CVE-2026-43018
8.8
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 95118dd4edfec950898a00180c6f998df0a6406d < 59eecf0ffde15670e6a5e10c47be67f73d843b20 | affected |
| Linux | Linux | 95118dd4edfec950898a00180c6f998df0a6406d < 5fb69e1eeea9d6cba80517e9f058b56b34bc3a81 | affected |
| Linux | Linux | 95118dd4edfec950898a00180c6f998df0a6406d < 7cadb03be37e761130edb153544fe0770a842b19 | affected |
| Linux | Linux | 95118dd4edfec950898a00180c6f998df0a6406d < 1d0bdbfe3e91c11f0a704c52443a9446a10d699c | affected |
| Linux | Linux | 95118dd4edfec950898a00180c6f998df0a6406d < ea3cd36d7382d5f8309df04c275d20df139ed42c | affected |
| Linux | Linux | 95118dd4edfec950898a00180c6f998df0a6406d < b255531b27da336571411248c2a72a350662bd09 | affected |
| Linux | Linux | 5.17 | affected |
| Linux | Linux | 0 < 5.17 | unaffected |
| Linux | Linux | 6.1.168 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.134 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.81 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.22 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.12 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/59eecf0ffde15670e6a5e10c47be67f73d843b20
- https://git.kernel.org/stable/c/5fb69e1eeea9d6cba80517e9f058b56b34bc3a81
- https://git.kernel.org/stable/c/7cadb03be37e761130edb153544fe0770a842b19
- https://git.kernel.org/stable/c/1d0bdbfe3e91c11f0a704c52443a9446a10d699c
- https://git.kernel.org/stable/c/ea3cd36d7382d5f8309df04c275d20df139ed42c
- https://git.kernel.org/stable/c/b255531b27da336571411248c2a72a350662bd09
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