Medium 5.5Published May 27, 2026

CVE-2026-45868pinctrl: single: fix refcount leak in pcs_add_gpio_func()

Updated under an hour ago (Oct 26, 2026, 9:20 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 27, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from a1a277eb76b3507df7c41774048a644aa4dfd096 before 191bfd5710d6a7f48ba4315d8d3e908dcc15243c; from a1a277eb76b3507df7c41774048a644aa4dfd096 before 3e3b28bb0b6ddc521a4fdd1c1ba0d35017a0796b; from a1a277eb76b3507df7c41774048a644aa4dfd096 before 456a60d06c09a92680dc35fabca68024badcc28e; from a1a277eb76b3507df7c41774048a644aa4dfd096 before 99cc7352156c65201c675f750e0e77c4c73d93f5; from a1a277eb76b3507df7c41774048a644aa4dfd096 before 7814b1431848854b56717086e2b61bea3c59753d; from a1a277eb76b3507df7c41774048a644aa4dfd096 before e2e367e56bacb93ce5ac73f0b3297d5c83d38dd4; from a1a277eb76b3507df7c41774048a644aa4dfd096 before 5b9e84d27e310f22c4ba45fedbc4f5baf43dd823; from a1a277eb76b3507df7c41774048a644aa4dfd096 before 353353309b0f7afa407df29e455f9d15b5acc296	CNA record
linux linux_kernel linux:linux_kernel	from 3.10 before 5.10.252; from 5.11 before 5.15.202; from 5.16 before 6.1.165; from 6.2 before 6.6.128; from 6.7 before 6.12.75; from 6.13 before 6.18.14; from 6.19 before 6.19.4	NVD

References

https://git.kernel.org/stable/c/191bfd5710d6a7f48ba4315d8d3e908dcc15243cpatch
https://git.kernel.org/stable/c/3e3b28bb0b6ddc521a4fdd1c1ba0d35017a0796bpatch
https://git.kernel.org/stable/c/456a60d06c09a92680dc35fabca68024badcc28epatch
https://git.kernel.org/stable/c/99cc7352156c65201c675f750e0e77c4c73d93f5patch
https://git.kernel.org/stable/c/7814b1431848854b56717086e2b61bea3c59753dpatch
https://git.kernel.org/stable/c/e2e367e56bacb93ce5ac73f0b3297d5c83d38dd4patch
https://git.kernel.org/stable/c/5b9e84d27e310f22c4ba45fedbc4f5baf43dd823patch
https://git.kernel.org/stable/c/353353309b0f7afa407df29e455f9d15b5acc296patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.