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CVE-2022-50703: soc: qcom: smsm: Fix refcount leak bugs in qcom_smsm_probe()

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-24 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: soc: qcom: smsm: Fix refcount leak bugs in qcom_smsm_probe() There are two refcount leak bugs in qcom_smsm_probe(): (1) The 'local_node' is escaped out from for_each_child_of_node() as the break of iteration, we should call of_node_put() for it in error path or when it is not used anymore. (2) The 'node' is escaped out from for_each_available_child_of_node() as the 'goto', we should call of_node_put() for it in goto target.

Affected products

• Linux kernel: 4.5 — fixed in 6.1

How to fix

Upgrade to a fixed version: Linux kernel 6.1. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1bbe75d466e5118b7d49ef4a346c3ce5742da4e8
• https://git.kernel.org/stable/c/1e3ed59370c712df436791efed120f0c082aa9bc
• https://git.kernel.org/stable/c/39781c98ad46b4e85053345dff797240c1ed7935
• https://git.kernel.org/stable/c/42df28994eba7b56c762f7bbe7efd5611a1cd15b
• https://git.kernel.org/stable/c/8fb6112bd49c0e49f2cf51604231d85ff00284bb
• https://git.kernel.org/stable/c/96e0028debdd07a6d582f0dfadf9a3ec2b5fffff
• https://git.kernel.org/stable/c/af8f6f39b8afd772fda4f8e61823ef8c021bf382
• https://git.kernel.org/stable/c/bd4666bf5562fe8e8e5e9bd6fc805d30e1767f43
• https://git.kernel.org/stable/c/ee7fc83ce0e6986ff9b1c1d7e994fbbf8d43861d

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