tls: stop recv() if initial process_rx_list gave us non-DATA

Summary

In the Linux kernel, the following vulnerability has been resolved: tls: stop recv() if initial process_rx_list gave us non-DATA If we have a non-DATA record on the rx_list and another record of the same type still on the queue, we will end up merging them: • process_rx_list copies the non-DATA record • we start the loop and process the first available record since it's of the same type • we break out of the loop since the record was not DATA Just check the record type and jump to the end in case process_rx_list did some work.

Timeline

1. Aug 22, 2025, 1:01 PM UTCCVE published
2. Oct 15, 2026, 9:42 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: yes · Technical impact: partial

3. Oct 15, 2026, 9:51 PM UTCRecord last updated

Affected versions

• Linux Linux

  From 692d7b5d1f9125a1cf0595e979e3b5fb7210547e · fixed in f310143961e2d9a0479fca117ce869f8aaecc140; From 692d7b5d1f9125a1cf0595e979e3b5fb7210547e · fixed in 31e10d6cb0c9532ff070cf50da1657c3acee9276; From 692d7b5d1f9125a1cf0595e979e3b5fb7210547e · fixed in 4338032aa90bd1d5b33a4274e8fa8347cda5ee09; From 692d7b5d1f9125a1cf0595e979e3b5fb7210547e · fixed in 6756168add1c6c3ef1c32c335bb843a5d1f99a75; From 692d7b5d1f9125a1cf0595e979e3b5fb7210547e · fixed in 3b952d8fdfcf6fd8ea0b8954bc9277642cf0977f; From 692d7b5d1f9125a1cf0595e979e3b5fb7210547e · fixed in a4ed943882a8fc057ea5a67643314245e048bbdd; From 692d7b5d1f9125a1cf0595e979e3b5fb7210547e · fixed in fdfbaec5923d9359698cbb286bc0deadbb717504

• Linux Linux

  5.1

• KernelLinux

  From 5.1.0 · fixed in 5.4.270; From 5.5.0 · fixed in 5.10.211; From 5.11.0 · fixed in 5.15.150; From 5.16.0 · fixed in 6.1.80; From 6.2.0 · fixed in 6.6.19; From 6.7.0 · fixed in 6.7.7

References 7