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CVE-2026-97508

Linux: thunderbolt: Set tb->root_switch to NULL when domain is stopped

Linux LinuxOperating systems
Open in ThreatlineRecord JSON
CVSS
7.5High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.22%Chance of exploitation activity in the next 30 days, higher than 12% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in66b0fe27e277713c2b9f3c452c76330ed0bd7eafAlso 54ad3415cc211ca0d64ae1bf3234d6eb5c6aedd0, 83d1af5b1b6e6c96ffa633ca2c9a77f6f4c93efa and 1 moreCVE List
Published24 Sep 2026Updated 3 Oct 2026CVE List

What fixes it

  • 66b0fe27e277713c2b9f3c452c76330ed0bd7eafLinuxCVE List
  • 54ad3415cc211ca0d64ae1bf3234d6eb5c6aedd0LinuxCVE List
  • 83d1af5b1b6e6c96ffa633ca2c9a77f6f4c93efaLinuxCVE List
  • 99f019d2e9eb79adc485fef8aa8ada2cd0c843e9LinuxCVE 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:

thunderbolt: Set tb->root_switch to NULL when domain is stopped

Similarly what we do with the firmware connection manager. This makes tb_xdp_handle_request() return error to the remote host. However, we need to make sure we keep the uuid alive so that we can reply until the whole domain is released.

Text from CVE List

Affected versions 16

  • Linuxaffected: d1ff70241a275133e1a0258b7c23588b122276c8 before d9a638e7bc87e0e6fe3a75517ac481e72fc0058cCVE List
  • Linuxaffected: d1ff70241a275133e1a0258b7c23588b122276c8 before 66b0fe27e277713c2b9f3c452c76330ed0bd7eafCVE List
  • Linuxaffected: d1ff70241a275133e1a0258b7c23588b122276c8 before 54ad3415cc211ca0d64ae1bf3234d6eb5c6aedd0CVE List
  • Linuxaffected: d1ff70241a275133e1a0258b7c23588b122276c8 before 83d1af5b1b6e6c96ffa633ca2c9a77f6f4c93efaCVE List
  • Linuxaffected: d1ff70241a275133e1a0258b7c23588b122276c8 before f06e9fbae78a51832211b4495a19412c7d49ecb4CVE List
  • Linuxaffected: d1ff70241a275133e1a0258b7c23588b122276c8 before 99f019d2e9eb79adc485fef8aa8ada2cd0c843e9CVE List
  • Linuxaffected: d1ff70241a275133e1a0258b7c23588b122276c8 before e56249d8a68e712f3b60e1f3fdbb5b4fea146468CVE List
  • Linuxaffected: 4.15CVE List
  • Linuxunaffected: all versions before 4.15CVE 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