thunderbolt: Tear down inactive DP tunnels when the domain is stopped
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Tear down inactive DP tunnels when the domain is stopped tb_stop() only tears down DMA tunnels so a DP tunnel that is still waiting for dprx_work to complete keeps that work queued while the routers are removed and the control channel is stopped. The work only stops once the DPRX timeout has passed and because it requeues itself until then the flush_workqueue() in tb_domain_remove() won't wait for its final run. The callback then runs against a domain that is already torn down. A reference to that domain is kept so the completion waiting for that domain to disappear in unbind will block until the timeout is eventually reached. Tear down DP tunnels that are not active yet as well which also cancels that work. Tunnels for displays that are already alive are untouched and keep working.
CVE-2026-98691
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-2026-98691
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": "d6d458d42e1e1544a18f37f1d5c840e00d5261b9",
"lessThan": "34a6e27c954e5bfc29fead17867c7155d54b6481",
"versionType": "git"
},
{
"status": "affected",
"version": "d6d458d42e1e1544a18f37f1d5c840e00d5261b9",
"lessThan": "cbd2abb85ea32cafdcbaba218e13b18d8ed79bfa",
"versionType": "git"
},
{
"status": "affected",
"version": "d6d458d42e1e1544a18f37f1d5c840e00d5261b9",
"lessThan": "0b457c6733f73421a3fb03786f13d67c618b5119",
"versionType": "git"
}
],
"programFiles": [
"drivers/thunderbolt/tb.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.14"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.14",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.56",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.10",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/thunderbolt/tb.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98691
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38691 · Revision 1
- Added to Heist Feed
- Publisher date