EUVD-2025-201157

In the Linux kernel, the following vulnerability has been resolved: xfrm: delete x-tunnel as we delete x The ipcomp fallback tunnels currently get deleted from the various lists and hashtables as the last user state that needed that fallback is destroyed not deleted. If a reference to that user...

kernel: RDMA/core: Don't expose hw_counters outside of init net namespace

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Don't expose hwcounters outside of init net namespace Commit 467f432a521a "RDMA/core: Split port and device counter sysfs attributes" accidentally almost exposed hw counters to non-init net namespaces. It didn't expose...

CLSA-2025-1762332910 kernel: Fix of 5 CVEs

ext4: fix possible UAF when remounting r/o a mmp-protected file system CVE-2021-47342 - ext4: fix memory leak in ext4fillsuper - net: defer final 'struct net' free in netns dismantle CVE-2024-56658 - net/sched: schqfq: Fix race condition on qfqaggregate CVE-2025-38477 - ALSA: usb-audio: Fix an...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990233)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990233 advisory. In the Linux kernel, the following vulnerability has been resolved: net: fix UaF in netns ops registration error path If netassigngeneric fails, the current error pa...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988896)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988896 advisory. In the Linux kernel, the following vulnerability has been resolved: devlink: fix netns refcount leak in devlinknlcmdreload While preparing my patch series adding net...

CLSA-2025-1762244848 kernel: Fix of 5 CVEs

ext4: fix possible UAF when remounting r/o a mmp-protected file system CVE-2021-47342 - ext4: fix memory leak in ext4fillsuper - net: defer final 'struct net' free in netns dismantle CVE-2024-56658 - net/sched: schqfq: Fix race condition on qfqaggregate CVE-2025-38477 - ALSA: usb-audio: Fix an...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: In net:tIPC, there is a fix for the refcount warning in tipcaeadencrypt. The syzbot report identified a refcount warning 1 caused by calling getnet on a network namespace that is being destroyed refcount=0. This occurs when a TIP...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ax25: The unshare skbs operation was performed correctly in ax25kissrcv. Bernard Pidoux reported a regression that appeared to be caused by the commit c353e8983e0d “net: introduce per netns packet chains”. This commit introduced ...

Siemens SIMATIC Devices Improper Initialization (CVE-2024-35910)

In the Linux kernel, the following vulnerability has been resolved: tcp: properly terminate timers for kernel sockets We had various syzbot reports about tcp timers firing after the corresponding netns has been dismantled. Fortunately Josef Bacik could trigger the issue more often, and could test...

Siemens SIMATIC Devices NULL Pointer Dereference (CVE-2025-21640)

In the Linux kernel, the following vulnerability has been resolved: sctp: sysctl: cookiehmacalg: avoid using current-nsproxy As mentioned in a previous commit of this series, using the 'net' structure via 'current' is not recommended for different reasons: - Inconsistency: getting info from the...

Siemens SIMATIC Devices Out-of-bounds Write (CVE-2025-21865)

gtp: Suppress list corruption splat in gtpnetexitbatchrtnl. Commit eb28fd76c0a0 gtp: Destroy device along with udp socket's netns dismantle. added the foreachnetdev loop in gtpnetexitbatchrtnl to destroy devices in each netns as done in geneve and ip tunnels. However, this could trigger -dellink...

Siemens SIMATIC, SCALANCE and RUGGEDCOM Devices Use After Free (CVE-2024-40958)

netns: Make getnetns handle zero refcount net Syzkaller hit a warning: refcountt: addition on 0; use-after-free. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if...

Linux Distros Unpatched Vulnerability : CVE-2025-40018

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ipvs: Defer ipvsftp unregister during netns cleanup On the netns cleanup path, ipvsftpexit may unregister ipvsftp before connections with valid cp-app pointers...

ipvs: Defer ip_vs_ftp unregister during netns cleanup

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EUVD-2025-35832

In the Linux kernel, the following vulnerability has been resolved: ipvs: Defer ipvsftp unregister during netns cleanup On the netns cleanup path, ipvsftpexit may unregister ipvsftp before connections with valid cp-app pointers are flushed, leading to a use-after-free. Fix this by introducing a...

AZL-68769 CVE-2025-40018 affecting package kernel for versions less than 6.6.112.1-2

In the Linux kernel, the following vulnerability has been resolved: ipvs: Defer ipvsftp unregister during netns cleanup On the netns cleanup path, ipvsftpexit may unregister ipvsftp before connections with valid cp-app pointers are flushed, leading to a use-after-free. Fix this by introducing a...

CVE-2025-40018

In the Linux kernel, the following vulnerability has been resolved: ipvs: Defer ipvsftp unregister during netns cleanup On the netns cleanup path, ipvsftpexit may unregister ipvsftp before connections with valid cp-app pointers are flushed, leading to a use-after-free. Fix this by introducing a...

CVE-2025-40018

In the Linux kernel, the following vulnerability has been resolved: ipvs: Defer ipvsftp unregister during netns cleanup On the netns cleanup path, ipvsftpexit may unregister ipvsftp before connections with valid cp-app pointers are flushed, leading to a use-after-free. Fix this by introducing a...

CVE-2025-40018 ipvs: Defer ip_vs_ftp unregister during netns cleanup

In the Linux kernel, the following vulnerability has been resolved: ipvs: Defer ipvsftp unregister during netns cleanup On the netns cleanup path, ipvsftpexit may unregister ipvsftp before connections with valid cp-app pointers are flushed, leading to a use-after-free. Fix this by introducing a...

CVE-2025-40018

CVE-2025-40018 affects the Linux kernel IP Virtual Server (ipvs) code. On netns cleanup, __ip_vs_ftp_exit() may unregister ip_vs_ftp before flushing connections with valid cp->app pointers, causing a use-after-free. The fix introduces a global exiting_module flag, set during ip_vs_ftp_exit() b...