CVE-2026-93265
Linux: PCI/pwrctrl: tc9563: Fix parsing the integrated Ethernet MAC Endpoint node
Linux LinuxOperating systemsCVSS
7.7HighExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.14%Chance of exploitation activity in the next 30 days, higher than 3% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in972c771674e88a43c8310c459ea30f0f0d0c168fAlso 6e5e6c2194b2acbded5b12ed80590d215b786d29CVE List
What fixes it
- 972c771674e88a43c8310c459ea30f0f0d0c168fLinuxCVE List
- 6e5e6c2194b2acbded5b12ed80590d215b786d29LinuxCVE 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/pwrctrl: tc9563: Fix parsing the integrated Ethernet MAC Endpoint node
DSP3 has an integrated Ethernet MAC Endpoint which has its own set of config registers for configuring settings such as ASPM. The Endpoint device has two physical functions and those two functions share the same settings.
Parse the Endpoint node under DSP3 instead of parsing both functions. The existing parsing logic also has one OOB issue as parsing both functions will result in accessing past the tc9563_pwrctrl->cfg array.
Text from CVE List
Affected versions 6
- Linuxaffected: 4c9c7be47310c1dbd7b6d37d45986123f5b133b4 before 972c771674e88a43c8310c459ea30f0f0d0c168fCVE List
- Linuxaffected: 4c9c7be47310c1dbd7b6d37d45986123f5b133b4 before 6e5e6c2194b2acbded5b12ed80590d215b786d29CVE List
- Linuxaffected: 6.19CVE List
- Linuxunaffected: all versions before 6.19CVE List
- Linuxunaffected: 7.2.6 through 7.2.*CVE List
- Linuxunaffected: 7.3CVE List