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Vulnerability record · CVE-2026-43321 · published 8 May 2026

CVE-2026-43321: Linux kernel vulnerability

Linux · Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: bpf: Properly mark live registers for indirect jumps For a `gotox rX` instruction the rX register should be marked as used in the compute_insn_live_regs() function. Fix this.

7.8 CVSS 3.1 High EPSS 0.17% · top 94.9%
7.8CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Properly mark live registers for indirect jumps For a `gotox rX` instruction the rX register should be marked as used in the compute_insn_live_regs() function. Fix this.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/7beae54111c34ca63357ef120e115889b915beb5 Patch
https://git.kernel.org/stable/c/d1aab1ca576c90192ba961094d51b0be6355a4d6 Patch

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Source: NIST National Vulnerability Database (record CVE-2026-43321), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.