CVE-2026-43030bpf: Fix regsafe() for pointers to packet
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 95b6ec733752b31bfd166c4609d2c1b5cdde9b47 before b52f6d0ef7b308f9d05bbddb78749852f28e8e40; from 6d94e741a8ff818e5518da8257f5ca0aaed1f269 before 37db6b9726d0bcf91cbdf9d63b558c50da49f968; from 6d94e741a8ff818e5518da8257f5ca0aaed1f269 before 015a74476dc1ab6923d89f1ee009aaf43faa7185; from 6d94e741a8ff818e5518da8257f5ca0aaed1f269 before b99d82706bd1511bb875e3de7154698fd9215c99; from 6d94e741a8ff818e5518da8257f5ca0aaed1f269 before 7241da033fdc507b920e092dab1f97b945cb0370; from 6d94e741a8ff818e5518da8257f5ca0aaed1f269 before 8aebe18069394f4a79d2d82080a0f806da449996; from 6d94e741a8ff818e5518da8257f5ca0aaed1f269 before ca995b1462ec6db1e869100ba1fb7356bd3f22f0; from 6d94e741a8ff818e5518da8257f5ca0aaed1f269 before a8502a79e832b861e99218cbd2d8f4312d62e225; and 1 more ranges | CNA record |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 5.10.155 before 5.10.253; from 5.11 before 5.15.203; from 5.16 before 6.1.168; from 6.2 before 6.6.134; from 6.7 before 6.12.81; from 6.13 before 6.18.22; from 6.19 before 6.19.12; 7.0; and 5 more ranges | NVD |
References
- https://git.kernel.org/stable/c/b52f6d0ef7b308f9d05bbddb78749852f28e8e40patch
- https://git.kernel.org/stable/c/37db6b9726d0bcf91cbdf9d63b558c50da49f968patch
- https://git.kernel.org/stable/c/015a74476dc1ab6923d89f1ee009aaf43faa7185patch
- https://git.kernel.org/stable/c/b99d82706bd1511bb875e3de7154698fd9215c99patch
- https://git.kernel.org/stable/c/7241da033fdc507b920e092dab1f97b945cb0370patch
- https://git.kernel.org/stable/c/8aebe18069394f4a79d2d82080a0f806da449996patch
- https://git.kernel.org/stable/c/ca995b1462ec6db1e869100ba1fb7356bd3f22f0patch
- https://git.kernel.org/stable/c/a8502a79e832b861e99218cbd2d8f4312d62e225patch
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.