kernel: net/sched: act_ct: fix skb leak and crash on ooo frags

A memory leak flaw and potential kernel crash were found in the Linux kernel’s Conntrack module. This issue occurs when Conntrack is being used by a local user for a specific configuration, and both fragmented packets are received remotely and out of order. This flaw allows a local or remote user...

kernel: net/sched: act_ct: fix skb leak and crash on ooo frags

A memory leak flaw and potential kernel crash were found in the Linux kernel’s Conntrack module. This issue occurs when Conntrack is being used by a local user for a specific configuration, and both fragmented packets are received remotely and out of order. This flaw allows a local or remote user...

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...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP5 kernel was updated to fix various security issues The following security issues were fixed: CVE-2022-50327: ACPI: processor: idle: Check acpifetchacpidev return value bsc1249859. CVE-2022-50334: hugetlbfs: fix null-ptr-deref in hugetlbfsparseparam bsc1249857...

SUSE-SU-2025:4320-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP5 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2022-50327: ACPI: processor: idle: Check acpifetchacpidev return value bsc1249859. - CVE-2022-50334: hugetlbfs: fix null-ptr-deref in hugetlbfsparseparam bsc1249857. ...

kernel: net/sched: act_ct: fix skb leak and crash on ooo frags

A memory leak flaw and potential kernel crash were found in the Linux kernel’s Conntrack module. This issue occurs when Conntrack is being used by a local user for a specific configuration, and both fragmented packets are received remotely and out of order. This flaw allows a local or remote user...

kernel: net/sched: act_ct: fix skb leak and crash on ooo frags

A memory leak flaw and potential kernel crash were found in the Linux kernel’s Conntrack module. This issue occurs when Conntrack is being used by a local user for a specific configuration, and both fragmented packets are received remotely and out of order. This flaw allows a local or remote user...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to fix various security issues The following security issues were fixed: CVE-2022-50327: ACPI: processor: idle: Check acpifetchacpidev return value bsc1249859. CVE-2022-50334: hugetlbfs: fix null-ptr-deref in hugetlbfsparseparam bsc1249857...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP4 RT kernel was updated to fix various security issues The following security issues were fixed: CVE-2022-50327: ACPI: processor: idle: Check acpifetchacpidev return value bsc1249859. CVE-2022-50334: hugetlbfs: fix null-ptr-deref in hugetlbfsparseparam bsc1249857...

SUSE-SU-2025:4139-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP4 RT kernel was updated to fix various security issues The following security issues were fixed: - CVE-2022-50327: ACPI: processor: idle: Check acpifetchacpidev return value bsc1249859. - CVE-2022-50334: hugetlbfs: fix null-ptr-deref in hugetlbfsparseparam bsc124985...

Security update for the Linux Kernel

The SUSE Linux Enterprise FIXME kernel was updated to fix various security issues The following security issues were fixed: CVE-2022-50327: ACPI: processor: idle: Check acpifetchacpidev return value bsc1249859. CVE-2022-50334: hugetlbfs: fix null-ptr-deref in hugetlbfsparseparam bsc1249857...

kernel: netfilter: conntrack: clamp maximum hashtable size to INT_MAX

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: clamp maximum hashtable size to INTMAX Use INTMAX as maximum size for the conntrack hashtable. Otherwise, it is possible to hit WARNONONCE in kvmallocnodenoprof when resizing hashtable because GFPNOWARN is...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990567)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990567 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: re-fetch conntrack after insertion In case the conntrack is clashing,...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989708)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989708 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: re-fetch conntrack after insertion In case the conntrack is clashing,...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989897)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989897 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: serialize hash resizes and cleanups Syzbot was able to trigger the followin...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988736)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988736 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: re-fetch conntrack after insertion In case the conntrack is clashing,...

Siemens SIMATIC Devices Memory Allocation with Excessive Size Value (CVE-2025-21648)

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: clamp maximum hashtable size to INTMAX Use INTMAX as maximum size for the conntrack hashtable. Otherwise, it is possible to hit WARNONONCE in kvmallocnodenoprof when resizing hashtable because GFPNOWARN is...

EUVD-2022-54671

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: re-fetch conntrack after insertion In case the conntrack is clashing, insertion can free skb-nfct and set skb-nfct to the already-confirmed entry. This wasn't found before because the conntrack entry and the...

CVE-2023-53720

CVE-2023-53720 relates to the Linux kernel mlx5e path where replacing an existing ct entry fails to release the label mapping, causing a memory leak in kernel space (unreferenced object in label mapping path). The issue is triggered during MLX5 TC offload CT entry creation/mod_hdr and label mappi...

Linux Distros Unpatched Vulnerability : CVE-2023-53635

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: conntrack: fix wrong ct-timeout value struct nfconn-timeout is an interval before the conntrack confirmed. After confirmed, it becomes a timestamp. I...