regulator: tps6594: Fix device node reference leaks in multiphase loop

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-93273
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-24 16:17:24 UTC
Updated2026-09-24 16:17:24 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: regulator: tps6594: Fix device node reference leaks in multiphase loop In tps6594_regulator_probe(), the multi-phase configuration loop calls of_find_node_by_name() to find buck nodes by name, and of_get_parent() twice to navigate to the PMIC parent node. None of the acquired node references (np, intermediate parent, np_pmic_parent) are ever released via of_node_put(), causing a reference leak on every loop iteration. Additionally, of_find_node_by_name() can return NULL, but the result was immediately passed to of_node_full_name() and of_get_parent() without a NULL check, which could lead to a NULL pointer dereference. Fix this by: - Adding a NULL check for np after of_find_node_by_name() - Storing the intermediate parent node in a local variable np_parent - Calling of_node_put() on np, np_parent and np_pmic_parent at the end of each loop iteration

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8 28f70e0aa767a8f022c70ed75ecef227dc668121 git Not specified
CNA Linux Linux affected f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8 4a672bff99f6b58dde419fd12b3a53da137f032d git Not specified
CNA Linux Linux affected f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8 68ce4f8223b78f8616ec7f4a02c38988eae627d2 git Not specified
CNA Linux Linux affected f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8 fceac25487b21d6db940d2aed368e465d89cd1f4 git Not specified
CNA Linux Linux affected f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8 7fd28093b3effc4f92566466df364622830ec608 git Not specified
CNA Linux Linux affected 6.5 Not specified
CNA Linux Linux unaffected 6.5 semver Not specified
CNA Linux Linux unaffected 6.6.157 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.110 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.52 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.6 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/68ce4f8223b78f8616ec7f4a02c38988eae627d2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/fceac25487b21d6db940d2aed368e465d89cd1f4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4a672bff99f6b58dde419fd12b3a53da137f032d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/28f70e0aa767a8f022c70ed75ecef227dc668121 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7fd28093b3effc4f92566466df364622830ec608 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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