CVE-2022-48791: scsi: pm8001: Fix use-after-free for aborted TMF sas_task
First published: Tue Jul 16 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <5.10.102 | |
| Linux Linux kernel | >=5.11<5.15.25 | |
| Linux Linux kernel | >=5.16<5.16.11 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.3-1 |
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Reference Links
- https://git.kernel.org/stable/c/3c334cdfd94945b8edb94022a0371a8665b17366
- https://git.kernel.org/stable/c/510b21442c3a2e3ecc071ba3e666b320e7acdd61
- https://git.kernel.org/stable/c/61f162aa4381845acbdc7f2be4dfb694d027c018
- https://git.kernel.org/stable/c/d872e7b5fe38f325f5206b6872746fa02c2b4819
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-48791
- https://nvd.nist.gov/vuln/detail/CVE-2022-48791
- https://launchpad.net/bugs/cve/CVE-2022-48791
- https://security-tracker.debian.org/tracker/CVE-2022-48791
- https://ubuntu.com/security/CVE-2022-48791
- https://git.kernel.org/linus/61f162aa4381845acbdc7f2be4dfb694d027c018
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