High severity8.8NVD Advisory· Published May 1, 2026· Updated May 8, 2026
CVE-2026-43018
CVE-2026-43018
Description
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_event: fix potential UAF in hci_le_remote_conn_param_req_evt
hci_conn lookup and field access must be covered by hdev lock in hci_le_remote_conn_param_req_evt, otherwise it's possible it is freed concurrently.
Extend the hci_dev_lock critical section to cover all conn usage.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 6 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=5.17,<6.1.168
- cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
6- git.kernel.org/stable/c/1d0bdbfe3e91c11f0a704c52443a9446a10d699cnvdPatch
- git.kernel.org/stable/c/59eecf0ffde15670e6a5e10c47be67f73d843b20nvdPatch
- git.kernel.org/stable/c/5fb69e1eeea9d6cba80517e9f058b56b34bc3a81nvdPatch
- git.kernel.org/stable/c/7cadb03be37e761130edb153544fe0770a842b19nvdPatch
- git.kernel.org/stable/c/b255531b27da336571411248c2a72a350662bd09nvdPatch
- git.kernel.org/stable/c/ea3cd36d7382d5f8309df04c275d20df139ed42cnvdPatch
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