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authorTobias Klauser <tklauser@distanz.ch>2021-07-15 14:06:09 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-07-28 15:35:37 +0300
commit2fc8048265ce8a4357addac6874e2fad905134be (patch)
tree76c922149cc063fe41c7afd0af782636513e0252 /tools
parent3b5b0afd8d97b0e98e5dc91526414e9d27c08027 (diff)
downloadlinux-2fc8048265ce8a4357addac6874e2fad905134be.tar.xz
bpftool: Check malloc return value in mount_bpffs_for_pin
[ Upstream commit d444b06e40855219ef38b5e9286db16d435f06dc ] Fix and add a missing NULL check for the prior malloc() call. Fixes: 49a086c201a9 ("bpftool: implement prog load command") Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Acked-by: Roman Gushchin <guro@fb.com> Link: https://lore.kernel.org/bpf/20210715110609.29364-1-tklauser@distanz.ch Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/bpf/bpftool/common.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/bpf/bpftool/common.c b/tools/bpf/bpftool/common.c
index 65303664417e..6ebf2b215ef4 100644
--- a/tools/bpf/bpftool/common.c
+++ b/tools/bpf/bpftool/common.c
@@ -221,6 +221,11 @@ 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);