diff options
| author | Boris Sukholitko <[email protected]> | 2020-05-19 10:32:37 +0300 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2020-05-19 15:38:00 -0700 |
| commit | c0bbbdc32febd4f034ecbf3ea17865785b2c0652 (patch) | |
| tree | a72795d0d8594c6b85681104a4240b9e5fc9c1a0 /kernel/bpf/syscall.c | |
| parent | 88d7fcfa3b1fe670f0412b95be785aafca63352b (diff) | |
__netif_receive_skb_core: pass skb by reference
__netif_receive_skb_core may change the skb pointer passed into it (e.g.
in rx_handler). The original skb may be freed as a result of this
operation.
The callers of __netif_receive_skb_core may further process original skb
by using pt_prev pointer returned by __netif_receive_skb_core thus
leading to unpleasant effects.
The solution is to pass skb by reference into __netif_receive_skb_core.
v2: Added Fixes tag and comment regarding ppt_prev and skb invariant.
Fixes: 88eb1944e18c ("net: core: propagate SKB lists through packet_type lookup")
Signed-off-by: Boris Sukholitko <[email protected]>
Acked-by: Edward Cree <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'kernel/bpf/syscall.c')
0 files changed, 0 insertions, 0 deletions