Bluetooth: ISO: clear iso_data always when detaching conn from hcon
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: clear iso_data always when detaching conn from hcon When setting conn->hcon = NULL, also conn->hcon->iso_data = NULL is necessary, otherwise later iso_conn_free() will UAF. Fix clearing of iso_data in iso_sock_disconn() Fixes KASAN: slab-use-after-free in iso_conn_hold_unless_zero on iso_sock_release() followed by hci_abort_conn_sync().
CVE-2026-74541
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-2026-74541
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": "fbdc4bc47268953c80853489f696e02d61f9a2c6",
"lessThan": "cc1d39946d62bc568551dfb81149724de1e91338",
"versionType": "git"
},
{
"status": "affected",
"version": "fbdc4bc47268953c80853489f696e02d61f9a2c6",
"lessThan": "7b51a9c25e9698b64df9f2218f10eecf7dc7e2d0",
"versionType": "git"
},
{
"status": "affected",
"version": "fbdc4bc47268953c80853489f696e02d61f9a2c6",
"lessThan": "63c0f396a18b767eb28e895eb95bbdce6c172c59",
"versionType": "git"
},
{
"status": "affected",
"version": "fbdc4bc47268953c80853489f696e02d61f9a2c6",
"lessThan": "69a4a7b162b3db6ac337e3094cdee38f24d42ff7",
"versionType": "git"
},
{
"status": "affected",
"version": "fbdc4bc47268953c80853489f696e02d61f9a2c6",
"lessThan": "d57e506f6a1e3929611340fae87c1e4823f4d85c",
"versionType": "git"
},
{
"status": "affected",
"version": "c03a10bd5b6ccb22921e04bcddc987410df7e7a9",
"versionType": "git"
},
{
"status": "affected",
"version": "6.5.12",
"lessThan": "6.6",
"versionType": "semver"
}
],
"programFiles": [
"net/bluetooth/iso.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": "6.6.151",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.103",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.44",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.8",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/bluetooth/iso.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-74541
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #33200 · Revision 1
- Added to Heist Feed
- Publisher date