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CVE-2022-49211: mips: cdmm: Fix refcount leak in mips_cdmm_phys_base

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: mips: cdmm: Fix refcount leak in mips_cdmm_phys_base The of_find_compatible_node() function returns a node pointer with refcount incremented, We should use of_node_put() on it when done Add the missing of_node_put() to release the refcount.

Affected products

• Linux kernel: from 5.9 before 5.10.110; from 5.11 before 5.15.33; from 5.16 before 5.16.19; from 5.17 before 5.17.2 — fixed in 5.10.110, 5.15.33, 5.16.19, 5.17.2

How to fix

Upgrade to a fixed version: Linux kernel 5.10.110, 5.15.33, 5.16.19, 5.17.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/4528668ca331f7ce5999b7746657b46db5b3b785
• https://git.kernel.org/stable/c/4680c2ac9aabda82acd23ebbd1f900fb6a889cd3
• https://git.kernel.org/stable/c/69155dc2e04777aa94207a73a8b10f12b8428a68
• https://git.kernel.org/stable/c/721ab4be20d4448dd04c2cc8ed99cd4f3e45f765
• https://git.kernel.org/stable/c/ef1728e3cb9e43f38ed10cde705a7ba2b4ad2d35

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