CVE-2026-80690

Kernel crash via uninitialized UFS RPMB list

Published Aug 28, 2026 · Updated Aug 28, 2026

NULL-pointer dereference in Linux 6.19 allows attackers to crash the kernel during teardown after a failed UFS RPMB probe. ufshcd_alloc_host() leaves hba->rpmbs uninitialized because list initialization occurs only inside ufs_rpmb_probe(); teardown then traverses the invalid list after probe failure. Reachability requires a system using the UFS OP-TEE RPMB path and a probe failure; published material identifies no attacker-controlled method for forcing that failure.

CVSS severityUnavailable
Unscored
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL-pointer dereference in Linux 6.19 allows attackers to crash the kernel during teardown after a failed UFS RPMB probe. ufshcd_alloc_host() leaves hba->rpmbs uninitialized because list initialization occurs only inside ufs_rpmb_probe(); teardown then traverses the invalid list after probe failure. Reachability requires a system using the UFS OP-TEE RPMB path and a probe failure; published material identifies no attacker-controlled method for forcing that failure.

The record

CVE
CVE-2026-80690
Published
Aug 28, 2026
Updated
Aug 28, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 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=6.19
  2. Affected versionversion=b06b8c421485e0e96d7fd6aa614fb0b6f2778a03 <0279fd451a9971c0d5b959fc59f3e11b55e1694e
  3. Affected versionversion=b06b8c421485e0e96d7fd6aa614fb0b6f2778a03 <a29db0c7f69572b048a63698e1214842d72221e1

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=6.19; version=b06b8c421485e0e96d7fd6aa614fb0b6f2778a03 <0279fd451a9971c0d5b959fc59f3e11b55e1694e; version=b06b8c421485e0e96d7fd6aa614fb0b6f2778a03 <a29db0c7f69572b048a63698e1214842d72221e1

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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.

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Technologies

Your stack

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Your stack

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