CVE-2024-50027

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no remote peer parses any of this data.\nAC:L - The attacker drives the surviving side of the race itself \u2014 a tight loop of `THERMAL_GENL_CMD_TZ_GET_TEMP`/`TZ_GET_TRIP` pins the zone with `get_device()` while unregistration proceeds \u2014 and the freed window spans `device_del()` teardown, a netlink multicast delete notification and an unbounded `wait_for_completion()`, which is wide enough to reliably reclaim the 48-byte `tzp` from the heavily-trafficked kmalloc-64 cache; the attempt is repeatable at will.\nPR:L - None of the thermal genl ops set `GENL_ADMIN_PERM` (`thermal_genl_ops[]`), and `thermal_zone_get_by_id()` performs no capability check, so an ordinary unprivileged local user obtains and holds the zone reference; the `tzp` sysfs show handlers are likewise world-readable at 0444/0644.\nUI:N - The attacker's netlink polling loop needs no cooperation from any other user, and the unregistration it races is ordinary system activity (charger/battery power-supply removal, transceiver or CPU-package zone teardown, driver rebind) rather than an action the attacker must induce a victim to perform.\nS:U - The corrupted memory is kernel slab memory managed by the same kernel security authority; no hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - `thermal_zone_get_slope()`/`thermal_zone_get_offset()` and the power-allocator PID code read the freed `tzp`, and those values propagate into the temperature returned over netlink and sysfs, disclosing whatever kernel object has since been allocated into the reclaimed kmalloc-64 slot; as with any UAF the stale pointer generalises into an arbitrary-read primitive once the attacker controls the reallocation.\nI:H - The dangling pointer is also written through \u2014 `estimate_pid_constants()`/`get_sustainable_power()` store into `tz->tzp->k_po`, `k_pu`, `k_i` and `sustainable_power`, and the `sustainable_power`/`k_*`/`slope`/`offset` sysfs store handlers assign directly through `tz->tzp` \u2014 giving a heap write into a reallocated, groomable kmalloc-64 object and thus corruption of adjacent kernel structures usable for control-flow hijack and privilege escalation.\nA:H - Dereferencing the freed `tzp` (plus the `def_governor` fallback entering `power_allocator_manage()` with `tz->governor_data` already NULLed) produces slab use-after-free corruption and oops/panic, and an unprivileged user can retry the race indefinitely."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/thermal/thermal_core.c"], "versions": [{"version": "3d439b1a2ad36c8b4ea151c8de25309d60d17407", "lessThan": "eabe285e1c629a719d6e68fc319939c63b83bf22", "status": "affected", "versionType": "git"}, {"version": "3d439b1a2ad36c8b4ea151c8de25309d60d17407", "lessThan": "bdb0d40507c85bee33c2a71fde7b2e857346f112", "status": "affected", "versionType": "git"}, {"version": "3d439b1a2ad36c8b4ea151c8de25309d60d17407", "lessThan": "827a07525c099f54d3b15110408824541ec66b3c", "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/thermal/thermal_core.c"], "versions": [{"version": "6.4", "status": "affected"}, {"version": "0", "lessThan": "6.4", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.60", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11.4", "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": "6.4", "versionEndExcluding": "6.6.60"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.11.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.12"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/eabe285e1c629a719d6e68fc319939c63b83bf22"}, {"url": "https://git.kernel.org/stable/c/bdb0d40507c85bee33c2a71fde7b2e857346f112"}, {"url": "https://git.kernel.org/stable/c/827a07525c099f54d3b15110408824541ec66b3c"}], "title": "thermal: core: Free tzp copy along with the thermal zone", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-50027", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-10-22T13:26:36.583525Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-22T13:28:46.345Z"}}]}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/thermal/thermal_core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "eabe285e1c629a719d6e68fc319939c63b83bf22", "status": "affected", "version": "3d439b1a2ad36c8b4ea151c8de25309d60d17407", "versionType": "git"}, {"lessThan": "bdb0d40507c85bee33c2a71fde7b2e857346f112", "status": "affected", "version": "3d439b1a2ad36c8b4ea151c8de25309d60d17407", "versionType": "git"}, {"lessThan": "827a07525c099f54d3b15110408824541ec66b3c", "status": "affected", "version": "3d439b1a2ad36c8b4ea151c8de25309d60d17407", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/thermal/thermal_core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.4"}, {"lessThan": "6.4", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.60", "versionType": "semver"}, {"lessThanOrEqual": "6.11.*", "status": "unaffected", "version": "6.11.4", "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": "A1A39D0B-911D-4BC7-B521-FC88BD5E23EF", "versionEndIncluding": "6.11.4", "versionStartIncluding": "6.4", "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}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nthermal: core: Free tzp copy along with the thermal zone\n\nThe object pointed to by tz->tzp may still be accessed after being\nfreed in thermal_zone_device_unregister(), so move the freeing of it\nto the point after the removal completion has been completed at which\nit cannot be accessed any more."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: thermal: core: copia libre de tzp junto con la zona t\u00e9rmica. A\u00fan se puede acceder al objeto al que apunta tz->tzp despu\u00e9s de liberarlo en thermal_zone_device_unregister(), por lo que debe mover su liberaci\u00f3n al punto despu\u00e9s de que se haya completado la eliminaci\u00f3n en el que ya no se pueda acceder a \u00e9l."}], "id": "CVE-2024-50027", "lastModified": "2026-08-04T11:21:08.637", "metrics": {"cvssMetricV31": [{"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": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-50027", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-10-22T13:26:36.583525Z", "version": "2.0.3"}}]}, "published": "2024-10-21T20:15:16.093", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/827a07525c099f54d3b15110408824541ec66b3c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bdb0d40507c85bee33c2a71fde7b2e857346f112"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/eabe285e1c629a719d6e68fc319939c63b83bf22"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2025:6966", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}, {"advisory": "RHSA-2025:6966", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}], "bugzilla": {"description": "kernel: thermal: core: Free tzp copy along with the thermal zone", "id": "2320635", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320635"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nthermal: core: Free tzp copy along with the thermal zone\nThe object pointed to by tz->tzp may still be accessed after being\nfreed in thermal_zone_device_unregister(), so move the freeing of it\nto the point after the removal completion has been completed at which\nit cannot be accessed any more."], "name": "CVE-2024-50027", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "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": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-50027\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-50027\nhttps://lore.kernel.org/linux-cve-announce/2024102130-CVE-2024-50027-91e1@gregkh/T"], "threat_severity": "Moderate"}

{}