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| author | Peng Sun <sironhide0null@gmail.com> | 2019-02-27 15:36:25 +0100 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2019-03-01 16:04:29 +0100 |
| commit | 352d20d611414715353ee65fc206ee57ab1a6984 (patch) | |
| tree | c856f1153a8c8551c974aa908088bdd1fe6499ac /kernel/bpf/tnum.c | |
| parent | bpf: decrease usercnt if bpf_map_new_fd() fails in bpf_map_get_fd_by_id() (diff) | |
| download | linux-352d20d611414715353ee65fc206ee57ab1a6984.tar.xz linux-352d20d611414715353ee65fc206ee57ab1a6984.zip | |
bpf: drop refcount if bpf_map_new_fd() fails in map_create()
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>
Diffstat (limited to 'kernel/bpf/tnum.c')
0 files changed, 0 insertions, 0 deletions