CVE-2024-50159

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2024-50159", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-10-21T19:36:19.961Z", "datePublished": "2024-11-07T09:31:36.167Z", "dateUpdated": "2026-08-05T11:42:09.468Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:42:09.468Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Fix the double free in scmi_debugfs_common_setup()\n\nClang static checker(scan-build) throws below warning\uff1a\n | drivers/firmware/arm_scmi/driver.c:line 2915, column 2\n | Attempt to free released memory.\n\nWhen devm_add_action_or_reset() fails, scmi_debugfs_common_cleanup()\nwill run twice which causes double free of 'dbg->name'.\n\nRemove the redundant scmi_debugfs_common_cleanup() to fix this problem."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The defect lives in the `arm-scmi` platform driver's `scmi_probe()` debugfs setup path, which is only executed during local device/driver binding \u2014 there is no network, packet, or remote-peer input anywhere on the path. Reaching it requires local system context (boot, module load, or deferred-probe retry), so Local is the appropriate vector.\nAC:H - The double free is only reached when `__devres_alloc_node()` returns NULL, i.e. a small GFP_KERNEL allocation fails at one exact instant during a one-shot probe; small GFP_KERNEL allocations reclaim or OOM-kill rather than fail, and `.suppress_bind_attrs = true` removes any sysfs re-probe retry loop. The attacker cannot initiate the probe nor steer that specific allocation, so success depends on conditions genuinely outside their control, compounded by the non-default `CONFIG_ARM_SCMI_RAW_MODE_SUPPORT`/`CONFIG_ARM_SCMI_DEBUG_COUNTERS` requirement.\nPR:L - The only attacker-influenceable ingredient is system memory pressure, which an ordinary unprivileged local process can generate without any capability, and SCMI probe can occur after userspace is up via udev-driven module load or deferred-probe retry. Choosing the higher-severity option over PR:H, which would otherwise apply since deliberately initiating a probe needs CAP_SYS_MODULE.\nUI:N - Driver probe and the debugfs setup run autonomously from the DT/platform-device match; no victim must open a file, mount a filesystem, or take any other action. The error path executes purely as a consequence of the allocation failure.\nS:U - The double free corrupts the kernel's own slab allocator and dentry cache within the same kernel security authority. No hypervisor, IOMMU, container, or sandbox boundary is crossed.\nC:H - A slab double free lets the same object be handed out to two independent allocations, and the redundant `debugfs_remove_recursive()` additionally dereferences a released dentry \u2014 both are read primitives over attacker-unrelated kernel objects. Consistent with treating use-after-free/double-free as enabling arbitrary kernel memory disclosure.\nI:H - Freeing `dbg->name` and `dbg->type` twice corrupts the SLUB freelist, the standard stepping stone to aliased-object and arbitrary-write primitives, and the stale dentry is written through by the second recursive removal. Memory corruption of this class is scored as enabling control-flow hijacking.\nA:H - With freelist hardening the second `kfree()` raises a BUG/panic outright; without it, freelist corruption and the dentry use-after-free reliably lead to an oops during subsequent allocation or dcache activity. Either outcome is a full kernel crash."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/firmware/arm_scmi/driver.c"], "versions": [{"version": "c3d4aed763ce4a39f8ed36c7b7cd9a6a35971329", "lessThan": "6d91d07913aee90556362d648d6a28a1eda419dc", "status": "affected", "versionType": "git"}, {"version": "c3d4aed763ce4a39f8ed36c7b7cd9a6a35971329", "lessThan": "fb324fdaf546bf14bc4c17e0037bca6cb952b121", "status": "affected", "versionType": "git"}, {"version": "c3d4aed763ce4a39f8ed36c7b7cd9a6a35971329", "lessThan": "39b13dce1a91cdfc3bec9238f9e89094551bd428", "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/firmware/arm_scmi/driver.c"], "versions": [{"version": "6.3", "status": "affected"}, {"version": "0", "lessThan": "6.3", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.59", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11.6", "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": "6.3", "versionEndExcluding": "6.6.59"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.11.