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CVE-2026-98746

Linux: serial: ma35d1: Fix clock reference leak in ma35d1serial_probe()

Linux LinuxOperating systems
Open in ThreatlineRecord JSON
CVSS
NoneNot scored
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.17%Chance of exploitation activity in the next 30 days, higher than 5% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in3cdad0c541f899bd9a109b7dc43a1bc76123bc84Also 547c742f3b4acd4634eec47e9bff8731b55059a0, 1b303d383089aae7f20ad19fee15690486b935cb and 1 moreCVE List
Published18 Oct 2026Updated 21 Oct 2026CVE List

What fixes it

  • 3cdad0c541f899bd9a109b7dc43a1bc76123bc84LinuxCVE List
  • 547c742f3b4acd4634eec47e9bff8731b55059a0LinuxCVE List
  • 1b303d383089aae7f20ad19fee15690486b935cbLinuxCVE List
  • 98401cf912fe8a081ef8e500c421b6d957b55a99LinuxCVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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().

Text from CVE List

Affected versions 12

  • Linuxaffected: 930cbf92db0184e327293d5e7089be0b08d46371 before 3cdad0c541f899bd9a109b7dc43a1bc76123bc84CVE List
  • Linuxaffected: 930cbf92db0184e327293d5e7089be0b08d46371 before 547c742f3b4acd4634eec47e9bff8731b55059a0CVE List
  • Linuxaffected: 930cbf92db0184e327293d5e7089be0b08d46371 before d8233d6b391b4cd87df6e89056c21496df7a3012CVE List
  • Linuxaffected: 930cbf92db0184e327293d5e7089be0b08d46371 before 1b303d383089aae7f20ad19fee15690486b935cbCVE List
  • Linuxaffected: 930cbf92db0184e327293d5e7089be0b08d46371 before 98401cf912fe8a081ef8e500c421b6d957b55a99CVE List
  • Linuxaffected: 6.5CVE List
  • Linuxunaffected: all versions before 6.5CVE List
  • Linuxunaffected: 6.6.160 through 6.6.*CVE List
  • Linuxunaffected: 6.12.113 through 6.12.*CVE List
  • Linuxunaffected: 6.18.56 through 6.18.*CVE List
  • Linuxunaffected: 7.2.10 through 7.2.*CVE List
  • Linuxunaffected: 7.3CVE List

References 5