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CVE-2026-93820

Linux: PCI: rockchip: Protect root bus removal with rescan lock

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 6% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in025308e7c9cd10112b73558c9f63f8f7285fa726Also 5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652, 9b19201f57d87c4d0777621275dbc59bff41b7f2 and 1 moreCVE List
Published24 Sep 2026Updated 3 Oct 2026CVE List

What fixes it

  • 025308e7c9cd10112b73558c9f63f8f7285fa726LinuxCVE List
  • 5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652LinuxCVE List
  • 9b19201f57d87c4d0777621275dbc59bff41b7f2LinuxCVE List
  • 0bd9611587bb494c33566d825fe34b2705e4b167LinuxCVE 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:

PCI: rockchip: Protect root bus removal with rescan lock

Hold the pci_rescan_remove_lock lock while stopping and removing a root bus to avoid racing with concurrent rescan or hotplug operations triggered via sysfs. Such races may lead to use-after-free issues or system crashes.

[bhelgaas: commit log]

Text from CVE List

Affected versions 16

  • Linuxaffected: 073d3dbe9a7c38888d8dafe09df421b174a6cffa before 025308e7c9cd10112b73558c9f63f8f7285fa726CVE List
  • Linuxaffected: 073d3dbe9a7c38888d8dafe09df421b174a6cffa before ac47d42901859edb504a2890a3a5709c86dbc0c3CVE List
  • Linuxaffected: 073d3dbe9a7c38888d8dafe09df421b174a6cffa before eaeb9bed3641741aceb0add84a97023bed61e748CVE List
  • Linuxaffected: 073d3dbe9a7c38888d8dafe09df421b174a6cffa before 5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652CVE List
  • Linuxaffected: 073d3dbe9a7c38888d8dafe09df421b174a6cffa before ebca7e5947720e9d4bd918af3e17720270c50744CVE List
  • Linuxaffected: 073d3dbe9a7c38888d8dafe09df421b174a6cffa before 9b19201f57d87c4d0777621275dbc59bff41b7f2CVE List
  • Linuxaffected: 073d3dbe9a7c38888d8dafe09df421b174a6cffa before 0bd9611587bb494c33566d825fe34b2705e4b167CVE List
  • Linuxaffected: 4.12CVE List
  • Linuxunaffected: all versions before 4.12CVE List
  • Linuxunaffected: 5.10.271 through 5.10.*CVE List
  • Linuxunaffected: 5.15.222 through 5.15.*CVE List
  • Linuxunaffected: 6.1.189 through 6.1.*CVE List
  • Linuxunaffected: 6.6.158 through 6.6.*CVE List
  • Linuxunaffected: 6.12.111 through 6.12.*CVE List
  • Linuxunaffected: 6.18.53 through 6.18.*CVE List
  • Linuxunaffected: 7.2CVE List

References 7