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CVE-2026-99020

Linux: regulator: tps6594-regulator: Fix n_linear_ranges for TPS65224 BUCK2-4

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)0.21%Chance of exploitation activity in the next 30 days, higher than 10% of CVEs. Scored 24 Oct 2026FIRST EPSS
Fixed in1ea151615a82fd94f25e38b2cc7eeac49112508bAlso 66b7da589b2ce44a02b8387c6160e9254685f34f, 2f15518682c779b1014552cb2ccb4a2052f85f27 and 1 moreCVE List
Published23 Oct 2026Updated 23 Oct 2026CVE List

What fixes it

  • 1ea151615a82fd94f25e38b2cc7eeac49112508bLinuxCVE List
  • 66b7da589b2ce44a02b8387c6160e9254685f34fLinuxCVE List
  • 2f15518682c779b1014552cb2ccb4a2052f85f27LinuxCVE List
  • 6.6.160LinuxCVE 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:

regulator: tps6594-regulator: Fix n_linear_ranges for TPS65224 BUCK2-4

The TPS65224 BUCK2, BUCK3 and BUCK4 descriptors pass 4 as n_linear_ranges, but tps65224_bucks_2_3_4_ranges[] only has two entries, covering selectors 0x00-0x45.

The linear range helpers loop over n_linear_ranges entries, so any lookup of a selector above 0x45 reads past the end of the array and treats whatever follows it as two more ranges. This happens on the normal registration path when the core checks the voltage constraints against every selector. TPS652G1 uses the same descriptors and is affected too.

Use ARRAY_SIZE() so the count always matches the table.

Text from CVE List

Affected versions 13

  • Linuxaffected: 54308f24ce510a3ba1bf2e0ebc8b9c8a577b3c3b before 1ea151615a82fd94f25e38b2cc7eeac49112508bCVE List
  • Linuxaffected: 00c826525fbae0230f6c3e9879e56d50267deb42 before 66b7da589b2ce44a02b8387c6160e9254685f34fCVE List
  • Linuxaffected: 00c826525fbae0230f6c3e9879e56d50267deb42 before f6fbe9c6b39968a7696b9badef4bc29331a6376aCVE List
  • Linuxaffected: 00c826525fbae0230f6c3e9879e56d50267deb42 before f3423b56be12208a393274afb9a5e3d67fc58ce3CVE List
  • Linuxaffected: 00c826525fbae0230f6c3e9879e56d50267deb42 before 2f15518682c779b1014552cb2ccb4a2052f85f27CVE List
  • Linuxaffected: 6.6.157 before 6.6.160CVE List
  • Linuxaffected: 6.10CVE List
  • Linuxunaffected: all versions before 6.10CVE List
  • Linuxunaffected: 6.6.160 through 6.6.*CVE List
  • Linuxunaffected: 6.12.113 through 6.12.*CVE List
  • Linuxunaffected: 6.18.57 through 6.18.*CVE List
  • Linuxunaffected: 7.2.11 through 7.2.*CVE List
  • Linuxunaffected: 7.3CVE List

References 5