Skip to content
CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-43019

Bluetooth: hci_conn: fix potential UAF in set_cig_params_sync

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: fix potential UAF in set_cig_params_sync hci_conn lookup and field access must be covered by hdev lock in set_cig_params_sync, otherwise it's possible it is freed concurrently. Take hdev lock to prevent hci_conn from being deleted or modified concurrently. Just RCU lock is not suitable here, as we also want to avoid "tearing" in the configuration.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • a091289218202bc09d9b9caa8afcde1018584aec to < 7502c1cf303b69f71d085f5ff7251b0e1b0f09dfaffected
  • a091289218202bc09d9b9caa8afcde1018584aec to < 66d432e9b45bae7881ffcdb12cd8fd0bf254ef02affected
  • a091289218202bc09d9b9caa8afcde1018584aec to < 7d568fede8eac91161a60b710aa920abe9b0fb9faffected
  • a091289218202bc09d9b9caa8afcde1018584aec to < bad65b4b0a96139f023eadc28a33125963208449affected
  • a091289218202bc09d9b9caa8afcde1018584aec to < a2639a7f0f5bf7d73f337f8f077c19415c62ed2caffected
  • 3a273cd0f47dd672d37736e623849374f9ab9ce9affected
  • d8570c4c3f2a3e51b3c8b5e6ec898364c5c03062affected
  • 6.4.16 to < 6.5affected
  • 6.5.3 to < 6.6affected

Linux Linux

Default version status: affected

  • 6.6affected
  • 0 to < 6.6unaffected
  • 6.6.143 to ≤ 6.6.*unaffected
  • 6.12.81 to ≤ 6.12.*unaffected
  • 6.18.22 to ≤ 6.18.*unaffected
  • 6.19.12 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References