CVE-2022-48791

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.

CVSS

No CVSS.

References

Link	Resource
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

Configurations

No configuration.

History

No history.

Information

Published : 2024-07-16 12:15

Updated : 2024-07-16 13:43

NVD link : CVE-2022-48791

Mitre link : CVE-2022-48791

CVE.ORG link : CVE-2022-48791

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2022-48791", "cveTags": [], "metrics": {}, "published": "2024-07-16T12:15:03.910", "references": [{"url": "https://git.kernel.org/stable/c/3c334cdfd94945b8edb94022a0371a8665b17366", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/510b21442c3a2e3ecc071ba3e666b320e7acdd61", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/61f162aa4381845acbdc7f2be4dfb694d027c018", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d872e7b5fe38f325f5206b6872746fa02c2b4819", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Awaiting Analysis", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: pm8001: Fix use-after-free for aborted TMF sas_task\n\nCurrently a use-after-free may occur if a TMF sas_task is aborted before we\nhandle the IO completion in mpi_ssp_completion(). The abort occurs due to\ntimeout.\n\nWhen the timeout occurs, the SAS_TASK_STATE_ABORTED flag is set and the\nsas_task is freed in pm8001_exec_internal_tmf_task().\n\nHowever, if the I/O completion occurs later, the I/O completion still\nthinks that the sas_task is available. Fix this by clearing the ccb->task\nif the TMF times out - the I/O completion handler does nothing if this\npointer is cleared."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: scsi: pm8001: Correcci\u00f3n de use-after-free para TMF sas_task abortada Actualmente, puede ocurrir un use-after-free si se cancela una TMF sas_task antes de que manejemos la finalizaci\u00f3n de IO en mpi_ssp_completion( ). El aborto se produce debido al tiempo de espera. Cuando se agota el tiempo de espera, se establece el indicador SAS_TASK_STATE_ABORTED y sas_task se libera en pm8001_exec_internal_tmf_task(). Sin embargo, si la finalizaci\u00f3n de E/S se produce m\u00e1s tarde, la finalizaci\u00f3n de E/S todav\u00eda piensa que sas_task est\u00e1 disponible. Solucione este problema borrando la tarea ccb-> si se agota el tiempo de espera del TMF; el controlador de finalizaci\u00f3n de E/S no hace nada si se borra este puntero."}], "lastModified": "2024-07-16T13:43:58.773", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}