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bpftool: Check malloc return value in mount_bpffs_for_pin

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[ Upstream commit d444b06e40855219ef38b5e9286db16d435f06dc ]

Fix and add a missing NULL check for the prior malloc() call.

Fixes: 49a086c201 ("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>
This commit is contained in:
Tobias Klauser 2021-07-15 13:06:09 +02:00 committed by Greg Kroah-Hartman
parent 3b5b0afd8d
commit 2fc8048265
1 changed files with 5 additions and 0 deletions
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5
tools/bpf/bpftool/common.c
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@ -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);