Answer in brief
CVE-2026-68389 records a High severity (CVSS 8.8) vulnerability in Bluetooth: hci_qca: Clear memdump state on invalid dump size. 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.
CVSS is 8.8. 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 | >=06d3fdfcdf5cefb06f2024b9d3dad356779399cf <5a3945e8dea6c9a8ec9e981169ac9487e1d6ad6a || >=06d3fdfcdf5cefb06f2024b9d3dad356779399cf <069258d5111eed9ac9586bee42d03d38e2975715 || >=06d3fdfcdf5cefb06f2024b9d3dad356779399cf <cefb44c367b2b52e50f97bc8526d39df9bcf5e60 || >=06d3fdfcdf5cefb06f2024b9d3dad356779399cf <2363a757694752426fc47f3eadde15cf5f791fa5 || >=06d3fdfcdf5cefb06f2024b9d3dad356779399cf <bf587a10c33e5571a299742e45bc18960b9912e7 | 5a3945e8dea6c9a8ec9e981169ac9487e1d6ad6a, 069258d5111eed9ac9586bee42d03d38e2975715, cefb44c367b2b52e50f97bc8526d39df9bcf5e60, 2363a757694752426fc47f3eadde15cf5f791fa5, bf587a10c33e5571a299742e45bc18960b9912e7 |
| Linux/Linuxgeneric | 6.6 | Not reported |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_qca: Clear memdump state on invalid dump size qca_controller_memdump() allocates qca->qca_memdump before processing the first dump packet. For a sequence-zero packet it then disables IBS, marks memdump collection active, and reads the advertised dump size. If the controller reports a zero dump size, the error path frees the local qca_memdump object and returns without clearing qca->qca_memdump or undoing the collection state. A later memdump work item initializes its local pointer from qca->qca_memdump and skips allocation when that pointer is non-NULL, so it can operate on freed memory. The stale collection and IBS-disabled flags can also leave waiters or later transmit handling blocked behind an aborted dump. Clear the saved pointer and memdump state before returning from the invalid-size path, matching the cleanup used when hci_devcd_init() fails. A static analysis checker reported the stale memdump state, and manual source review confirmed the invalid-size failure path.
Quoted source text, attributed separately from HOL analysis.