# CVE-2025-40358: linux: In the Linux kernel, the following vulnerability has been resolved:  riscv: stacktrace: Disable KASAN checks for non-...

CVE-2025-40358 is fixed in linux on 1 platform, first by DEBIAN-CVE-2025-40358, released December 16, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-40358
- Priority: High
- CVSS: 7.1 (high)
- EPSS: 0.0015
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 16, 2025

## Description

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]

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.170-1 | [DEBIAN-CVE-2025-40358](https://patchblox.com/security/data/fix/linux/debian-cve-2025-40358.md) | Dec 16, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.12.63-1 | [DEBIAN-CVE-2025-40358](https://patchblox.com/security/data/fix/linux/debian-cve-2025-40358.md) | Dec 16, 2025 |
| Linux | linux Debian 14 | 6.17.8-1 | [DEBIAN-CVE-2025-40358](https://patchblox.com/security/data/fix/linux/debian-cve-2025-40358.md) | Dec 16, 2025 |

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