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| author | Anton Protopopov <a.s.protopopov@gmail.com> | 2020-05-27 18:56:59 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-22 09:31:11 +0200 |
| commit | 215a256bc8dd7ef6bc52f3fd697027a7275d1c27 (patch) | |
| tree | 08fbc64518c9d9f7daabbd6d063c88af5fd3b52d /include | |
| parent | 0d55b7032ad1bde3a2e197c30a9f4c114c2b513d (diff) | |
bpf: Fix map permissions check
[ Upstream commit 1ea0f9120c8ce105ca181b070561df5cbd6bc049 ]
The map_lookup_and_delete_elem() function should check for both FMODE_CAN_WRITE
and FMODE_CAN_READ permissions because it returns a map element to user space.
Fixes: bd513cd08f10 ("bpf: add MAP_LOOKUP_AND_DELETE_ELEM syscall")
Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200527185700.14658-5-a.s.protopopov@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions