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authorDavid S. Miller <davem@davemloft.net>2019-09-16 16:02:03 +0200
committerDavid S. Miller <davem@davemloft.net>2019-09-16 16:02:03 +0200
commit28f2c362dbe2a9ec3dfb086dcabbd08ecfcbe236 (patch)
tree5e03aa1941369faeeb7919bbfb47ee66de14a8d9 /kernel/bpf/verifier.c
parent5f109d45a4768a4bf8b5d6a8f305039bcd4f3e87 (diff)
parentd895a0f16fadb26d22ab531c49768f7642ae5c3e (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says: ==================== pull-request: bpf-next 2019-09-16 The following pull-request contains BPF updates for your *net-next* tree. The main changes are: 1) Now that initial BPF backend for gcc has been merged upstream, enable BPF kselftest suite for bpf-gcc. Also fix a BE issue with access to bpf_sysctl.file_pos, from Ilya. 2) Follow-up fix for link-vmlinux.sh to remove bash-specific extensions related to recent work on exposing BTF info through sysfs, from Andrii. 3) AF_XDP zero copy fixes for i40e and ixgbe driver which caused umem headroom to be added twice, from Ciara. 4) Refactoring work to convert sock opt tests into test_progs framework in BPF kselftests, from Stanislav. 5) Fix a general protection fault in dev_map_hash_update_elem(), from Toke. 6) Cleanup to use BPF_PROG_RUN() macro in KCM, from Sami. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/bpf/verifier.c')
-rw-r--r--kernel/bpf/verifier.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 315798037d6c..ffc3e53f5300 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -8624,8 +8624,8 @@ static int convert_ctx_accesses(struct bpf_verifier_env *env)
}
if (is_narrower_load && size < target_size) {
- u8 shift = bpf_ctx_narrow_load_shift(off, size,
- size_default);
+ u8 shift = bpf_ctx_narrow_access_offset(
+ off, size, size_default) * 8;
if (ctx_field_size <= 4) {
if (shift)
insn_buf[cnt++] = BPF_ALU32_IMM(BPF_RSH,