# CVE-2023-53810: linux: In the Linux kernel, the following vulnerability has been resolved:  blk-mq: release crypto keyslot before reporting...

CVE-2023-53810 is fixed in 76 products on 1 platform, first by ALAS2023-2023-184, released May 25, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-53810
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0014
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 25, 2023

## Description

In the Linux kernel, the following vulnerability has been resolved:  blk-mq: release crypto keyslot before reporting I/O complete  Once all I/O using a blk_crypto_key has completed, filesystems can call blk_crypto_evict_key().  However, the block layer currently doesn't call blk_crypto_put_keyslot() until the request is being freed, which happens after upper layers have been told (via bio_endio()) the I/O has completed.  This causes a race condition where blk_crypto_evict_key() can see 'slot_refs != 0' without there being an actual bug.  This makes __blk_crypto_evict_key() hit the 'WARN_ON_ONCE(atomic_read(&slot->slot_refs) != 0)' and return without doing anything, eventually causing a use-after-free in blk_crypto_reprogram_all_keys().  (This is a very rare bug and has only been seen when per-file keys are being used with fscrypt.)  There are two options to fix this: either release the keyslot before bio_endio() is called on the request's last bio, or make __blk_crypto_evict_key() ignore slot_refs.  Let's go with the first solution, since it preserves the ability to report bugs (via WARN_ON_ONCE) where a key is evicted while still in-use.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool RHEL 9 | 0:7.3.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | bpftool amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | bpftool-debuginfo amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | kernel RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | kernel-64k RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-64k-core RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-64k-debug RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-64k-debug-core RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-64k-debug-devel RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-64k-debug-devel-matched RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-64k-debug-modules RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-64k-debug-modules-core RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-64k-debug-modules-extra RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-64k-devel RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-64k-devel-matched RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-64k-modules RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-64k-modules-core RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-64k-modules-extra RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-abi-stablelists RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-core RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-debug RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-debug-core RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-debug-devel RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-debug-devel-matched RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-debug-modules RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-debug-modules-core RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-debug-modules-extra RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-debug-uki-virt RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-debuginfo amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | kernel-devel RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-devel amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | kernel-devel-matched RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-doc RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-headers amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | kernel-libbpf amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | kernel-libbpf-devel amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | kernel-libbpf-static amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | kernel-livepatch-6.1.29-47.49 amzn 2023 | 1.0-0.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | kernel-modules RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-modules-core RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-modules-extra RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-rt RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-rt-core RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-rt-debug RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-rt-debug-core RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-rt-debug-devel RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-rt-debug-kvm RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-rt-debug-modules RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-rt-debug-modules-core RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-rt-debug-modules-extra RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-rt-devel RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-rt-kvm RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-rt-modules RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-rt-modules-core RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-rt-modules-extra RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-tools RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-tools amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | kernel-tools-debuginfo amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | kernel-tools-devel amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | kernel-tools-libs RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-tools-libs-devel RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-uki-virt RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-zfcpdump RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-zfcpdump-core RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-zfcpdump-devel RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-zfcpdump-devel-matched RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-zfcpdump-modules RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-zfcpdump-modules-core RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | kernel-zfcpdump-modules-extra RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | libperf RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | linux Debian 12.15 (bookworm) | 6.1.37-1 | [DEBIAN-CVE-2023-53810](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53810.md) | Dec 9, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.3.7-1 | [DEBIAN-CVE-2023-53810](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53810.md) | Dec 9, 2025 |
| Linux | linux Debian 14 | 6.3.7-1 | [DEBIAN-CVE-2023-53810](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53810.md) | Dec 9, 2025 |
| Linux | perf RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | perf amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | perf-debuginfo amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | python3-perf RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | python3-perf amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | python3-perf-debuginfo amzn 2023 | 6.1.29-47.49.amzn2023 | [ALAS2023-2023-184](https://patchblox.com/security/data/fix/linux/alas2023-2023-184.md) | May 25, 2023 |
| Linux | rtla RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |
| Linux | rv RHEL 9 | 0:5.14.0-427.13.1.el9_4 | [RHSA-2024:2394](https://patchblox.com/security/data/fix/linux/rhsa-2024-2394.md) | Apr 30, 2024 |

---

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