Bluetooth: hci_codec: validate vendor codec count length
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_codec: validate vendor codec count length The Read Local Supported Codecs parsers consume the variable-sized standard codec array before parsing the vendor codec count. Although the initial reply-size check includes a vendor count byte in the fixed layout, it does not guarantee that the byte remains after the standard codec array. If a controller reply ends immediately after that array, calculating the vendor codec array size reads vnd_codecs->num beyond the skb data. Use skb_pull_data() to validate and consume each codec header before using its count in both command variants.
CVE-2026-98247
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-2026-98247
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": "8961987f3f5fa2f2618e72304d013c8dd5e604a6",
"lessThan": "9c04b9a4d08b95dee901d24b7607c4cbd65fa0a8",
"versionType": "git"
},
{
"status": "affected",
"version": "8961987f3f5fa2f2618e72304d013c8dd5e604a6",
"lessThan": "a6da782fefae611e68a1aa79644065fc8ca5abcd",
"versionType": "git"
},
{
"status": "affected",
"version": "8961987f3f5fa2f2618e72304d013c8dd5e604a6",
"lessThan": "e4cfd3c4299105237458b27958bd7b0aa4c60795",
"versionType": "git"
},
{
"status": "affected",
"version": "8961987f3f5fa2f2618e72304d013c8dd5e604a6",
"lessThan": "f49a543d76d48f184b34225d9c0e2fc4cbdea8ec",
"versionType": "git"
},
{
"status": "affected",
"version": "8961987f3f5fa2f2618e72304d013c8dd5e604a6",
"lessThan": "12a82819b0cada6e304790b1097f8f9006eb6123",
"versionType": "git"
},
{
"status": "affected",
"version": "8961987f3f5fa2f2618e72304d013c8dd5e604a6",
"lessThan": "d0795cfd6f655f4de84868a4f4bb41a03f037b3d",
"versionType": "git"
}
],
"programFiles": [
"net/bluetooth/hci_codec.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.16"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.16",
"versionType": "semver"
},
{
"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": "6.18.54",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.8",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/bluetooth/hci_codec.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98247
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38327 · Revision 1
- Added to Heist Feed
- Publisher date