CVE-2026-90150Network attack vectorHinoki check available

Resource leaks via incomplete device-parser cleanup

Published Sep 17, 2026 · Updated Sep 17, 2026

Resource leaks in Linux pNFS block-layout parsing allow remote attackers to retain kernel resources via failed device parsing. In fs/nfs/blocklayout/dev.c, bl_parse_concat() and bl_parse_stripe() omit failed-child cleanup, bl_free_device() skips arrays when nr_children is zero, and bl_parse_scsi() leaves a released file pointer available for another release. Exposure requires a pNFS-enabled NFS client processing server-supplied device information; the sources do not establish a specific crash or hang.

CVSS severity6.3
Medium
EPSS probability0.20%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Resource leaks in Linux pNFS block-layout parsing allow remote attackers to retain kernel resources via failed device parsing. In fs/nfs/blocklayout/dev.c, bl_parse_concat() and bl_parse_stripe() omit failed-child cleanup, bl_free_device() skips arrays when nr_children is zero, and bl_parse_scsi() leaves a released file pointer available for another release. Exposure requires a pNFS-enabled NFS client processing server-supplied device information; the sources do not establish a specific crash or hang.

The record

CVE
CVE-2026-90150
Published
Sep 17, 2026
Updated
Sep 17, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=3.18
  2. Affected versionversion=5c83746a0cf2831d4b59f5cf99ef5fbf138564e4 <1e1c36b206c659cf94c6755a1d821ed1babd32bc
  3. Affected versionversion=5c83746a0cf2831d4b59f5cf99ef5fbf138564e4 <23e4162405c456ce12c772d5882d306135e828ae
  4. Affected versionversion=5c83746a0cf2831d4b59f5cf99ef5fbf138564e4 <8a2494964edac2a13e82441c2bf887548dc3be0b
  5. Affected versionversion=5c83746a0cf2831d4b59f5cf99ef5fbf138564e4 <c056f817e4200fb18079d5052c273a22f191ff0a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.18; version=5c83746a0cf2831d4b59f5cf99ef5fbf138564e4 <1e1c36b206c659cf94c6755a1d821ed1babd32bc; version=5c83746a0cf2831d4b59f5cf99ef5fbf138564e4 <23e4162405c456ce12c772d5882d306135e828ae; version=5c83746a0cf2831d4b59f5cf99ef5fbf138564e4 <8a2494964edac2a13e82441c2bf887548dc3be0b; version=5c83746a0cf2831d4b59f5cf99ef5fbf138564e4 <c056f817e4200fb18079d5052c273a22f191ff0a

Published CVSS scores

6.3SUSECVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
3.7SUSECVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
4.9TenableAV:L/AC:L/Au:N/C:N/I:N/A:C
5.5TenableCVSS:3.1/AV:L/AC:L/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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.001OS Exhaustion Flood

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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