Description: list corruption and memory leak in llcp_sock_connect() for non-blocking socket
References:
 https://www.openwall.com/lists/oss-security/2020/11/01/1
 https://lore.kernel.org/lkml/20210303061654.127666-5-nixiaoming@huawei.com/
Notes:
 bwh> Not sure how far back this goes, but 4.9 seems to have the issue
 carnil> Possibly 4b5db93e7f2a ("nfc: Avoid endless loops caused by
 carnil> repeated llcp_sock_connect()") is the only part of the problem
 carnil> which can be properly fixed? That commit would then be in 5.12-rc7
 carnil> and was backported to 5.10.30, 4.19.187 and 4.9.267. Other seem to
 carnil> have it classified as such and follow Ubuntu's tracking.
Bugs:
upstream: released (5.12-rc7) [4b5db93e7f2afbdfe3b78e37879a85290187e6f1]
5.10-upstream-stable: released (5.10.30) [a12a2fa9a129d3200065fde95f6eb0a98672a2c3]
4.19-upstream-stable: released (4.19.187) [eab391e0766ed88262160b14bb7131f331f6af1a]
4.9-upstream-stable: released (4.9.267) [7f6c9e4314aa7d90b6261b8ae571d14c454ba964]
sid: released (5.10.38-1)
5.10-bullseye-security: N/A "Fixed before branching point"
4.19-buster-security: released (4.19.194-1)
4.9-stretch-security: released (4.9.272-1)