EUVD-2023-60441

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: always release netdev hooks from notifier This reverts "netfilter: nftables: skip netdev events generated on netns removal". The problem is that when a veth device is released, the veth release callback will...

CVE-2023-54276 nfsd: move init of percpu reply_cache_stats counters back to nfsd_init_net

In the Linux kernel, the following vulnerability has been resolved: nfsd: move init of percpu replycachestats counters back to nfsdinitnet Commit f5f9d4a314da "nfsd: move reply cache initialization into nfsd startup" moved the initialization of the reply cache into nfsd startup, but didn't accoun...

CVE-2023-54200

The CVE-2023-54200 issue affects the Linux kernel netfilter nf_tables hooks for netdev: they are now always released from the notifier, reverting a previous change that skipped netdev events on netns removal. The bug can cause a use-after-free in nf_hook_entry_head (KASAN) when a veth release que...

PT-2025-54029

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel's netfilter component, specifically within the nf tables subsystem. The issue involves the improper handling of network device netdev hooks during netwo...

CVE-2022-50655 ppp: associate skb with a device at tx

In the Linux kernel, the following vulnerability has been resolved: ppp: associate skb with a device at tx Syzkaller triggered flow dissector warning with the following: r0 = openat$ppp0xffffffffffffff9c, &0x7f0000000000, 0xc0802, 0x0 ioctl$PPPIOCNEWUNITr0, 0xc004743e, &0x7f00000000c0...

PT-2025-49635

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw related to PPP Point-to-Point Protocol transmission. Specifically, the issue arises when associating an skb socket buffer with a device during...

PT-2026-2500

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel related to network packet fragmentation and conntrack. Specifically, the issue involves pending SKBs socket buffers holding conntrack references during...

CVE-2025-40215

No description is available for this CVE...

SUSE CVE-2025-40215

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...

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-2025-988896)

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...

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...

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, 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...

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...