---
title: "CVE-2026-92518: Linux Kernel - Kernel Stack Corruption"
description: "Linux kernel contains a kernel stack corruption caused by incorrect tailcall jump offset with CONFIG_CFI_CLANG enabled in BPF riscv, letting attackers cause kernel stack corruption, exploit requires kernel with CONFIG_CFI_CLANG enabled."
url: https://panop.io/threat-heartbeat/CVE-2026-92518/
---

# CVE-2026-92518 Linux Kernel - Kernel Stack Corruption

Linux kernel contains a kernel stack corruption caused by incorrect tailcall jump offset with CONFIG\_CFI\_CLANG enabled in BPF riscv, letting attackers cause kernel stack corruption, exploit requires kernel with CONFIG\_CFI\_CLANG enabled.

CVSS base score 7.8 /10

High

CISA KEV

Not listed

Public exploit

None known

EPSS

0.17% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-92518)

## Details

Type

Kernel Stack Corruption

Impact

Privilege Escalation

CVSS vector

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

Published

17 September 2026

Updated

15 October 2026

## Vendor fix

Update to the latest Linux kernel version with the fix applied.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-92518](https://nvd.nist.gov/vuln/detail/CVE-2026-92518)
- [https://git.kernel.org/stable/c/34b1bb33a025787e05f966e74de18cd36276f801](https://git.kernel.org/stable/c/34b1bb33a025787e05f966e74de18cd36276f801)
- [https://git.kernel.org/stable/c/52fb1756ea1d2759dfef2d86245be00b05dac3a2](https://git.kernel.org/stable/c/52fb1756ea1d2759dfef2d86245be00b05dac3a2)
- [https://git.kernel.org/stable/c/a6e11a81da3420fd37f1518d4f238c4d5784086e](https://git.kernel.org/stable/c/a6e11a81da3420fd37f1518d4f238c4d5784086e)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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