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.
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
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| bpftool-debuginfo · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-debuginfo · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-debuginfo-common-aarch64 · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-debuginfo-common-x86_64 · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-devel · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-headers · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-libbpf · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-libbpf-devel · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-libbpf-static · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-livepatch-6.1.23-36.46 · amzn 2023 | 1.0-0.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-tools · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-tools-debuginfo · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-tools-devel · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| linux · Debian 12.15 (bookworm) | 6.1.25-1 | DEBIAN-CVE-2023-53055 | May 2, 2025 |
| linux · Debian 13.5 (trixie) | 6.1.25-1 | DEBIAN-CVE-2023-53055 | May 2, 2025 |
| linux · Debian 14 | 6.1.25-1 | DEBIAN-CVE-2023-53055 | May 2, 2025 |
| perf · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| perf-debuginfo · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| python3-perf · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| python3-perf-debuginfo · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
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