CVE-2024-41076

Memory exhaustion via unreleased NFSv4 label attributes

Published Jul 29, 2024 · Updated May 11, 2026

Memory leak in Linux kernel NFSv4 starting at 5.16 allows local users to exhaust memory by repeatedly setting security xattrs. nfs4_set_security_label allocates an nfs_fattr with an attached nfs4_label, but the affected return path omits nfs_free_fattr after SETATTR. Reachability requires an NFSv4 client mount whose server advertises security-label capability; repeated writes consume kernel memory and can interrupt the system.

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

Memory leak in Linux kernel NFSv4 starting at 5.16 allows local users to exhaust memory by repeatedly setting security xattrs. nfs4_set_security_label allocates an nfs_fattr with an attached nfs4_label, but the affected return path omits nfs_free_fattr after SETATTR. Reachability requires an NFSv4 client mount whose server advertises security-label capability; repeated writes consume kernel memory and can interrupt the system.

The record

CVE
CVE-2024-41076
Published
Jul 29, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 29, 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=1b00ad657997c8984a9e627a3bd37ea14f20beb2 <899604a7c958771840941caff9ee3dd8193d984c
  2. Affected versionversion=1b00ad657997c8984a9e627a3bd37ea14f20beb2 <aad11473f8f4be3df86461081ce35ec5b145ba68
  3. Affected versionversion=1b00ad657997c8984a9e627a3bd37ea14f20beb2 <b98090699319e64f5de1e8db5bb75870f1eb1c6e
  4. Affected versionversion=1b00ad657997c8984a9e627a3bd37ea14f20beb2 <d130220ccc94d74d70da984a199477937e7bf03c
  5. Affected versionversion=5.16

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1b00ad657997c8984a9e627a3bd37ea14f20beb2 <899604a7c958771840941caff9ee3dd8193d984c; version=1b00ad657997c8984a9e627a3bd37ea14f20beb2 <aad11473f8f4be3df86461081ce35ec5b145ba68; version=1b00ad657997c8984a9e627a3bd37ea14f20beb2 <b98090699319e64f5de1e8db5bb75870f1eb1c6e; version=1b00ad657997c8984a9e627a3bd37ea14f20beb2 <d130220ccc94d74d70da984a199477937e7bf03c; version=5.16

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
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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