What’s Vulnerable › Vulnerabilities

CVE-2022-50444: clk: tegra20: Fix refcount leak in tegra20_clock_init

• Severity: medium (CVSS 5.5 v3.1)
• 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: 2025-10-01 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: clk: tegra20: Fix refcount leak in tegra20_clock_init of_find_matching_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.

Affected products

• Linux kernel: from 3.9 before 4.9.331; from 4.10 before 4.14.296; from 4.15 before 4.19.262; from 4.20 before 5.4.220; from 5.5 before 5.10.150; from 5.11 before 5.15.75 — fixed in 4.14.296, 4.19.262, 4.9.331, 5.10.150, 5.15.75, 5.19.17

How to fix

Upgrade to a fixed version: Linux kernel 4.14.296, 4.19.262, 4.9.331, 5.10.150. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0172d14f50098f5736b4b272a1529a3e05419bd6
• https://git.kernel.org/stable/c/4e343bafe03ff68a62f48f8235cf98f2c685468b
• https://git.kernel.org/stable/c/53531d00e2a8a28a3bf56ea58b18ff3611824f37
• https://git.kernel.org/stable/c/5d9fb09612defe7b1d5627db7b3833b46eb21e7b
• https://git.kernel.org/stable/c/6f76ef65899fcd93ca747ef38d7a41931e61e4fa
• https://git.kernel.org/stable/c/70f0a0a27d79f689defc5f5f0bd47d07813e6dea
• https://git.kernel.org/stable/c/8cd228892759d37f36a46616025f4fa0d0a63b5d
• https://git.kernel.org/stable/c/d6e750535b46e12cdde185b416c415e49e4e6e22
• https://git.kernel.org/stable/c/f9bdef9bb60814514a787b84184ecaa269a7c951

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