CVE-2026-43030 (GCVE-0-2026-43030)
Vulnerability from cvelistv5
Published
2026-05-01 14:15
Modified
2026-05-03 05:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
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.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 95b6ec733752b31bfd166c4609d2c1b5cdde9b47 Version: 6d94e741a8ff818e5518da8257f5ca0aaed1f269 Version: 6d94e741a8ff818e5518da8257f5ca0aaed1f269 Version: 6d94e741a8ff818e5518da8257f5ca0aaed1f269 Version: 6d94e741a8ff818e5518da8257f5ca0aaed1f269 Version: 6d94e741a8ff818e5518da8257f5ca0aaed1f269 Version: 6d94e741a8ff818e5518da8257f5ca0aaed1f269 Version: 6d94e741a8ff818e5518da8257f5ca0aaed1f269 |
||
{
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{
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"status": "unaffected",
"version": "5.15.203",
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{
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{
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"version": "6.6.134",
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{
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{
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"status": "unaffected",
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}
],
"cpeApplicability": [
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"nodes": [
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix regsafe() for pointers to packet\n\nIn case rold-\u003ereg-\u003erange == BEYOND_PKT_END \u0026\u0026 rcur-\u003ereg-\u003erange == N\nregsafe() may return true which may lead to current state with\nvalid packet range not being explored. Fix the bug."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-03T05:46:12.745Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"references": [
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"url": "https://git.kernel.org/stable/c/b52f6d0ef7b308f9d05bbddb78749852f28e8e40"
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{
"url": "https://git.kernel.org/stable/c/a8502a79e832b861e99218cbd2d8f4312d62e225"
}
],
"title": "bpf: Fix regsafe() for pointers to packet",
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"assignerShortName": "Linux",
"cveId": "CVE-2026-43030",
"datePublished": "2026-05-01T14:15:30.564Z",
"dateReserved": "2026-05-01T14:12:55.977Z",
"dateUpdated": "2026-05-03T05:46:12.745Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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