CVE-2024-35882

Server memory exhaustion via unreleased record-marker pages

Published May 19, 2024 · Updated Aug 5, 2026

Memory leakage in Linux kernel SUNRPC allows local users to exhaust server memory by driving RPC-over-TCP responses. The transmit path assumes sock_sendmsg releases every bio_vec page, while svc_xprt_release omits the record-marker page fragment from the response pages it frees. An RPC server using TCP must be active, and repeated responses accumulate the leak until memory pressure interrupts service.

CVSS severity5.5
Medium
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leakage in Linux kernel SUNRPC allows local users to exhaust server memory by driving RPC-over-TCP responses. The transmit path assumes sock_sendmsg releases every bio_vec page, while svc_xprt_release omits the record-marker page fragment from the response pages it frees. An RPC server using TCP must be active, and repeated responses accumulate the leak until memory pressure interrupts service.

The record

CVE
CVE-2024-35882
Published
May 19, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 19, 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

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=6.6
  2. Affected versionversion=e18e157bb5c8c1cd8a9ba25acfdcf4f3035836f4 <05258a0a69b3c5d2c003f818702c0a52b6fea861
  3. Affected versionversion=e18e157bb5c8c1cd8a9ba25acfdcf4f3035836f4 <1ba1291172f935e6b6fe703161a948f3347400b8
  4. Affected versionversion=e18e157bb5c8c1cd8a9ba25acfdcf4f3035836f4 <a2ebedf7bcd17a1194a0a18122c885eb578ee882

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.6; version=e18e157bb5c8c1cd8a9ba25acfdcf4f3035836f4 <05258a0a69b3c5d2c003f818702c0a52b6fea861; version=e18e157bb5c8c1cd8a9ba25acfdcf4f3035836f4 <1ba1291172f935e6b6fe703161a948f3347400b8; version=e18e157bb5c8c1cd8a9ba25acfdcf4f3035836f4 <a2ebedf7bcd17a1194a0a18122c885eb578ee882

Published CVSS scores

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 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-401Missing Release of Memory after Effective Lifetime
T1499.004Endpoint Denial of Service: Application 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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