scsi: pm8001: Fix use-after-free in pm8001_queue_command()

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2026-23306
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-25 11:16:26 UTC
Updated2026-04-02 15:16:30 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: scsi: pm8001: Fix use-after-free in pm8001_queue_command() Commit e29c47fe8946 ("scsi: pm8001: Simplify pm8001_task_exec()") refactors pm8001_queue_command(), however it introduces a potential cause of a double free scenario when it changes the function to return -ENODEV in case of phy down/device gone state. In this path, pm8001_queue_command() updates task status and calls task_done to indicate to upper layer that the task has been handled. However, this also frees the underlying SAS task. A -ENODEV is then returned to the caller. When libsas sas_ata_qc_issue() receives this error value, it assumes the task wasn't handled/queued by LLDD and proceeds to clean up and free the task again, resulting in a double free. Since pm8001_queue_command() handles the SAS task in this case, it should return 0 to the caller indicating that the task has been handled.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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

EPSS: 0.000320000 probability, percentile 0.091780000 (date 2026-04-02)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected e29c47fe8946cc732b0e0d393b65b13c84bb69d0 ebbb852ffbc952b95ddb7e3872b67b3e74c6da47 git Not specified
CNA Linux Linux affected e29c47fe8946cc732b0e0d393b65b13c84bb69d0 8b00427317ba7b7ec91252b034009f638d0f311b git Not specified
CNA Linux Linux affected e29c47fe8946cc732b0e0d393b65b13c84bb69d0 c5dc39f8ae055520fd778b7fb0423f11586f15c4 git Not specified
CNA Linux Linux affected e29c47fe8946cc732b0e0d393b65b13c84bb69d0 824a7672e3540962d5c77d4c6666254d7aa6f0b3 git Not specified
CNA Linux Linux affected e29c47fe8946cc732b0e0d393b65b13c84bb69d0 227ff4af00abc40b95123cc27ee8079069dcd8d7 git Not specified
CNA Linux Linux affected e29c47fe8946cc732b0e0d393b65b13c84bb69d0 38353c26db28efd984f51d426eac2396d299cca7 git Not specified
CNA Linux Linux affected 5.18 Not specified
CNA Linux Linux unaffected 5.18 semver Not specified
CNA Linux Linux unaffected 6.1.167 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.130 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.77 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.17 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.7 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0-rc2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/38353c26db28efd984f51d426eac2396d299cca7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/227ff4af00abc40b95123cc27ee8079069dcd8d7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/824a7672e3540962d5c77d4c6666254d7aa6f0b3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c5dc39f8ae055520fd778b7fb0423f11586f15c4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ebbb852ffbc952b95ddb7e3872b67b3e74c6da47 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8b00427317ba7b7ec91252b034009f638d0f311b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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