CVE-2024-35903

Kernel crash via miscalculated BPF call offset

Published May 19, 2024 · Updated May 11, 2026

Incorrect call-offset calculation in the x86 BPF JIT in Linux 6.2 and later affected releases allows local users to crash the kernel. The JIT passes emit_patch an instruction pointer that is not advanced past code emitted by x86_call_depth_emit_accounting, so the CALL displacement skips instructions. Reachability requires local low-privileged access and an x86 system that exercises the BPF JIT call-depth accounting path; the bounded consequence is a kernel crash.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect call-offset calculation in the x86 BPF JIT in Linux 6.2 and later affected releases allows local users to crash the kernel. The JIT passes emit_patch an instruction pointer that is not advanced past code emitted by x86_call_depth_emit_accounting, so the CALL displacement skips instructions. Reachability requires local low-privileged access and an x86 system that exercises the BPF JIT call-depth accounting path; the bounded consequence is a kernel crash.

The record

CVE
CVE-2024-35903
Published
May 19, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 19, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=6.2
  2. Affected versionversion=b2e9dfe54be4d023124d588d6f03d16a9c0d2507 <3f9d57c771656bfd651e22edcfdb5f60e62542d4
  3. Affected versionversion=b2e9dfe54be4d023124d588d6f03d16a9c0d2507 <81166178cf0a0062a22b1b3b5368183d39577028
  4. Affected versionversion=b2e9dfe54be4d023124d588d6f03d16a9c0d2507 <9d98aa088386aee3db1b7b60b800c0fde0654a4a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.2; version=b2e9dfe54be4d023124d588d6f03d16a9c0d2507 <3f9d57c771656bfd651e22edcfdb5f60e62542d4; version=b2e9dfe54be4d023124d588d6f03d16a9c0d2507 <81166178cf0a0062a22b1b3b5368183d39577028; version=b2e9dfe54be4d023124d588d6f03d16a9c0d2507 <9d98aa088386aee3db1b7b60b800c0fde0654a4a

Published CVSS scores

5.5CISA-ADPCVSS: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

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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