Bugzilla – Bug 1228013
VUL-0: CVE-2022-48792: kernel: scsi: pm8001: Fix use-after-free for aborted SSP/STP sas_task
Last modified: 2024-07-19 07:56:28 UTC
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. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-48792 https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2022/CVE-2022-48792.mbox https://git.kernel.org/stable/c/fe9ac3eaa2e387a5742b380b73a5a6bc237bf184 https://git.kernel.org/stable/c/d9d93f32534a0a80a1c26bdb0746d90a7b19c2c2 https://git.kernel.org/stable/c/f61f9fccb2cb4bb275674a79d638704db6bc2171 https://git.kernel.org/stable/c/df7abcaa1246e2537ab4016077b5443bb3c09378 https://www.cve.org/CVERecord?id=CVE-2022-48792 https://bugzilla.redhat.com/show_bug.cgi?id=2298128