nfc: pn533: fix OOB read in pn533_acr122_is_rx_frame_valid()
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.
CVE-2026-98575
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98575
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
"lessThan": "8db3b1e012a8b25078dfa1efabe3d0cd2916dcba",
"versionType": "git"
},
{
"status": "affected",
"version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
"lessThan": "74b3fbc60907ee97e3af3249091f57351b53a6d6",
"versionType": "git"
},
{
"status": "affected",
"version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
"lessThan": "8a0f1bb790d964893db7fc59febda9a534db07b3",
"versionType": "git"
},
{
"status": "affected",
"version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
"lessThan": "ea82b7576793219fa10a8b545f8338998b2a9ce2",
"versionType": "git"
},
{
"status": "affected",
"version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
"lessThan": "72b8b2126e854d6756a1aa4bdc66d7457b832294",
"versionType": "git"
},
{
"status": "affected",
"version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
"lessThan": "e72cbedc4596e808d22dd2b9fff666ece76f8dd6",
"versionType": "git"
},
{
"status": "affected",
"version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
"lessThan": "2450a388367231fb7dd798538f393af227c00c4d",
"versionType": "git"
},
{
"status": "affected",
"version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
"lessThan": "b61732f47316d45f27706db7812950145d3327b5",
"versionType": "git"
}
],
"programFiles": [
"drivers/nfc/pn533/usb.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.7"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.7",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.271",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.55",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.9",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/nfc/pn533/usb.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98575
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38594 · Revision 1
- Added to Heist Feed
- Publisher date