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 the local overlap detection logic in netfilter’s nftsetrbtree. This logic skips the initial eleme...

Linux Distros Unpatched Vulnerability : CVE-2026-46101

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: reject zero shift in nftbitwise Reject zero shift operands for nftbitwise left and right shift expressions during initialization. The carry propagati...

CVE-2026-45897

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftcounter: serialize reset with spinlock Add a global static spinlock to serialize counter fetch+reset operations, preventing concurrent dump-and-reset from underrunning values. The lock is taken before fetching the...

Linux Distros Unpatched Vulnerability : CVE-2026-45873

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: nftsetrbtree: check for partial overlaps in anonymous sets Userspace provides an optimized representation in case intervals are adjacent, where the e...

PT-2026-43764

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the netfilter nft counter component where concurrent dump-and-reset operations can lead to value underrunning. This occurs because parallel resets may read the same...

Linux Distros Unpatched Vulnerability : CVE-2026-45901

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: nftables: revert commitmutex usage in reset path It causes circular lock dependency between commitmutex, nfnlsubsysipset and nlkcbmutex when nft rese...

CVE-2026-45873

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: check for partial overlaps in anonymous sets Userspace provides an optimized representation in case intervals are adjacent, where the end element is omitted. The existing partial overlap detection logic...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: clonesetfence only applies to the flushed set Syzbot, using fault injection, triggered a failing memory allocation with GFPKERNEL, resulting in a WARN message: iter.err WARNING: net/netfilter/nftablesapi.c:84...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021636)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021636 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsocket: fix sk refcount leaks We must put 'sk' reference before returning. Tenable...

CVE-2026-43916 pam_authnft: Heap buffer overflow in NETLINK_SOCK_DIAG reply walker

pamauthnft is a PAM session module binding nftables firewall rules to authenticated sessions via cgroupv2 inodes. Prior to 0.2.0-alpha, a heap buffer over-read in peerlookuptcp src/peerlookup.c:134, prior to the fix allowed a crafted NETLINKSOCKDIAG reply to slip past the message-size check, then...

PT-2026-46007

Name of the Vulnerable Software and Affected Versions Linux kernel versions 6.2 and later Description A desynchronization issue exists in the nft inner parse l2l3 function when processing inner IPv6 packets. While the ipv6 find hdr function correctly calculates the transport header offset by...

CVE-2026-43453

A flaw was found in the Linux kernel's netfilter component, specifically within the nftsetpipapo module. The pipapodrop function performs a stack out-of-bounds read. This occurs when an argument is evaluated at the call site before the function body executes, leading to a read beyond the allocate...

UBUNTU-CVE-2026-43453

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetpipapo: fix stack out-of-bounds read in pipapodrop pipapodrop passes rulemapi + 1.n to pipapounmap as the tooffset argument on every iteration, including the last one where i == m-fieldcount - 1. This reads one...

PT-2026-39114

Name of the Vulnerable Software and Affected Versions Linux kernel versions 5.10 through 6.19 Description A stack out-of-bounds read exists in the nftables pipapo set backend within the pipapo drop function. The issue occurs because the function passes rulemapi + 1.n to pipapo unmap as the to...

PT-2026-51864

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the netfilter module where the nft ct expect obj eval function allocates an expectation and may call nf ct expect related, but fails to drop its local reference. This...

CVE-2026-43114

A flaw was found in the Linux kernel's netfilter component, specifically within the nftsetpipapoavx2 AVX2 matching functions. This vulnerability occurs when a pipapo set with an 'ipv4 . port' key is reloaded. Due to incorrect masking, the system may erroneously identify non-matching elements as...

CVE-2026-43114

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetpipapoavx2: don't return non-matching entry on expiry New test case fails unexpectedly when avx2 matching functions are used. The test first loads a ranomly generated pipapo set with 'ipv4 . port' key, i.e. nft -...

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, caused by an error in the mask used by the nftsetpipapoavx2 function when matching expired entries, which may lead...

CVE-2026-43060

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: drop pending enqueued packets on removal Packets sitting in nfqueue might hold a reference to: - templates that specify the conntrack zone, because a percpu area is used and module removal is possible. - conntra...

CVE-2026-43060 netfilter: nft_ct: drop pending enqueued packets on removal

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: drop pending enqueued packets on removal Packets sitting in nfqueue might hold a reference to: - templates that specify the conntrack zone, because a percpu area is used and module removal is possible. - conntra...