nfc: digital: clamp SENSF_RES length to the destination buffer

Summary

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).

Timeline

1. Sep 4, 2026, 3:13 PM UTCCVE published
2. Oct 19, 2026, 8:43 AM UTCRecord last updated

Affected versions

• Linux Linux

  From 8c0695e4998dd268ff2a05951961247b7e015651 · fixed in 6afb29751ee731e7f7a96feb8a15f91441e552ba; From 8c0695e4998dd268ff2a05951961247b7e015651 · fixed in e886c63d2ca7108826076989103a1ffa8a0bb8f4; From 8c0695e4998dd268ff2a05951961247b7e015651 · fixed in 4e942da2869bcd646353eef706b7dd82efeb9db5; From 8c0695e4998dd268ff2a05951961247b7e015651 · fixed in d0756a98277e383c26fead988a96c91f0781cd7f; From 8c0695e4998dd268ff2a05951961247b7e015651 · fixed in af4c0606f743e009254a8d252096855335ade85d; From 8c0695e4998dd268ff2a05951961247b7e015651 · fixed in a56773e649ea99b344d6bbaf90f34c8e3fadef5d; From 8c0695e4998dd268ff2a05951961247b7e015651 · fixed in a1ef9bddfbb3ae42b036c5aa16cf386d78db70b6; From 8c0695e4998dd268ff2a05951961247b7e015651 · fixed in 31aa28ed732f66ab83c40ef53d99791be69b85c4; From 8c0695e4998dd268ff2a05951961247b7e015651 · fixed in 344a56d7c8e0f3cbaff0bcb1bcd95a1a1db24b16

• Linux Linux

  3.13

• KernelLinux

  From 3.13.0 · fixed in 5.10.267; From 5.11.0 · fixed in 5.15.218; From 5.16.0 · fixed in 6.1.185; From 6.2.0 · fixed in 6.6.154; From 6.7.0 · fixed in 6.12.106; From 6.13.0 · fixed in 6.18.47; From 6.19.0 · fixed in 7.1.11; From 7.2.0 · fixed in 7.2.1

References 9