CVE-2026-98578 PUBLISHED

nfc: st21nfca: validate ISO15693 inventory length

Assigner: Linux
Reserved: 25.09.2026 Published: 18.10.2026 Updated: 18.10.2026

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

nfc: st21nfca: validate ISO15693 inventory length

The ISO15693 inventory helper removes a two-byte prefix without checking that it exists, then accepts a one-byte remainder before reading data[1] as the DSFID.

Require the prefix and at least two remaining bytes before copying the UID data and reading the DSFID.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 7974728094d35f38775417a26d8f30ea3602496a to e47b2a350bb0ff123434ec5484c6dc3333b0727c (excl.)
  • affected from 7974728094d35f38775417a26d8f30ea3602496a to 57d183764f3002f9625ee4deeeb20716c519534e (excl.)
  • affected from 7974728094d35f38775417a26d8f30ea3602496a to 3af2ea4035581a1607d9830779c187a0c7e225aa (excl.)
  • affected from 7974728094d35f38775417a26d8f30ea3602496a to 9fa21b0f78adb514e3bd96a505ddb752e9727ff3 (excl.)
  • affected from 7974728094d35f38775417a26d8f30ea3602496a to 6353dae51bc9b3cad13c9d890b53311a46c96b4e (excl.)
  • affected from 7974728094d35f38775417a26d8f30ea3602496a to fdd95e819d828c975aaeb258a3fed5dd7fd136d0 (excl.)
  • affected from 7974728094d35f38775417a26d8f30ea3602496a to a86987d03a4d39acdbe4533d83db4d656ea36c59 (excl.)
  • affected from 7974728094d35f38775417a26d8f30ea3602496a to 7f2ea5ed588c03d481f0301e6c3d4240132383fb (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 3.16 is affected
  • unaffected from 0 to 3.16 (excl.)
  • unaffected from 5.10.271 to 5.10.* (incl.)
  • unaffected from 5.15.222 to 5.15.* (incl.)
  • unaffected from 6.1.189 to 6.1.* (incl.)
  • unaffected from 6.6.158 to 6.6.* (incl.)
  • unaffected from 6.12.112 to 6.12.* (incl.)
  • unaffected from 6.18.55 to 6.18.* (incl.)
  • unaffected from 7.2.9 to 7.2.* (incl.)
  • unaffected from 7.3-rc5 to * (incl.)

References