CVE-2026-89488

A flaw was found in the Linux kernel's Open vSwitch OVS component. An unprivileged user, operating from a user and network namespace, can trigger a use-after-free vulnerability during network namespace teardown. This occurs because packet processing attempts to use connection tracking CT limit...

CVE-2026-89527

A flaw was found in the Linux kernel's svcrdma module. This vulnerability occurs when a listener creation fails, leading to an improper release of a network namespace reference. This resource leak can be exploited by a local attacker, potentially causing a denial of service DoS by exhausting syst...

DEBIAN-CVE-2026-80983

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix socket refcount leak in smcswitchconns smcswitchconns takes a reference on the SMC socket before dropping lgr-connslock, so the connection stays alive while the CDC slot is fetched: sockhold&smc-sk;...

UBUNTU-CVE-2026-81003

In the Linux kernel, the following vulnerability has been resolved: net/iucv: filter frames in afiucvhsrcv by ingress device afiucvhsrcv selects a socket from iucvsklist by matching four 8-byte name fields in the transport header alone. No check is made against the netdevice the frame arrived on...

EUVD-2026-76306

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix socket refcount leak in smcswitchconns smcswitchconns takes a reference on the SMC socket before dropping lgr-connslock, so the connection stays alive while the CDC slot is fetched: sockhold&smc-sk;...

CVE-2026-80983: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix socket refcount leak in smcswitchconns smcswitchconns takes a reference on the SMC socket before dropping lgr-connslock, so the connection stays alive while the CDC slot is fetched: sockhold&smc-sk;...

kernel: tipc: fix slab-use-after-free Read in tipc_aead_decrypt_done

A flaw was found in the Linux kernel. A remote attacker could exploit a use-after-free vulnerability in the Transparent Inter-Process Communication TIPC cryptographic decryption process. This flaw occurs when a network namespace, a mechanism for isolating network resources, is deallocated before ...

kernel: tipc: fix slab-use-after-free Read in tipc_aead_decrypt_done

A flaw was found in the Linux kernel. A remote attacker could exploit a use-after-free vulnerability in the Transparent Inter-Process Communication TIPC cryptographic decryption process. This flaw occurs when a network namespace, a mechanism for isolating network resources, is deallocated before ...

kernel: ip6_gre: Use cached t->net in ip6erspan_changelink()

A flaw was found in the Linux kernel's ip6gre module. An unprivileged user could exploit this vulnerability by migrating a network device, causing the ip6erspanchangelink function to incorrectly handle network namespace references. This error leads to a use-after-free condition when the original...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053400)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053400 advisory. In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix use-after-free of network namespace. Recently, we got a customer report that CI...

CVE-2026-80866

In the Linux kernel, the following vulnerability has been resolved: tipc: avoid busy looping in tipcexitnet Blamed commit introduced a busy-wait loop in tipcexitnet to wait for pending UDP bearer cleanup works to complete: while atomicread&tn-wqcount condresched; This loop can busy-wait for a lon...

kernel: ip6_gre: Use cached t->net in ip6erspan_changelink()

A flaw was found in the Linux kernel's ip6gre module. An unprivileged user could exploit this vulnerability by migrating a network device, causing the ip6erspanchangelink function to incorrectly handle network namespace references. This error leads to a use-after-free condition when the original...

kernel: ip6_gre: Use cached t->net in ip6erspan_changelink()

A flaw was found in the Linux kernel's ip6gre module. An unprivileged user could exploit this vulnerability by migrating a network device, causing the ip6erspanchangelink function to incorrectly handle network namespace references. This error leads to a use-after-free condition when the original...

SUSE CVE-2026-72051

In the Linux kernel, the following vulnerability has been resolved: net: ip6tunnel: require CAPNETADMIN in the device netns for changelink ip6tnlchangelink operates on at most two netns, devnetdev and the tunnel link netns t-net. They differ once the device is created in or moved to a netns other...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098722)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098722 advisory. In the Linux kernel, the following vulnerability has been resolved: ip6vti: set netnsimmutable on the fallback device. john1988 and Noam Rathaus reported that...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098887)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098887 advisory. In the Linux kernel, the following vulnerability has been resolved: net: ipgre: require CAPNETADMIN in the device netns for changelink A tunnel changelink operates o...

CVE-2026-74718

A flaw was found in the devlink component of the Linux kernel. When the devlinknlreloaddoit function is called, it may fail to release a network namespace reference under specific error conditions. This oversight occurs when the requested network namespace differs from the current one and the...

CVE-2026-74670

A flaw was found in the Linux kernel's IP Virtual Server IPVS component. During the initial setup of the IPVS estimator, if the network namespace is removed, the estimator may continue operating with uninitialized limits. This can lead to an out-of-bounds write when processing network statistics,...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: fixed the out-of-bounds error in the netns ops registration error path. If the netassigngeneric function fails, the current error path in opsinit attempts to clear the gen pointer slot. However, during this error path, the g...

CVE-2026-74715

A flaw was found in the kernel. A reference imbalance vulnerability exists in the Berkeley Packet Filter BPF conntrack kfuncs. This occurs when the 'opts' argument, which can point to a shared map value, has its network namespace identifier netnsid read separately during reference acquisition and...