Answer in brief
CVE-2026-98693 records a Unknown severity vulnerability in thunderbolt: Hold a router reference for each allocated HopID. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d6d458d42e1e1544a18f37f1d5c840e00d5261b9 <c444d2c17dc236680324fd989232199680a6c419 || >=d6d458d42e1e1544a18f37f1d5c840e00d5261b9 <2b5f976119d8f099a03cbf700df3d9c8690fe33d || >=d6d458d42e1e1544a18f37f1d5c840e00d5261b9 <032c59c7681c661b63123231824170c025afb7e7 | c444d2c17dc236680324fd989232199680a6c419, 2b5f976119d8f099a03cbf700df3d9c8690fe33d, 032c59c7681c661b63123231824170c025afb7e7 |
| Linux/Linuxgeneric | 6.14 | Not reported |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 18, 2026
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Hold a router reference for each allocated HopID tb_stop() drops the reference to all DP tunnels but does not deactivate them, thus nothing cancels a dprx_work still in flight (which holds its own tunnel reference) and the tunnel can outlive tb_switch_remove(). The HopID releases in tb_path_free() then operate on freed IDAs and trigger warnings like ida_free called for id=8 which is not allocated. This can be triggered by unbinding the driver while a DP tunnel is still waiting for the DPRX capabilities read to finish. On the Apple NHI unplugging the cable runs into just that reliably because the read can never finish right now and because the unplug powers down the entire USB4 complex and removes the NHI device. Take a router reference whenever an input or output HopID is allocated and drop it again after the HopID is released. This keeps the ports and their HopID IDAs alive for as long as they are used. The KUnit tests allocate routers without ever registering their devices so initialize the embedded struct device there as well and drop its initial reference when the test is finished.
Quoted source text, attributed separately from HOL analysis.