PT-2026-38972 · Linux · Linux Kernel

CVE-2026-43321

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Published

2026-01-14

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Updated

2026-08-30

CVSS v4.0

8.4

High

VectorAV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description An issue exists in the BPF verifier where live registers for indirect jumps are not properly marked. Specifically, for a gotox rX instruction, the rX register is not marked as used within the compute insn live regs() function.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

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Weakness Enumeration

Related Identifiers

AZL-86166
BDU:2026-12796
CVE-2026-43321

Affected Products

Linux Kernel