kernel: Linux kernel: Denial of Service via unsafe requeue in rxrpc_recvmsg

A flaw was found in the Linux kernel. A local unprivileged process can exploit an unsafe requeue path in the rxrpcrecvmsg function by using AFRXRPC sockets with MSGDONTWAIT and MSGPEEK flags. This improper handling of the receive message queue can lead to memory corruption, such as Use-After-Free...

EUVD-2026-5478

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix recvmsg unconditional requeue If rxrpcrecvmsg fails because MSGDONTWAIT was specified but the call at the front of the recvmsg queue already has its mutex locked, it requeues the call - whether or not the call is alrea...

PT-2026-6136

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw within the rxrpc subsystem related to the handling of recvmsg calls. Specifically, an unconditional requeue of calls can occur if MSG DONTWAIT is specifi...

Privilege Escalation

dovecot is vulnerable to privilege escalation. A flaw was found in the Dovecot ACL plug-in. User with only insert permissions for a mailbox could use the "COPY" and "APPEND" commands to set additional message flags...

PT-2016-5892 · Hdf +1 · Hdf5 +1

Name of the Vulnerable Software and Affected Versions: HDF5 version 1.8.16 Description: The issue arises from the library's failure to check if certain message types support a particular flag. As a result, the library will cast the structure to an alternative structure and then assign to fields...

dovecot privilege escalation

User can save message flags without having permissions...