# CVE-2025-71304: linux: In the Linux kernel, the following vulnerability has been resolved:  smack: /smack/doi: accept previously used values...

CVE-2025-71304 is fixed in 67 products on 1 platform, first by ALAS2023-2026-1514, released March 30, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-71304
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 30, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  smack: /smack/doi: accept previously used values  Writing to /smack/doi a value that has ever been written there in the past disables networking for non-ambient labels. E.g.      # cat /smack/doi     3     # netlabelctl -p cipso list     Configured CIPSO mappings (1)      DOI value : 3        mapping type : PASS_THROUGH     # netlabelctl -p map list     Configured NetLabel domain mappings (3)      domain: "_" (IPv4)        protocol: UNLABELED      domain: DEFAULT (IPv4)        protocol: CIPSO, DOI = 3      domain: DEFAULT (IPv6)        protocol: UNLABELED      # cat /smack/ambient     _     # cat /proc/$$/attr/smack/current     _     # ping -c1 10.1.95.12     64 bytes from 10.1.95.12: icmp_seq=1 ttl=64 time=0.964 ms     # echo foo >/proc/$$/attr/smack/current     # ping -c1 10.1.95.12     64 bytes from 10.1.95.12: icmp_seq=1 ttl=64 time=0.956 ms     unknown option 86      # echo 4 >/smack/doi     # echo 3 >/smack/doi !>  [  214.050395] smk_cipso_doi:691 cipso add rc = -17     # echo 3 >/smack/doi !>  [  249.402261] smk_cipso_doi:678 remove rc = -2 !>  [  249.402261] smk_cipso_doi:691 cipso add rc = -17      # ping -c1 10.1.95.12 !!> ping: 10.1.95.12: Address family for hostname not supported      # echo _ >/proc/$$/attr/smack/current     # ping -c1 10.1.95.12     64 bytes from 10.1.95.12: icmp_seq=1 ttl=64 time=0.617 ms  This happens because Smack keeps decommissioned DOIs, fails to re-add them, and consequently refuses to add the “default” domain map:      # netlabelctl -p cipso list     Configured CIPSO mappings (2)      DOI value : 3        mapping type : PASS_THROUGH      DOI value : 4        mapping type : PASS_THROUGH     # netlabelctl -p map list     Configured NetLabel domain mappings (2)      domain: "_" (IPv4)        protocol: UNLABELED !>  (no ipv4 map for default domain here)      domain: DEFAULT (IPv6)        protocol: UNLABELED  Fix by clearing decommissioned DOI definitions and serializing concurrent DOI updates with a new lock.  Also: - allow /smack/doi to live unconfigured, since   adding a map (netlbl_cfg_cipsov4_map_add) may fail.   CIPSO_V4_DOI_UNKNOWN(0) indicates the unconfigured DOI - add new DOI before removing the old default map,   so the old map remains if the add fails  (2008-02-04, Casey Schaufler)

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | bpftool-debuginfo amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | bpftool6.12 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | bpftool6.12-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 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 | kernel amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-debuginfo amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-devel amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-headers amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-libbpf amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-libbpf-debuginfo amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-libbpf-devel amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-libbpf-static amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-livepatch-6.1.166-197.305 amzn 2023 | 1:1.0-0.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-livepatch-6.12.77-99.140 amzn 2023 | 1:1.0-0.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 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-modules-extra amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-modules-extra-common amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-tools amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-tools-debuginfo amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-tools-devel amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel6.12 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-debuginfo-common-aarch64 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-debuginfo-common-x86_64 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-devel amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-headers amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-libbpf amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-libbpf-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-libbpf-devel amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-libbpf-static amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-modules-extra amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-modules-extra-common amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-tools amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-tools-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-tools-devel amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 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 12.15 (bookworm) | 6.1.170-1 | [DEBIAN-CVE-2025-71304](https://patchblox.com/security/data/fix/linux/debian-cve-2025-71304.md) | May 27, 2026 |
| Linux | linux Debian 13.5 (trixie) | 6.12.85-1 | [DEBIAN-CVE-2025-71304](https://patchblox.com/security/data/fix/linux/debian-cve-2025-71304.md) | May 27, 2026 |
| Linux | linux Debian 14 | 6.18.14-1 | [DEBIAN-CVE-2025-71304](https://patchblox.com/security/data/fix/linux/debian-cve-2025-71304.md) | May 27, 2026 |
| Linux | perf amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | perf-debuginfo amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | perf6.12 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | perf6.12-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 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-perf amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | python3-perf-debuginfo amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | python3-perf6.12 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | python3-perf6.12-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 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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