diff options
| author | Willem de Bruijn <willemb@google.com> | 2018-05-17 13:13:29 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-26 08:48:57 +0200 |
| commit | 671cf50f4c2f55652495d98fa4306aa8641b2860 (patch) | |
| tree | 6057a3c8ca44635e202fb80fc32a9c8d453ca4e4 /lib/extable.c | |
| parent | e2da30c54e49d7c989484865b838aeccad708d00 (diff) | |
net: test tailroom before appending to linear skb
[ Upstream commit 113f99c3358564a0647d444c2ae34e8b1abfd5b9 ]
Device features may change during transmission. In particular with
corking, a device may toggle scatter-gather in between allocating
and writing to an skb.
Do not unconditionally assume that !NETIF_F_SG at write time implies
that the same held at alloc time and thus the skb has sufficient
tailroom.
This issue predates git history.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/extable.c')
0 files changed, 0 insertions, 0 deletions