K000163171: Linux kernel netfilter vulnerability CVE-2026-53000

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: netfilter: nat: use kfreercu to release ops Florian Westphal says: "Historically this is not an issue, even for normal base hooks: the data path doesn't use the original nfhookops that are used to...

CVE-2026-72419

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnat: avoid invalid natnet pointer use on failed nfnatinit We ran into below KASAN splat, which is mostly uninteresting, beside for having nfnatregisterfn in the call chain as a cause for the offending access:...

UBUNTU-CVE-2026-72419

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnat: avoid invalid natnet pointer use on failed nfnatinit We ran into below KASAN splat, which is mostly uninteresting, beside for having nfnatregisterfn in the call chain as a cause for the offending access:...

CVE-2026-72419

The CVE-2026-72419 entry concerns the Linux kernel, specifically netfilter nf_nat/nf_tables paths. Description shows a fix for an invalid nat_net pointer use that could occur after nf_nat_init() fails, with an observed KASAN slab-out-of-bounds report in nf_nat_register_fn guarded by nf_tables cod...

EUVD-2026-38868

In the Linux kernel, the following vulnerability has been resolved: netfilter: nat: use kfreercu to release ops Florian Westphal says: "Historically this is not an issue, even for normal base hooks: the data path doesn't use the original nfhookops that are used to register the callbacks. However,...

CVE-2026-53000

In the Linux kernel, the following vulnerability has been resolved: netfilter: nat: use kfreercu to release ops Florian Westphal says: "Historically this is not an issue, even for normal base hooks: the data path doesn't use the original nfhookops that are used to register the callbacks. However,...

CVE-2026-53000: Release of Invalid Pointer or Reference

In the Linux kernel, the following vulnerability has been resolved: netfilter: nat: use kfreercu to release ops Florian Westphal says: "Historically this is not an issue, even for normal base hooks: the data path doesn't use the original nfhookops that are used to register the callbacks. However,...

CVE-2024-50212 lib: alloc_tag_module_unload must wait for pending kfree_rcu calls

In the Linux kernel, the following vulnerability has been resolved: lib: alloctagmoduleunload must wait for pending kfreercu calls Ben Greear reports following splat: ------------ cut here ------------ net/netfilter/nfnatcore.c:1114 module nfnat func:nfnatregisterfn has 256 allocated at module...