CVE-2026-99020

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-99020", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.386Z", "datePublished": "2026-10-23T12:20:57.162Z", "dateUpdated": "2026-10-23T12:20:57.162Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-23T12:20:57.162Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: tps6594-regulator: Fix n_linear_ranges for TPS65224 BUCK2-4\n\nThe TPS65224 BUCK2, BUCK3 and BUCK4 descriptors pass 4 as\nn_linear_ranges, but tps65224_bucks_2_3_4_ranges[] only has two\nentries, covering selectors 0x00-0x45.\n\nThe linear range helpers loop over n_linear_ranges entries, so any\nlookup of a selector above 0x45 reads past the end of the array and\ntreats whatever follows it as two more ranges. This happens on the\nnormal registration path when the core checks the voltage constraints\nagainst every selector. TPS652G1 uses the same descriptors and is\naffected too.\n\nUse ARRAY_SIZE() so the count always matches the table."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/regulator/tps6594-regulator.c"], "versions": [{"version": "54308f24ce510a3ba1bf2e0ebc8b9c8a577b3c3b", "lessThan": "1ea151615a82fd94f25e38b2cc7eeac49112508b", "status": "affected", "versionType": "git"}, {"version": "00c826525fbae0230f6c3e9879e56d50267deb42", "lessThan": "66b7da589b2ce44a02b8387c6160e9254685f34f", "status": "affected", "versionType": "git"}, {"version": "00c826525fbae0230f6c3e9879e56d50267deb42", "lessThan": "f6fbe9c6b39968a7696b9badef4bc29331a6376a", "status": "affected", "versionType": "git"}, {"version": "00c826525fbae0230f6c3e9879e56d50267deb42", "lessThan": "f3423b56be12208a393274afb9a5e3d67fc58ce3", "status": "affected", "versionType": "git"}, {"version": "00c826525fbae0230f6c3e9879e56d50267deb42", "lessThan": "2f15518682c779b1014552cb2ccb4a2052f85f27", "status": "affected", "versionType": "git"}, {"version": "6.6.157", "lessThan": "6.6.160", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/regulator/tps6594-regulator.c"], "versions": [{"version": "6.10", "status": "affected"}, {"version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.113", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.57", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.11", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "6.6.157", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.12.113"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.18.57"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "7.2.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/1ea151615a82fd94f25e38b2cc7eeac49112508b"}, {"url": "https://git.kernel.org/stable/c/66b7da589b2ce44a02b8387c6160e9254685f34f"}, {"url": "https://git.kernel.org/stable/c/f6fbe9c6b39968a7696b9badef4bc29331a6376a"}, {"url": "https://git.kernel.org/stable/c/f3423b56be12208a393274afb9a5e3d67fc58ce3"}, {"url": "https://git.kernel.org/stable/c/2f15518682c779b1014552cb2ccb4a2052f85f27"}], "title": "regulator: tps6594-regulator: Fix n_linear_ranges for TPS65224 BUCK2-4", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/regulator/tps6594-regulator.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "1ea151615a82fd94f25e38b2cc7eeac49112508b", "status": "affected", "version": "54308f24ce510a3ba1bf2e0ebc8b9c8a577b3c3b", "versionType": "git"}, {"lessThan": "66b7da589b2ce44a02b8387c6160e9254685f34f", "status": "affected", "version": "00c826525fbae0230f6c3e9879e56d50267deb42", "versionType": "git"}, {"lessThan": "f6fbe9c6b39968a7696b9badef4bc29331a6376a", "status": "affected", "version": "00c826525fbae0230f6c3e9879e56d50267deb42", "versionType": "git"}, {"lessThan": "f3423b56be12208a393274afb9a5e3d67fc58ce3", "status": "affected", "version": "00c826525fbae0230f6c3e9879e56d50267deb42", "versionType": "git"}, {"lessThan": "2f15518682c779b1014552cb2ccb4a2052f85f27", "status": "affected", "version": "00c826525fbae0230f6c3e9879e56d50267deb42", "versionType": "git"}, {"lessThan": "6.6.160", "status": "affected", "version": "6.6.157", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/regulator/tps6594-regulator.