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bpftool: Check malloc return value in mount_bpffs_for_pin
author
Tobias Klauser
<tklauser@distanz.ch>
Thu, 15 Jul 2021 11:06:09 +0000
(13:06 +0200)
committer
Daniel Borkmann
<daniel@iogearbox.net>
Thu, 15 Jul 2021 18:01:36 +0000
(20:01 +0200)
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
tools/bpf/bpftool/common.c
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diff --git
a/tools/bpf/bpftool/common.c
b/tools/bpf/bpftool/common.c
index 1828bba19020d6cce0df684c8d1c3c4e9dc73cc5..dc6daa193557a9c6647a18ed363fafcfb7026b8a 100644
(file)
--- 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);