CVE-2026-93273

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93273", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-17T16:02:15.098Z", "datePublished": "2026-09-24T15:52:15.213Z", "dateUpdated": "2026-10-19T09:08:27.727Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:08:27.727Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: tps6594: Fix device node reference leaks in multiphase loop\n\nIn tps6594_regulator_probe(), the multi-phase configuration loop calls\nof_find_node_by_name() to find buck nodes by name, and of_get_parent()\ntwice to navigate to the PMIC parent node. None of the acquired node\nreferences (np, intermediate parent, np_pmic_parent) are ever released\nvia of_node_put(), causing a reference leak on every loop iteration.\n\nAdditionally, of_find_node_by_name() can return NULL, but the result was\nimmediately passed to of_node_full_name() and of_get_parent() without a\nNULL check, which could lead to a NULL pointer dereference.\n\nFix this by:\n- Adding a NULL check for np after of_find_node_by_name()\n- Storing the intermediate parent node in a local variable np_parent\n- Calling of_node_put() on np, np_parent and np_pmic_parent at the\n end of each loop iteration"}], "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": "f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8", "lessThan": "28f70e0aa767a8f022c70ed75ecef227dc668121", "status": "affected", "versionType": "git"}, {"version": "f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8", "lessThan": "4a672bff99f6b58dde419fd12b3a53da137f032d", "status": "affected", "versionType": "git"}, {"version": "f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8", "lessThan": "68ce4f8223b78f8616ec7f4a02c38988eae627d2", "status": "affected", "versionType": "git"}, {"version": "f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8", "lessThan": "fceac25487b21d6db940d2aed368e465d89cd1f4", "status": "affected", "versionType": "git"}, {"version": "f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8", "lessThan": "7fd28093b3effc4f92566466df364622830ec608", "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/tps6594-regulator.c"], "versions": [{"version": "6.5", "status": "affected"}, {"version": "0", "lessThan": "6.5", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "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": "6.5", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/28f70e0aa767a8f022c70ed75ecef227dc668121"}, {"url": "https://git.kernel.org/stable/c/4a672bff99f6b58dde419fd12b3a53da137f032d"}, {"url": "https://git.kernel.org/stable/c/68ce4f8223b78f8616ec7f4a02c38988eae627d2"}, {"url": "https://git.kernel.org/stable/c/fceac25487b21d6db940d2aed368e465d89cd1f4"}, {"url": "https://git.kernel.org/stable/c/7fd28093b3effc4f92566466df364622830ec608"}], "title": "regulator: tps6594: Fix device node reference leaks in multiphase loop", "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": "28f70e0aa767a8f022c70ed75ecef227dc668121", "status": "affected", "version": "f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8", "versionType": "git"}, {"lessThan": "4a672bff99f6b58dde419fd12b3a53da137f032d", "status": "affected", "version": "f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8", "versionType": "git"}, {"lessThan": "68ce4f8223b78f8616ec7f4a02c38988eae627d2", "status": "affected", "version": "f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8", "versionType": "git"}, {"lessThan": "fceac25487b21d6db940d2aed368e465d89cd1f4", "status": "affected", "version": "f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8", "versionType": "git"}, {"lessThan": "7fd28093b3effc4f92566466df364622830ec608", "status": "affected", "version": "f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8", "versionType": "git"}]}, {"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": "6.5"}, {"lessThan": "6.5", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.110", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.52", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "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: Fix device node reference leaks in multiphase loop\n\nIn tps6594_regulator_probe(), the multi-phase configuration loop calls\nof_find_node_by_name() to find buck nodes by name, and of_get_parent()\ntwice to navigate to the PMIC parent node. None of the acquired node\nreferences (np, intermediate parent, np_pmic_parent) are ever released\nvia of_node_put(), causing a reference leak on every loop iteration.\n\nAdditionally, of_find_node_by_name() can return NULL, but the result was\nimmediately passed to of_node_full_name() and of_get_parent() without a\nNULL check, which could lead to a NULL pointer dereference.\n\nFix this by:\n- Adding a NULL check for np after of_find_node_by_name()\n- Storing the intermediate parent node in a local variable np_parent\n- Calling of_node_put() on np, np_parent and np_pmic_parent at the\n end of each loop iteration"}], "id": "CVE-2026-93273", "lastModified": "2026-10-19T10:17:18.793", "metrics": {}, "published": "2026-09-24T16:17:24.400", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/28f70e0aa767a8f022c70ed75ecef227dc668121"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4a672bff99f6b58dde419fd12b3a53da137f032d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/68ce4f8223b78f8616ec7f4a02c38988eae627d2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7fd28093b3effc4f92566466df364622830ec608"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fceac25487b21d6db940d2aed368e465d89cd1f4"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: regulator: tps6594: Fix device node reference leaks in multiphase loop", "id": "2540355", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2540355"}, "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": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nregulator: tps6594: Fix device node reference leaks in multiphase loop\nIn tps6594_regulator_probe(), the multi-phase configuration loop calls\nof_find_node_by_name() to find buck nodes by name, and of_get_parent()\ntwice to navigate to the PMIC parent node. None of the acquired node\nreferences (np, intermediate parent, np_pmic_parent) are ever released\nvia of_node_put(), causing a reference leak on every loop iteration.\nAdditionally, of_find_node_by_name() can return NULL, but the result was\nimmediately passed to of_node_full_name() and of_get_parent() without a\nNULL check, which could lead to a NULL pointer dereference.\nFix this by:\n- Adding a NULL check for np after of_find_node_by_name()\n- Storing the intermediate parent node in a local variable np_parent\n- Calling of_node_put() on np, np_parent and np_pmic_parent at the\nend of each loop iteration", "A flaw was found in the Linux kernel's TPS6594 regulator driver. When configuring multi-phase regulators during device initialization, the driver fails to verify whether a device node exists before accessing it and fails to properly release acquired node references. A local attacker could exploit this vulnerability to trigger a NULL pointer dereference, causing a kernel crash that results in a Denial of Service (DoS)."], "name": "CVE-2026-93273", "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"}], "public_date": "2026-09-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-93273\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-93273\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93273.mbox"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8,28f70e0aa767a8f022c70ed75ecef227dc668121)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8,4a672bff99f6b58dde419fd12b3a53da137f032d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8,68ce4f8223b78f8616ec7f4a02c38988eae627d2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8,fceac25487b21d6db940d2aed368e465d89cd1f4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8,7fd28093b3effc4f92566466df364622830ec608)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.5"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.5)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.157,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.110,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.52,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-25T06:30:06.210049+00:00", "updated": "2026-10-01T20:15:12.386447+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}