CVE-2026-74429

rxrpc: Fix the reception of a reply packet before data transmission

HIGH
7.5
CVSS Score
Published: August 15, 2026 at 05:59 AM UTC
Updated: August 17, 2026 at 06:19 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.5
Exploit prediction
EPSS 0.6%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.14 ≤ v < 6.18.406.14 ≤ v < 7.1.56.14 ≤ v < 7.26.14b341a0263b1b804d329f864c2dc24815364510ec
Vendor states this is fixed in a58e33405acd2584e730c1da72635f822ada6b49 (fixed)
Vendor states this is fixed in e220ae559e5a0fc33e41ec6a348ea50387cb8b0f (fixed)
Vendor states this is fixed in f9be514984471ff0003738b2e1efed12bc3433ff (fixed)
Vendor states this is fixed in 6.14 (unaffected)
Vendor states this is fixed in 6.18.40 (unaffected)
Vendor states this is fixed in 7.1.5 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

7.5HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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