msm: ipa4: Fix dangling pointer dereferencing after NAT del cmd



Once after the dma free, assign the pointer with
NULL and reset mem allocated flag, to avoid
dangling pointer dereferencing.

Change-Id: I74a2c2b0589a576de7946e4e2244c7ef5cca975f
Signed-off-by: Mohammed Javid <mjavid@codeaurora.org>

parent 7d7c5b26

drivers/platform/msm/ipa/ipa_v3/ipa_nat.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1516,6 +1516,8 @@ int ipa3_del_nat_table(struct ipa_ioc_nat_ipv6ct_table_del *del)
		ipa3_ctx->nat_mem.pdn_mem.size,
		ipa3_ctx->nat_mem.pdn_mem.base,
		ipa3_ctx->nat_mem.pdn_mem.phys_base);
		ipa3_ctx->nat_mem.pdn_mem.base = NULL;
		ipa3_ctx->nat_mem.dev.is_mem_allocated = false;
		}

		ipa3_nat_ipv6ct_free_mem(&ipa3_ctx->nat_mem.dev);