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CVE-2026-98478

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Keep internal commands dispatchable during error handling Commit 08b12cda6c44 ("scsi: ufs: core: Switch to scs…

Published Oct 18, 2026EPSS 0.17%

Overview

CVE-2026-98478 is a known-severity vulnerability. It was published on October 18, 2026.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

scsi: ufs: core: Keep internal commands dispatchable during error handling

Commit 08b12cda6c44 ("scsi: ufs: core: Switch to scsi_get_internal_cmd()")

switched UFS internal commands to allocate requests on

hba->host->pseudo_sdev->request_queue, which shares the host tagset with

regular LUNs.

During error recovery, ufshcd_err_handling_prepare() calls

blk_mq_quiesce_tagset(&hba->host->tag_set), marking all queues in the

tagset as quiesced, including pseudo_sdev->request_queue. When

ufshcd_verify_dev_init() subsequently issues internal commands (e.g. NOP

OUT UPIU) via blk_execute_rq(), blk_mq_run_hw_queue() skips running the

quiesced queue, resulting in an unrecoverable circular wait deadlock.

Keep quiescing the tagset and unquiesce the pseudo SCSI device on top of

that, so internal commands stay dispatchable while the logical units remain

quiesced. Re-quiesce the pseudo device before unquiescing the tagset so

that qui

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Frequently asked questions

What is CVE-2026-98478?

CVE-2026-98478 is a known-severity vulnerability. It was published on October 18, 2026.

How severe is CVE-2026-98478?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-98478?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-98478?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-98478 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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