CVE-2026-45868

pinctrl: single: fix refcount leak in pcs_add_gpio_func()

MEDIUM

5.5

CVSS Score

Published: May 27, 2026 at 12:15 PM UTC

Updated: June 27, 2026 at 11:41 AM UTC

1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: pinctrl: single: fix refcount leak in pcs_add_gpio_func() of_parse_phandle_with_args() returns a device_node pointer with refcount incremented in gpiospec.np. The loop iterates through all phandles but never releases the reference, causing a refcount leak on each iteration. Add of_node_put() calls to release the reference after extracting the needed arguments and on the error path when devm_kzalloc() fails. This bug was detected by our static analysis tool and verified by my code review.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

3.10 ≤ v < 5.10.2523.10 ≤ v < 5.15.2023.10 ≤ v < 6.1.1653.10 ≤ v < 6.12.753.10 ≤ v < 6.18.143.10 ≤ v < 6.19.43.10 ≤ v < 6.6.1283.10 ≤ v < 7.05.11 ≤ v < 5.15.2025.16 ≤ v < 6.1.1656.13 ≤ v < 6.18.146.19 ≤ v < 6.19.46.2 ≤ v < 6.6.1286.7 ≤ v < 6.12.753.10a1a277eb76b3507df7c41774048a644aa4dfd096

Vendor states this is fixed in 191bfd5710d6a7f48ba4315d8d3e908dcc15243c (fixed)

Vendor states this is fixed in 353353309b0f7afa407df29e455f9d15b5acc296 (fixed)

Vendor states this is fixed in 3e3b28bb0b6ddc521a4fdd1c1ba0d35017a0796b (fixed)

Vendor states this is fixed in 456a60d06c09a92680dc35fabca68024badcc28e (fixed)

Vendor states this is fixed in 5b9e84d27e310f22c4ba45fedbc4f5baf43dd823 (fixed)

Vendor states this is fixed in 7814b1431848854b56717086e2b61bea3c59753d (fixed)

Vendor states this is fixed in 99cc7352156c65201c675f750e0e77c4c73d93f5 (fixed)

Vendor states this is fixed in e2e367e56bacb93ce5ac73f0b3297d5c83d38dd4 (fixed)

Vendor states this is fixed in 3.10 (unaffected)

Vendor states this is fixed in 5.10.252 (unaffected)

Vendor states this is fixed in 5.15.202 (unaffected)

Vendor states this is fixed in 6.1.165 (unaffected)