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
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)
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: pm8001: Fix use-after-free for aborted SSP/STP sas_task\n\nCurrently a use-after-free may occur if a sas_task is aborted by the upper\nlayer before we handle the I/O completion in mpi_ssp_completion() or\nmpi_sata_completion().\n\nIn this case, the following are the two steps in handling those I/O\ncompletions:\n\n - Call complete() to inform the upper layer handler of completion of\n   the I/O.\n\n - Release driver resources associated with the sas_task in\n   pm8001_ccb_task_free() call.\n\nWhen complete() is called, the upper layer may free the sas_task. As such,\nwe should not touch the associated sas_task afterwards, but we do so in the\npm8001_ccb_task_free() call.\n\nFix by swapping the complete() and pm8001_ccb_task_free() calls ordering."
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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: pm8001: Corrige el use-after-free para sas_task SSP/STP abortado. Actualmente, puede ocurrir un use-after-free si la capa superior cancela una sas_task antes de que manejemos el Finalizaci\u00f3n de E/S en mpi_ssp_completion() o mpi_sata_completion(). En este caso, los siguientes son los dos pasos para manejar esas finalizaciones de E/S: - Llamar a complete() para informar al controlador de la capa superior de la finalizaci\u00f3n de la E/S. - Liberar los recursos del controlador asociados con sas_task en la llamada pm8001_ccb_task_free(). Cuando se llama a complete(), la capa superior puede liberar sas_task. Como tal, no debemos tocar el sas_task asociado despu\u00e9s, pero lo hacemos en la llamada pm8001_ccb_task_free(). Se soluciona intercambiando el orden de las llamadas complete() y pm8001_ccb_task_free()."
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      "title": "kernel: scsi: pm8001: Fix use-after-free for aborted SSP/STP sas_task",
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      "status": "interim",
      "title": "SUSE CVE CVE-2022-48792",
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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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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.