CVE-2024-35974

Block-cgroup list corruption during disk rebind

Published May 20, 2024 · Updated May 23, 2026

List corruption in the Linux kernel 5.18 and selected later releases allows attackers to corrupt block-cgroup state during disk rebind. The blkcg_init_disk() path reinitializes q->blkg_list while delayed blkg_free_workfn() cleanup can leave a blkg linked, corrupting the queue list. Reachability requires multiple gendisk instances to be allocated and added for one request queue during disk rebind; no further security consequence is published.

CVSS severityUnavailable
Unscored
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

List corruption in the Linux kernel 5.18 and selected later releases allows attackers to corrupt block-cgroup state during disk rebind. The blkcg_init_disk() path reinitializes q->blkg_list while delayed blkg_free_workfn() cleanup can leave a blkg linked, corrupting the queue list. Reachability requires multiple gendisk instances to be allocated and added for one request queue during disk rebind; no further security consequence is published.

The record

CVE
CVE-2024-35974
Published
May 20, 2024
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. May 20, 2024CVE publishedPublication date reported by the CVE source.
  2. May 23, 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=1059699f87eb0b3aa9d574b91a572d534897134a <740ffad95ca8033bd6e080ed337655b13b4d38ac
  2. Affected versionversion=1059699f87eb0b3aa9d574b91a572d534897134a <858c489d81d659af17a4d11cfaad2afb42e47a76
  3. Affected versionversion=1059699f87eb0b3aa9d574b91a572d534897134a <8b8ace080319a866f5dfe9da8e665ae51d971c54
  4. Affected versionversion=5.18
  5. Affected versionversion=6.1.16 <6.1.17
  6. Affected versionversion=6.2.3 <6.2.4
  7. Affected versionversion=81c1188905f88b77743d1fdeeedfc8cb7b67787d <b5dae1cd0d8368b4338430ff93403df67f0b8bcc
  8. Affected versionversion=bfe46d2efe46c5c952f982e2ca94fe2ec5e58e2a <083b58373463a6e5ee60ecb135269348f68ad7df

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=1059699f87eb0b3aa9d574b91a572d534897134a <740ffad95ca8033bd6e080ed337655b13b4d38ac; version=1059699f87eb0b3aa9d574b91a572d534897134a <858c489d81d659af17a4d11cfaad2afb42e47a76; version=1059699f87eb0b3aa9d574b91a572d534897134a <8b8ace080319a866f5dfe9da8e665ae51d971c54; version=5.18; version=6.1.16 <6.1.17; version=6.2.3 <6.2.4; version=81c1188905f88b77743d1fdeeedfc8cb7b67787d <b5dae1cd0d8368b4338430ff93403df67f0b8bcc; version=bfe46d2efe46c5c952f982e2ca94fe2ec5e58e2a <083b58373463a6e5ee60ecb135269348f68ad7df

Published CVSS scores

No CVSS assessment is available in this record.

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

Weakness, pattern, technique

No sourced classifications are available.

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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