---
title: "CVE-2026-93237: Linux Kernel - Memory Corruption"
description: "Linux kernel contains a memory corruption vulnerability in LoongArch architecture caused by improper bounds in get_free_mem_region() and mhp_get_pluggable_range() due to missing DIRECT_MAP_PHYSMEM_END definition, letting attackers cause page table corruption, exploit requires specific CPU configurations with fewer physical address bits."
url: https://panop.io/threat-heartbeat/CVE-2026-93237/
---

# CVE-2026-93237 Linux Kernel - Memory Corruption

Linux kernel contains a memory corruption vulnerability in LoongArch architecture caused by improper bounds in get\_free\_mem\_region() and mhp\_get\_pluggable\_range() due to missing DIRECT\_MAP\_PHYSMEM\_END definition, letting attackers cause page table corruption, exploit requires specific CPU configurations with fewer physical address bits.

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-2026-93237)

## Details

Type

Memory Corruption

Impact

Denial Of Service

CVSS vector

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

Published

24 September 2026

Updated

15 October 2026

## Vendor fix

Update to the Linux kernel version that includes the DIRECT\_MAP\_PHYSMEM\_END definition fix.

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-2026-93237](https://nvd.nist.gov/vuln/detail/CVE-2026-93237)
- [https://git.kernel.org/stable/c/55e18311c705cceef6c34d522ea387b1f0069bab](https://git.kernel.org/stable/c/55e18311c705cceef6c34d522ea387b1f0069bab)
- [https://git.kernel.org/stable/c/ab275a23b4d9f04ca6c2f5f6a3246194e045a761](https://git.kernel.org/stable/c/ab275a23b4d9f04ca6c2f5f6a3246194e045a761)
- [https://git.kernel.org/stable/c/2677f97a67fdbc62a82ce1faa67791f54451d36f](https://git.kernel.org/stable/c/2677f97a67fdbc62a82ce1faa67791f54451d36f)

[← All CVEs](https://panop.io/threat-heartbeat/)

## 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.

[Book a demo](https://panop.io/demo)