CVE-2024-44959

Local privilege escalation via overlapping tracefs inode members

Published Sep 4, 2024 · Updated Aug 5, 2026

Memory corruption in Linux tracefs 6.6.31 through 6.6.45 and 6.8.10 through 6.10.4 allows local users to execute code in the kernel. The tracefs_inode union overlays its vfs_inode with an rcu_head, so call_rcu overwrites randomized i_lru or i_sb_list members and corrupts later list operations. Reachability requires an affected RANDSTRUCT build and local tracefs access; successful abuse grants kernel privileges, while failed abuse can panic the host.

CVSS severity7.8
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Memory corruption in Linux tracefs 6.6.31 through 6.6.45 and 6.8.10 through 6.10.4 allows local users to execute code in the kernel. The tracefs_inode union overlays its vfs_inode with an rcu_head, so call_rcu overwrites randomized i_lru or i_sb_list members and corrupts later list operations. Reachability requires an affected RANDSTRUCT build and local tracefs access; successful abuse grants kernel privileges, while failed abuse can panic the host.

The record

CVE
CVE-2024-44959
Published
Sep 4, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-362, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 4, 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=414fb08628143203d29ccd0264b5a83fb9523c03
  2. Affected versionversion=5f91fc82794d4a6e41cdcd02d00baa377d94ca78 <726f4c241e17be75a9cf6870d80cd7479dc89e8f
  3. Affected versionversion=6.6.31 <6.6.46
  4. Affected versionversion=6.8.10 <6.9
  5. Affected versionversion=6.9
  6. Affected versionversion=baa23a8d4360d981a49913841a726edede5cdd54 <061da60716ce0cde99f62f31937b81e1c03acef6
  7. Affected versionversion=baa23a8d4360d981a49913841a726edede5cdd54 <0b6743bd60a56a701070b89fb80c327a44b7b3e2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=414fb08628143203d29ccd0264b5a83fb9523c03; version=5f91fc82794d4a6e41cdcd02d00baa377d94ca78 <726f4c241e17be75a9cf6870d80cd7479dc89e8f; version=6.6.31 <6.6.46; version=6.8.10 <6.9; version=6.9; version=baa23a8d4360d981a49913841a726edede5cdd54 <061da60716ce0cde99f62f31937b81e1c03acef6; version=baa23a8d4360d981a49913841a726edede5cdd54 <0b6743bd60a56a701070b89fb80c327a44b7b3e2

Published CVSS scores

6.1SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.8SUSECVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:H
7.8Linux CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1068Exploitation for Privilege Escalation

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo