From 52a82ce3dd901a1536c7d7d9d963e9c2d761c816 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Thu, 1 Nov 2018 17:57:55 +0100 Subject: kernel: Copy patches from kernel 4.14 to 4.19 This just copies the files from the kernel 4.14 specific folders into the kernel 4.19 specific folder, no changes are done to the files in this commit. Signed-off-by: Hauke Mehrtens --- ...f_tables-fix-potential-NULL-ptr-deref-in-.patch | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 target/linux/generic/backport-4.19/334-v4.15-netfilter-nf_tables-fix-potential-NULL-ptr-deref-in-.patch (limited to 'target/linux/generic/backport-4.19/334-v4.15-netfilter-nf_tables-fix-potential-NULL-ptr-deref-in-.patch') diff --git a/target/linux/generic/backport-4.19/334-v4.15-netfilter-nf_tables-fix-potential-NULL-ptr-deref-in-.patch b/target/linux/generic/backport-4.19/334-v4.15-netfilter-nf_tables-fix-potential-NULL-ptr-deref-in-.patch new file mode 100644 index 0000000000..d140a33518 --- /dev/null +++ b/target/linux/generic/backport-4.19/334-v4.15-netfilter-nf_tables-fix-potential-NULL-ptr-deref-in-.patch @@ -0,0 +1,30 @@ +From: Hangbin Liu +Date: Mon, 25 Dec 2017 11:34:54 +0800 +Subject: [PATCH] netfilter: nf_tables: fix potential NULL-ptr deref in + nf_tables_dump_obj_done() + +If there is no NFTA_OBJ_TABLE and NFTA_OBJ_TYPE, the c.data will be NULL in +nf_tables_getobj(). So before free filter->table in nf_tables_dump_obj_done(), +we need to check if filter is NULL first. + +Fixes: e46abbcc05aa ("netfilter: nf_tables: Allow table names of up to 255 chars") +Signed-off-by: Hangbin Liu +Acked-by: Phil Sutter +Signed-off-by: Pablo Neira Ayuso +--- + +--- a/net/netfilter/nf_tables_api.c ++++ b/net/netfilter/nf_tables_api.c +@@ -5330,8 +5330,10 @@ static int nf_tables_dump_flowtable_done + if (!filter) + return 0; + +- kfree(filter->table); +- kfree(filter); ++ if (filter) { ++ kfree(filter->table); ++ kfree(filter); ++ } + + return 0; + } -- cgit v1.2.3