CVE-2024-53151

System crash via svcrdma segment-count overflow

Published Dec 24, 2024 · Updated Aug 5, 2026

Integer overflow in the Linux kernel svcrdma receiver allows attackers to crash 32-bit systems via a crafted RPC-over-RDMA chunk list. The xdr_check_write_chunk function multiplies an untrusted 32-bit segment count by 16 before xdr_inline_decode, allowing the size calculation to wrap and admit a malformed buffer. Exploitation requires the svcrdma receive path on a 32-bit kernel; the published assessment identifies availability loss without data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in the Linux kernel svcrdma receiver allows attackers to crash 32-bit systems via a crafted RPC-over-RDMA chunk list. The xdr_check_write_chunk function multiplies an untrusted 32-bit segment count by 16 before xdr_inline_decode, allowing the size calculation to wrap and admit a malformed buffer. Exploitation requires the svcrdma receive path on a 32-bit kernel; the published assessment identifies availability loss without data disclosure or modification.

The record

CVE
CVE-2024-53151
Published
Dec 24, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-190, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 24, 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=5.11
  2. Affected versionversion=78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 <21e1cf688fb0397788c8dd42e1e0b08d58ac5c7b
  3. Affected versionversion=78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 <3c63d8946e578663b868cb9912dac616ea68bfd0
  4. Affected versionversion=78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 <4cbc3ba6dc2f746497cade60bcbaa82ae3696689
  5. Affected versionversion=78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 <838dd342962cef4c320632a5af48d3c31f2f9877
  6. Affected versionversion=78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 <c1f8195bf68edd2cef0f18a4cead394075a54b5a
  7. Affected versionversion=78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 <e5c440c227ecdc721f2da0dd88b6358afd1031a7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.11; version=78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 <21e1cf688fb0397788c8dd42e1e0b08d58ac5c7b; version=78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 <3c63d8946e578663b868cb9912dac616ea68bfd0; version=78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 <4cbc3ba6dc2f746497cade60bcbaa82ae3696689; version=78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 <838dd342962cef4c320632a5af48d3c31f2f9877; version=78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 <c1f8195bf68edd2cef0f18a4cead394075a54b5a; version=78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 <e5c440c227ecdc721f2da0dd88b6358afd1031a7

Published CVSS scores

5.5NVDCVSS: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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
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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