CVE-2026-68351 (GCVE-0-2026-68351)
Vulnerability from cvelistv5
Published
2026-08-10 12:03
Modified
2026-08-19 16:33
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read
When the firmware sends a command response with a length mismatch,
carl9170_cmd_callback() logs the mismatch and calls carl9170_restart()
but then falls through to memcpy(ar->readbuf, buffer + 4, len - 4).
Since len comes from the firmware and can exceed ar->readlen, this
copies more data than the readbuf was allocated for.
Bound the memcpy to min(len - 4, ar->readlen) so that the response
is still completed -- avoiding repeated restarts from queued garbage --
while preventing an overread past the response buffer.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: a84fab3cbfdc427e7d366f1cc844f27b2084c26c Version: a84fab3cbfdc427e7d366f1cc844f27b2084c26c Version: a84fab3cbfdc427e7d366f1cc844f27b2084c26c Version: a84fab3cbfdc427e7d366f1cc844f27b2084c26c Version: a84fab3cbfdc427e7d366f1cc844f27b2084c26c Version: a84fab3cbfdc427e7d366f1cc844f27b2084c26c Version: a84fab3cbfdc427e7d366f1cc844f27b2084c26c Version: a84fab3cbfdc427e7d366f1cc844f27b2084c26c |
||
{
"containers": {
"cna": {
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{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/wireless/ath/carl9170/rx.c"
],
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"vendor": "Linux",
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{
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.37"
},
{
"lessThan": "2.6.37",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.265",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.216",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.183",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.148",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.101",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.42",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
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"cpeMatch": [
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"vulnerable": true
},
{
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}
],
"negate": false,
"operator": "OR"
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}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: carl9170: bound memcpy length in cmd callback to prevent OOB read\n\nWhen the firmware sends a command response with a length mismatch,\ncarl9170_cmd_callback() logs the mismatch and calls carl9170_restart()\nbut then falls through to memcpy(ar-\u003ereadbuf, buffer + 4, len - 4).\nSince len comes from the firmware and can exceed ar-\u003ereadlen, this\ncopies more data than the readbuf was allocated for.\n\nBound the memcpy to min(len - 4, ar-\u003ereadlen) so that the response\nis still completed -- avoiding repeated restarts from queued garbage --\nwhile preventing an overread past the response buffer."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-19T16:33:53.098Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/38e240996a6a78c94ab07d461fd66e361d55c3c4"
},
{
"url": "https://git.kernel.org/stable/c/2d05c321d27624c413c950278d2dc8e0f44a8950"
},
{
"url": "https://git.kernel.org/stable/c/525036b20ef01d814a7fcd0567d123992e4479fa"
},
{
"url": "https://git.kernel.org/stable/c/f74e34e66379e487a09009a4f2d42470051672bd"
},
{
"url": "https://git.kernel.org/stable/c/500c36649f270de05a56591fcc1aaaa36687958e"
},
{
"url": "https://git.kernel.org/stable/c/9aee949c68dc6dccbc54333537b109c53fe2079f"
},
{
"url": "https://git.kernel.org/stable/c/cb7a38810cf25738176dac32dec7a146b3f959cf"
},
{
"url": "https://git.kernel.org/stable/c/4cde55b2feff9504d1f993ab80e84e7ccb62791c"
}
],
"title": "wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-68351",
"datePublished": "2026-08-10T12:03:28.312Z",
"dateReserved": "2026-07-30T09:28:09.384Z",
"dateUpdated": "2026-08-19T16:33:53.098Z",
"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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