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Unrated severityNVD Advisory· Published Jul 16, 2024· Updated Dec 23, 2025

scsi: pm8001: Fix use-after-free for aborted SSP/STP sas_task

CVE-2022-48792

Description

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

scsi: pm8001: Fix use-after-free for aborted SSP/STP sas_task

Currently a use-after-free may occur if a sas_task is aborted by the upper layer before we handle the I/O completion in mpi_ssp_completion() or mpi_sata_completion().

In this case, the following are the two steps in handling those I/O completions:

- Call complete() to inform the upper layer handler of completion of the I/O.

- Release driver resources associated with the sas_task in pm8001_ccb_task_free() call.

When complete() is called, the upper layer may free the sas_task. As such, we should not touch the associated sas_task afterwards, but we do so in the pm8001_ccb_task_free() call.

Fix by swapping the complete() and pm8001_ccb_task_free() calls ordering.

Affected products

194

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

4

News mentions

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