{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-49371", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:08:31.555Z", "datePublished": "2025-02-26T02:11:13.652Z", "dateUpdated": "2026-05-11T18:58:23.689Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T18:58:23.689Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndriver core: fix deadlock in __device_attach\n\nIn __device_attach function, The lock holding logic is as follows:\n...\n__device_attach\ndevice_lock(dev) // get lock dev\n async_schedule_dev(__device_attach_async_helper, dev); // func\n async_schedule_node\n async_schedule_node_domain(func)\n entry = kzalloc(sizeof(struct async_entry), GFP_ATOMIC);\n\t/* when fail or work limit, sync to execute func, but\n\t __device_attach_async_helper will get lock dev as\n\t well, which will lead to A-A deadlock. */\n\tif (!entry || atomic_read(&entry_count) > MAX_WORK) {\n\t func;\n\telse\n\t queue_work_node(node, system_unbound_wq, &entry->work)\n device_unlock(dev)\n\nAs shown above, when it is allowed to do async probes, because of\nout of memory or work limit, async work is not allowed, to do\nsync execute instead. it will lead to A-A deadlock because of\n__device_attach_async_helper getting lock dev.\n\nTo fix the deadlock, move the async_schedule_dev outside device_lock,\nas we can see, in async_schedule_node_domain, the parameter of\nqueue_work_node is system_unbound_wq, so it can accept concurrent\noperations. which will also not change the code logic, and will\nnot lead to deadlock." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/base/dd.c" ], "versions": [ { "version": "765230b5f084863183aa8adb3405ab3f32c0b16e", "lessThan": "593b595332bd2d65e1a5c1ae7897996c157f5468", "status": "affected", "versionType": "git" }, { "version": "765230b5f084863183aa8adb3405ab3f32c0b16e", "lessThan": "36ee9ffca8ef56c302f2855c4a5fccf61c0c1ada", "status": "affected", "versionType": "git" }, { "version": "765230b5f084863183aa8adb3405ab3f32c0b16e", "lessThan": "df6de52b80aa3b46f5ac804412355ffe2e1df93e", "status": "affected", "versionType": "git" }, { "version": "765230b5f084863183aa8adb3405ab3f32c0b16e", "lessThan": "d53a227bfcd5160ce1b61d9954901968a20651e7", "status": "affected", "versionType": "git" }, { "version": "765230b5f084863183aa8adb3405ab3f32c0b16e", "lessThan": "34fdd9b7def9d2fcb71bb7b0bc4848dd7313767e", "status": "affected", "versionType": "git" }, { "version": "765230b5f084863183aa8adb3405ab3f32c0b16e", "lessThan": "b232b02bf3c205b13a26dcec08e53baddd8e59ed", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/base/dd.c" ], "versions": [ { "version": "4.2", "status": "affected" }, { "version": "0", "lessThan": "4.2", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.198", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.122", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.47", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.17.15", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.18.4", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.4.198" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.10.122" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.15.47" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.17.15" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.18.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.19" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/593b595332bd2d65e1a5c1ae7897996c157f5468" }, { "url": "https://git.kernel.org/stable/c/36ee9ffca8ef56c302f2855c4a5fccf61c0c1ada" }, { "url": "https://git.kernel.org/stable/c/df6de52b80aa3b46f5ac804412355ffe2e1df93e" }, { "url": "https://git.kernel.org/stable/c/d53a227bfcd5160ce1b61d9954901968a20651e7" }, { "url": "https://git.kernel.org/stable/c/34fdd9b7def9d2fcb71bb7b0bc4848dd7313767e" }, { "url": "https://git.kernel.org/stable/c/b232b02bf3c205b13a26dcec08e53baddd8e59ed" } ], "title": "driver core: fix deadlock in __device_attach", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2022-49371", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T19:42:17.592122Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-667", "description": "CWE-667 Improper Locking" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T19:46:52.917Z" } } ] } }