CVE-2024-47667

System hangs via oversized inbound PCIe TLPs

Published Oct 9, 2024 · Updated Aug 5, 2026

Data corruption in the Linux PCI Keystone driver allows local users to hang AM65x SR 1.0 systems through oversized inbound PCIe TLPs. The driver leaves PCIe maximum read-request and payload sizes above 128 bytes, so TLPs spanning more than two internal 128-byte AXI bursts can corrupt payload data. Only AM65x silicon revision 1.0 using the Keystone PCIe controller is affected, and corruption can hang applications or the processor.

CVSS severity7.3
High
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

Data corruption in the Linux PCI Keystone driver allows local users to hang AM65x SR 1.0 systems through oversized inbound PCIe TLPs. The driver leaves PCIe maximum read-request and payload sizes above 128 bytes, so TLPs spanning more than two internal 128-byte AXI bursts can corrupt payload data. Only AM65x silicon revision 1.0 using the Keystone PCIe controller is affected, and corruption can hang applications or the processor.

The record

CVE
CVE-2024-47667
Published
Oct 9, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 9, 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=18b0415bc802a8bab5dedba5ae2757e83259e6ee <135843c351c08df72bdd4b4ebea53c8052a76881
  2. Affected versionversion=18b0415bc802a8bab5dedba5ae2757e83259e6ee <576d0fb6f8d4bd4695e70eee173a1b9c7bae9572
  3. Affected versionversion=18b0415bc802a8bab5dedba5ae2757e83259e6ee <86f271f22bbb6391410a07e08d6ca3757fda01fa
  4. Affected versionversion=18b0415bc802a8bab5dedba5ae2757e83259e6ee <af218c803fe298ddf00abef331aa526b20d7ea61
  5. Affected versionversion=18b0415bc802a8bab5dedba5ae2757e83259e6ee <cfb006e185f64edbbdf7869eac352442bc76b8f6
  6. Affected versionversion=18b0415bc802a8bab5dedba5ae2757e83259e6ee <dd47051c76c8acd8cb983f01b4d1265da29cb66a
  7. Affected versionversion=18b0415bc802a8bab5dedba5ae2757e83259e6ee <ebbdbbc580c1695dec283d0ba6448729dc993246
  8. Affected versionversion=5.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=18b0415bc802a8bab5dedba5ae2757e83259e6ee <135843c351c08df72bdd4b4ebea53c8052a76881; version=18b0415bc802a8bab5dedba5ae2757e83259e6ee <576d0fb6f8d4bd4695e70eee173a1b9c7bae9572; version=18b0415bc802a8bab5dedba5ae2757e83259e6ee <86f271f22bbb6391410a07e08d6ca3757fda01fa; version=18b0415bc802a8bab5dedba5ae2757e83259e6ee <af218c803fe298ddf00abef331aa526b20d7ea61; version=18b0415bc802a8bab5dedba5ae2757e83259e6ee <cfb006e185f64edbbdf7869eac352442bc76b8f6; version=18b0415bc802a8bab5dedba5ae2757e83259e6ee <dd47051c76c8acd8cb983f01b4d1265da29cb66a; version=18b0415bc802a8bab5dedba5ae2757e83259e6ee <ebbdbbc580c1695dec283d0ba6448729dc993246; version=5.2

Published CVSS scores

7.3Linux kernel CVE teamCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/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

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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

T1499.004Application or System Exploitation

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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