CVE-2026-45856

A flaw was found in the Linux kernel's Remote Direct Memory Access RDMA subsystem, specifically within the ibuverbspostsend function. A local user can exploit this vulnerability by providing an invalid work queue element size wqesize from userspace without proper validation. This can lead to an...

SUSE CVE-2026-45856

In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Validate wqesize before using it in ibuverbspostsend ibuverbspostsend uses cmd.wqesize from userspace without any validation before passing it to kmalloc and using the allocated buffer as struct ibuverbssendwr. If a...

UBUNTU-CVE-2026-45856

In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Validate wqesize before using it in ibuverbspostsend ibuverbspostsend uses cmd.wqesize from userspace without any validation before passing it to kmalloc and using the allocated buffer as struct ibuverbssendwr. If a...

CVE-2026-45856

The CVE-2026-45856 issue affects the Linux kernel's RDMA/uverbs subsystem, specifically ib_uverbs_post_send. The vulnerability arises when cmd.wqe_size from userspace is not validated before kmalloc and using the allocated memory as struct ib_uverbs_send_wr, allowing an out-of-bounds read of kern...

CVE-2026-45856

In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Validate wqesize before using it in ibuverbspostsend ibuverbspostsend uses cmd.wqesize from userspace without any validation before passing it to kmalloc and using the allocated buffer as struct ibuverbssendwr. If a...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the RDMA uverbs module not verifying the wqesize value in the ibuverbspostsend function. This cou...

Linux Distros Unpatched Vulnerability : CVE-2026-45856

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - RDMA/uverbs: Validate wqesize before using it in ibuverbspostsend ibuverbspostsend uses cmd.wqesize from userspace without any validation before passing it to...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Prevention of integer overflow issues In the expression “cmd.wqesize cmd.wrcount”, both variables are u32 values provided by the user. This multiplication can lead to integer wrapping. We then pass the result to...

DEBIAN-CVE-2024-57890

In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Prevent integer overflow issue In the expression "cmd.wqesize cmd.wrcount", both variables are u32 values that come from the user so the multiplication can lead to integer wrapping. Then we pass the result to...

UBUNTU-CVE-2024-57890

In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Prevent integer overflow issue In the expression "cmd.wqesize cmd.wrcount", both variables are u32 values that come from the user so the multiplication can lead to integer wrapping. Then we pass the result to...