summaryrefslogtreecommitdiff
path: root/kernel/bpf/syscall.c
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2018-05-12 03:53:22 +0300
committerDavid S. Miller <davem@davemloft.net>2018-05-12 03:53:22 +0300
commitb2d6cee117f708d493c020f9f355297321507be7 (patch)
tree2c6975b47034de78fc899b4191260bb2704efc0f /kernel/bpf/syscall.c
parentb753a9faaf9aef1338c28ebd9ace6d749428788b (diff)
parent4bc871984f7cb5b2dec3ae64b570cb02f9ce2227 (diff)
downloadlinux-b2d6cee117f708d493c020f9f355297321507be7.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The bpf syscall and selftests conflicts were trivial overlapping changes. The r8169 change involved moving the added mdelay from 'net' into a different function. A TLS close bug fix overlapped with the splitting of the TLS state into separate TX and RX parts. I just expanded the tests in the bug fix from "ctx->conf == X" into "ctx->tx_conf == X && ctx->rx_conf == X". Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/bpf/syscall.c')
-rw-r--r--kernel/bpf/syscall.c19
1 files changed, 14 insertions, 5 deletions
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 9b87198deea2..c286e75ec087 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -28,6 +28,7 @@
#include <linux/timekeeping.h>
#include <linux/ctype.h>
#include <linux/btf.h>
+#include <linux/nospec.h>
#define IS_FD_ARRAY(map) ((map)->map_type == BPF_MAP_TYPE_PROG_ARRAY || \
(map)->map_type == BPF_MAP_TYPE_PERF_EVENT_ARRAY || \
@@ -104,12 +105,14 @@ const struct bpf_map_ops bpf_map_offload_ops = {
static struct bpf_map *find_and_alloc_map(union bpf_attr *attr)
{
const struct bpf_map_ops *ops;
+ u32 type = attr->map_type;
struct bpf_map *map;
int err;
- if (attr->map_type >= ARRAY_SIZE(bpf_map_types))
+ if (type >= ARRAY_SIZE(bpf_map_types))
return ERR_PTR(-EINVAL);
- ops = bpf_map_types[attr->map_type];
+ type = array_index_nospec(type, ARRAY_SIZE(bpf_map_types));
+ ops = bpf_map_types[type];
if (!ops)
return ERR_PTR(-EINVAL);
@@ -124,7 +127,7 @@ static struct bpf_map *find_and_alloc_map(union bpf_attr *attr)
if (IS_ERR(map))
return map;
map->ops = ops;
- map->map_type = attr->map_type;
+ map->map_type = type;
return map;
}
@@ -897,11 +900,17 @@ static const struct bpf_prog_ops * const bpf_prog_types[] = {
static int find_prog_type(enum bpf_prog_type type, struct bpf_prog *prog)
{
- if (type >= ARRAY_SIZE(bpf_prog_types) || !bpf_prog_types[type])
+ const struct bpf_prog_ops *ops;
+
+ if (type >= ARRAY_SIZE(bpf_prog_types))
+ return -EINVAL;
+ type = array_index_nospec(type, ARRAY_SIZE(bpf_prog_types));
+ ops = bpf_prog_types[type];
+ if (!ops)
return -EINVAL;
if (!bpf_prog_is_dev_bound(prog->aux))
- prog->aux->ops = bpf_prog_types[type];
+ prog->aux->ops = ops;
else
prog->aux->ops = &bpf_offload_prog_ops;
prog->type = type;