CVE-2026-99100 (GCVE-0-2026-99100)
Vulnerability from cvelistv5
Published
2026-10-28 03:55
Modified
2026-10-28 03:55
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: p54: validate firmware record lengths
The p54 firmware parser accesses component ID and component version
records without checking that their lengths cover the fields being read.
A malformed record can therefore make the parser read past the record.
Validate the component ID and component version record lengths before
accessing their data. The descriptor record is also checked against the
shortest descriptor length found in the supported firmware images.
Reject descriptor values that underflow the RX offset or produce an empty
RX range before updating the driver state.
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/wireless/intersil/p54/fwio.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
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"versionType": "git"
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"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
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"status": "affected",
"version": "0",
"versionType": "semver"
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{
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"status": "affected",
"version": "0",
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{
"defaultStatus": "affected",
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"programFiles": [
"drivers/net/wireless/intersil/p54/fwio.c"
],
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"vendor": "Linux",
"versions": [
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"status": "unaffected",
"version": "6.18.59",
"versionType": "semver"
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{
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"status": "unaffected",
"version": "7.2.13",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
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{
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"vulnerable": true
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: p54: validate firmware record lengths\n\nThe p54 firmware parser accesses component ID and component version\nrecords without checking that their lengths cover the fields being read.\nA malformed record can therefore make the parser read past the record.\n\nValidate the component ID and component version record lengths before\naccessing their data. The descriptor record is also checked against the\nshortest descriptor length found in the supported firmware images.\n\nReject descriptor values that underflow the RX offset or produce an empty\nRX range before updating the driver state."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-28T03:55:38.898Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/f641066b0ddcd1b0cf007c0d04f9c966f6e888ae"
},
{
"url": "https://git.kernel.org/stable/c/8c4f962f368d5e17481f3c2c5a43028953e137a5"
},
{
"url": "https://git.kernel.org/stable/c/db7b86bd97b380ece8fa39cfdd7502a9fd35e56f"
}
],
"title": "wifi: p54: validate firmware record lengths",
"x_generator": {
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}
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"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2026-99100",
"datePublished": "2026-10-28T03:55:38.898Z",
"dateReserved": "2026-09-25T10:25:14.391Z",
"dateUpdated": "2026-10-28T03:55:38.898Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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