CVE-2026-63946

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix UAF in iso_recv_frame iso_recv_frame reads conn->sk under iso_conn_lock but releases the lock before using sk, with no reference held. A concurrent iso_sock_kill() can free sk in that window, causing use-after-free on sk->sk_state and sock_queue_rcv_skb(). Fix by replacing the bare pointer read with iso_sock_hold(conn), which calls sock_hold() while the spinlock is held, atomically elevating the refcount before the lock drops. Add a drop_put label so sock_put() is called on all exit paths where the hold succeeded.

• CWE-362
• CWE-416
• CWE-416

• https://git.kernel.org/stable/c/119fb6f80c44dc1c65d604cf28e64c56bd9b6568Patch
• https://git.kernel.org/stable/c/1a6b803b00ccdd7666506adbe01ddae1c72d1ca9Patch
• https://git.kernel.org/stable/c/47f23a259517abbdb8032c057a1e8a6bf3734878Patch
• https://git.kernel.org/stable/c/b04ec131325baf4ea4577d6c6e6b86cf092e3731Patch
• https://git.kernel.org/stable/c/c318aa51830a3d2cc1229968fe521441c97356cdPatch
• https://git.kernel.org/stable/c/c57ea90f203c8b8b41a474f19a09000d0f841436Patch

Published

Jul 19, 2026

Last Modified

Oct 28, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-63940In the Linux kernel, the following vulnerability has been re…9.3
• CVE-2026-63941In the Linux kernel, the following vulnerability has been re…8.8
• CVE-2026-63942In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-63943In the Linux kernel, the following vulnerability has been re…7.1
• CVE-2026-63944In the Linux kernel, the following vulnerability has been re…8.8
• CVE-2026-63945In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-63947In the Linux kernel, the following vulnerability has been re…8.8
• CVE-2026-63948In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-63949In the Linux kernel, the following vulnerability has been re…7.1
• CVE-2026-6395The Word 2 Cash plugin for WordPress is vulnerable to Cross-…6.1
• CVE-2026-63950In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-63951In the Linux kernel, the following vulnerability has been re…7.8