CVE-2026-80803 PUBLISHED

nfc: digital: clamp SENSF_RES length to the destination buffer

Assigner: Linux
Reserved: 26.08.2026 Published: 04.09.2026 Updated: 04.09.2026

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

nfc: digital: clamp SENSF_RES length to the destination buffer

digital_in_recv_sensf_res() memcpy()s resp->len bytes from a remote NFC-F device response into the NFC_SENSF_RES_MAXSIZE-byte target.sensf_res field without an upper-bound check. A nearby malicious NFC-F device can send an oversized SENSF_RES response to overflow the stack-local struct nfc_target.

Clamp resp->len to NFC_SENSF_RES_MAXSIZE before the copy.

Found by 0sec automated security-research tooling (https://0sec.ai).

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 8c0695e4998dd268ff2a05951961247b7e015651 to 6afb29751ee731e7f7a96feb8a15f91441e552ba (excl.)
  • affected from 8c0695e4998dd268ff2a05951961247b7e015651 to e886c63d2ca7108826076989103a1ffa8a0bb8f4 (excl.)
  • affected from 8c0695e4998dd268ff2a05951961247b7e015651 to 4e942da2869bcd646353eef706b7dd82efeb9db5 (excl.)
  • affected from 8c0695e4998dd268ff2a05951961247b7e015651 to d0756a98277e383c26fead988a96c91f0781cd7f (excl.)
  • affected from 8c0695e4998dd268ff2a05951961247b7e015651 to af4c0606f743e009254a8d252096855335ade85d (excl.)
  • affected from 8c0695e4998dd268ff2a05951961247b7e015651 to a56773e649ea99b344d6bbaf90f34c8e3fadef5d (excl.)
  • affected from 8c0695e4998dd268ff2a05951961247b7e015651 to a1ef9bddfbb3ae42b036c5aa16cf386d78db70b6 (excl.)
  • affected from 8c0695e4998dd268ff2a05951961247b7e015651 to 31aa28ed732f66ab83c40ef53d99791be69b85c4 (excl.)
  • affected from 8c0695e4998dd268ff2a05951961247b7e015651 to 344a56d7c8e0f3cbaff0bcb1bcd95a1a1db24b16 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 3.13 is affected
  • unaffected from 0 to 3.13 (excl.)
  • unaffected from 5.10.267 to 5.10.* (incl.)
  • unaffected from 5.15.218 to 5.15.* (incl.)
  • unaffected from 6.1.185 to 6.1.* (incl.)
  • unaffected from 6.6.154 to 6.6.* (incl.)
  • unaffected from 6.12.106 to 6.12.* (incl.)
  • unaffected from 6.18.47 to 6.18.* (incl.)
  • unaffected from 7.1.11 to 7.1.* (incl.)
  • unaffected from 7.2.1 to 7.2.* (incl.)
  • unaffected from 7.3-rc1 to * (incl.)

References