# CVE-2026-45932: bpf: Fix tcx/netkit detach permissions when prog fd isn't given

CVE-2026-45932 is fixed in 57 products on 1 platform, first by ALAS2023-2026-1514, released March 30, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-45932
- Priority: High
- CVSS: 7.3 (Moderate)
- EPSS: 0.0017
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 30, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45932

## Description

In the Linux kernel, the following vulnerability has been resolved:  bpf: Fix tcx/netkit detach permissions when prog fd isn't given  This commit fixes a security issue where BPF_PROG_DETACH on tcx or netkit devices could be executed by any user when no program fd was provided, bypassing permission checks. The fix adds a capability check for CAP_NET_ADMIN or CAP_SYS_ADMIN in this case.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool6.12 amzn 2023 | 1:6.12.95-124.187.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | bpftool6.12-debuginfo amzn 2023 | 1:6.12.95-124.187.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | bpftool6.18 amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | bpftool6.18-debuginfo amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | dtb-aarch64 opensuse-leap 16.0 | 6.12.0-160000.35.1 | [OPENSUSE-SU-2026:20965-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20965-1.md) | Jun 15, 2026 |
| Linux | kernel-64kb opensuse-leap 16.0 | 6.12.0-160000.35.1 | [OPENSUSE-SU-2026:20965-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20965-1.md) | Jun 15, 2026 |
| Linux | kernel-64kb sles 15.7 | 6.4.0-150700.53.60.1 | [SUSE-SU-2026:2482-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2482-1.md) | Jun 22, 2026 |
| Linux | kernel-64kb sles 16.0 | 6.12.0-160000.35.1 | [SUSE-SU-2026:22127-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22127-1.md) | Jun 15, 2026 |
| Linux | kernel-azure opensuse-leap 16.0 | 6.12.0-160000.35.1 | [OPENSUSE-SU-2026:20965-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20965-1.md) | Jun 15, 2026 |
| Linux | kernel-azure sles 15.7 | 6.4.0-150700.53.60.1 | [SUSE-SU-2026:2482-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2482-1.md) | Jun 22, 2026 |
| Linux | kernel-azure sles 16.0 | 6.12.0-160000.35.1 | [SUSE-SU-2026:22127-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22127-1.md) | Jun 15, 2026 |
| Linux | kernel-default opensuse-leap 16.0 | 6.12.0-160000.35.1 | [OPENSUSE-SU-2026:20965-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20965-1.md) | Jun 15, 2026 |
| Linux | kernel-default sles 15.6 | 6.4.0-150600.23.118.1 | [SUSE-SU-2026:2632-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2632-1.md) | Jun 25, 2026 |
| Linux | kernel-default sles 15.7 | 6.4.0-150700.53.60.1 | [SUSE-SU-2026:2482-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2482-1.md) | Jun 22, 2026 |
| Linux | kernel-default sles 16.0 | 6.12.0-160000.35.1 | [SUSE-SU-2026:22127-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22127-1.md) | Jun 15, 2026 |
| Linux | kernel-default-base opensuse-leap 16.0 | 6.12.0-160000.35.1.160000.2.16 | [OPENSUSE-SU-2026:20965-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20965-1.md) | Jun 15, 2026 |
| Linux | kernel-default-base sles 15.6 | 6.4.0-150600.23.118.1.150600.12.56.1 | [SUSE-SU-2026:2632-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2632-1.md) | Jun 25, 2026 |
| Linux | kernel-default-base sles 15.7 | 6.4.0-150700.53.60.1.150700.17.35.4 | [SUSE-SU-2026:2482-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2482-1.md) | Jun 22, 2026 |
| Linux | kernel-default-base sles 16.0 | 6.12.0-160000.35.1.160000.2.16 | [SUSE-SU-2026:22127-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22127-1.md) | Jun 15, 2026 |
| Linux | kernel-docs opensuse-leap 16.0 | 6.12.0-160000.35.1 | [OPENSUSE-SU-2026:20965-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20965-1.md) | Jun 15, 2026 |
| Linux | kernel-docs sles 15.6 | 6.4.0-150600.23.118.1 | [SUSE-SU-2026:2632-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2632-1.md) | Jun 25, 2026 |
| Linux | kernel-docs sles 15.7 | 6.4.0-150700.53.60.1 | [SUSE-SU-2026:2482-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2482-1.md) | Jun 22, 2026 |
| Linux | kernel-docs sles 16.0 | 6.12.0-160000.35.1 | [SUSE-SU-2026:22127-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22127-1.md) | Jun 15, 2026 |
| Linux | kernel-kvmsmall opensuse-leap 16.0 | 6.12.0-160000.35.1 | [OPENSUSE-SU-2026:20965-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20965-1.md) | Jun 15, 2026 |
| Linux | kernel-kvmsmall sles 16.0 | 6.12.0-160000.35.1 | [SUSE-SU-2026:22127-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22127-1.md) | Jun 15, 2026 |
| Linux | kernel-livepatch-6.12.95-124.187 amzn 2023 | 1:1.0-0.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | kernel-livepatch-6.18.15-14.217 amzn 2023 | 1:1.0-0.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel-livepatch-SLE15-SP6_Update_28 sles 15.6 | 1-150600.13.3.1 | [SUSE-SU-2026:2632-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2632-1.md) | Jun 25, 2026 |
| Linux | kernel-livepatch-SLE15-SP7-RT_Update_16 sles 15.7 | 1-150700.1.5.2 | [SUSE-SU-2026:2591-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2591-1.md) | Jun 23, 2026 |
| Linux | kernel-livepatch-SLE15-SP7_Update_16 sles 15.7 | 1-150700.15.3.2 | [SUSE-SU-2026:2482-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2482-1.md) | Jun 22, 2026 |
| Linux | kernel-obs-build opensuse-leap 16.0 | 6.12.0-160000.35.1 | [OPENSUSE-SU-2026:20965-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20965-1.md) | Jun 15, 2026 |
| Linux | kernel-obs-build sles 15.6 | 6.4.0-150600.23.118.1 | [SUSE-SU-2026:2632-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2632-1.md) | Jun 25, 2026 |
