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| author | Xie He <xie.he.0141@gmail.com> | 2020-07-06 03:45:21 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-06 22:16:21 +0300 |
| commit | 9dc829a135fb5927f1519de11286e2bbb79f5b66 (patch) | |
| tree | 45c4bd493bec432250eb48c4fb931fdb2d38f212 /drivers/net/usb | |
| parent | 0f57a1e522f413e87852e632f55de4723e511939 (diff) | |
| download | linux-9dc829a135fb5927f1519de11286e2bbb79f5b66.tar.xz | |
drivers/net/wan/lapbether: Fixed the value of hard_header_len
When this driver transmits data,
first this driver will remove a pseudo header of 1 byte,
then the lapb module will prepend the LAPB header of 2 or 3 bytes,
then this driver will prepend a length field of 2 bytes,
then the underlying Ethernet device will prepend its own header.
So, the header length required should be:
-1 + 3 + 2 + "the header length needed by the underlying device".
This patch fixes kernel panic when this driver is used with AF_PACKET
SOCK_DGRAM sockets.
Signed-off-by: Xie He <xie.he.0141@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/usb')
0 files changed, 0 insertions, 0 deletions