# CVE-2022-48791: linux: In the Linux kernel, the following vulnerability has been resolved:  scsi: pm8001: Fix use-after-free for aborted TMF...

CVE-2022-48791 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-48791, released July 16, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-48791
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0025
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 16, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  scsi: pm8001: Fix use-after-free for aborted TMF sas_task  Currently a use-after-free may occur if a TMF sas_task is aborted before we handle the IO completion in mpi_ssp_completion(). The abort occurs due to timeout.  When the timeout occurs, the SAS_TASK_STATE_ABORTED flag is set and the sas_task is freed in pm8001_exec_internal_tmf_task().  However, if the I/O completion occurs later, the I/O completion still thinks that the sas_task is available. Fix this by clearing the ccb->task if the TMF times out - the I/O completion handler does nothing if this pointer is cleared.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.16.11-1 | [DEBIAN-CVE-2022-48791](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48791.md) | Jul 16, 2024 |
| Linux | linux Debian 13.5 (trixie) | 5.16.11-1 | [DEBIAN-CVE-2022-48791](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48791.md) | Jul 16, 2024 |
| Linux | linux Debian 14 | 5.16.11-1 | [DEBIAN-CVE-2022-48791](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48791.md) | Jul 16, 2024 |

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