CVE-2026-23306 (GCVE-0-2026-23306)

Vulnerability from cvelistv5 – Published: 2026-03-25 10:27 – Updated: 2026-03-25 10:27
VLAI?
Title
scsi: pm8001: Fix use-after-free in pm8001_queue_command()
Summary
In 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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e29c47fe8946cc732b0e0d393b65b13c84bb69d0 , < ebbb852ffbc952b95ddb7e3872b67b3e74c6da47 (git)
Affected: e29c47fe8946cc732b0e0d393b65b13c84bb69d0 , < 8b00427317ba7b7ec91252b034009f638d0f311b (git)
Affected: e29c47fe8946cc732b0e0d393b65b13c84bb69d0 , < c5dc39f8ae055520fd778b7fb0423f11586f15c4 (git)
Affected: e29c47fe8946cc732b0e0d393b65b13c84bb69d0 , < 824a7672e3540962d5c77d4c6666254d7aa6f0b3 (git)
Affected: e29c47fe8946cc732b0e0d393b65b13c84bb69d0 , < 227ff4af00abc40b95123cc27ee8079069dcd8d7 (git)
Affected: e29c47fe8946cc732b0e0d393b65b13c84bb69d0 , < 38353c26db28efd984f51d426eac2396d299cca7 (git)
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    Linux Linux Affected: 5.18
Unaffected: 0 , < 5.18 (semver)
Unaffected: 6.1.167 , ≤ 6.1.* (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.77 , ≤ 6.12.* (semver)
Unaffected: 6.18.17 , ≤ 6.18.* (semver)
Unaffected: 6.19.7 , ≤ 6.19.* (semver)
Unaffected: 7.0-rc2 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: pm8001: Fix use-after-free in pm8001_queue_command()\n\nCommit e29c47fe8946 (\"scsi: pm8001: Simplify pm8001_task_exec()\") refactors\npm8001_queue_command(), however it introduces a potential cause of a double\nfree scenario when it changes the function to return -ENODEV in case of phy\ndown/device gone state.\n\nIn this path, pm8001_queue_command() updates task status and calls\ntask_done to indicate to upper layer that the task has been handled.\nHowever, this also frees the underlying SAS task. A -ENODEV is then\nreturned to the caller. When libsas sas_ata_qc_issue() receives this error\nvalue, it assumes the task wasn\u0027t handled/queued by LLDD and proceeds to\nclean up and free the task again, resulting in a double free.\n\nSince pm8001_queue_command() handles the SAS task in this case, it should\nreturn 0 to the caller indicating that the task has been handled."
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        "dateUpdated": "2026-03-25T10:27:01.719Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    "dateReserved": "2026-01-13T15:37:45.993Z",
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  }
}


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