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CVE-2026-98575

Unknown

Last modified

CVE-2026-98575 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: fix OOB read in pn533_acr122_is_rx_frame_valid() frame->ccid.datalen is read directly from the USB response frame and used, unchecked, as an index into frame->data[]. A malicious or malfunctioning device can set this field to an arbitrary value, causing the driver to read far outside the received buffer. Bound ccid.datalen against the maximum possible ACR122 frame size before using it.

Description

In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: fix OOB read in pn533_acr122_is_rx_frame_valid() frame->ccid.datalen is read directly from the USB response frame and used, unchecked, as an index into frame->data[]. A malicious or malfunctioning device can set this field to an arbitrary value, causing the driver to read far outside the received buffer. Bound ccid.datalen against the maximum possible ACR122 frame size before using it. This replaces the existing datalen == 0 check, since datalen < 2 already covers that case and additionally rejects datalen == 1, which would still underflow the "datalen - 2" offset used below.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc, < 8db3b1e012a8b25078dfa1efabe3d0cd2916dcba; >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc, < 74b3fbc60907ee97e3af3249091f57351b53a6d6; >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc, < 8a0f1bb790d964893db7fc59febda9a534db07b3; >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc, < ea82b7576793219fa10a8b545f8338998b2a9ce2; >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc, < 72b8b2126e854d6756a1aa4bdc66d7457b832294; >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc, < e72cbedc4596e808d22dd2b9fff666ece76f8dd6; >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc, < 2450a388367231fb7dd798538f393af227c00c4d; >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc, < b61732f47316d45f27706db7812950145d3327b5
LinuxLinux4.7

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98575?
In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: fix OOB read in pn533_acr122_is_rx_frame_valid() frame->ccid.datalen is read directly from the USB response frame and used, unchecked, as an index into frame->data[]. A malicious or malfunctioning device can set this field to an arbitrary value, causing the driver to read far outside the received buffer. Bound ccid.datalen against the maximum possible ACR122 frame size before using it. This replaces the existing datalen == 0 check, since datalen < 2 already covers that case and additionally rejects datalen == 1, which would still underflow the "datalen - 2" offset used below.
How severe is CVE-2026-98575?
Severity scoring for CVE-2026-98575 is pending analysis.
How do I fix CVE-2026-98575?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST