Bluetooth: hci_conn: fix CIS hold ownership on reuse
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: fix CIS hold ownership on reuse Commit 69997d50ec57 ("Bluetooth: ISO: handle bound CIS cleanup via hci_conn") made hci_bind_cis() and hci_connect_cis() return a connection with one hold for the ISO layer. hci_bind_cis() currently takes that hold only after configuring a CIS, so its BT_CONNECTED and matching BT_BOUND paths return a bare lookup result. Its configuration failure path can likewise call hci_conn_drop() before taking a hold. Take the hold before any state-dependent return or configuration error so every successful return follows the documented ownership contract and every error drop is balanced. hci_connect_cis() also assumes hci_conn_link() always takes a new CIS hold before dropping the one returned by hci_bind_cis(). However, the helper returns an existing link without taking another hold. In that case, preserve the CIS hold for the caller and drop the redundant LE hold because the existing link already owns its parent hold. Returning early also avoids changing an existing CIS back to BT_CONNECT.
CVE-2026-98462
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-2026-98462
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": "69997d50ec574be816b4ee8f9cee52ebbd53f8bd",
"lessThan": "10f959cb435217b4b407864e5be0eb779e389490",
"versionType": "git"
},
{
"status": "affected",
"version": "69997d50ec574be816b4ee8f9cee52ebbd53f8bd",
"lessThan": "072bc8659f22566083f8eef7dc5903bbcaf7804a",
"versionType": "git"
},
{
"status": "affected",
"version": "69997d50ec574be816b4ee8f9cee52ebbd53f8bd",
"lessThan": "3ff5a8d949e3a2a435d0a5ee05074cd371b0158a",
"versionType": "git"
},
{
"status": "affected",
"version": "69997d50ec574be816b4ee8f9cee52ebbd53f8bd",
"lessThan": "947eb2f41f70d371eb16897ee4e8e32bff73b476",
"versionType": "git"
},
{
"status": "affected",
"version": "69997d50ec574be816b4ee8f9cee52ebbd53f8bd",
"lessThan": "e06d549fcd4a0ba381ed67ddf1ab3c7a6ca4314c",
"versionType": "git"
}
],
"programFiles": [
"net/bluetooth/hci_conn.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.6"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.6",
"versionType": "semver"
},
{
"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": "6.18.55",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.9",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/bluetooth/hci_conn.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98462
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38515 · Revision 1
- Added to Heist Feed
- Publisher date