What’s Vulnerable › Vulnerabilities

CVE-2026-98746: serial: ma35d1: Fix clock reference leak in ma35d1serial_probe()

• 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: 2026-10-18 · updated 2026-10-21

Description

In the Linux kernel, the following vulnerability has been resolved: serial: ma35d1: Fix clock reference leak in ma35d1serial_probe() of_clk_get() returns a clock with a reference that has to be released with clk_put(). ma35d1serial_probe() never does that, so the reference is leaked on the probe error paths and also when the port is removed. Release it on the error paths and in ma35d1serial_remove().

Affected products

• Linux kernel: 6.5 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1b303d383089aae7f20ad19fee15690486b935cb
• https://git.kernel.org/stable/c/3cdad0c541f899bd9a109b7dc43a1bc76123bc84
• https://git.kernel.org/stable/c/547c742f3b4acd4634eec47e9bff8731b55059a0
• https://git.kernel.org/stable/c/98401cf912fe8a081ef8e500c421b6d957b55a99
• https://git.kernel.org/stable/c/d8233d6b391b4cd87df6e89056c21496df7a3012

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