scsi: ufs: core: Flush exception handling work when RPM level is zero

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Summary

CVECVE-2026-43275
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-06 12:16:48 UTC
Updated2026-05-08 19:30:22 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Flush exception handling work when RPM level is zero Ensure that the exception event handling work is explicitly flushed during suspend when the runtime power management level is set to UFS_PM_LVL_0. When the RPM level is zero, the device power mode and link state both remain active. Previously, the UFS core driver bypassed flushing exception event handling jobs in this configuration. This created a race condition where the driver could attempt to access the host controller to handle an exception after the system had already entered a deep power-down state, resulting in a system crash. Explicitly flush this work and disable auto BKOPs before the suspend callback proceeds. This guarantees that pending exception tasks complete and prevents illegal hardware access during the power-down sequence.

Risk And Classification

Primary CVSS: v3.1 4.7 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-362

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 57d104c153d3d6d7bea60089e80f37501851ed2c d5c3a1a13f97355c397f9439d79cb04b182958a3 git Not specified
CNA Linux Linux affected 57d104c153d3d6d7bea60089e80f37501851ed2c 5d186731bc335cc049d4e57ab9f563cfab95593e git Not specified
CNA Linux Linux affected 57d104c153d3d6d7bea60089e80f37501851ed2c aa8d68d97c7f0ef966e51afc17fdbdc372700edf git Not specified
CNA Linux Linux affected 57d104c153d3d6d7bea60089e80f37501851ed2c aac2fee7513dd25042a616f86a1469b4858d2c5c git Not specified
CNA Linux Linux affected 57d104c153d3d6d7bea60089e80f37501851ed2c 78d8e2d6352e8317686ee3a44811ac14c415a57d git Not specified
CNA Linux Linux affected 57d104c153d3d6d7bea60089e80f37501851ed2c ab71c146c135f9af1614ef0fc29a0a3b84f1a373 git Not specified
CNA Linux Linux affected 57d104c153d3d6d7bea60089e80f37501851ed2c f8ef441811ec413717f188f63d99182f30f0f08e git Not specified
CNA Linux Linux affected 3.18 Not specified
CNA Linux Linux unaffected 3.18 semver Not specified
CNA Linux Linux unaffected 5.15.202 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.165 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.128 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.75 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.16 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.6 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/d5c3a1a13f97355c397f9439d79cb04b182958a3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/f8ef441811ec413717f188f63d99182f30f0f08e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/ab71c146c135f9af1614ef0fc29a0a3b84f1a373 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/aac2fee7513dd25042a616f86a1469b4858d2c5c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/5d186731bc335cc049d4e57ab9f563cfab95593e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/78d8e2d6352e8317686ee3a44811ac14c415a57d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/aa8d68d97c7f0ef966e51afc17fdbdc372700edf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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