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CVE-2026-93788

Linux: wifi: iwlwifi: acpi: validate WGDS table revision index

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 in4f2ec7a0b3ff148cb13e14cb26ac43523df8b9f5Also 9096509e63ddd349eb075ec447d1a714e87e17a4, 2fc98ab6fe8acabd13eb09dc17426a33cf9f27f7 and 2 moreCVE List
Published24 Sep 2026Updated 3 Oct 2026CVE List

What fixes it

  • 4f2ec7a0b3ff148cb13e14cb26ac43523df8b9f5LinuxCVE List
  • 9096509e63ddd349eb075ec447d1a714e87e17a4LinuxCVE List
  • 2fc98ab6fe8acabd13eb09dc17426a33cf9f27f7LinuxCVE List
  • 346a558491241cbe8fef82b3d8f62d1a6b6bf61fLinuxCVE List
  • 954e821f42aaca56073ca830c5fd4bcf1a89048cLinuxCVE 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:

wifi: iwlwifi: acpi: validate WGDS table revision index

Check tbl_rev bounds before BIT(tbl_rev) to avoid undefined shifts when firmware reports an invalid revision value.

Text from CVE List

Affected versions 12

  • Linuxaffected: 97f8a3d1610b1f50013de1e632b007cbfd7459d8 before 4f2ec7a0b3ff148cb13e14cb26ac43523df8b9f5CVE List
  • Linuxaffected: 97f8a3d1610b1f50013de1e632b007cbfd7459d8 before 9096509e63ddd349eb075ec447d1a714e87e17a4CVE List
  • Linuxaffected: 97f8a3d1610b1f50013de1e632b007cbfd7459d8 before 2fc98ab6fe8acabd13eb09dc17426a33cf9f27f7CVE List
  • Linuxaffected: 97f8a3d1610b1f50013de1e632b007cbfd7459d8 before 346a558491241cbe8fef82b3d8f62d1a6b6bf61fCVE List
  • Linuxaffected: 97f8a3d1610b1f50013de1e632b007cbfd7459d8 before 954e821f42aaca56073ca830c5fd4bcf1a89048cCVE List
  • Linuxaffected: 5.16CVE List
  • Linuxunaffected: all versions before 5.16CVE 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 5