ipv6: fix EFAULT on sendto with icmpv6 and hdrincl

Nicolas Dichtel nicolas.dichtel at 6wind.com
Tue Aug 13 08:50:00 UTC 2019

Hi Ubuntu kernel team,

please, can you consider to cherry-pick the following linux upstream fixes:
59e3e4b52663 ("ipv6: use READ_ONCE() for inet->hdrincl as in ipv4")
b9aa52c4cb45 ("ipv6: fix EFAULT on sendto with icmpv6 and hdrincl")

They have been included in v5.2 and the patch that introduces the bug has been
included in v4.5.

Here is the launchpad entry:

Thank you,

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