# CVE-2023-53381: linux: In the Linux kernel, the following vulnerability has been resolved:  NFSD: fix leaked reference count of nfsd4_ssc_um...

CVE-2023-53381 is fixed in 60 products on 1 platform, first by ALAS2023-2023-138, released March 20, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-53381
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0029
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 20, 2023

## Description

In the Linux kernel, the following vulnerability has been resolved:  NFSD: fix leaked reference count of nfsd4_ssc_umount_item  The reference count of nfsd4_ssc_umount_item is not decremented on error conditions. This prevents the laundromat from unmounting the vfsmount of the source file.  This patch decrements the reference count of nfsd4_ssc_umount_item on error.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool RHEL 9 | 0:7.0.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | bpftool amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | bpftool-debuginfo amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | kernel RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | kernel-64k RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-64k-core RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-64k-debug RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-64k-debug-core RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-64k-debug-devel RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-64k-debug-devel-matched RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-64k-debug-modules RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-64k-debug-modules-core RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-64k-debug-modules-extra RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-64k-devel RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-64k-devel-matched RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-64k-modules RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-64k-modules-core RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-64k-modules-extra RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-abi-stablelists RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-core RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-debug RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-debug-core RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-debug-devel RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-debug-devel-matched RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-debug-modules RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-debug-modules-core RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-debug-modules-extra RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-debug-uki-virt RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-debuginfo amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | kernel-devel RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-devel amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | kernel-devel-matched RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-doc RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-headers amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | kernel-libbpf amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | kernel-libbpf-devel amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | kernel-libbpf-static amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | kernel-livepatch-6.1.19-30.43 amzn 2023 | 1.0-0.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | kernel-modules RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-modules-core RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-modules-extra RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-tools RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-tools amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | kernel-tools-debuginfo amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | kernel-tools-devel amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | kernel-tools-libs RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-tools-libs-devel RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-uki-virt RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-zfcpdump RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-zfcpdump-core RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-zfcpdump-devel RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-zfcpdump-devel-matched RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-zfcpdump-modules RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-zfcpdump-modules-core RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | kernel-zfcpdump-modules-extra RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | linux Debian 12.15 (bookworm) | 6.1.20-1 | [DEBIAN-CVE-2023-53381](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53381.md) | Sep 18, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.1.20-1 | [DEBIAN-CVE-2023-53381](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53381.md) | Sep 18, 2025 |
| Linux | linux Debian 14 | 6.1.20-1 | [DEBIAN-CVE-2023-53381](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53381.md) | Sep 18, 2025 |
| Linux | perf RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | perf amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | perf-debuginfo amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | python3-perf RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |
| Linux | python3-perf amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | python3-perf-debuginfo amzn 2023 | 6.1.19-30.43.amzn2023 | [ALAS2023-2023-138](https://patchblox.com/security/data/fix/linux/alas2023-2023-138.md) | Mar 20, 2023 |
| Linux | rtla RHEL 9 | 0:5.14.0-284.11.1.el9_2 | [RHSA-2023:2458](https://patchblox.com/security/data/fix/linux/rhsa-2023-2458.md) | May 9, 2023 |

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