CVE-2026-46319

A flaw was found in the Linux kernel. A race condition in the actct module, specifically during the flow table lookup, can lead to a Use-After-Free UAF vulnerability. This occurs because a critical lock is released prematurely, allowing a memory object to be freed while still in use. An attacker...

EUVD-2026-35409

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: Only release RCU read lock after ctft When looking up a flow table in actct in tcfctflowtableget, rhashtablelookupfast internally opens and closes an RCU read critical section before returning ctft. The...

CVE-2026-46319

The CVE-2026-46319 entry describes a race in the Linux kernel net/sched act_ct where rcu_read_lock is exited before refcount_inc_not_zero on ct_ft, allowing a UAF when ct_ft is freed during cleanup. This creates a local privilege-escalation risk as an attacker could observe or trigger the race wi...

Unbreakable Enterprise kernel security update

5.15.0-320.202.8.3 - nfsd: fix heap overflow in NFSv4.0 LOCK replay cache Jeff Layton Orabug: 39362036 CVE-2026-31402 - net/sched: Only allow actct to bind to clsact/ingress qdiscs and shared blocks Victor Nogueira Orabug: 39362005 CVE-2026-23270 - KVM: x86: disable preemption around the call to...

AlmaLinux 9 : kernel (ALSA-2026:13565)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:13565 advisory. kernel: Linux kernel: Denial of Service in libceph OSD client due to unreset sparse-read state CVE-2026-23136 kernel: Linux kernel: Use-after-free in...

DEBIAN-CVE-2026-23270

In the Linux kernel, the following vulnerability has been resolved: net/sched: Only allow actct to bind to clsact/ingress qdiscs and shared blocks As Paolo said earlier 1: "Since the blamed commit below, classify can return TCACTCONSUMED while the current skb being held by the defragmentation...

CVE-2026-23270

In the Linux kernel, the following vulnerability has been resolved: net/sched: Only allow actct to bind to clsact/ingress qdiscs and shared blocks As Paolo said earlier 1: "Since the blamed commit below, classify can return TCACTCONSUMED while the current skb being held by the defragmentation...

CVE-2026-23270 net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks

In the Linux kernel, the following vulnerability has been resolved: net/sched: Only allow actct to bind to clsact/ingress qdiscs and shared blocks As Paolo said earlier 1: "Since the blamed commit below, classify can return TCACTCONSUMED while the current skb being held by the defragmentation...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from insufficient restrictions on actct bindings. This vulnerability could lead to reusing after relea...

The vulnerability of the tcf_ct_handle_fragments() function in the net/sched/act_ct.c module of the net/sched/networking subsystem of the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the tcfcthandlefragments function in the net/sched/actct.c module of the net/sched/networking subsystem of the Linux operating system is related to insufficient checking of exceptional states. Exploiting this vulnerability could allow an attacker to compromise the...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from the actct module not releasing old ct entry references when switching region or network namespaces, which could...

Oracle Linux 9 : kernel (ELSA-2024-8162)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-8162 advisory. - gfs2: Fix NULL pointer dereference in gfs2logflush CKI Backport Bot RHEL-51561 RHEL-51559 CVE-2024-42079 - KVM: SVM: WARN on vNMI + NMI window iff NM...

SUSE-SU-2024:3569-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP5 kernel was updated to receive various security bugfixes. The following security bugs were fixed: - CVE-2022-48901: btrfs: do not start relocation until in progress drops are done bsc1229607. - CVE-2022-48911: kabi: add nfqueuegetrefs for kabi compliance. bsc122963...

CVE-2024-42272

In the Linux kernel, the following vulnerability has been resolved: sched: actct: take care of padding in struct zoneshtkey Blamed commit increased lookup key size from 2 bytes to 16 bytes, because zoneshtkey got a struct net pointer. Make sure rhashtablelookup is not using the padding bytes whic...

CVE-2024-42272

In the Linux kernel, the following vulnerability has been resolved: sched: actct: take care of padding in struct zoneshtkey Blamed commit increased lookup key size from 2 bytes to 16 bytes, because zoneshtkey got a struct net pointer. Make sure rhashtablelookup is not using the padding bytes whic...

DEBIAN-CVE-2024-42272

In the Linux kernel, the following vulnerability has been resolved: sched: actct: take care of padding in struct zoneshtkey Blamed commit increased lookup key size from 2 bytes to 16 bytes, because zoneshtkey got a struct net pointer. Make sure rhashtablelookup is not using the padding bytes whic...

CVE-2024-42272

In the Linux kernel, the following vulnerability has been resolved: sched: actct: take care of padding in struct zoneshtkey Blamed commit increased lookup key size from 2 bytes to 16 bytes, because zoneshtkey got a struct net pointer. Make sure rhashtablelookup is not using the padding bytes whic...

CVE-2024-42272

The connected IBM Security Bulletin confirms CVE-2024-42272 as a Linux kernel issue fixed in sched: act_ct. The root cause was the padding in zones_ht_key after a patch widened the rhashtable key from 2 to 16 bytes; rhashtable_lookup() could read uninitialized padding bytes. The fix ensures paddi...

CVE-2024-42272 sched: act_ct: take care of padding in struct zones_ht_key

In the Linux kernel, the following vulnerability has been resolved: sched: actct: take care of padding in struct zoneshtkey Blamed commit increased lookup key size from 2 bytes to 16 bytes, because zoneshtkey got a struct net pointer. Make sure rhashtablelookup is not using the padding bytes whic...

CVE-2023-52610

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix skb leak and crash on ooo frags actct adds skb-users before defragmentation. If frags arrive in order, the last frag's reference is reset in: inetfragreasmprepare skbmorph which is not straightforward. Howev...