From d444b06e40855219ef38b5e9286db16d435f06dc Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Thu, 15 Jul 2021 13:06:09 +0200 Subject: bpftool: Check malloc return value in mount_bpffs_for_pin Fix and add a missing NULL check for the prior malloc() call. Fixes: 49a086c201a9 ("bpftool: implement prog load command") Signed-off-by: Tobias Klauser Signed-off-by: Daniel Borkmann Reviewed-by: Quentin Monnet Acked-by: Roman Gushchin Link: https://lore.kernel.org/bpf/20210715110609.29364-1-tklauser@distanz.ch --- tools/bpf/bpftool/common.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'tools') diff --git a/tools/bpf/bpftool/common.c b/tools/bpf/bpftool/common.c index 1828bba19020..dc6daa193557 100644 --- a/tools/bpf/bpftool/common.c +++ b/tools/bpf/bpftool/common.c @@ -222,6 +222,11 @@ int mount_bpffs_for_pin(const char *name) int err = 0; file = malloc(strlen(name) + 1); + if (!file) { + p_err("mem alloc failed"); + return -1; + } + strcpy(file, name); dir = dirname(file); -- cgit v1.2.3