CVE-2024-46782

System crash via stale ILA netfilter callback

Published Sep 18, 2024 · Updated May 11, 2026

Use-after-free in the Linux kernel ILA subsystem allows local users to crash the system during network-namespace teardown. ila_xlat_exit_net() frees the ILA rhashtable before nf_unregister_net_hooks() removes callbacks, allowing ila_nf_input() to read freed memory. Exploitation requires local privileges and a teardown race while ILA netfilter processing remains active; the demonstrated consequence is a kernel fault and service interruption.

CVSS severity7.8
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Linux kernel ILA subsystem allows local users to crash the system during network-namespace teardown. ila_xlat_exit_net() frees the ILA rhashtable before nf_unregister_net_hooks() removes callbacks, allowing ila_nf_input() to read freed memory. Exploitation requires local privileges and a teardown race while ILA netfilter processing remains active; the demonstrated consequence is a kernel fault and service interruption.

The record

CVE
CVE-2024-46782
Published
Sep 18, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 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=4.5
  2. Affected versionversion=7f00feaf107645d95a6d87e99b4d141ac0a08efd <031ae72825cef43e4650140b800ad58bf7a6a466
  3. Affected versionversion=7f00feaf107645d95a6d87e99b4d141ac0a08efd <18a5a16940464b301ea91bf5da3a324aedb347b2
  4. Affected versionversion=7f00feaf107645d95a6d87e99b4d141ac0a08efd <43d34110882b97ba1ec66cc8234b18983efb9abf
  5. Affected versionversion=7f00feaf107645d95a6d87e99b4d141ac0a08efd <47abd8adddbc0aecb8f231269ef659148d5dabe4
  6. Affected versionversion=7f00feaf107645d95a6d87e99b4d141ac0a08efd <925c18a7cff93d8a4320d652351294ff7d0ac93c
  7. Affected versionversion=7f00feaf107645d95a6d87e99b4d141ac0a08efd <93ee345ba349922834e6a9d1dadabaedcc12dce6
  8. Affected versionversion=7f00feaf107645d95a6d87e99b4d141ac0a08efd <bda4d84ac0d5421b346faee720011f58bdb99673
  9. Affected versionversion=7f00feaf107645d95a6d87e99b4d141ac0a08efd <dcaf4e2216824839d26727a15b638c6a677bd9fc

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.5; version=7f00feaf107645d95a6d87e99b4d141ac0a08efd <031ae72825cef43e4650140b800ad58bf7a6a466; version=7f00feaf107645d95a6d87e99b4d141ac0a08efd <18a5a16940464b301ea91bf5da3a324aedb347b2; version=7f00feaf107645d95a6d87e99b4d141ac0a08efd <43d34110882b97ba1ec66cc8234b18983efb9abf; version=7f00feaf107645d95a6d87e99b4d141ac0a08efd <47abd8adddbc0aecb8f231269ef659148d5dabe4; version=7f00feaf107645d95a6d87e99b4d141ac0a08efd <925c18a7cff93d8a4320d652351294ff7d0ac93c; version=7f00feaf107645d95a6d87e99b4d141ac0a08efd <93ee345ba349922834e6a9d1dadabaedcc12dce6; version=7f00feaf107645d95a6d87e99b4d141ac0a08efd <bda4d84ac0d5421b346faee720011f58bdb99673; version=7f00feaf107645d95a6d87e99b4d141ac0a08efd <dcaf4e2216824839d26727a15b638c6a677bd9fc

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.7Oracle LinuxCVSS:3.1/AV:L/AC:L/PR:H/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free

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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