CVE-2024-50303

Kernel crash via discarded system RAM flags

Published Nov 19, 2024 · Updated May 11, 2026

Resource-management error in Linux 6.8 through 6.11.6 allows local users to trigger a kernel crash after a kexec reboot. walk_system_ram_res_rev discards resource flags before invoking its callback, causing driver-managed memory to be selected for kexec buffers. Exposure requires suitably placed CXL driver-managed memory and a touched kexec buffer; the demonstrated configuration also used TPM and IMA kexec support.

CVSS severity5.5
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource-management error in Linux 6.8 through 6.11.6 allows local users to trigger a kernel crash after a kexec reboot. walk_system_ram_res_rev discards resource flags before invoking its callback, causing driver-managed memory to be selected for kexec buffers. Exposure requires suitably placed CXL driver-managed memory and a touched kexec buffer; the demonstrated configuration also used TPM and IMA kexec support.

The record

CVE
CVE-2024-50303
Published
Nov 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. Nov 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

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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=6.8
  2. Affected versionversion=7acf164b259d9007264d9d8501da1023f140a3b4 <b125a0def25a082ae944c9615208bf359abdb61c
  3. Affected versionversion=7acf164b259d9007264d9d8501da1023f140a3b4 <dc9031b7919bd346514ea9a720f433b8daf3970d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.8; version=7acf164b259d9007264d9d8501da1023f140a3b4 <b125a0def25a082ae944c9615208bf359abdb61c; version=7acf164b259d9007264d9d8501da1023f140a3b4 <dc9031b7919bd346514ea9a720f433b8daf3970d

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
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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