CVE-2026-99202

Storage-resume hang via recursive runtime power-management wait

Published Oct 28, 2026 · Updated Oct 28, 2026

Deadlock in Linux libsas allows attackers to hang host-adapter resume via SMP commands on an expander-attached SATA disk. In smp_execute_task_sg(), pm_runtime_get_sync() waits for host resume while sas_drain_work() in that resume waits for the same SMP operation. The path requires runtime resume and an expander-attached SATA disk; direct-attached SATA and SSP devices do not reach it, and public sources do not establish attacker privileges or an attacker-controlled trigger.

CVSS severityUnavailable
Unscored
EPSS probability0.17%
Next 30 days · Nov 1, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deadlock in Linux libsas allows attackers to hang host-adapter resume via SMP commands on an expander-attached SATA disk. In smp_execute_task_sg(), pm_runtime_get_sync() waits for host resume while sas_drain_work() in that resume waits for the same SMP operation. The path requires runtime resume and an expander-attached SATA disk; direct-attached SATA and SSP devices do not reach it, and public sources do not establish attacker privileges or an attacker-controlled trigger.

The record

CVE
CVE-2026-99202
Published
Oct 28, 2026
Updated
Oct 28, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 28, 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=09357f067122e2e28ec52e27013a1660a1571618
  2. Affected versionversion=3dbbbf656b850c9c8de05df6ad4a1dfc6ff02845 <08b95ef36a64c3ae4490794bed3c35d0c3354e85
  3. Affected versionversion=3dbbbf656b850c9c8de05df6ad4a1dfc6ff02845 <81e097a064b28b4a1f6ca1a8b433e659c1bd64c0
  4. Affected versionversion=6.1.183 <6.2
  5. Affected versionversion=6.12.103 <6.13
  6. Affected versionversion=6.18.44 <6.18.59
  7. Affected versionversion=6.6.151 <6.7
  8. Affected versionversion=7.1.8 <7.2
  9. Affected versionversion=7.2
  10. Affected versionversion=9e24b47ef81d43b3fb1b14294f09991640c79fcc <c9fb89246d9922ac0a45d504adb03e0bb971310c
  11. Affected versionversion=b9c44a14062093e9fc2d6bddc696cfceadb482d7
  12. Affected versionversion=c391b5899dd46485a5893696c12ae3e95a3a7325
  13. Affected versionversion=e50a6523a603594a6d92cdecfe11997d639410a3

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=09357f067122e2e28ec52e27013a1660a1571618; version=3dbbbf656b850c9c8de05df6ad4a1dfc6ff02845 <08b95ef36a64c3ae4490794bed3c35d0c3354e85; version=3dbbbf656b850c9c8de05df6ad4a1dfc6ff02845 <81e097a064b28b4a1f6ca1a8b433e659c1bd64c0; version=6.1.183 <6.2; version=6.12.103 <6.13; version=6.18.44 <6.18.59; version=6.6.151 <6.7; version=7.1.8 <7.2; version=7.2; version=9e24b47ef81d43b3fb1b14294f09991640c79fcc <c9fb89246d9922ac0a45d504adb03e0bb971310c; version=b9c44a14062093e9fc2d6bddc696cfceadb482d7; version=c391b5899dd46485a5893696c12ae3e95a3a7325; version=e50a6523a603594a6d92cdecfe11997d639410a3

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.

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)
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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