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CVE-2022-49386: net: ethernet: ti: am65-cpsw-nuss: Fix some refcount leaks

• 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: net: ethernet: ti: am65-cpsw-nuss: Fix some refcount leaks of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. am65_cpsw_init_cpts() and am65_cpsw_nuss_probe() don't release the refcount in error case. Add missing of_node_put() to avoid refcount leak.

Affected products

• Linux kernel: from 5.7 before 5.10.122; from 5.11 before 5.15.47; from 5.16 before 5.17.15; from 5.18 before 5.18.4 — fixed in 5.10.122, 5.15.47, 5.17.15, 5.18.4

How to fix

Upgrade to a fixed version: Linux kernel 5.10.122, 5.15.47, 5.17.15, 5.18.4. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2e44f21c384503562713b7d3b673c40bed20af3d
• https://git.kernel.org/stable/c/5dd89d2fc438457811cbbec07999ce0d80051ff5
• https://git.kernel.org/stable/c/78aca10a16f001c9f49f1cc4dadfee8d444bb173
• https://git.kernel.org/stable/c/a4b7ef3b159805ba6be061d0cd2403d84b9b0063
• https://git.kernel.org/stable/c/f7ba2cc57f404d2d9f26fb85bd3833d35a477829

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