diff options
Diffstat (limited to 'net/netfilter/xt_bpf.c')
| -rw-r--r-- | net/netfilter/xt_bpf.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/netfilter/xt_bpf.c b/net/netfilter/xt_bpf.c index dffee9d47ec4..7b993f25aab9 100644 --- a/net/netfilter/xt_bpf.c +++ b/net/netfilter/xt_bpf.c @@ -25,6 +25,9 @@ static int bpf_mt_check(const struct xt_mtchk_param *par) struct xt_bpf_info *info = par->matchinfo; struct sock_fprog_kern program; + if (info->bpf_program_num_elem > XT_BPF_MAX_NUM_INSTR) + return -EINVAL; + program.len = info->bpf_program_num_elem; program.filter = info->bpf_program; |