| Linux | kernel-obs-build sles 15.7 | 6.4.0-150700.53.60.2 | [SUSE-SU-2026:2482-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2482-1.md) | Jun 22, 2026 |
| Linux | kernel-obs-qa opensuse-leap 16.0 | 6.12.0-160000.35.1 | [OPENSUSE-SU-2026:20965-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20965-1.md) | Jun 15, 2026 |
| Linux | kernel-obs-qa sles 16.0 | 6.12.0-160000.35.1 | [SUSE-SU-2026:22127-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22127-1.md) | Jun 15, 2026 |
| Linux | kernel-rt opensuse-leap 16.0 | 6.12.0-160000.35.1 | [OPENSUSE-SU-2026:20965-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20965-1.md) | Jun 15, 2026 |
| Linux | kernel-source opensuse-leap 16.0 | 6.12.0-160000.35.1 | [OPENSUSE-SU-2026:20965-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20965-1.md) | Jun 15, 2026 |
| Linux | kernel-source sles 15.6 | 6.4.0-150600.23.118.1 | [SUSE-SU-2026:2632-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2632-1.md) | Jun 25, 2026 |
| Linux | kernel-source sles 15.7 | 6.4.0-150700.53.60.1 | [SUSE-SU-2026:2482-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2482-1.md) | Jun 22, 2026 |
| Linux | kernel-source sles 16.0 | 6.12.0-160000.35.1 | [SUSE-SU-2026:22127-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22127-1.md) | Jun 15, 2026 |
| Linux | kernel-syms opensuse-leap 16.0 | 6.12.0-160000.35.1 | [OPENSUSE-SU-2026:20965-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20965-1.md) | Jun 15, 2026 |
| Linux | kernel-syms sles 15.6 | 6.4.0-150600.23.118.1 | [SUSE-SU-2026:2632-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2632-1.md) | Jun 25, 2026 |
| Linux | kernel-syms sles 15.7 | 6.4.0-150700.53.60.1 | [SUSE-SU-2026:2482-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2482-1.md) | Jun 22, 2026 |
| Linux | kernel-syms sles 16.0 | 6.12.0-160000.35.1 | [SUSE-SU-2026:22127-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22127-1.md) | Jun 15, 2026 |
| Linux | kernel-zfcpdump opensuse-leap 16.0 | 6.12.0-160000.35.1 | [OPENSUSE-SU-2026:20965-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20965-1.md) | Jun 15, 2026 |
| Linux | kernel-zfcpdump sles 15.7 | 6.4.0-150700.53.60.1 | [SUSE-SU-2026:2482-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2482-1.md) | Jun 22, 2026 |
| Linux | kernel-zfcpdump sles 16.0 | 6.12.0-160000.35.1 | [SUSE-SU-2026:22127-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22127-1.md) | Jun 15, 2026 |
| Linux | kernel6.12 amzn 2023 | 1:6.12.95-124.187.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | kernel6.12-debuginfo amzn 2023 | 1:6.12.95-124.187.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | kernel6.12-debuginfo-common-aarch64 amzn 2023 | 1:6.12.95-124.187.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | kernel6.12-debuginfo-common-x86_64 amzn 2023 | 1:6.12.95-124.187.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | kernel6.12-devel amzn 2023 | 1:6.12.95-124.187.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | kernel6.12-headers amzn 2023 | 1:6.12.95-124.187.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | kernel6.12-modules-extra amzn 2023 | 1:6.12.95-124.187.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | kernel6.12-modules-extra-common amzn 2023 | 1:6.12.95-124.187.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | kernel6.12-tools amzn 2023 | 1:6.12.95-124.187.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | kernel6.12-tools-debuginfo amzn 2023 | 1:6.12.95-124.187.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | kernel6.12-tools-devel amzn 2023 | 1:6.12.95-124.187.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | kernel6.18 amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-debuginfo amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-debuginfo-common-aarch64 amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-debuginfo-common-x86_64 amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-devel amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-headers amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-libbpf amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-libbpf-debuginfo amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-libbpf-devel amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-libbpf-static amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-modules-extra amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-modules-extra-common amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-tools amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-tools-debuginfo amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-tools-devel amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | linux Debian 13.5 (trixie) | 6.12.115-2 | [DEBIAN-CVE-2026-45932](https://patchblox.com/security/data/fix/linux/debian-cve-2026-45932.md) | May 27, 2026 |
| Linux | linux Debian 14 | 6.18.14-1 | [DEBIAN-CVE-2026-45932](https://patchblox.com/security/data/fix/linux/debian-cve-2026-45932.md) | May 27, 2026 |
| Linux | perf6.12 amzn 2023 | 1:6.12.95-124.187.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | perf6.12-debuginfo amzn 2023 | 1:6.12.95-124.187.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | perf6.18 amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | perf6.18-debuginfo amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | python3-perf6.12 amzn 2023 | 1:6.12.95-124.187.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | python3-perf6.12-debuginfo amzn 2023 | 1:6.12.95-124.187.amzn2023 | [ALAS2023-2026-2014](https://patchblox.com/security/data/fix/linux/alas2023-2026-2014.md) | Aug 3, 2026 |
| Linux | python3-perf6.18 amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | python3-perf6.18-debuginfo amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |

---

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