CVE-2026-74429

High

Description

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix the reception of a reply packet before data transmission Fix rxrpc_receiving_reply() 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, rxrpc_rotate_tx_window() might oops. Also fix rxrpc_rotate_tx_window() 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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductLinux
PublishedAug 15, 2026
First seenAug 15, 2026

How to fix

Update
  • Linux Linuxf9be514984471ff0003738b2e1efed12bc3433ff, e220ae559e5a0fc33e41ec6a348ea50387cb8b0f, a58e33405acd2584e730c1da72635f822ada6b49 or later

Affected products

ProductAffected versionsFixed in
Linux Linuxb341a0263b1b804d329f864c2dc24815364510ec ≤ v < f9be514984471ff0003738b2e1efed12bc3433ff, b341a0263b1b804d329f864c2dc24815364510ec ≤ v < e220ae559e5a0fc33e41ec6a348ea50387cb8b0f, b341a0263b1b804d329f864c2dc24815364510ec ≤ v < a58e33405acd2584e730c1da72635f822ada6b49, 6.14f9be514984471ff0003738b2e1efed12bc3433ff, e220ae559e5a0fc33e41ec6a348ea50387cb8b0f, a58e33405acd2584e730c1da72635f822ada6b49

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