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.12"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6d91d07913aee90556362d648d6a28a1eda419dc"}, {"url": "https://git.kernel.org/stable/c/fb324fdaf546bf14bc4c17e0037bca6cb952b121"}, {"url": "https://git.kernel.org/stable/c/39b13dce1a91cdfc3bec9238f9e89094551bd428"}], "title": "firmware: arm_scmi: Fix the double free in scmi_debugfs_common_setup()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/firmware/arm_scmi/driver.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "6d91d07913aee90556362d648d6a28a1eda419dc", "status": "affected", "version": "c3d4aed763ce4a39f8ed36c7b7cd9a6a35971329", "versionType": "git"}, {"lessThan": "fb324fdaf546bf14bc4c17e0037bca6cb952b121", "status": "affected", "version": "c3d4aed763ce4a39f8ed36c7b7cd9a6a35971329", "versionType": "git"}, {"lessThan": "39b13dce1a91cdfc3bec9238f9e89094551bd428", "status": "affected", "version": "c3d4aed763ce4a39f8ed36c7b7cd9a6a35971329", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/firmware/arm_scmi/driver.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.3"}, {"lessThan": "6.3", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.59", "versionType": "semver"}, {"lessThanOrEqual": "6.11.*", "status": "unaffected", "version": "6.11.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.12", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FE6BAC9A-DCE6-4768-8A7A-24AA8A77B015", "versionEndExcluding": "6.6.59", "versionStartIncluding": "6.3", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E4486B12-007B-4794-9857-F07145637AA1", "versionEndExcluding": "6.11.6", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*", "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*", "matchCriteriaId": "925478D0-3E3D-4E6F-ACD5-09F28D5DF82C", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*", "matchCriteriaId": "3C95E234-D335-4B6C-96BF-E2CEBD8654ED", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Fix the double free in scmi_debugfs_common_setup()\n\nClang static checker(scan-build) throws below warning\uff1a\n | drivers/firmware/arm_scmi/driver.c:line 2915, column 2\n | Attempt to free released memory.\n\nWhen devm_add_action_or_reset() fails, scmi_debugfs_common_cleanup()\nwill run twice which causes double free of 'dbg->name'.\n\nRemove the redundant scmi_debugfs_common_cleanup() to fix this problem."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: firmware: arm_scmi: Se corrige la doble liberaci\u00f3n en scmi_debugfs_common_setup() El verificador est\u00e1tico de Clang (scan-build) arroja la siguiente advertencia: | drivers/firmware/arm_scmi/driver.c:line 2915, column 2 | Intenta liberar la memoria liberada. Cuando devm_add_action_or_reset() falla, scmi_debugfs_common_cleanup() se ejecutar\u00e1 dos veces, lo que provoca una doble liberaci\u00f3n de 'dbg->name'. Elimina el scmi_debugfs_common_cleanup() redundante para solucionar este problema."}], "id": "CVE-2024-50159", "lastModified": "2026-08-04T11:21:26.827", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-11-07T10:15:07.333", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/39b13dce1a91cdfc3bec9238f9e89094551bd428"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6d91d07913aee90556362d648d6a28a1eda419dc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fb324fdaf546bf14bc4c17e0037bca6cb952b121"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-415"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: firmware: arm_scmi: Fix the double free in scmi_debugfs_common_setup()", "id": "2324316", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2324316"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-415", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nfirmware: arm_scmi: Fix the double free in scmi_debugfs_common_setup()\nClang static checker(scan-build) throws below warning\uff1a\n| drivers/firmware/arm_scmi/driver.c:line 2915, column 2\n| Attempt to free released memory.\nWhen devm_add_action_or_reset() fails, scmi_debugfs_common_cleanup()\nwill run twice which causes double free of 'dbg->name'.\nRemove the redundant scmi_debugfs_common_cleanup() to fix this problem."], "name": "CVE-2024-50159", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-11-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-50159\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-50159\nhttps://lore.kernel.org/linux-cve-announce/2024110747-CVE-2024-50159-3dec@gregkh/T"], "threat_severity": "Moderate"}

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