net: stmmac: use correct DMA buffer size in the RX descriptor
BugLink: https://bugs.launchpad.net/bugs/1858489 commit 583e6361 upstream. We always program the maximum DMA buffer size into the receive descriptor, although the allocated size may be less. E.g. with the default MTU size we allocate only 1536 bytes. If somebody sends us a bigger frame, then memory may get corrupted. Fix by using exact buffer sizes. Signed-off-by:Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by:
David S. Miller <davem@davemloft.net> [acj: backport to v4.4 -stable : - Modified patch since v4.4 driver has no support for Big endian - Skipped the section modifying non-existent functions in dwmac4_descs.c and dwxgmac2_descs.c ] Signed-off-by:
Aviraj CJ <acj@cisco.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Connor Kuehl <connor.kuehl@canonical.com> Signed-off-by:
Kleber Sacilotto de Souza <kleber.souza@canonical.com>
Showing
Please register or sign in to comment