What’s Vulnerable › Vulnerabilities

CVE-2023-54230: amba: bus: fix refcount leak

• 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: 2025-12-30 · updated 2026-10-28

Description

In the Linux kernel, the following vulnerability has been resolved: amba: bus: fix refcount leak commit 5de1540b7bc4 ("drivers/amba: create devices from device tree") increases the refcount of of_node, but not releases it in amba_device_release, so there is refcount leak. By using of_node_put to avoid refcount leak.

Affected products

• Linux kernel: 3.1 — fixed in 6.6

How to fix

Upgrade to a fixed version: Linux kernel 6.6. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/03db4fe7917bb160eeccf3968835475fa32b7e10
• https://git.kernel.org/stable/c/206fadb7278ceac7593dd0b945a77b9df856a674
• https://git.kernel.org/stable/c/4f1807fddd9bf175ee5e14fffc6b6106e4b297ef
• https://git.kernel.org/stable/c/81ff633a88be2482c163d3acd2801d501261ce6a
• https://git.kernel.org/stable/c/8b60a706166de5de82314494704c2419e7657bf8
• https://git.kernel.org/stable/c/9062ce0ccbd82fbe81cc839a512c0ad90847e01c
• https://git.kernel.org/stable/c/94e398df32e850f26828690ee62f7441979583cc
• https://git.kernel.org/stable/c/9baf2278b3eed2c50112169121257d8a6ee0606c
• https://git.kernel.org/stable/c/e312cbdc11305568554a9e18a2ea5c2492c183f3

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