CVE-2026-64003

scsi: core: Run queues for all non-SDEV_DEL devices from scsi_run_host_queues

HIGH
7.5
CVSS Score
Published: July 19, 2026 at 02:56 PM UTC
Updated: October 19, 2026 at 09:17 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Run queues for all non-SDEV_DEL devices from scsi_run_host_queues While a SCSI host is in a recovery state, scsi_mq_requeue_cmd() will not set the requeue list for a requeued command to be kicked in the future. The expectation is a call to scsi_run_host_queues() will kick all SCSI devices once the recovery state is cleared. However, scsi_run_host_queues() uses shost_for_each_device() which uses scsi_device_get() and so will ignore devices in a partially removed state like SDEV_CANCEL. But these devices may also have requeued requests, leaving their requests stuck from not being kicked and causing the removal process of the device to hang. scsi_run_host_queues() needs to run against more devices than the macro shost_for_each_device() allows. Instead of using the too limiting scsi_device_get() state checks, only ignore devices in SDEV_DEL state or when unable to acquire a reference. Attempt to run the queues for all other devices when scsi_run_host_queues() is called.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.13 ≤ v < 6.18.356.19 ≤ v < 7.0.126.5 ≤ v < 6.6.1436.7 ≤ v < 6.12.937.17.1 rc17.1 rc27.1 rc37.1 rc47.1 rc58b566edbdbfb5cde31a322c57932694ff48125ed
Vendor states this is fixed in 15fb19af49f2073ed77fad16aaabc648b0ca6800 (fixed)
Vendor states this is fixed in 475f2b37a78f4c698967a7f14f325f04e24c9175 (fixed)
Vendor states this is fixed in 7205b58702273baf21d6ba7992e6ba15852325f7 (fixed)
Vendor states this is fixed in c740e13e7fe32d8e4d9a1699f65b8daf6709895a (fixed)
Vendor states this is fixed in d4dddfecdbb5467bef158d4e1486459808357fef (fixed)
Vendor states this is fixed in 6.12.93 (unaffected)
Vendor states this is fixed in 6.18.35 (unaffected)
Vendor states this is fixed in 6.5 (unaffected)
Vendor states this is fixed in 6.6.143 (unaffected)
Vendor states this is fixed in 7.0.12 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-772CWE-400

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