CVE-2026-31676: Linux, състезание за ресурс

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: rxrpc: only handle RESPONSE during service challenge Only process RESPONSE packets while the service connection is still in RXRPC_CONN_SERVICE_CHALLENGING. Check that state under state_lock before running response verification and security initialization, then use a local secured flag to decide whether to queue the secured-connection work after the state transition. This keeps duplicate or late RESPONSE packets from re-running the setup path and removes the unlocked post-transition state test.

Засегнати продукти

• Linux Linux: 17926a79320afa9b95df6b977b40cca6d8713cea преди a1a8efde03a40b6c658d580e96644d9b9a2a0d3a; 17926a79320afa9b95df6b977b40cca6d8713cea преди 6c3a0fbdafef8316e34ae22333e317a341e737cd; 17926a79320afa9b95df6b977b40cca6d8713cea преди 0afdfd4941c1b60a1f5c361760daa970edca60cd; 17926a79320afa9b95df6b977b40cca6d8713cea преди a6bcf8010af093fe04f7100562e9542ab7882585; 17926a79320afa9b95df6b977b40cca6d8713cea преди 29b44d904dceb832be880def08b8cb17a0aba91c; 17926a79320afa9b95df6b977b40cca6d8713cea преди d0035e634dae83237ab7f5681eb52b2f65d0ceb8; 17926a79320afa9b95df6b977b40cca6d8713cea преди 03fd2ef73cb4ffd0af100a95b634af54f474414e; 17926a79320afa9b95df6b977b40cca6d8713cea преди c43ffdcfdbb5567b1f143556df8a04b4eeea041c
• Linux Linux: 2.6.22; преди 2.6.22; 5.10.258 до 5.10.*; 5.15.209 до 5.15.*; 6.1.175 до 6.1.*; 6.6.136 до 6.6.*; 6.12.84 до 6.12.*; 6.18.23 до 6.18.*; 6.19.13 до 6.19.*; от 7.0 нататък
• Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem: всички версии

Вид слабост

• CWE-362 Неправилна синхронизация при споделен ресурс (Race Condition)

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-31676
• https://nvd.nist.gov/vuln/detail/CVE-2026-31676
• https://git.kernel.org/stable/c/a1a8efde03a40b6c658d580e96644d9b9a2a0d3a
• https://git.kernel.org/stable/c/6c3a0fbdafef8316e34ae22333e317a341e737cd
• https://git.kernel.org/stable/c/0afdfd4941c1b60a1f5c361760daa970edca60cd
• https://git.kernel.org/stable/c/a6bcf8010af093fe04f7100562e9542ab7882585
• https://git.kernel.org/stable/c/29b44d904dceb832be880def08b8cb17a0aba91c
• https://git.kernel.org/stable/c/d0035e634dae83237ab7f5681eb52b2f65d0ceb8
• https://git.kernel.org/stable/c/03fd2ef73cb4ffd0af100a95b634af54f474414e
• https://git.kernel.org/stable/c/c43ffdcfdbb5567b1f143556df8a04b4eeea041c
• https://cert-portal.siemens.com/productcert/html/ssa-784472.html