CVE-2026-43030
bpf: Fix regsafe() for pointers to packet
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.
INFO
Published Date :
May 1, 2026, 3:16 p.m.
Last Modified :
May 1, 2026, 3:24 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-43030
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the Linux kernel to the latest version.
- Apply the specific patch for regsafe() function.
- Verify the fix in the updated kernel.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-43030.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-43030 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-43030
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-43030 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-43030 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 01, 2026
Action Type Old Value New Value Added 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. Added Reference https://git.kernel.org/stable/c/015a74476dc1ab6923d89f1ee009aaf43faa7185 Added Reference https://git.kernel.org/stable/c/37db6b9726d0bcf91cbdf9d63b558c50da49f968 Added Reference https://git.kernel.org/stable/c/7241da033fdc507b920e092dab1f97b945cb0370 Added Reference https://git.kernel.org/stable/c/8aebe18069394f4a79d2d82080a0f806da449996 Added Reference https://git.kernel.org/stable/c/a8502a79e832b861e99218cbd2d8f4312d62e225 Added Reference https://git.kernel.org/stable/c/b52f6d0ef7b308f9d05bbddb78749852f28e8e40 Added Reference https://git.kernel.org/stable/c/b99d82706bd1511bb875e3de7154698fd9215c99 Added Reference https://git.kernel.org/stable/c/ca995b1462ec6db1e869100ba1fb7356bd3f22f0