Bluetooth: btintel_pcie: validate packet_len before skb_put_data
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel_pcie: validate packet_len before skb_put_data btintel_pcie_submit_rx_work() reads packet_len from rfh_hdr without checking if it exceeds the RX buffer size. An oversized packet_len can lead to an out-of-bounds read in skb_put_data(). Validate packet_len to ensure it is non-zero and does not exceed BTINTEL_PCIE_BUFFER_SIZE - sizeof(*rfh_hdr), logging an error when invalid. This issue was reported by Claude Mythos. It can be simulated either by using customized firmware configured to return an invalid packet_len or by modifying rfh_hdr->packet_len in the driver before calling btintel_pcie_submit_rx_work().
CVE-2026-97976
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-2026-97976
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": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e",
"lessThan": "ab0159b1f7214ce9bad9862751e4553e635a21b1",
"versionType": "git"
},
{
"status": "affected",
"version": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e",
"lessThan": "73a50c636425cb9f7ab647b5a97bd14dd5610076",
"versionType": "git"
},
{
"status": "affected",
"version": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e",
"lessThan": "46884c0f92708f1d218fc94d88800227a19b52f8",
"versionType": "git"
},
{
"status": "affected",
"version": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e",
"lessThan": "6436e1b5331b1aebf905c13e0880a37032719b75",
"versionType": "git"
}
],
"programFiles": [
"drivers/bluetooth/btintel_pcie.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.10"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.10",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/bluetooth/btintel_pcie.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-97976
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38111 · Revision 1
- Added to Heist Feed
- Publisher date