CVE-2022-48792 (GCVE-0-2022-48792)
Vulnerability from cvelistv5 – Published: 2024-07-16 11:43 – Updated: 2026-08-05 08:52
VLAI
EPSS
VEX
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)
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
2 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 | |
| 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 |
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"id": "CVE-2022-48792",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T16:59:32.216009Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-09-11T12:42:21.634Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/scsi/pm8001/pm80xx_hwi.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "fe9ac3eaa2e387a5742b380b73a5a6bc237bf184",
"status": "affected",
"version": "869ddbdcae3b4fb83b99889abae31544c149b210",
"versionType": "git"
},
{
"lessThan": "d9d93f32534a0a80a1c26bdb0746d90a7b19c2c2",
"status": "affected",
"version": "869ddbdcae3b4fb83b99889abae31544c149b210",
"versionType": "git"
},
{
"lessThan": "f61f9fccb2cb4bb275674a79d638704db6bc2171",
"status": "affected",
"version": "869ddbdcae3b4fb83b99889abae31544c149b210",
"versionType": "git"
},
{
"lessThan": "df7abcaa1246e2537ab4016077b5443bb3c09378",
"status": "affected",
"version": "869ddbdcae3b4fb83b99889abae31544c149b210",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/scsi/pm8001/pm80xx_hwi.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.15"
},
{
"lessThan": "4.15",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.102",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.25",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.16.*",
"status": "unaffected",
"version": "5.16.11",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "5.17",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.102",
"versionStartIncluding": "4.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.25",
"versionStartIncluding": "4.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.16.11",
"versionStartIncluding": "4.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.17",
"versionStartIncluding": "4.15",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"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."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"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."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T08:52:22.849Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/fe9ac3eaa2e387a5742b380b73a5a6bc237bf184"
},
{
"url": "https://git.kernel.org/stable/c/d9d93f32534a0a80a1c26bdb0746d90a7b19c2c2"
},
{
"url": "https://git.kernel.org/stable/c/f61f9fccb2cb4bb275674a79d638704db6bc2171"
},
{
"url": "https://git.kernel.org/stable/c/df7abcaa1246e2537ab4016077b5443bb3c09378"
}
],
"title": "scsi: pm8001: Fix use-after-free for aborted SSP/STP sas_task",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2022-48792",
"datePublished": "2024-07-16T11:43:48.026Z",
"dateReserved": "2024-07-16T11:38:08.893Z",
"dateUpdated": "2026-08-05T08:52:22.849Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
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.