CVE-2024-47679

Local privilege escalation via inode double eviction

Published Oct 21, 2024 · Updated Aug 5, 2026

Race condition in the Linux VFS allows local users to escalate privileges by triggering concurrent eviction of the same inode. evict_inodes() checks i_count before taking i_lock, allowing find_inode() and iput() to reacquire the inode before two threads call evict() on it. User-namespace mounts let an unprivileged user win the race, causing a double-free or kernel panic and enabling kernel-memory read and write access.

CVSS severity7.8
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in the Linux VFS allows local users to escalate privileges by triggering concurrent eviction of the same inode. evict_inodes() checks i_count before taking i_lock, allowing find_inode() and iput() to reacquire the inode before two threads call evict() on it. User-namespace mounts let an unprivileged user win the race, causing a double-free or kernel panic and enabling kernel-memory read and write access.

The record

CVE
CVE-2024-47679
Published
Oct 21, 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. Oct 21, 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=2.6.37
  2. Affected versionversion=63997e98a3be68d7cec806d22bf9b02b2e1daabb <0eed942bc65de1f93eca7bda51344290f9c573bb
  3. Affected versionversion=63997e98a3be68d7cec806d22bf9b02b2e1daabb <0f8a5b6d0dafa4f533ac82e98f8b812073a7c9d1
  4. Affected versionversion=63997e98a3be68d7cec806d22bf9b02b2e1daabb <3721a69403291e2514d13a7c3af50a006ea1153b
  5. Affected versionversion=63997e98a3be68d7cec806d22bf9b02b2e1daabb <47a68c75052a660e4c37de41e321582ec9496195
  6. Affected versionversion=63997e98a3be68d7cec806d22bf9b02b2e1daabb <489faddb1ae75b0e1a741fe5ca2542a2b5e794a5
  7. Affected versionversion=63997e98a3be68d7cec806d22bf9b02b2e1daabb <540fb13120c9eab3ef203f90c00c8e69f37449d1
  8. Affected versionversion=63997e98a3be68d7cec806d22bf9b02b2e1daabb <6c857fb12b9137fee574443385d53914356bbe11
  9. Affected versionversion=63997e98a3be68d7cec806d22bf9b02b2e1daabb <6cc13a80a26e6b48f78c725c01b91987d61563ef
  10. Affected versionversion=63997e98a3be68d7cec806d22bf9b02b2e1daabb <88b1afbf0f6b221f6c5bb66cc80cd3b38d696687

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.37; version=63997e98a3be68d7cec806d22bf9b02b2e1daabb <0eed942bc65de1f93eca7bda51344290f9c573bb; version=63997e98a3be68d7cec806d22bf9b02b2e1daabb <0f8a5b6d0dafa4f533ac82e98f8b812073a7c9d1; version=63997e98a3be68d7cec806d22bf9b02b2e1daabb <3721a69403291e2514d13a7c3af50a006ea1153b; version=63997e98a3be68d7cec806d22bf9b02b2e1daabb <47a68c75052a660e4c37de41e321582ec9496195; version=63997e98a3be68d7cec806d22bf9b02b2e1daabb <489faddb1ae75b0e1a741fe5ca2542a2b5e794a5; version=63997e98a3be68d7cec806d22bf9b02b2e1daabb <540fb13120c9eab3ef203f90c00c8e69f37449d1; version=63997e98a3be68d7cec806d22bf9b02b2e1daabb <6c857fb12b9137fee574443385d53914356bbe11; version=63997e98a3be68d7cec806d22bf9b02b2e1daabb <6cc13a80a26e6b48f78c725c01b91987d61563ef; version=63997e98a3be68d7cec806d22bf9b02b2e1daabb <88b1afbf0f6b221f6c5bb66cc80cd3b38d696687

Published CVSS scores

7.8Linux kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.7Canonical UbuntuCVSS:3.1/AV:L/AC:H/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-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

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Your stack

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