CVE-2026-68389
CVE CVE-2026-68389EUVD EUVD-2026-55575Published 2026-08-10T12:04:08.000Z
What the advisory describes
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.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 6.6.148; patch: 7.2-rc4; 06d3fdfcdf5cefb06f2024b9d3dad356779399cf <2363a757694752426fc47f3eadde15cf5f791fa5; patch: 6.12.101; 06d3fdfcdf5cefb06f2024b9d3dad356779399cf <bf587a10c33e5571a299742e45bc18960b9912e7; patch: 0; 06d3fdfcdf5cefb06f2024b9d3dad356779399cf <cefb44c367b2b52e50f97bc8526d39df9bcf5e60; patch: 6.18.42; 06d3fdfcdf5cefb06f2024b9d3dad356779399cf <069258d5111eed9ac9586bee42d03d38e2975715; 6.6; 06d3fdfcdf5cefb06f2024b9d3dad356779399cf <5a3945e8dea6c9a8ec9e981169ac9487e1d6ad6a; patch: 7.1.6
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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