CVE-2024-35987

Kernel memory corruption via pre-mem_map writes

Published May 20, 2024 · Updated Aug 5, 2026

Memory corruption in the Linux kernel allows local users to crash 64-bit RISC-V NOMMU systems during early boot. Memory initialization processes PFNs below ARCH_PFN_OFFSET when RAM begins below the kernel load address, causing page initialization to write before mem_map. The affected state requires a 64-bit RISC-V NOMMU kernel and RAM below its load address; corruption can prevent boot or expose or alter adjacent kernel memory.

CVSS severity8.4
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in the Linux kernel allows local users to crash 64-bit RISC-V NOMMU systems during early boot. Memory initialization processes PFNs below ARCH_PFN_OFFSET when RAM begins below the kernel load address, causing page initialization to write before mem_map. The affected state requires a 64-bit RISC-V NOMMU kernel and RAM below its load address; corruption can prevent boot or expose or alter adjacent kernel memory.

The record

CVE
CVE-2024-35987
Published
May 20, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 20, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3335068f87217ea59d08f462187dc856652eea15 <aea702dde7e9876fb00571a2602f25130847bf0f
  2. Affected versionversion=3335068f87217ea59d08f462187dc856652eea15 <b008e327fa570aca210f98c817757649bae56694
  3. Affected versionversion=3335068f87217ea59d08f462187dc856652eea15 <ea6628e4e2353978af7e3b4ad4fdaab6149acf3d
  4. Affected versionversion=6.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3335068f87217ea59d08f462187dc856652eea15 <aea702dde7e9876fb00571a2602f25130847bf0f; version=3335068f87217ea59d08f462187dc856652eea15 <b008e327fa570aca210f98c817757649bae56694; version=3335068f87217ea59d08f462187dc856652eea15 <ea6628e4e2353978af7e3b4ad4fdaab6149acf3d; version=6.4

Published CVSS scores

5.5SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
8.4Linux Kernel CNACVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.5UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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