Commit bb2359f4 authored Jun 01, 2020 by Denis Efremov Committed by Alexei Starovoitov Jun 01, 2020

bpf: Change kvfree to kfree in generic_map_lookup_batch()



buf_prevkey in generic_map_lookup_batch() is allocated with
kmalloc(). It's safe to free it with kfree().

Fixes: cb4d03ab ("bpf: Add generic support for lookup batch op")
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20200601162814.17426-1-efremov@linux.com


Signed-off-by: Alexei Starovoitov <ast@kernel.org>

parent 7b805819

kernel/bpf/syscall.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1399,7 +1399,7 @@ int generic_map_lookup_batch(struct bpf_map *map,

		buf = kmalloc(map->key_size + value_size, GFP_USER \| __GFP_NOWARN);
		if (!buf) {
		kvfree(buf_prevkey);
		kfree(buf_prevkey);
		return -ENOMEM;
		}

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