[release-branch.go1.21] net/netip: check if address is v6 mapped in Is methods
In all of the Is* methods, check if the address is a v6 mapped v4
address, and unmap it if so.
Thanks to Enze Wang of Alioth (@zer0yu) and Jianjun Chen of Zhongguancun
Lab (@chenjj) for reporting this issue.
Fixes #67680
Fixes #67681
Fixes CVE-2024-24790
Change-Id: I6bd03ca1a5d93a0b59027d861c84060967b265b0
Reviewed-on: https://go-internal-review.googlesource.com/c/go/+/1460
Reviewed-by: Russ Cox <rsc@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
(cherry picked from commit
f7f270c1621fdc7ee48e0487b2fac0356947d19b)
Reviewed-on: https://go-internal-review.googlesource.com/c/go/+/1500
Reviewed-by: Tatiana Bradley <tatianabradley@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/590315
Auto-Submit: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>