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.10"}, {"lessThan": "6.10", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.113", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.57", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.11", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: tps6594-regulator: Fix n_linear_ranges for TPS65224 BUCK2-4\n\nThe TPS65224 BUCK2, BUCK3 and BUCK4 descriptors pass 4 as\nn_linear_ranges, but tps65224_bucks_2_3_4_ranges[] only has two\nentries, covering selectors 0x00-0x45.\n\nThe linear range helpers loop over n_linear_ranges entries, so any\nlookup of a selector above 0x45 reads past the end of the array and\ntreats whatever follows it as two more ranges. This happens on the\nnormal registration path when the core checks the voltage constraints\nagainst every selector. TPS652G1 uses the same descriptors and is\naffected too.\n\nUse ARRAY_SIZE() so the count always matches the table."}], "id": "CVE-2026-99020", "lastModified": "2026-10-23T13:17:24.897", "metrics": {}, "published": "2026-10-23T13:17:24.897", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1ea151615a82fd94f25e38b2cc7eeac49112508b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2f15518682c779b1014552cb2ccb4a2052f85f27"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/66b7da589b2ce44a02b8387c6160e9254685f34f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f3423b56be12208a393274afb9a5e3d67fc58ce3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f6fbe9c6b39968a7696b9badef4bc29331a6376a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: kernel: Denial of Service via out-of-bounds read in TPS6594 regulator driver", "id": "2559722", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2559722"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nregulator: tps6594-regulator: Fix n_linear_ranges for TPS65224 BUCK2-4\nThe TPS65224 BUCK2, BUCK3 and BUCK4 descriptors pass 4 as\nn_linear_ranges, but tps65224_bucks_2_3_4_ranges[] only has two\nentries, covering selectors 0x00-0x45.\nThe linear range helpers loop over n_linear_ranges entries, so any\nlookup of a selector above 0x45 reads past the end of the array and\ntreats whatever follows it as two more ranges. This happens on the\nnormal registration path when the core checks the voltage constraints\nagainst every selector. TPS652G1 uses the same descriptors and is\naffected too.\nUse ARRAY_SIZE() so the count always matches the table.", "A flaw was found in the Linux kernel's TPS6594 regulator driver. This flaw allows a local user or system process triggering device initialization to cause a Denial of Service (DoS) via an out-of-bounds memory read. The driver specifies more voltage range entries than exist in the descriptor table. When the kernel checks voltage constraints during device registration, it reads past the array boundaries, leading to potential system instability or a kernel crash."], "name": "CVE-2026-99020", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"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"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:5", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-10", "product_name": "Red Hat OpenShift Container Platform 5"}, {"cpe": "cpe:/a:redhat:openshift:5", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 5"}], "public_date": "2026-10-23T12:20:57Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-99020\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-99020\nhttps://git.kernel.org/stable/c/1ea151615a82fd94f25e38b2cc7eeac49112508b\nhttps://git.kernel.org/stable/c/2f15518682c779b1014552cb2ccb4a2052f85f27\nhttps://git.kernel.org/stable/c/66b7da589b2ce44a02b8387c6160e9254685f34f\nhttps://git.kernel.org/stable/c/f3423b56be12208a393274afb9a5e3d67fc58ce3\nhttps://git.kernel.org/stable/c/f6fbe9c6b39968a7696b9badef4bc29331a6376a"], "statement": "This vulnerability is rated as having a Moderate impact because exploitation is restricted to a local denial of service and requires systems equipped with specific Texas Instruments power management integrated circuit hardware. Standard enterprise deployments of Red Hat Enterprise Linux do not run on platforms containing these PMICs, preventing the affected registration logic from executing. In addition, triggering the driver registration path locally requires elevated administrative access, containing the blast radius to a localized system crash.", "threat_severity": "Moderate"}

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