by Kastro
Paper/Archive/CVE-2025-38120

CVE-2025-38120

Linux Linux — netfilter: nf_set_pipapo_avx2: fix initial map fill

EPSS 0.5%CVSS 9.4
critical.is priorityof 100
37
CVSS 9.4 (CNA)9.4 / 10 × 3028.2Not in CISA KEV+300.0EPSS percentile 43.5.435 × 208.7No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_set_pipapo_avx2: fix initial map fill If the first field doesn't cover the entire start map, then we must zero out the remainder, else we leak those bits into the next match round map. The early fix was incomplete and did only fix up the generic C implementation. A followup patch adds a test case to nft_concat_range.sh.

Affected

ProductAffectedFixed inSource
Linux77bf0c4ab928ca4c9a99311f4f70ba0c17fecba9 – < 8164d0efaf370c425dc69a1e8216940d09e7de0c8164d0efaf370c425dc69a1e8216940d09e7de0cCNA
Linux957a4d1c4c5849e4515c9fb4db21bf85318103dc – < b5ad58285f9217d68cd5ea2ad86ce254a3fe7c4db5ad58285f9217d68cd5ea2ad86ce254a3fe7c4dCNA
Linux9625c46ce6fd4f922595a4b32b1de5066d70464f – < 90bc7f5a244aadee4292b28098b7c98aadd4b3aa90bc7f5a244aadee4292b28098b7c98aadd4b3aaCNA
Linux69b6a67f7052905e928d75a0c5871de50e686986 – < 39bab2d3517b5b50c609b4f8c66129bf619fffa039bab2d3517b5b50c609b4f8c66129bf619fffa0CNA
Linux791a615b7ad2258c560f91852be54b0480837c93 – < 251496ce1728c9fd47bd2b20a7b21b20b9a020ca251496ce1728c9fd47bd2b20a7b21b20b9a020caCNA
Linux791a615b7ad2258c560f91852be54b0480837c93 – < 8068e1e42b46518ce680dc6470bcd710efc3fa0a8068e1e42b46518ce680dc6470bcd710efc3fa0aCNA
Linux791a615b7ad2258c560f91852be54b0480837c93 – < ea77c397bff8b6d59f6d83dae1425b08f465e8b5ea77c397bff8b6d59f6d83dae1425b08f465e8b5CNA
Linux8058c88ac0df21239daee54b5934d5c80ca9685f–CNA
Linux5.15.165 – < 5.15.1865.15.186CNA
Linux6.1.103 – < 6.1.1426.1.142CNA
Linux6.6.44 – < 6.6.946.6.94CNA
Linux6.10.3 – < 6.116.11CNA

Scores by source

Linux (CNA)9.4CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgit.kernel.org/stable/c/8164d0efaf370c425dc69a1e8216940d09e7de0crefgit.kernel.org/stable/c/b5ad58285f9217d68cd5ea2ad86ce254a3fe7c4drefgit.kernel.org/stable/c/90bc7f5a244aadee4292b28098b7c98aadd4b3aarefgit.kernel.org/stable/c/39bab2d3517b5b50c609b4f8c66129bf619fffa0refgit.kernel.org/stable/c/251496ce1728c9fd47bd2b20a7b21b20b9a020carefgit.kernel.org/stable/c/8068e1e42b46518ce680dc6470bcd710efc3fa0arefgit.kernel.org/stable/c/ea77c397bff8b6d59f6d83dae1425b08f465e8b5reflists.debian.org/debian-lts-announce/2025/10/msg00008.html