---
id: CVE-2025-40358
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  riscv: stacktrace: Disable KASAN checks for non-current tasks

  Unwinding the stack of a task other than current, KASAN would report
  "BUG: KASAN: out-of-bounds in walk_s…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  riscv: stacktrace: Disable KASAN checks for non-current tasks

  Unwinding the stack of a task other than current, KASAN would report
  "BUG: KASAN: out-of-bounds in walk_s…
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H'
published: '2025-12-16'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T13:10:00.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-40358'
references:
  - url: 'https://git.kernel.org/stable/c/060ea84a484e852b52b938f234bf9b5503a6c910'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/27379fcc15a10d3e3780fe79ba3fc7ed1ccd78e2'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/2c8d2b53866fb229b438296526ef0fa5a990e5e5'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ef4d626ac59a56f8ec5cc09c1fef26f2923eec6f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f34ba22989da61186f30a40b6a82e0b3337b96fc'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.0015
epssPercentile: 0.03715
ingestedAt: '2026-10-14T13:30:58.440Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

riscv: stacktrace: Disable KASAN checks for non-current tasks

Unwinding the stack of a task other than current, KASAN would report
"BUG: KASAN: out-of-bounds in walk_stackframe+0x41c/0x460"

There is a same issue on x86 and has been resolved by the commit
84936118bdf3 ("x86/unwind: Disable KASAN checks for non-current tasks")
The solution could be applied to RISC-V too.

This patch also can solve the issue:
https://seclists.org/oss-sec/2025/q4/23

[pjw@kernel.org: clean up checkpatch issues]

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.