CVE-2022-50736

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix immediate work request flush to completion queue Correctly set send queue element opcode during immediate work request flushing in post sendqueue operation, if the QP is in ERROR state. An undefined ocode value results in out-of-bounds access to an array for mapping the opcode between siw internal and RDMA core representation in work completion generation. It resulted in a KASAN BUG report of type 'global-out-of-bounds' during NFSoRDMA testing. This patch further fixes a potential case of a malicious user which may write undefined values for completion queue elements status or opcode, if the CQ is memory mapped to user land. It avoids the same out-of-bounds access to arrays for status and opcode mapping as described above.

The following products are affected by CVE-2022-50736 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2022-50736.

URL	Resource
https://git.kernel.org/stable/c/355d2eca68c10d713a42f68e62044b3d1c300471
https://git.kernel.org/stable/c/6af043089d3f1210776d19b6fdabea610d4c7699
https://git.kernel.org/stable/c/75af03fdf35acf15a3977f7115f6b8d10dff4bc7
https://git.kernel.org/stable/c/bdf1da5df9da680589a7f74448dd0a94dd3e1446
https://git.kernel.org/stable/c/f3d26a8589dfdeff328779b511f71fb90b10005e
https://git.kernel.org/stable/c/f8d8fbd3b6d6cc3f25790cca5cffe8ded512fef6
https://lore.kernel.org/linux-cve-announce/2025122422-CVE-2022-50736-1cb3@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2022-50736
https://www.cve.org/CVERecord?id=CVE-2022-50736