https://github.com/torvalds/linux
Revision 352d20d611414715353ee65fc206ee57ab1a6984 authored by Peng Sun on 27 February 2019, 14:36:25 UTC, committed by Daniel Borkmann on 01 March 2019, 15:04:29 UTC
In bpf/syscall.c, map_create() first set map->usercnt to 1, a file
descriptor is supposed to return to userspace. When bpf_map_new_fd()
fails, drop the refcount.

Fixes: bd5f5f4ecb78 ("bpf: Add BPF_MAP_GET_FD_BY_ID")
Signed-off-by: Peng Sun <sironhide0null@gmail.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
1 parent 781e628
History
Tip revision: 352d20d611414715353ee65fc206ee57ab1a6984 authored by Peng Sun on 27 February 2019, 14:36:25 UTC
bpf: drop refcount if bpf_map_new_fd() fails in map_create()
Tip revision: 352d20d
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