CVE-2026-89543

A flaw was found in the kernel's sunrpc component. A use-after-free vulnerability can occur due to improper handling of clnt-pipefssb pointers during mount and unmount events. This can lead to stale pointers, which, when accessed, may result in a system crash Denial of Service...

CVE-2026-89543 sunrpc: fix use-after-free in __rpc_clnt_handle_event and __rpc_clnt_remove_pipedir

In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix use-after-free in rpcclnthandleevent and rpcclntremovepipedir Normal client creation goes through rpcsetuppipedir, which records clnt-pipefssb, but the mount-event path in rpcclnthandleevent calls rpcsetuppipedirsb...