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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74429
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:22:45 UTC
Updated2026-08-15 06:22:45 UTC
DescriptionIn 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.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected b341a0263b1b804d329f864c2dc24815364510ec f9be514984471ff0003738b2e1efed12bc3433ff git Not specified
CNA Linux Linux affected b341a0263b1b804d329f864c2dc24815364510ec e220ae559e5a0fc33e41ec6a348ea50387cb8b0f git Not specified
CNA Linux Linux affected b341a0263b1b804d329f864c2dc24815364510ec a58e33405acd2584e730c1da72635f822ada6b49 git Not specified
CNA Linux Linux affected 6.14 Not specified
CNA Linux Linux unaffected 6.14 semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/a58e33405acd2584e730c1da72635f822ada6b49 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f9be514984471ff0003738b2e1efed12bc3433ff 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e220ae559e5a0fc33e41ec6a348ea50387cb8b0f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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