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authorTobias Klauser <tklauser@distanz.ch>2021-07-15 13:06:09 +0200
committerDaniel Borkmann <daniel@iogearbox.net>2021-07-15 20:01:36 +0200
commitd444b06e40855219ef38b5e9286db16d435f06dc (patch)
treefdf9d10f6aff6fb293f6cf22665fc66fda2151b7 /tools/bpf
parentbpf, sockmap, udp: sk_prot needs inuse_idx set for proc stats (diff)
downloadlinux-d444b06e40855219ef38b5e9286db16d435f06dc.tar.xz
linux-d444b06e40855219ef38b5e9286db16d435f06dc.zip
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 <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
Diffstat (limited to 'tools/bpf')
-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 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);