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bdu:2026-06036

certfr-2025-avi-0895 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE. Certaines d'entre elles permettent à un at…

certfr-2025-avi-0895

fkie_cve-2023-53304

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nft_set_rbtree: fix overlap expiration walk

The lazy gc on insert that should remove timed-out entries fails to release the other half of the interval, if any.

Can be reproduced with tests/shell/testcases/sets/0044interval_overlap_0 in nftables.git and kmemleak enabled kernel.

Second bug is the use of rbe_prev vs. prev pointer. If rbe_prev() returns NULL after at least one iteration, rbe_prev points to element that is not an end interval, hence it should not be removed.

Lastly, check the genmask of the end interval if this is active in the current generation.

GHSA-phm5-wwmp-pqvr

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nft_set_rbtree: fix overlap expiration walk

The lazy gc on insert that should remove timed-out entries fails to release the other half of the interval, if any.

Can be reproduced with tests/shell/testcases/sets/0044interval_overlap_0 in nftables.git and kmemleak enabled kernel.

Second bug is the use of rbe_prev vs. prev pointer. If rbe_prev() returns NULL after at least one iteration, rbe_prev points to element that is not an end interval, hence it should not be removed.

Lastly, check the genmask of the end interval if this is active in the current generation.

RHSA-2024:2394 — security update for kernel

security update for kernel

RHSA-2024:3421 — Red Hat Security Advisory: kernel security and bug fix update

kernel: netfilter: nf_tables: netlink notifier might race to release objects kernel: netfilter: nf_tables: possible module reference underflow in error path kernel: netfilter: nf_tables: do not allow SET_ID to refer to another table kernel: Use-after-free in nft_verdict_dump due to a race between set GC and transaction kernel: Marvin vulnerability side-channel leakage in the RSA decryption operation kernel: inactive elements in nft_pipapo_walk kernel: netfilter: nftables: exthdr: fix 4-byte stack OOB write kernel: netfilter: nf_tables: don't skip expired elements during walk kernel: x86/i8259: Mark legacy PIC interrupts with IRQ_LEVEL kernel: Linux kernel: Denial of Service in netfilter due to improper garbage collection kernel: netfilter: nft_set_rbtree: fix null deref on element insertion kernel: netfilter: nf_tables: fix underflow in chain reference counter kernel: nf_tables: use-after-free vulnerability in the nft_verdict_init() function hw: amd: Instruction raise #VC exception at exit hw: amd: Instruction raise #VC exception at exit kernel: mlxsw: spectrum_acl_tcam: Fix stack corruption

SUSE-SU-2025:03600-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2023-53304

Affected: Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:18.04:LTS: linux-aws-5.0, Ubuntu:18.04:LTS: linux-aws-5.3, Ubuntu:18.04:LTS: linux-azure, Ubuntu:18.04:LTS: linux-azure-5.3, Ubuntu:18.04:LTS: linux-azure-edge, Ubuntu:18.04:LTS: linux-gcp, Ubuntu:18.04:LTS: linux-gcp-5.3, Ubuntu:18.04:LTS: linux-gke-4.15, Ubuntu:18.04:LTS: linux-gke-5.4 and 109 more

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: fix overlap expiration walk The lazy gc on insert that should remove timed-out entries fails to release the other half of the interval, if any. Can be reproduced with tests/shell/testcases/sets/0044interval_overlap_0 in nftables.git and kmemleak enabled kernel. Second bug is the use of rbe_prev vs. prev pointer. If rbe_prev() returns NULL after at least one iteration, rbe_prev points to element that is not an end interval, hence it should not be removed. Lastly, check the genmask of the end interval if this is active in the current generation.

WID-SEC-W-2025-2077 — Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen oder nicht näher beschriebene Auswirkungen zu erzielen.