270 lines
13 KiB
JSON
270 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2022-48791",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2024-07-16T11:38:08.893Z",
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"datePublished": "2024-07-16T11:43:47.211Z",
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"dateUpdated": "2026-08-05T08:52:21.770Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T08:52:21.770Z"
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},
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"descriptions": [
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{
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"lang": "en",
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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->task\nif the TMF times out - the I/O completion handler does nothing if this\npointer is cleared."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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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 → lldd_abort_task/query_task/lu_reset → 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->task 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->task 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->task_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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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/scsi/pm8001/pm8001_sas.c"
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],
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"versions": [
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{
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"version": "968ee9176a4489ce6d5ee54ff88dadfbff9b95f4",
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"lessThan": "d872e7b5fe38f325f5206b6872746fa02c2b4819",
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"version": "d712d3fb484b7fa8d1d57e9ca6f134bb9d8c18b1",
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"lessThan": "3c334cdfd94945b8edb94022a0371a8665b17366",
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"versionType": "git"
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},
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{
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"version": "fa3c19ceaa8b4b7c29d710c2c407df57d256a6c5",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "5.10.61",
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"lessThan": "5.10.102",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "5.13.13",
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"lessThan": "5.14",
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"status": "affected",
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/scsi/pm8001/pm8001_sas.c"
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],
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"versions": [
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{
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"version": "5.14",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "5.14",
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"status": "unaffected",
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},
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{
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"version": "5.10.102",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.25",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.16.11",
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"lessThanOrEqual": "5.16.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.17",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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}
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],
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"title": "scsi: pm8001: Fix use-after-free for aborted TMF sas_task",
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"type": "ssvc",
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"content": {
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"id": "CVE-2022-48791",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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"title": "CISA ADP Vulnrichment",
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