{"id":"CVE-2026-93273","state":"PUBLISHED","title":"regulator: tps6594: Fix device node reference leaks in multiphase loop","description":"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","publishedAt":"2026-09-24T15:52:15.213Z","updatedAt":"2026-10-19T09:08:27.727Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8","status":"affected","lessThan":"28f70e0aa767a8f022c70ed75ecef227dc668121","versionType":"git"},{"version":"f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8","status":"affected","lessThan":"4a672bff99f6b58dde419fd12b3a53da137f032d","versionType":"git"},{"version":"f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8","status":"affected","lessThan":"68ce4f8223b78f8616ec7f4a02c38988eae627d2","versionType":"git"},{"version":"f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8","status":"affected","lessThan":"fceac25487b21d6db940d2aed368e465d89cd1f4","versionType":"git"},{"version":"f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8","status":"affected","lessThan":"7fd28093b3effc4f92566466df364622830ec608","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/regulator/tps6594-regulator.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.5","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/regulator/tps6594-regulator.c"]}],"references":["https://git.kernel.org/stable/c/28f70e0aa767a8f022c70ed75ecef227dc668121","https://git.kernel.org/stable/c/4a672bff99f6b58dde419fd12b3a53da137f032d","https://git.kernel.org/stable/c/68ce4f8223b78f8616ec7f4a02c38988eae627d2","https://git.kernel.org/stable/c/fceac25487b21d6db940d2aed368e465d89cd1f4","https://git.kernel.org/stable/c/7fd28093b3effc4f92566466df364622830ec608"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93273.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93273","state":"PUBLISHED","datePublished":"2026-09-24T15:52:15.213Z","dateUpdated":"2026-10-19T09:08:27.727Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-17T16:02:15.098Z"},"containers":{"cna":{"title":"regulator: tps6594: Fix device node reference leaks in multiphase loop","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":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8","status":"affected","lessThan":"28f70e0aa767a8f022c70ed75ecef227dc668121","versionType":"git"},{"version":"f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8","status":"affected","lessThan":"4a672bff99f6b58dde419fd12b3a53da137f032d","versionType":"git"},{"version":"f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8","status":"affected","lessThan":"68ce4f8223b78f8616ec7f4a02c38988eae627d2","versionType":"git"},{"version":"f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8","status":"affected","lessThan":"fceac25487b21d6db940d2aed368e465d89cd1f4","versionType":"git"},{"version":"f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8","status":"affected","lessThan":"7fd28093b3effc4f92566466df364622830ec608","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/regulator/tps6594-regulator.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.5","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/regulator/tps6594-regulator.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:08:27.727Z"},"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"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}