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CVE-2026-93273— regulator: tps6594: Fix device node reference leaks in multiphase loop

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Linux 内核中，已修复以下漏洞： regulator: tps6594：修复多相循环中设备节点引用泄漏问题 在 函数中，多相配置循环调用 按名称查找 buck 节点，并两次调用 以导航至 PMIC 父节点。然而，所获取的节点引用（即 、中间父节点以及 ）从未通过 释放，导致每次循环迭代都会发生引用泄漏。 此外， 可能返回 ，但代码未进行 检查，就直接将返回值传递给 和 ，这可能导致空指针解引用。 该修复包括以下措施： 在 之后，对返回的 增加 检查； 将中间父节点存储到局部变量 中； 在每次循环迭代结束时，

AI Predicted 5.5 Difficulty: Moderate EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1610 · Deploy Container

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8< 28f70e0aa767a8f022c70ed75ecef227dc668121 affected
f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8< 4a672bff99f6b58dde419fd12b3a53da137f032d affected
f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8< 68ce4f8223b78f8616ec7f4a02c38988eae627d2 affected
f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8< fceac25487b21d6db940d2aed368e465d89cd1f4 affected
f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8< 7fd28093b3effc4f92566466df364622830ec608 affected
6.5 affected
< 6.5 unaffected
6.6.157≤ 6.6.* unaffected
… +4 more rows
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I. Basic Information for CVE-2026-93273

Vulnerability Information
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Vulnerability Title
regulator: tps6594: Fix device node reference leaks in multiphase loop
Source: CVE Program / CVE List V5
Vulnerability Description
In 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
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8 ~ 28f70e0aa767a8f022c70ed75ecef227dc668121 -
Linux Linux 6.5 -

II. Public POCs for CVE-2026-93273

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III. Intelligence Information for CVE-2026-93273

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Patches & Fixes for CVE-2026-93273 (5)

Same Patch Batch · Linux · 2026-09-24 · 234 CVEs total

CVE-2026-93207 9.8 CRITICAL SUNRPC: Zero rpc_gss_wire_cred at svcauth_gss_decode_credbody() entry
CVE-2026-97413 9.8 CRITICAL RDMA/rtrs-srv: Fix integer underflow in process_read and process_write
CVE-2026-93228 9.1 CRITICAL svcrdma: Reject Write/Reply chunks with segcount 0
CVE-2026-93793 8.8 HIGH wifi: iwlwifi: mvm: validate TX_CMD response layout
CVE-2026-93799 8.8 HIGH wifi: iwlwifi: mvm: validate sta_id in BA window status notif
CVE-2026-93790 8.8 HIGH wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif
CVE-2026-93806 8.8 HIGH wifi: cfg80211: validate assoc response length before status and IE access
CVE-2026-97442 8.8 HIGH wifi: ath11k: fix invalid data access in ath11k_dp_rx_h_undecap_nwifi
CVE-2026-97509 8.8 HIGH thunderbolt: Keep XDomain reference during the lifetime of a service
CVE-2026-97409 8.8 HIGH nvme-fc: Do not cancel requests in io target before it is initialized
CVE-2026-93280 8.8 HIGH greybus: audio: bound the topology section sizes against the fetched size
CVE-2026-93284 8.8 HIGH drm/pagemap: dma-unmap pages before handling migration errors
CVE-2026-97451 8.4 HIGH ACPICA: Fix integer overflow in acpi_ex_opcode_3A_1T_1R() (mid_op)
CVE-2026-97452 8.4 HIGH ACPICA: Prevent adding invalid references
CVE-2026-97455 8.4 HIGH ACPICA: Fix use-after-free in acpi_ds_terminate_control_method()
CVE-2026-97450 8.4 HIGH ACPICA: validate handler object type in two places
CVE-2026-93827 8.4 HIGH virtio-fs: avoid double-free on failed queue setup
CVE-2026-97433 8.2 HIGH nvme: validate FDP configuration descriptor sizes
CVE-2026-93221 8.1 HIGH nfsd: convert nfsd_net boolean flags to unsigned long flags word
CVE-2026-93786 8.1 HIGH ksmbd: preserve VFS inherited POSIX ACL mask

Showing top 20 of 234 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-93273

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