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

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.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于pinctrl single驱动中pcs_add_gpio_func()函数未释放of_parse_phandle_with_args()返回的设备节点引用，导致引用计数泄漏。

AI Predicted 5.5 Difficulty: Hard EPSS 0.16% · P6

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux a1a277eb76b3507df7c41774048a644aa4dfd096< 191bfd5710d6a7f48ba4315d8d3e908dcc15243c affected
a1a277eb76b3507df7c41774048a644aa4dfd096< 3e3b28bb0b6ddc521a4fdd1c1ba0d35017a0796b affected
a1a277eb76b3507df7c41774048a644aa4dfd096< 456a60d06c09a92680dc35fabca68024badcc28e affected
a1a277eb76b3507df7c41774048a644aa4dfd096< 99cc7352156c65201c675f750e0e77c4c73d93f5 affected
a1a277eb76b3507df7c41774048a644aa4dfd096< 7814b1431848854b56717086e2b61bea3c59753d affected
a1a277eb76b3507df7c41774048a644aa4dfd096< e2e367e56bacb93ce5ac73f0b3297d5c83d38dd4 affected
a1a277eb76b3507df7c41774048a644aa4dfd096< 5b9e84d27e310f22c4ba45fedbc4f5baf43dd823 affected
a1a277eb76b3507df7c41774048a644aa4dfd096< 353353309b0f7afa407df29e455f9d15b5acc296 affected
… +10 more rows
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I. Basic Information for CVE-2026-45868

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
pinctrl: single: fix refcount leak in pcs_add_gpio_func()
Source: CVE Program / CVE List V5
Vulnerability 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.
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
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于pinctrl single驱动中pcs_add_gpio_func()函数未释放of_parse_phandle_with_args()返回的设备节点引用，导致引用计数泄漏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux a1a277eb76b3507df7c41774048a644aa4dfd096 ~ 191bfd5710d6a7f48ba4315d8d3e908dcc15243c -
Linux Linux 3.10 -

II. Public POCs for CVE-2026-45868

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III. Intelligence Information for CVE-2026-45868

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Patches & Fixes for CVE-2026-45868 (7)

Same Patch Batch · Linux · 2026-05-27 · 275 CVEs total

CVE-2026-46039 9.8 CRITICAL rxgk: Fix potential integer overflow in length check
CVE-2026-45898 9.8 CRITICAL RDMA/iwcm: Fix workqueue list corruption by removing work_list
CVE-2026-45972 9.8 CRITICAL smb: client: fix potential UAF and double free in smb2_open_file()
CVE-2026-45988 9.8 CRITICAL rxrpc: Fix re-decryption of RESPONSE packets
CVE-2026-46043 9.1 CRITICAL RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv
CVE-2026-45945 8.8 HIGH iommu/vt-d: Fix race condition during PASID entry replacement
CVE-2026-46056 8.8 HIGH Bluetooth: hci_event: fix potential UAF in SSP passkey handlers
CVE-2025-71311 8.2 HIGH fs/ntfs3: Initialize new folios before use
CVE-2026-46037 8.2 HIGH ipv4: icmp: validate reply type before using icmp_pointers
CVE-2026-45843 8.2 HIGH slip: bound decode() reads against the compressed packet length
CVE-2026-46010 8.1 HIGH rxrpc: Fix error handling in rxgk_extract_token()
CVE-2026-46099 8.1 HIGH net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels
CVE-2026-46076 7.9 HIGH KVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1
CVE-2026-45910 7.8 HIGH RDMA/rxe: Fix race condition in QP timer handlers
CVE-2026-45862 7.8 HIGH iommu/vt-d: Flush cache for PASID table before using it
CVE-2026-45956 7.8 HIGH drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl()
CVE-2026-46036 7.8 HIGH vfio/cdx: Serialize VFIO_DEVICE_SET_IRQS with a per-device mutex
CVE-2026-46100 7.8 HIGH fs: afs: revert mmap_prepare() change
CVE-2026-45894 7.8 HIGH iommu/vt-d: Clear Present bit before tearing down PASID entry
CVE-2026-45933 7.8 HIGH bpf: Preserve id of register in sync_linked_regs()

Showing top 20 of 275 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-45868

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