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| author | Lorenz Bauer <lmb@cloudflare.com> | 2021-09-22 12:11:52 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-10-06 15:55:55 +0200 |
| commit | 59efda5073abb4fff2ce8c90ca9c2d25882e84a4 (patch) | |
| tree | 87cf6dd581420d943939186326f852710c67ae0a /tools | |
| parent | f908072391a653776d7ce9e23d63d3789a6c4b7d (diff) | |
bpf: Exempt CAP_BPF from checks against bpf_jit_limit
[ Upstream commit 8a98ae12fbefdb583a7696de719a1d57e5e940a2 ]
When introducing CAP_BPF, bpf_jit_charge_modmem() was not changed to treat
programs with CAP_BPF as privileged for the purpose of JIT memory allocation.
This means that a program without CAP_BPF can block a program with CAP_BPF
from loading a program.
Fix this by checking bpf_capable() in bpf_jit_charge_modmem().
Fixes: 2c78ee898d8f ("bpf: Implement CAP_BPF")
Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210922111153.19843-1-lmb@cloudflare.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions