# CVE-2023-53055: linux: In the Linux kernel, the following vulnerability has been resolved: fscrypt: destroy keyring after security_sb_delet... CVE-2023-53055 is fixed in 20 products on 1 platform, first by DEBIAN-CVE-2023-53055, released May 2, 2025. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2023-53055 - Priority: Routine - CVSS: 5.5 (medium) - EPSS: 0.0020 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: May 2, 2025 ## Description In the Linux kernel, the following vulnerability has been resolved: fscrypt: destroy keyring after security_sb_delete() fscrypt_destroy_keyring() must be called after all potentially-encrypted inodes were evicted; otherwise it cannot safely destroy the keyring. Since inodes that are in-use by the Landlock LSM don't get evicted until security_sb_delete(), this means that fscrypt_destroy_keyring() must be called *after* security_sb_delete(). This fixes a WARN_ON followed by a NULL dereference, only possible if Landlock was being used on encrypted files. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | bpftool amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | bpftool-debuginfo amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | kernel amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | kernel-debuginfo amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | kernel-devel amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | kernel-headers amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | kernel-libbpf amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | kernel-libbpf-devel amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | kernel-libbpf-static amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | kernel-livepatch-6.1.23-36.46 amzn 2023 | 1.0-0.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | kernel-tools amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | kernel-tools-debuginfo amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | kernel-tools-devel amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | linux Debian 12.15 (bookworm) | 6.1.25-1 | [DEBIAN-CVE-2023-53055](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53055.md) | May 2, 2025 | | Linux | linux Debian 13.5 (trixie) | 6.1.25-1 | [DEBIAN-CVE-2023-53055](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53055.md) | May 2, 2025 | | Linux | linux Debian 14 | 6.1.25-1 | [DEBIAN-CVE-2023-53055](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53055.md) | May 2, 2025 | | Linux | perf amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | perf-debuginfo amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | python3-perf amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | | Linux | python3-perf-debuginfo amzn 2023 | 6.1.23-36.46.amzn2023 | [ALAS2023-2025-1054](https://patchblox.com/security/data/fix/linux/alas2023-2025-1054.md) | Jul 1, 2025 | --- Data as of 2026-11-09T13:31:49Z UTC. 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