Use After Free Affecting kernel package, versions *
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Test your applications- Snyk ID SNYK-RHEL7-KERNEL-7516604
- published 17 Jul 2024
- disclosed 16 Jul 2024
Introduced: 16 Jul 2024
CVE-2022-48791 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:7 kernel.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
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.
References
- https://access.redhat.com/security/cve/CVE-2022-48791
- 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