CVE-2022-48792 (GCVE-0-2022-48792)

Vulnerability from cvelistv5 – Published: 2024-07-16 11:43 – Updated: 2026-08-05 08:52
VLAI
Title
scsi: pm8001: Fix use-after-free for aborted SSP/STP sas_task
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 16:59 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6639 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 869ddbdcae3b4fb83b99889abae31544c149b210 , < fe9ac3eaa2e387a5742b380b73a5a6bc237bf184 (git)
Affected: 869ddbdcae3b4fb83b99889abae31544c149b210 , < d9d93f32534a0a80a1c26bdb0746d90a7b19c2c2 (git)
Affected: 869ddbdcae3b4fb83b99889abae31544c149b210 , < f61f9fccb2cb4bb275674a79d638704db6bc2171 (git)
Affected: 869ddbdcae3b4fb83b99889abae31544c149b210 , < df7abcaa1246e2537ab4016077b5443bb3c09378 (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 5.10.102 , ≤ 5.10.* (semver)
Unaffected: 5.15.25 , ≤ 5.15.* (semver)
Unaffected: 5.16.11 , ≤ 5.16.* (semver)
Unaffected: 5.17 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_affected": "42",
      "product_status:known_not_affected": "157",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: scsi: pm8001: Fix use-after-free for aborted SSP/STP sas_task",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-48792.json",
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                    "timestamp": "2024-09-10T16:59:32.216009Z",
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                  "value": "AV:L - The vulnerability is in the PMC-Sierra pm8001 PCIe SAS/SATA HBA driver completion handlers (mpi_ssp_completion/mpi_sata_completion), reached via local SCSI I/O through libsas, not via network protocols or physical peripheral attachment.\nAC:L - This is a use-after-free on aborted SSP/STP sas_task completion; an attacker who can submit I/O can drive aborts and completions (including via short SG_IO timeouts or error recovery), and both sides of the free-vs-use race are attacker-influenceable on SMP.\nPR:L - Any unprivileged local user who can generate I/O to storage backed by this HBA (filesystem writes or SCSI generic access) can reach the queuecommand/abort/completion path; root or init-namespace CAP_SYS_ADMIN is not required.\nUI:N - Exploitation requires only attacker-initiated I/O and abort/completion activity; no separate victim user action is needed.\nS:U - The UAF corrupts kernel memory in the host kernel\u0027s SCSI/libsas authority and does not cross a VM, IOMMU, or other security boundary.\nC:H - Use-after-free of sas_task enables control of freed object contents (heap spray), which can be leveraged for arbitrary kernel memory disclosure.\nI:H - pm8001_ccb_task_free reads task fields and writes through the freed sas_task (including dma_unmap_sg based on attacker-influenced state), enabling arbitrary write/control-flow hijacking primitives.\nA:H - Use-after-free in IRQ/tasklet completion path can cause kernel oops/panic even when not fully exploited for code execution."
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            "dateUpdated": "2026-08-05T08:52:22.849Z",
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        "assignerShortName": "Linux",
        "cveId": "CVE-2022-48792",
        "datePublished": "2024-07-16T11:43:48.026Z",
        "dateReserved": "2024-07-16T11:38:08.893Z",
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}



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