Bug 2464384 (CVE-2026-43030) - CVE-2026-43030 kernel: bpf: Fix regsafe() for pointers to packet
Summary: CVE-2026-43030 kernel: bpf: Fix regsafe() for pointers to packet
Keywords:
Status: NEW
Alias: CVE-2026-43030
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-01 15:03 UTC by OSIDB Bzimport
Modified: 2026-05-01 17:30 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-05-01 15:03:42 UTC 
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.
Comment 1 Keith Grant 2026-05-01 17:27:19 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026050100-CVE-2026-43030-58b8@gregkh/T
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