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2021-06-03T00:58:18.547916Z
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V 358
ipfilter: Fix ip_nat memory leak and use-after-free

Unfortunately the wrong elemet is freed, also resulting in use-after-free.

PR:		255859
Submitted by:	lylgood@foxmail.com
Reported by:	lylgood@foxmail.com

(cherry picked from commit 323a4e2c4e285e6f8eee8db3fe2cb7490a734da0)

Git Hash:   c8773c8018e74a34a5d9e7ec6d66f4311148f975
Git Author: cy@FreeBSD.org
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