CVE-2025-38730

In the Linux kernel, the following vulnerability has been resolved: io_uring/net: commit partial buffers on retry Ring provided buffers are potentially only valid within the single execution context in which they were acquired. io_uring deals with this and invalidates them on retry. But on the networking side, if MSG_WAITALL is set, or if the socket is of the streaming type and too little was processed, then it will hang on to the buffer rather than recycle or commit it. This is problematic for two reasons: 1) If someone unregisters the provided buffer ring before a later retry, then the req->buf_list will no longer be valid. 2) If multiple sockers are using the same buffer group, then multiple receives can consume the same memory. This can cause data corruption in the application, as either receive could land in the same userspace buffer. Fix this by disallowing partial retries from pinning a provided buffer across multiple executions, if ring provided buffers are used.

• CWE-787

• https://git.kernel.org/stable/c/21a4ddb0f5e933f372808c10b9ac704505751bb1Patch
• https://git.kernel.org/stable/c/2eb7937b5fc7fcd90eab7bebb0181214b61b9283Patch
• https://git.kernel.org/stable/c/3b53dc1c641f2884d4750fc25aaf6c36b90db606Patch
• https://git.kernel.org/stable/c/41b70df5b38bc80967d2e0ed55cc3c3896bba781Patch
• https://git.kernel.org/stable/c/fe9da1812f8697a38f7e30991d568ec199e16059Patch

Published

Sep 4, 2025

Last Modified

Jul 30, 2026

Status

Modified

• 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-2025-38725In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2025-38726In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2025-38727In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2025-38728In the Linux kernel, the following vulnerability has been re…7.1
• CVE-2025-38729In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2025-3873The following APIs for the Silcon Labs SiWx91x prior to vesi…6
• CVE-2025-38731In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2025-38732In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2025-38733In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2025-38734In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2025-38735In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2025-38736In the Linux kernel, the following vulnerability has been re…7.1