diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/filter.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/net/core/filter.c b/net/core/filter.c index fcd3f6742a6a..647b12265e18 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -51,9 +51,9 @@ * @skb: buffer to filter * * Run the filter code and then cut skb->data to correct size returned by - * sk_run_filter. If pkt_len is 0 we toss packet. If skb->len is smaller + * SK_RUN_FILTER. If pkt_len is 0 we toss packet. If skb->len is smaller * than pkt_len we keep whole skb->data. This is the socket level - * wrapper to sk_run_filter. It returns 0 if the packet should + * wrapper to SK_RUN_FILTER. It returns 0 if the packet should * be accepted or -EPERM if the packet should be tossed. * */ @@ -566,11 +566,8 @@ err: /* Security: * - * A BPF program is able to use 16 cells of memory to store intermediate - * values (check u32 mem[BPF_MEMWORDS] in sk_run_filter()). - * * As we dont want to clear mem[] array for each packet going through - * sk_run_filter(), we check that filter loaded by user never try to read + * __bpf_prog_run(), we check that filter loaded by user never try to read * a cell if not previously written, and we check all branches to be sure * a malicious user doesn't try to abuse us. */ |
