CVE-2022-49217

Kernel crash via uninitialized CCB scatter-gather count

Published Feb 26, 2025 · Updated May 11, 2026

Missing initialization in the Linux pm8001 SCSI driver allows attackers to crash the kernel during task-abort completion. The pm80xx_send_abort_all function leaves the CCB n_elem field uninitialized, so pm8001_ccb_task_free can pass an invalid scatter-gather count to dma_unmap_sg. Reachability requires the pm8001 driver on supported SAS/SATA controller hardware and a task-abort or read-log completion path; no remote trigger is documented.

CVSS severityUnavailable
Unscored
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing initialization in the Linux pm8001 SCSI driver allows attackers to crash the kernel during task-abort completion. The pm80xx_send_abort_all function leaves the CCB n_elem field uninitialized, so pm8001_ccb_task_free can pass an invalid scatter-gather count to dma_unmap_sg. Reachability requires the pm8001 driver on supported SAS/SATA controller hardware and a task-abort or read-log completion path; no remote trigger is documented.

The record

CVE
CVE-2022-49217
Published
Feb 26, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-909, T1499
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Feb 26, 2025CVE 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=3.10
  2. Affected versionversion=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <16cd02e0951b520bef324adb9a35afcc92501caf
  3. Affected versionversion=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <1824a21b2cedc5774a5adfa74f5f7b90472d8677
  4. Affected versionversion=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <279f318bd7d6e04e6e0bc7b8cd8e190da8fa37a4
  5. Affected versionversion=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <326d894adf89f3c707b7784becbe241830daaab6
  6. Affected versionversion=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <765674e3b30121782a2b792684554baa48c61f5e
  7. Affected versionversion=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <7f12845c8389855dbcc67baa068b6832dc4a396e
  8. Affected versionversion=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <9914461db82caee6c519acfbe10a86fe11bcdeca
  9. Affected versionversion=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <c8db786858d895ac58342f67767b4999ae6538fa
  10. Affected versionversion=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <d6ec4471550cc53e96485a7124c5891e6a38d1c3

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=3.10; version=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <16cd02e0951b520bef324adb9a35afcc92501caf; version=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <1824a21b2cedc5774a5adfa74f5f7b90472d8677; version=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <279f318bd7d6e04e6e0bc7b8cd8e190da8fa37a4; version=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <326d894adf89f3c707b7784becbe241830daaab6; version=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <765674e3b30121782a2b792684554baa48c61f5e; version=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <7f12845c8389855dbcc67baa068b6832dc4a396e; version=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <9914461db82caee6c519acfbe10a86fe11bcdeca; version=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <c8db786858d895ac58342f67767b4999ae6538fa; version=c6b9ef5779c3e1edfa9de949d2a51252bc347663 <d6ec4471550cc53e96485a7124c5891e6a38d1c3

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

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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)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-909Missing Initialization of Resource
T1499Endpoint Denial of Service

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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