Vulnerability in Linux

CVE-2023-54306

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

EPSS: 0.002 (7.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • Linux — versions 5.3.11, 6.2.5, 5.15.100

References

Frequently asked questions

What is CVE-2023-54306?
CVE-2023-54306 is a high-severity vulnerability in Linux. CVSS score: 7.5/10. Published 2025-12-30.
How severe is CVE-2023-54306?
High severity. CVSS v3 base score is 7.5 out of 10.