Description: dccp/tcp: Unhash sk from ehash for tb2 alloc failure after check_estalblished().
References:
Notes:
 carnil> Introduced in 28044fc1d495 ("net: Add a bhash2 table hashed by port and
 carnil> address"). Vulnerable versions: 6.1-rc1.
Bugs:
upstream: released (6.8-rc6) [66b60b0c8c4a163b022a9f0ad6769b0fd3dc662f]
6.7-upstream-stable: released (6.7.7) [f8c4a6b850882bc47aaa864b720c7a2ee3102f39]
6.6-upstream-stable: released (6.6.19) [334a8348b2df26526f3298848ad6864285592caf]
6.1-upstream-stable: released (6.1.80) [729bc77af438a6e67914c97f6f3d3af8f72c0131]
5.10-upstream-stable: N/A "Vulnerable code not present"
4.19-upstream-stable: N/A "Vulnerable code not present"
sid: released (6.7.7-1)
6.1-bookworm-security: released (6.1.82-1)
5.10-bullseye-security: N/A "Vulnerable code not present"
4.19-buster-security: N/A "Vulnerable code not present"