Linux Distros Unpatched Vulnerability : CVE-2026-53219

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: xtables: avoid leaking percpu counter pointers The native and compat get-entries paths copy the fixed rule entry header from the kernelized rule blob...

SUSE CVE-2026-53219

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: avoid leaking percpu counter pointers The native and compat get-entries paths copy the fixed rule entry header from the kernelized rule blob to userspace before overwriting the entry's counter fields with a...

CVE-2026-53219

A flaw was found in the Linux kernel's netfilter xtables component. This vulnerability allows for information disclosure due to improper handling of percpu counter pointers during the copying of rule entry headers to userspace. A local attacker could exploit this by causing a fault in a userspace...

CVE-2026-53219

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: avoid leaking percpu counter pointers The native and compat get-entries paths copy the fixed rule entry header from the kernelized rule blob to userspace before overwriting the entry's counter fields with a...

UBUNTU-CVE-2026-53219

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: avoid leaking percpu counter pointers The native and compat get-entries paths copy the fixed rule entry header from the kernelized rule blob to userspace before overwriting the entry's counter fields with a...

UBUNTU-CVE-2026-53252

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix memory leak in error path of hciallocdev Early failures in Bluetooth HCI UART configuration leak SRCU percpu memory. When device initialization fails before hciregisterdev completes, the HCIUNREGISTER flag is never...

CVE-2026-53252 Bluetooth: fix memory leak in error path of hci_alloc_dev()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix memory leak in error path of hciallocdev Early failures in Bluetooth HCI UART configuration leak SRCU percpu memory. When device initialization fails before hciregisterdev completes, the HCIUNREGISTER flag is never...

CVE-2026-53219

The CVE-2026-53219 issue affects the Linux kernel netfilter x_tables path. The root cause is that native/compat get-entries copied the fixed rule entry header to userspace before sanitizing and overwriting the counter fields, exposing the percpu allocation address (pcnt) in SMP environments. The ...

EUVD-2026-39310

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: avoid leaking percpu counter pointers The native and compat get-entries paths copy the fixed rule entry header from the kernelized rule blob to userspace before overwriting the entry's counter fields with a...

CVE-2026-53219

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: avoid leaking percpu counter pointers The native and compat get-entries paths copy the fixed rule entry header from the kernelized rule blob to userspace before overwriting the entry's counter fields with a...

CVE-2026-53219 netfilter: x_tables: avoid leaking percpu counter pointers

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: avoid leaking percpu counter pointers The native and compat get-entries paths copy the fixed rule entry header from the kernelized rule blob to userspace before overwriting the entry's counter fields with a...

PT-2026-52314

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the netfilter x tables component where the native and compat get-entries paths copy the fixed rule entry header from the kernelized rule blob to userspace before...

CVE-2026-52973

In the Linux kernel, the following vulnerability has been resolved: futex: Drop CLONETHREAD requirement for private default hash alloc Currently needfutexhashallocatedefault depends on strict pthread semantics, abusing CLONETHREAD. This breaks the non-concurrency assumptions when doing the...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: In ext4, the order of execution of functions ext4percpuparaminit and ext4mbinit has been changed. When running kvm-xfstests -c ext4/1k -C 1 generic/383 with the DOUBLECHECK macro defined, a panic occurs as follows:...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: PCI/P2PDMA: Release the per-CPU pgmap reference when vminsertpage fails. When vminsertpage fails in p2pmemallocmmap, p2pmemallocmmap does not invoke percpurefput to free the per-CPU reference to pgmap acquired after...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: flexproportions: making fpropnewperiod safe from hardirq issues. Bernd reported a deadlock issue in the flexible proportions code, which essentially complained about the following race conditions: runtimersoftirq – we’re in a...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: BPF: Freeing special fields when updating lru,percpuhash maps Since lru,percpuhash maps support BPFKPTRREF,PERCPU, missing calls to ‘bpfobjfreefields’ in ‘pcpucopyvalue’ could cause the memory referenced by BPFKPTRREF,PERCPU fiel...

PT-2026-51867

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw in the futex subsystem occurs because the need futex hash allocate default function incorrectly relies on CLONE THREAD semantics. This dependency breaks non-concurrency assumption...

SUSE CVE-2026-46277

In the Linux kernel, the following vulnerability has been resolved: mm/zonedevice: do not touch device folio after calling -foliofree The contents of a device folio can immediately change after calling -foliofree, as the folio may be reallocated by a driver with a different order. Instead of...

CVE-2026-46277

In the Linux kernel, the following vulnerability has been resolved: mm/zonedevice: do not touch device folio after calling -foliofree The contents of a device folio can immediately change after calling -foliofree, as the folio may be reallocated by a driver with a different order. Instead of...