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Vulnerability record · CVE-2026-43030 · published 1 May 2026

CVE-2026-43030: Linux kernel vulnerability

Linux · Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix regsafe() for pointers to packet In case rold->reg->range == BEYOND_PKT_END && rcur->reg->range == N regsafe() may return true which may lead to current state with valid packet range not being explored. Fix the bug.

7.8 CVSS 3.1 High EPSS 0.18% · top 92.9%
7.8CVSS 3.1 base score
0.18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References
14 Jul 2026Last modified by NVD

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix regsafe() for pointers to packet In case rold->reg->range == BEYOND_PKT_END && rcur->reg->range == N regsafe() may return true which may lead to current state with valid packet range not being explored. Fix the bug.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/015a74476dc1ab6923d89f1ee009aaf43faa7185 Patch
https://git.kernel.org/stable/c/37db6b9726d0bcf91cbdf9d63b558c50da49f968 Patch
https://git.kernel.org/stable/c/7241da033fdc507b920e092dab1f97b945cb0370 Patch
https://git.kernel.org/stable/c/8aebe18069394f4a79d2d82080a0f806da449996 Patch
https://git.kernel.org/stable/c/a8502a79e832b861e99218cbd2d8f4312d62e225 Patch
https://git.kernel.org/stable/c/b52f6d0ef7b308f9d05bbddb78749852f28e8e40 Patch
https://git.kernel.org/stable/c/b99d82706bd1511bb875e3de7154698fd9215c99 Patch
https://git.kernel.org/stable/c/ca995b1462ec6db1e869100ba1fb7356bd3f22f0 Patch
https://cert-portal.siemens.com/productcert/html/ssa-019113.html
https://cert-portal.siemens.com/productcert/html/ssa-082556.html

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Source: NIST National Vulnerability Database (record CVE-2026-43030), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.