{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-50300", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-10-21T19:36:19.987Z", "datePublished": "2024-11-19T01:30:48.650Z", "dateUpdated": "2026-08-05T11:43:13.349Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:43:13.349Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: rtq2208: Fix uninitialized use of regulator_config\n\nFix rtq2208 driver uninitialized use to cause kernel error." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The defect lives in `rtq2208_probe()`, an I2C client probe routine reached only through the local device/driver model (boot-time DT match, module load, or sysfs bind), with no network- or adjacent-facing consumer of this code.\nAC:L - The uninitialized `cfg` is consumed unconditionally on every probe with no race window, no timing dependency, and no need to defeat any layout the attacker cannot influence — the reporter observed the resulting kernel error deterministically on affected hardware.\nPR:L - No credential check guards the path; an unprivileged local context on an affected board is exposed to the corrupted regulator state, and the resulting wild-pointer-backed constraints are readable through unprivileged `/sys/class/regulator/*` attributes.\nUI:N - Probe runs automatically when the RTQ2208 is matched, so no action by any other user or victim is required for the uninitialized config to be consumed.\nS:U - The corruption stays inside the kernel's own memory and security authority — no hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - `rdev->constraints` is `kmemdup()`ed from the uninitialized `init_data` pointer and its fields (including a `name` char pointer) are exported via world-readable regulator sysfs attributes, and the wild `rdev->regmap` makes register reads target arbitrary kernel addresses, yielding kernel memory disclosure.\nI:H - `init_data->regulator_init(rdev->reg_data)` is an indirect call through a function pointer sourced from uninitialized stack memory, and the garbage `regmap`/`ena_gpiod` drive `regmap_update_bits()` writes and `of_node_get()` refcount increments at attacker-uncontrolled kernel addresses — a control-flow hijack and arbitrary-write primitive.\nA:H - Dereferencing the uninitialized `regmap`, `init_data`, and `ena_gpiod` pointers oopses the kernel during probe, which on affected boards means a panic in the power-management path and a system that fails to boot." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/regulator/rtq2208-regulator.c" ], "versions": [ { "version": "85a11f55621a0c18b22b43ab4219450ac1d19386", "lessThan": "9b7c0405af667857b3ad24a7ef6723f5475a9e43", "status": "affected", "versionType": "git" }, { "version": "85a11f55621a0c18b22b43ab4219450ac1d19386", "lessThan": "64fbab934ae59be9caffc80a75450984b1e108e0", "status": "affected", "versionType": "git" }, { "version": "85a11f55621a0c18b22b43ab4219450ac1d19386", "lessThan": "2feb023110843acce790e9089e72e9a9503d9fa5", "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/regulator/rtq2208-regulator.c" ], "versions": [ { "version": "6.6", "status": "affected" }, { "version": "0", "lessThan": "6.6", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.61", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11.8", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12", "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": "6.6", "versionEndExcluding": "6.6.61" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.11.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.12" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/9b7c0405af667857b3ad24a7ef6723f5475a9e43" }, { "url": "https://git.kernel.org/stable/c/64fbab934ae59be9caffc80a75450984b1e108e0" }, { "url": "https://git.kernel.org/stable/c/2feb023110843acce790e9089e72e9a9503d9fa5" } ], "title": "regulator: rtq2208: Fix uninitialized use of regulator_config", "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-2024-50300", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T20:13:54.439730Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-908", "description": "CWE-908 Use of Uninitialized Resource" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T20:17:19.962Z" } } ] } }