Re: [PATCH bpf] Revert "bpf: program: Refuse non-O_RDWR flags in BPF_OBJ_GET"
From: Lorenz Bauer <hidden>
Date: 2021-06-23 08:45:09
Also in:
bpf, lkml
On Fri, 18 Jun 2021 at 11:55, Maciej Żenczykowski [off-list ref] wrote:
From: Maciej Żenczykowski <redacted> This reverts commit d37300ed182131f1757895a62e556332857417e5. This breaks Android userspace which expects to be able to fetch programs with just read permissions. See: https://cs.android.com/android/platform/superproject/+/master:frameworks/libs/net/common/native/bpf_syscall_wrappers/include/BpfSyscallWrappers.h;drc=7005c764be23d31fa1d69e826b4a2f6689a8c81e;l=124
As a follow up, what does Android expect to be able to do with this read only FD? Lorenz -- Lorenz Bauer | Systems Engineer 6th Floor, County Hall/The Riverside Building, SE1 7PB, UK www.cloudflare.com