From e900d40afdb731d2270a5110833ae49192974355 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Tue, 14 Mar 2023 22:36:50 +0100 Subject: [PATCH] xtables-eb: fix crash when opts isn't reallocated opts may point to statically allocated memory. This fixes abort() from libc. Signed-off-by: Florian Westphal --- iptables/xtables-eb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/iptables/xtables-eb.c b/iptables/xtables-eb.c index 3a73e797..068dffd2 100644 --- a/iptables/xtables-eb.c +++ b/iptables/xtables-eb.c @@ -675,7 +675,8 @@ void nft_fini_eb(struct nft_handle *h) free(target->t); } - free(opts); + if (opts != ebt_original_options) + free(opts); nft_fini(h); xtables_fini(); -- 2.47.2