一、 漏洞 CVE-2025-38544 基础信息
漏洞信息
                                        # rxrpc：预分配碰撞修复漏洞

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漏洞标题
rxrpc: Fix bug due to prealloc collision
来源：美国国家漏洞数据库 NVD
漏洞描述信息
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix bug due to prealloc collision When userspace is using AF_RXRPC to provide a server, it has to preallocate incoming calls and assign to them call IDs that will be used to thread related recvmsg() and sendmsg() together. The preallocated call IDs will automatically be attached to calls as they come in until the pool is empty. To the kernel, the call IDs are just arbitrary numbers, but userspace can use the call ID to hold a pointer to prepared structs. In any case, the user isn't permitted to create two calls with the same call ID (call IDs become available again when the call ends) and EBADSLT should result from sendmsg() if an attempt is made to preallocate a call with an in-use call ID. However, the cleanup in the error handling will trigger both assertions in rxrpc_cleanup_call() because the call isn't marked complete and isn't marked as having been released. Fix this by setting the call state in rxrpc_service_prealloc_one() and then marking it as being released before calling the cleanup function.
来源：美国国家漏洞数据库 NVD
CVSS信息
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来源：美国国家漏洞数据库 NVD
漏洞类别
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来源：美国国家漏洞数据库 NVD
二、漏洞 CVE-2025-38544 的公开POC
# POC 描述 源链接 神龙链接
三、漏洞 CVE-2025-38544 的情报信息
四、漏洞 CVE-2025-38544 的评论

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