CVE-2026-98575 affecting package kernel 6.6.157.1-1
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.
- Products
- kernel
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-98575
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 17:23 UTC · Revision 1
Source evidence
CVE-2026-98575 affecting package kernel 6.6.157.1-1
core-osv · Original sourcePublished 18 Oct 2026, 16:17 UTC
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.
osv:AZL-108927
kernel
Fixed versions: Not specified
Complete source record
{
"id": "2fe4467b2a30ed52c26781c1f0fccad5c1a1dd84d4fafc96230f4c49ed7af6e3",
"url": "https://osv.dev/vulnerability/AZL-108927",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2026-98575 affecting package kernel 6.6.157.1-1",
"summary": "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.",
"evidence": "osv:AZL-108927",
"products": [
{
"name": {
"value": "kernel",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "AZL-108927",
"aliases": [
"AZL-108927"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"last_affected": "6.6.157.1-1"
}
]
}
],
"package": {
"name": "kernel",
"purl": "pkg:rpm/azure-linux/kernel",
"ecosystem": "Azure Linux:3"
},
"database_specific": {
"source": "https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-108927.json"
}
}
],
"modified": "2026-10-27T05:36:16Z",
"provider": "osv",
"upstream": [
"CVE-2026-98575"
],
"references": [
"https://nvd.nist.gov/vuln/detail/CVE-2026-98575"
]
},
"related_cves": [
{
"value": "CVE-2026-98575",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 460414,
"published_at": "2026-10-18T16:17:09+00:00"
}