shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-09 04:10:18 +09:00
Code Issues Packages Projects Releases Wiki Activity

FROMLIST: [net-next,v2,2/2] bpf: Remove the capability check for cgroup skb eBPF

Browse Source 
program

Currently loading a cgroup skb eBPF program require a CAP_SYS_ADMIN
capability while attaching the program to a cgroup only requires the
user have CAP_NET_ADMIN privilege. We can escape the capability
check when load the program just like socket filter program to make
the capability requirement consistent.

Change since v1:
Change the code style in order to be compliant with checkpatch.pl
preference

(url: http://patchwork.ozlabs.org/patch/769460/)
Signed-off-by: Chenbo Feng <fengc@google.com>
Bug: 30950746
Change-Id: Ibe51235127d6f9349b8f563ad31effc061b278ed
This commit is contained in:
Chenbo Feng
2017-06-02 17:24:31 -07:00
parent 9e3c655559
commit b9aad97657
1 changed files with 3 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
kernel/bpf/syscall.c
View File

@@ -747,7 +747,9 @@ static int bpf_prog_load(union bpf_attr *attr)
attr->kern_version != LINUX_VERSION_CODE)
return -EINVAL;
if (type != BPF_PROG_TYPE_SOCKET_FILTER && !capable(CAP_SYS_ADMIN))
if (type != BPF_PROG_TYPE_SOCKET_FILTER &&
type != BPF_PROG_TYPE_CGROUP_SKB &&
!capable(CAP_SYS_ADMIN))
return -EPERM;
/* plain bpf_prog allocation */