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| author | Paolo Abeni <pabeni@redhat.com> | 2022-04-22 09:56:00 +0200 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2022-04-22 09:56:00 +0200 |
| commit | f70925bf99406150d8133e775e49c9c459f78733 (patch) | |
| tree | 392dd3854bf229c0c94b481819e4a67551ba6895 /net/netlink | |
| parent | net: eql: Use kzalloc instead of kmalloc/memset (diff) | |
| parent | Merge tag 'net-5.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/net... (diff) | |
| download | linux-f70925bf99406150d8133e775e49c9c459f78733.tar.xz linux-f70925bf99406150d8133e775e49c9c459f78733.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/ethernet/microchip/lan966x/lan966x_main.c
d08ed852560e ("net: lan966x: Make sure to release ptp interrupt")
c8349639324a ("net: lan966x: Add FDMA functionality")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/netlink')
| -rw-r--r-- | net/netlink/af_netlink.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 9fa85bb36c0e..1b5a9c2e1c29 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -2262,6 +2262,13 @@ static int netlink_dump(struct sock *sk) * single netdev. The outcome is MSG_TRUNC error. */ skb_reserve(skb, skb_tailroom(skb) - alloc_size); + + /* Make sure malicious BPF programs can not read unitialized memory + * from skb->head -> skb->data + */ + skb_reset_network_header(skb); + skb_reset_mac_header(skb); + netlink_skb_set_owner_r(skb, sk); if (nlk->dump_done_errno > 0) { |