Linux Kernel IPv6 ip6_xmit() Use-After-Free Fix

From this webpage screenshot, we can extract the following key information about the vulnerability: 1. Vulnerability Description: - Title: ipv6: prevent possible UAF in ip6_xmit() - Description: If returns NULL, the skb has already been freed, and associated / may also have been freed. We need to use to prevent a possible UAF (use-after-free). 2. Fix Measures: - Code Modification: Added and in the function to ensure remains accessible after being freed. - Patch Application: Applied to the file . 3. Fix Details: - Patch Application Location: , from commit c9627398ee to f227e662d1cfb. - Patch Application Code: 4. Fix Status: - Status: Fixed. - Patch Status: Applied. 5. Fixer: - Author: Eric Dumazet - Committer: Greg Kroah-Hartman 6. Fix Time: - Commit Time: 2024-08-20 16:08:59 +0000 7. Related Patches: - Upstream Patch: 2d5ff7e339d04622d8282661df36151906d0e1c7 - Fix Patch: 38a21c026ed2cc7232414cb166efc1923f34af17 8. Reviewers: - Reviewers: Vasily Averin , David Ahern , Jakub Kicinski , Sasha Levin 9. Patch Links: - Upstream Patch Link: https://patchwork..kernel.org/patch/20240820160859.38a21c026ed2cc7232414cb166efc1923f34af17/ These details comprehensively describe the vulnerability fix process, including code changes, patch application location, fixer, reviewers, and other critical information.

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Linux Kernel IPv6 ip6_xmit() Use-After-Free Fix