CVE-2026-90252: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: free the HCI command when it is cancelled mgmt_hci_cmd_sync() queues the pending command with a NULL destroy callback, so it is only freed if send_hci_cmd_sync() runs. A cancelled entry is leaked, as _hci_cmd_sync_cancel_entry() does not release entry->data when there is no destroy callback, and hci_cmd_sync_clear() cancels every pending entry when the controller is unregistered. Nothing else reclaims it either: mgmt_pending_new() does not put the command on hdev->mgmt_pending. The leak also pins the socket reference taken by mgmt_pending_new(), so the mgmt socket is never released. Free the command from a destroy callback. The now-empty done label is replaced by a direct return.

Засегнати продукти

• Linux Linux: 827af4787e74e8df9e8e0677a69fbb15e0856d2f преди e0cd7b34dc6b5414cac3d4cd376f73d3e9ffbd93; 827af4787e74e8df9e8e0677a69fbb15e0856d2f преди 481533b03985177ddc805e0bd12fc07e7adf9040; 827af4787e74e8df9e8e0677a69fbb15e0856d2f преди 414b365ecea6c30357adee6b8a7c5edc03a03575
• Linux Linux: 6.13; преди 6.13; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-90252
• https://nvd.nist.gov/vuln/detail/CVE-2026-90252
• https://git.kernel.org/stable/c/e0cd7b34dc6b5414cac3d4cd376f73d3e9ffbd93
• https://git.kernel.org/stable/c/481533b03985177ddc805e0bd12fc07e7adf9040
• https://git.kernel.org/stable/c/414b365ecea6c30357adee6b8a7c5edc03a03575