vulnerability

Red Hat: CVE-2024-50294: kernel: rxrpc: Fix missing locking causing hanging calls (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
Nov 19, 2024
Added
Jul 9, 2025
Modified
Nov 14, 2025

Description

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

rxrpc: Fix missing locking causing hanging calls

If a call gets aborted (e.g. because kafs saw a signal) between it being
queued for connection and the I/O thread picking up the call, the abort
will be prioritised over the connection and it will be removed from
local->new_client_calls by rxrpc_disconnect_client_call() without a lock
being held. This may cause other calls on the list to disappear if a race
occurs.

Fix this by taking the client_call_lock when removing a call from whatever
list its ->wait_link happens to be on.

Solutions

no-fix-redhat-rpm-packageredhat-upgrade-kernelredhat-upgrade-kernel-rt
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