CVE-2025-38187

Summary

In the Linux kernel, the following vulnerability has been resolved:

drm/nouveau: fix a use-after-free in r535_gsp_rpc_push()

The RPC container is released after being passed to r535_gsp_rpc_send().

When sending the initial fragment of a large RPC and passing the caller's RPC container, the container will be freed prematurely. Subsequent attempts to send remaining fragments will therefore result in a use-after-free.

Allocate a temporary RPC container for holding the initial fragment of a large RPC when sending. Free the caller's container when all fragments are successfully sent.

[ Rebase onto Blackwell changes. - Danilo ]

Affected Software

VendorProductVersion RangeStatus
LinuxLinux176fdcbddfd288408ce8571c1760ad618d962096 < cd4677407c0ee250fc21e36439c8a442ddd62cc1affected
LinuxLinux176fdcbddfd288408ce8571c1760ad618d962096 < 9802f0a63b641f4cddb2139c814c2e95cb825099affected
LinuxLinux6.7affected
LinuxLinux0 < 6.7unaffected
LinuxLinux6.15.4 <= 6.15.*unaffected
LinuxLinux6.16 <= *unaffected

Weaknesses

References