CVE-2026-53000

CVE-2026-53000 affects the Linux kernel netfilter NAT path. The root issue is partial exposure of nf_hook_ops during error handling, which can lead to unsafe access to internal hook data via the datapath and nat dispatcher flow. Exploitation details are not provided in the documents, but the desc...

CVE-2026-53000 netfilter: nat: use kfree_rcu to release ops

In the Linux kernel, the following vulnerability has been resolved: netfilter: nat: use kfreercu to release ops Florian Westphal says: "Historically this is not an issue, even for normal base hooks: the data path doesn't use the original nfhookops that are used to register the callbacks. However,...

CVE-2026-53000 netfilter: nat: use kfree_rcu to release ops

In the Linux kernel, the following vulnerability has been resolved: netfilter: nat: use kfreercu to release ops Florian Westphal says: "Historically this is not an issue, even for normal base hooks: the data path doesn't use the original nfhookops that are used to register the callbacks. However,...

CVE-2026-52988

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: join hook list via splicelistrcu in commit phase Publish new hooks in the list into the basechain/flowtable using splicelistrcu to ensure netlink dump list traversal via rcu is safe while concurrent ruleset...

CVE-2026-52988

The CVE-2026-52988 issue affects the Linux kernel netfilter nf_tables code, specifically the join hook list updated via splice_list_rcu() during commit phases. The vulnerability arises when new hooks are published to the basechain/flowtable while a concurrent ruleset update is ongoing, potentiall...

CVE-2026-52988 netfilter: nf_tables: join hook list via splice_list_rcu() in commit phase

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: join hook list via splicelistrcu in commit phase Publish new hooks in the list into the basechain/flowtable using splicelistrcu to ensure netlink dump list traversal via rcu is safe while concurrent ruleset...

CVE-2026-52978 net: psp: require admin permission for dev-set and key-rotate

In the Linux kernel, the following vulnerability has been resolved: net: psp: require admin permission for dev-set and key-rotate The dev-set and key-rotate netlink operations modify shared device state PSP version configuration and cryptographic key material, respectively but do not require...

CVE-2026-52978 net: psp: require admin permission for dev-set and key-rotate

In the Linux kernel, the following vulnerability has been resolved: net: psp: require admin permission for dev-set and key-rotate The dev-set and key-rotate netlink operations modify shared device state PSP version configuration and cryptographic key material, respectively but do not require...

CVE-2026-52978

The CVE-2026-52978 issue affects the Linux kernel PSP networking code. The netlink operations dev-set and key-rotate modify sensitive PSP state (version configuration and cryptographic keys) but did not require CAP_NET_ADMIN; access was only checked by psp_dev_check_access() for netns membership....

CVE-2026-52978

In the Linux kernel, the following vulnerability has been resolved: net: psp: require admin permission for dev-set and key-rotate The dev-set and key-rotate netlink operations modify shared device state PSP version configuration and cryptographic key material, respectively but do not require...

PT-2026-51907

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the macvlan module where the macvlan get size function fails to reserve space for the IFLA MACVLAN BC CUTOFF attribute. However, the macvlan fill info function...

PT-2026-51872

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The dev-set and key-rotate netlink operations allow the modification of shared device state, specifically the PSP version configuration and cryptographic key material. These operations...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: blk-mq: use quiesced elevator switch when reinitializing queues CVE-2022-50552 In the Linux kernel, the following vulnerability has been resolved: net: clear the dst when changing skb protocol CVE-2025-38192 In th...

Amazon Linux 2 : kernel, --advisory ALAS2-2026-3380 (ALAS-2026-3380)

The version of kernel installed on the remote host is prior to 4.14.355-284.735. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3380 advisory. In the Linux kernel, the following vulnerability has been resolved: rtnetlink: add missing netlinknscapable check for peer...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: rtnetlink: add missing netlinknscapable check for peer netns CVE-2026-31692 Affected Packages: kernel Note: This advisory is applicable to Amazon Linux 2 AL2 Core repository. Visit this FAQ section for the...

Astra Linux – Vulnerability in Linux

In the Linux kernel up to version 5.8.7, local attackers who were able to inject conntrack netlink configurations could exploit an overflow in a local buffer, resulting in crashes or triggering the use of incorrect protocol numbers in ctnetlinkparsetuplefilter in net/netfilter/nfconntracknetlink....

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: revisit gc autotuning As of commit 4608fdfc07e1, “netfilter: conntrack: collect all entries in one cycle” was changed, and the garbage collection of conntrack entries now occurs every 2 minutes. On systems...

Siemens RUGGEDCOM RST2428P Improper Input Validation (CVE-2025-40278)

In the Linux kernel, the following vulnerability has been resolved: net: sched: actife: initialize struct tcife to fix KMSAN kernel- infoleak Fix a KMSAN kernel-infoleak detected by the syzbot . net? KMSAN: kernel-infoleak in skbdatagramiter In tcfifedump, the variable 'opt' was partially...

kernel: netfilter: nf_tables: release flowtable after rcu grace period on error

A flaw was found in the Linux kernel's netfilter component, specifically within the nftables subsystem. An error in releasing a flowtable after an RCU Read-Copy-Update grace period could lead to a use-after-free vulnerability. This issue could expose the flowtable to the packet path and...

kernel: nbd: defer config unlock in nbd_genl_connect

In the Linux kernel, the following vulnerability has been resolved: nbd: defer config unlock in nbdgenlconnect There is one use-after-free warning when running NBDCMDCONNECT and NBDCLEARSOCK: nbdgenlconnect nbdallocandinitconfig // configrefs=1 nbdstartdevice // configrefs=2 set NBDRTHASCONFIGREF...