Bug 2426248 (CVE-2023-54306)

Summary: CVE-2023-54306 kernel: net: tls: avoid hanging tasks on the tx_lock
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-12-30 13:19:14 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: tls: avoid hanging tasks on the tx_lock

syzbot sent a hung task report and Eric explains that adversarial
receiver may keep RWIN at 0 for a long time, so we are not guaranteed
to make forward progress. Thread which took tx_lock and went to sleep
may not release tx_lock for hours. Use interruptible sleep where
possible and reschedule the work if it can't take the lock.

Testing: existing selftest passes
Comment 1 Alexander B 2025-12-30 22:14:41 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123034-CVE-2023-54306-e40f@gregkh/T