CVE-2026-74429: rxrpc: Fix the reception of a reply packet before data transmission
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix the reception of a reply packet before data transmission
Fix rxrpcreceivingreply() to handle the reception of an apparent reply DATA packet before rxrpc has had a chance to send any request DATA packets on a client call by checking to see if the call has been exposed yet by sending the first packet.
Without this, rxrpcrotatetxwindow() might oops.
Also fix rxrpcrotatetxwindow() to handle the Tx queue being empty by changing the do...while loop into a while loop, just in case a call is abnormally terminated by an early reply before the last request packet is transmitted.
Event History
Frequently Asked Questions
What is the severity of CVE-2026-74429?
CVE-2026-74429 has a severity rating of 44.
What type of vulnerability is CVE-2026-74429?
CVE-2026-74429 is a vulnerability related to the reception of reply packets in the Linux kernel's rxrpc implementation.
How do I fix CVE-2026-74429?
To fix CVE-2026-74429, apply the latest patch or update for the Linux kernel that addresses this vulnerability.
Who is affected by CVE-2026-74429?
CVE-2026-74429 affects systems running vulnerable versions of the Linux kernel that utilize the rxrpc protocol.
What is the impact of CVE-2026-74429?
The impact of CVE-2026-74429 may include potential issues with data transmission reliability and client-server communication within the affected systems.