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Q1What is this vulnerability? (Essence + Consequences)
๐จ **Essence**: A Use-After-Free (UAF) bug in `tls_do_encryption` error path (`-EBUSY`). <br>๐ฅ **Consequences**: Leads to double cleanup of `encrypt_pending` and scatterlist entries.โฆ
๐ ๏ธ **Flaw**: Memory management error in the Linux Kernel TLS subsystem. <br>๐ **CWE**: Implicitly **CWE-416** (Use After Free) due to the 'double free' description.โฆ
๐ฅ๏ธ **Vendor**: Linux (Linux Foundation). <br>๐ฆ **Product**: Linux Kernel. <br>๐ **Affected**: All versions prior to the stable fixes published on **2026-04-23**.โฆ
๐ **Privileges**: Can escalate to **Root/Kernel** level. <br>๐ **Data**: Full **Confidentiality** (C:H), **Integrity** (I:H), and **Availability** (A:H) impact.โฆ
๐ **Check**: Scan for Linux Kernel versions released before **April 23, 2026**. <br>๐ก **Monitor**: Look for TLS-related kernel panics or crashes in logs.โฆ