CVE-2022-48791 (GCVE-0-2022-48791)
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 TMF sas_task
Summary
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.
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:
968ee9176a4489ce6d5ee54ff88dadfbff9b95f4 , < d872e7b5fe38f325f5206b6872746fa02c2b4819
(git)
Affected: d712d3fb484b7fa8d1d57e9ca6f134bb9d8c18b1 , < 3c334cdfd94945b8edb94022a0371a8665b17366 (git) Affected: d712d3fb484b7fa8d1d57e9ca6f134bb9d8c18b1 , < 510b21442c3a2e3ecc071ba3e666b320e7acdd61 (git) Affected: d712d3fb484b7fa8d1d57e9ca6f134bb9d8c18b1 , < 61f162aa4381845acbdc7f2be4dfb694d027c018 (git) Affected: fa3c19ceaa8b4b7c29d710c2c407df57d256a6c5 (git) Affected: 5.10.61 , < 5.10.102 (semver) Affected: 5.13.13 , < 5.14 (semver) |
guessed | |
| Linux | Linux |
Affected:
5.14
Unaffected: 0 , < 5.14 (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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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"url": "https://git.kernel.org/stable/c/510b21442c3a2e3ecc071ba3e666b320e7acdd61"
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"url": "https://git.kernel.org/stable/c/61f162aa4381845acbdc7f2be4dfb694d027c018"
}
],
"title": "CVE Program Container"
},
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"metrics": [
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"content": {
"id": "CVE-2022-48791",
"options": [
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"Exploitation": "none"
},
{
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},
{
"Technical Impact": "partial"
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],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T16:59:35.678672Z",
"version": "2.0.3"
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
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"title": "CISA ADP Vulnrichment"
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"product": "Linux",
"programFiles": [
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
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"versionType": "git"
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"status": "affected",
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{
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"version": "fa3c19ceaa8b4b7c29d710c2c407df57d256a6c5",
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{
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"status": "affected",
"version": "5.10.61",
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{
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"version": "5.13.13",
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"status": "unaffected",
"version": "5.15.25",
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{
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"status": "unaffected",
"version": "5.16.11",
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},
{
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"status": "unaffected",
"version": "5.17",
"versionType": "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 TMF sas_task\n\nCurrently a use-after-free may occur if a TMF sas_task is aborted before we\nhandle the IO completion in mpi_ssp_completion(). The abort occurs due to\ntimeout.\n\nWhen the timeout occurs, the SAS_TASK_STATE_ABORTED flag is set and the\nsas_task is freed in pm8001_exec_internal_tmf_task().\n\nHowever, if the I/O completion occurs later, the I/O completion still\nthinks that the sas_task is available. Fix this by clearing the ccb-\u003etask\nif the TMF times out - the I/O completion handler does nothing if this\npointer is cleared."
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"value": "AV:L - The UAF is in the pm8001 PCIe SAS HBA driver and is reached via the local SCSI/block I/O and error-handling path (libsas EH \u2192 lldd_abort_task/query_task/lu_reset \u2192 pm8001_issue_ssp_tmf), not via network packets or physical device attachment.\nAC:L - An attacker who can submit I/O can drive SCSI EH into the TMF path; when the target/link is unresponsive (the common EH case), the 20s TMF timeout frees the sas_task while ccb-\u003etask remains set, leaving a wide, reliable window for the later mpi_ssp_completion UAF.\nPR:L - Triggering requires only unprivileged local access to a block/SCSI device backed by the pm8001 HBA (e.g., disk-group or container volume access), not real root or init-namespace admin privileges.\nUI:N - No victim action is required; the attacker initiates I/O that leads to EH/TMF and the subsequent completion UAF without cooperation from another user.\nS:U - This is a standard in-kernel use-after-free within the host OS authority and does not cross a VM, IOMMU, or other security boundary.\nC:H - mpi_ssp_completion loads the dangling ccb-\u003etask and reads fields from the freed sas_task, so a UAF gives an attacker-controlled object and a high-impact information-disclosure primitive.\nI:H - The completion path writes into the freed sas_task (task_status/state flags) and may invoke t-\u003etask_done(t), yielding a classic heap UAF write/control-flow hijack primitive for arbitrary code execution.\nA:H - Use of the freed sas_task in interrupt/completion context can oops/panic the kernel even without a full exploit, so availability impact is high."
}
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"datePublished": "2024-07-16T11:43:47.211Z",
"dateReserved": "2024-07-16T11:38:08.893Z",
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}
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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.
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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.
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