path: root/lib
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authorDavid S. Miller <davem@davemloft.net>2018-01-10 11:17:21 -0500
committerDavid S. Miller <davem@davemloft.net>2018-01-10 11:17:21 -0500
commit661e4e33a984fbd05e6b573ce4bb639ca699c130 (patch)
tree421a7e3828bc73daae816e5cd8aa91403aa5a12d /lib
parent4512c43eac7e007d982e7ea45152ea6f3f4d1921 (diff)
parent290af86629b25ffd1ed6232c4e9107da031705cb (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says: ==================== pull-request: bpf 2018-01-09 The following pull-request contains BPF updates for your *net* tree. The main changes are: 1) Prevent out-of-bounds speculation in BPF maps by masking the index after bounds checks in order to fix spectre v1, and add an option BPF_JIT_ALWAYS_ON into Kconfig that allows for removing the BPF interpreter from the kernel in favor of JIT-only mode to make spectre v2 harder, from Alexei. 2) Remove false sharing of map refcount with max_entries which was used in spectre v1, from Daniel. 3) Add a missing NULL psock check in sockmap in order to fix a race, from John. 4) Fix test_align BPF selftest case since a recent change in verifier rejects the bit-wise arithmetic on pointers earlier but test_align update was missing, from Alexei. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib')
1 files changed, 7 insertions, 4 deletions
diff --git a/lib/test_bpf.c b/lib/test_bpf.c
index 9e9748089270..f369889e521d 100644
--- a/lib/test_bpf.c
+++ b/lib/test_bpf.c
@@ -6250,9 +6250,8 @@ static struct bpf_prog *generate_filter(int which, int *err)
return NULL;
- /* We don't expect to fail. */
if (*err) {
- pr_cont("FAIL to attach err=%d len=%d\n",
+ pr_cont("FAIL to prog_create err=%d len=%d\n",
*err, fprog.len);
return NULL;
@@ -6276,6 +6275,10 @@ static struct bpf_prog *generate_filter(int which, int *err)
* checks.
fp = bpf_prog_select_runtime(fp, err);
+ if (*err) {
+ pr_cont("FAIL to select_runtime err=%d\n", *err);
+ return NULL;
+ }
@@ -6461,8 +6464,8 @@ static __init int test_bpf(void)
- return err;
+ err_cnt++;
+ continue;
pr_cont("jited:%u ", fp->jited);