CVE-2026-23391

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtCT: drop pending enqueued packets on template removal Templates refer to objects that can go away while packets are sitting in nfqueue refer to: - helper, this can be an issue on module removal. - timeout policy,...

CVE-2026-23391

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtCT: drop pending enqueued packets on template removal Templates refer to objects that can go away while packets are sitting in nfqueue refer to: - helper, this can be an issue on module removal. - timeout policy,...

CVE-2026-23016

In the Linux kernel, the following vulnerability has been resolved: inet: frags: drop fraglist conntrack references Jakub added a warning in nfconntrackcleanupnetlist to make debugging leaked skbs/conntrack references more obvious. syzbot reports this as triggering, and I can also reproduce this...

CVE-2026-23016

The CVE concerns the Linux kernel’s conntrack/frag handling (inet: frags: drop fraglist conntrack references). A bug allows reassembled skb fragments to retain nf_conn references via frag_list, causing conntrack cleanup to block (hangs up to ~60s) when fragmentation/reassembly occurs (UDP/TCP pat...

Linux Kernel Security Vulnerabilities

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 fraglist not releasing connection tracking references. This could lead to memory leaks and blocki...

PT-2026-5519

In the Linux kernel, the following vulnerability has been resolved: inet: frags: drop fraglist conntrack references Jakub added a warning in nf conntrack cleanup net list to make debugging leaked skbs/conntrack references more obvious. syzbot reports this as triggering, and I can also reproduce...

CVE-2025-71146

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconncount: fix leaked ct in error paths There are some situations where ct might be leaked as error paths are skipping the refcounted check and return immediately. In order to solve it make sure that the check is...

UBUNTU-CVE-2025-71146

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconncount: fix leaked ct in error paths There are some situations where ct might be leaked as error paths are skipping the refcounted check and return immediately. In order to solve it make sure that the check is...

CVE-2025-71146

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconncount: fix leaked ct in error paths There are some situations where ct might be leaked as error paths are skipping the refcounted check and return immediately. In order to solve it make sure that the check is...

CVE-2025-71146

The CVE-2025-71146 entry concerns Linux kernel netfilter nf_conncount, where a ct (connection tracking) reference could be leaked on some error paths because the refcounted check was skipped. The published description states the issue and that it is resolved by ensuring the check is always perfor...

CVE-2025-71146

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconncount: fix leaked ct in error paths There are some situations where ct might be leaked as error paths are skipping the refcounted check and return immediately. In order to solve it make sure that the check is...

Linux Kernel Security Vulnerabilities

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, caused by a leak in connection tracking in the wrong path, which may lead to reference counting issues...

CVE-2025-68768

In the Linux kernel, the following vulnerability has been resolved: inet: frags: flush pending skbs in fqdirpreexit We have been seeing occasional deadlocks on pernetopsrwsem since September in NIPA. The stuck task was usually modprobe often loading a driver like ipvlan, trying to take the lock a...

CVE-2025-68768 inet: frags: flush pending skbs in fqdir_pre_exit()

In the Linux kernel, the following vulnerability has been resolved: inet: frags: flush pending skbs in fqdirpreexit We have been seeing occasional deadlocks on pernetopsrwsem since September in NIPA. The stuck task was usually modprobe often loading a driver like ipvlan, trying to take the lock a...

PT-2026-26130

Name of the Vulnerable Software and Affected Versions Linux Kernel affected versions not specified Description The Linux kernel contains an issue related to network packet scheduling. Specifically, the act ct action was found to potentially cause a Use-After-Free UAF condition when interacting wi...

PT-2026-27756

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel's netfilter module, specifically within the xt CT component. The issue involves the handling of connection tracking templates and enqueued packets. When...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-992934)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992934 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: dccp: copy entire header to stack buffer, not just basic one Eric Dumazet...

PT-2025-52956

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a memory leak in the net/mlx5e module related to Traffic Control TC. Specifically, when flow rules are split and extra post act rules are added to the post act...

netfilter: nft_ct: add seqadj extension for natted connections

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SUSE CVE-2025-68206

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: add seqadj extension for natted connections Sequence adjustment may be required for FTP traffic with PASV/EPSV modes. due to need to re-write packet payload IP, port on the ftp control connection. This can requi...