CVE-2026-43021 PUBLISHED

Bluetooth: hci_sync: fix leaks when hci_cmd_sync_queue_once fails

Assigner: Linux
Reserved: 01.05.2026 Published: 01.05.2026 Updated: 02.05.2026

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hci_sync: fix leaks when hci_cmd_sync_queue_once fails

When hci_cmd_sync_queue_once() returns with error, the destroy callback will not be called.

Fix leaking references / memory on these failures.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from a106e50be74b0896583f4d010a69f9806e4194f4 to 7fd74178d4b16dcf47179da634ea9d7c02e3608b (excl.)
  • affected from a106e50be74b0896583f4d010a69f9806e4194f4 to aca377208e7f7322bf4e107cdec6e7d7e8aa7a88 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.19 is affected
  • unaffected from 0 to 6.19 (excl.)
  • unaffected from 6.19.12 to 6.19.* (incl.)
  • unaffected from 7.0 to * (incl.)

References