# CVE-2023-54200: linux: In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: always release netdev hook... CVE-2023-54200 is fixed in 76 products on 1 platform, first by ALAS2023-2023-228, released June 21, 2023. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2023-54200 - Priority: High - CVSS: 7.8 (high) - EPSS: 0.0015 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Jun 21, 2023 ## Description In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: always release netdev hooks from notifier This reverts "netfilter: nf_tables: skip netdev events generated on netns removal". The problem is that when a veth device is released, the veth release callback will also queue the peer netns device for removal. Its possible that the peer netns is also slated for removal. In this case, the device memory is already released before the pre_exit hook of the peer netns runs: BUG: KASAN: slab-use-after-free in nf_hook_entry_head+0x1b8/0x1d0 Read of size 8 at addr ffff88812c0124f0 by task kworker/u8:1/45 Workqueue: netns cleanup_net Call Trace: nf_hook_entry_head+0x1b8/0x1d0 __nf_unregister_net_hook+0x76/0x510 nft_netdev_unregister_hooks+0xa0/0x220 __nft_release_hook+0x184/0x490 nf_tables_pre_exit_net+0x12f/0x1b0 .. Order is: 1. First netns is released, veth_dellink() queues peer netns device for removal 2. peer netns is queued for removal 3. peer netns device is released, unreg event is triggered 4. unreg event is ignored because netns is going down 5. pre_exit hook calls nft_netdev_unregister_hooks but device memory might be free'd already. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | bpftool RHEL 9 | 0:7.2.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | bpftool amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | bpftool-debuginfo amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | kernel RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | kernel-64k RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-64k-core RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-64k-debug RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-64k-debug-core RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-64k-debug-devel RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-64k-debug-devel-matched RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-64k-debug-modules RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-64k-debug-modules-core RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-64k-debug-modules-extra RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-64k-devel RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-64k-devel-matched RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-64k-modules RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-64k-modules-core RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-64k-modules-extra RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-abi-stablelists RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-core RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-debug RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-debug-core RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-debug-devel RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-debug-devel-matched RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-debug-modules RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-debug-modules-core RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-debug-modules-extra RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-debug-uki-virt RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-debuginfo amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | kernel-devel RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-devel amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | kernel-devel-matched RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-doc RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-headers amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | kernel-libbpf amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | kernel-libbpf-devel amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | kernel-libbpf-static amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | kernel-livepatch-6.1.34-56.100 amzn 2023 | 1.0-0.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | kernel-modules RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-modules-core RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-modules-extra RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-rt RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-rt-core RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-rt-debug RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-rt-debug-core RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-rt-debug-devel RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-rt-debug-kvm RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-rt-debug-modules RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-rt-debug-modules-core RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-rt-debug-modules-extra RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-rt-devel RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-rt-kvm RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-rt-modules RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-rt-modules-core RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-rt-modules-extra RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-tools RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-tools amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | kernel-tools-debuginfo amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | kernel-tools-devel amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | kernel-tools-libs RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-tools-libs-devel RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-uki-virt RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-zfcpdump RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-zfcpdump-core RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-zfcpdump-devel RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-zfcpdump-devel-matched RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-zfcpdump-modules RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-zfcpdump-modules-core RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | kernel-zfcpdump-modules-extra RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | libperf RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | linux Debian 12.15 (bookworm) | 6.1.37-1 | [DEBIAN-CVE-2023-54200](https://patchblox.com/security/data/fix/linux/debian-cve-2023-54200.md) | Dec 30, 2025 | | Linux | linux Debian 13.5 (trixie) | 6.3.7-1 | [DEBIAN-CVE-2023-54200](https://patchblox.com/security/data/fix/linux/debian-cve-2023-54200.md) | Dec 30, 2025 | | Linux | linux Debian 14 | 6.3.7-1 | [DEBIAN-CVE-2023-54200](https://patchblox.com/security/data/fix/linux/debian-cve-2023-54200.md) | Dec 30, 2025 | | Linux | perf RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | perf amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | perf-debuginfo amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | python3-perf RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | python3-perf amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | python3-perf-debuginfo amzn 2023 | 6.1.34-56.100.amzn2023 | [ALAS2023-2023-228](https://patchblox.com/security/data/fix/linux/alas2023-2023-228.md) | Jun 21, 2023 | | Linux | rtla RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | | Linux | rv RHEL 9 | 0:5.14.0-362.8.1.el9_3 | [RHSA-2023:6583](https://patchblox.com/security/data/fix/linux/rhsa-2023-6583.md) | Nov 7, 2023 | --- Data as of 2026-11-09T01:18:40Z UTC. 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