CVE-2024-36918

Kernel crash via oversized BPF bloom-map value

Published May 30, 2024 · Updated Aug 5, 2026

Improper input validation in affected Linux kernel versions allows local users with BPF access to crash the kernel via an oversized bloom-map value. The bloom-filter map allocator accepts a value_size above KMALLOC_MAX_SIZE, permitting signed integer overflow during subsequent BPF verifier processing. Reachability requires local BPF map-create and program-load access; the resulting out-of-bounds processing can panic the host without user interaction.

CVSS severity7.8
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in affected Linux kernel versions allows local users with BPF access to crash the kernel via an oversized bloom-map value. The bloom-filter map allocator accepts a value_size above KMALLOC_MAX_SIZE, permitting signed integer overflow during subsequent BPF verifier processing. Reachability requires local BPF map-create and program-load access; the resulting out-of-bounds processing can panic the host without user interaction.

The record

CVE
CVE-2024-36918
Published
May 30, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1068, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 30, 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=5.16
  2. Affected versionversion=9330986c03006ab1d33d243b7cfe598a7a3c1baa <608e13706c8b6c658a0646f09ebced74ec367f7c
  3. Affected versionversion=9330986c03006ab1d33d243b7cfe598a7a3c1baa <a8d89feba7e54e691ca7c4efc2a6264fa83f3687
  4. Affected versionversion=9330986c03006ab1d33d243b7cfe598a7a3c1baa <c418afb9bf23e2f2b76cb819601e4a5d9dbab42d
  5. Affected versionversion=9330986c03006ab1d33d243b7cfe598a7a3c1baa <fa6995eeb62e74b5a1480c73fb7b420c270784d3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.16; version=9330986c03006ab1d33d243b7cfe598a7a3c1baa <608e13706c8b6c658a0646f09ebced74ec367f7c; version=9330986c03006ab1d33d243b7cfe598a7a3c1baa <a8d89feba7e54e691ca7c4efc2a6264fa83f3687; version=9330986c03006ab1d33d243b7cfe598a7a3c1baa <c418afb9bf23e2f2b76cb819601e4a5d9dbab42d; version=9330986c03006ab1d33d243b7cfe598a7a3c1baa <fa6995eeb62e74b5a1480c73fb7b420c270784d3

Published CVSS scores

7.8Linux kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5NIST NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1068Exploitation for Privilege Escalation
T1499Endpoint Denial of Service

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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