What’s Vulnerable › Vulnerabilities

CVE-2022-49676: memory: samsung: exynos5422-dmc: Fix refcount leak in of_get_dram_timings

• 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: memory: samsung: exynos5422-dmc: Fix refcount leak in of_get_dram_timings of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. This function doesn't call of_node_put() in some error paths. To unify the structure, Add put_node label and goto it on errors.

Affected products

• Linux kernel: from 5.5 before 5.10.127; from 5.11 before 5.15.51; from 5.16 before 5.18.8; 5.19-rc1, 5.19-rc2, 5.19-rc3 — fixed in 5.10.127, 5.15.51, 5.18.8

How to fix

Upgrade to a fixed version: Linux kernel 5.10.127, 5.15.51, 5.18.8. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1332661e09304b7b8e84e5edc11811ba08d12abe
• https://git.kernel.org/stable/c/889aad2203e09eed2071ca8985c25e9d6aea5735
• https://git.kernel.org/stable/c/bb2a481778c60f912c363e271ae46b55ff8132db
• https://git.kernel.org/stable/c/cde4480b5ab06195b9164184b0c02ced71e601b4

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