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VULNERABILITIES

CVE-2026-92518 Details

Description

In the Linux kernel, the following vulnerability has been resolved: riscv, bpf: Fix kernel stack corruption in tailcall with CFI When CONFIG_CFI_CLANG is enabled, prog->bpf_func already skips the kcfi instruction during setup. Including it again in the tailcall jump offset causes it to jump over an extra 4 bytes, skipping the stack pointer adjustment, which will result in kernel stack corruption.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/34b1bb33a025787e05f966e74de18cd36276f801 kernel.org
https://git.kernel.org/stable/c/52fb1756ea1d2759dfef2d86245be00b05dac3a2 kernel.org
https://git.kernel.org/stable/c/a6e11a81da3420fd37f1518d4f238c4d5784086e kernel.org

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-92518
NVD Published Date:
Sep 17, 2026
NVD Last Modified:
Sep 18, 2026
Source:
kernel.org
CVE-2026-92518 Details - Not Deferred