEL 8 : osbuild-composer (RHSA-2026:52389)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:52389 advisory. A service for building customized OS artifacts, such as VM images and OSTree commits, that uses osbuild under the hood. Besides building images for...