CVE-2026-74532 PUBLISHED

Bluetooth: btintel: Validate length before parsing diagnostics TLV

Assigner: Linux
Reserved: 15.08.2026 Published: 15.08.2026 Updated: 15.08.2026

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: btintel: Validate length before parsing diagnostics TLV

btintel_diagnostics() accesses tlv->val[0] without first validating that the diagnostics VSE is long enough to contain that field, so may cause reading data beyond the received frame.

Fix by validating the length before access.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from af395330abed142a2685bf3d17a938544816bf3c to c31be902ccbbb0b2c23159a1481dce80d1f9753d (excl.)
  • affected from af395330abed142a2685bf3d17a938544816bf3c to dd20e30bdbd707ea8ced581f3d7f9e9854634b17 (excl.)
  • affected from af395330abed142a2685bf3d17a938544816bf3c to c618a9a5b08ea2e17bddf4e948be9f75d408fca4 (excl.)
  • affected from af395330abed142a2685bf3d17a938544816bf3c to 6ec9c3dc52302b891513f608f5fb478349b15ab3 (excl.)
  • affected from af395330abed142a2685bf3d17a938544816bf3c to b640ff9af3c809ff5ea2077fbba17df1594ec1e4 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.4 is affected
  • unaffected from 0 to 6.4 (excl.)
  • unaffected from 6.6.151 to 6.6.* (incl.)
  • unaffected from 6.12.103 to 6.12.* (incl.)
  • unaffected from 6.18.44 to 6.18.* (incl.)
  • unaffected from 7.1.8 to 7.1.* (incl.)
  • unaffected from 7.2-rc6 to * (incl.)

References