CVE-2025-40361

Rejected by assigning authority

Published Dec 16, 2025 · Updated Dec 16, 2025

Linux Kernel CVE-2025-40361 is a rejected record and no longer identifies an accepted vulnerability in the ext4 subsystem. The former record described ext4_xattr_inode_cache_find allocating extended-attribute data with GFP_KERNEL, which can enter filesystem reclaim while its caller holds filesystem state. The assigning authority provides no rationale beyond rejection, so the ext4 patch remains a code change rather than an accepted vulnerability under this identifier.

CVSS severityUnavailable
Unscored
EPSS probabilityUnavailable
No score available in this record
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

Linux Kernel CVE-2025-40361 is a rejected record and no longer identifies an accepted vulnerability in the ext4 subsystem. The former record described ext4_xattr_inode_cache_find allocating extended-attribute data with GFP_KERNEL, which can enter filesystem reclaim while its caller holds filesystem state. The assigning authority provides no rationale beyond rejection, so the ext4 patch remains a code change rather than an accepted vulnerability under this identifier.

The record

CVE
CVE-2025-40361
Published
Dec 16, 2025
Updated
Dec 16, 2025
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 16, 2025Record 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=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <009127b0fc013aed193961686c28c2b541a5b2f3
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1534f72dc2a11ded38b0e0268fbcc0ca24e9fd4a
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <199ab7b43c5ef7d384f6a08e786e107b3509acda
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <238f7a7356c33a9797a6297c6fdfd87f113b2325
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5e6b27f4e68682aa3db9f83ca04adef89903159b
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <add8458cac0b33a5e7a6b98457b38baea9600859
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <bb7d0d13c6e1f061464d1c425b08348a4e0c235d

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linux Kernelversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <009127b0fc013aed193961686c28c2b541a5b2f3; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1534f72dc2a11ded38b0e0268fbcc0ca24e9fd4a; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <199ab7b43c5ef7d384f6a08e786e107b3509acda; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <238f7a7356c33a9797a6297c6fdfd87f113b2325; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5e6b27f4e68682aa3db9f83ca04adef89903159b; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <add8458cac0b33a5e7a6b98457b38baea9600859; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <bb7d0d13c6e1f061464d1c425b08348a4e0c235d

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

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