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author | Teng Qi <starmiku1207184332@gmail.com> | 2021-11-17 06:44:53 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-08 10:50:12 +0300 |
commit | dd07f8971b81ad98cc754b179b331b57f35aa1ff (patch) | |
tree | 56f6496022fee93ae1663a40162bfab1d4bf80fd /drivers/net/tun.c | |
parent | 2d95244ebcc6424b1e784ce594d2e08f4f8b3cd9 (diff) | |
download | linux-dd07f8971b81ad98cc754b179b331b57f35aa1ff.tar.xz |
ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()
[ Upstream commit a66998e0fbf213d47d02813b9679426129d0d114 ]
The if statement:
if (port >= DSAF_GE_NUM)
return;
limits the value of port less than DSAF_GE_NUM (i.e., 8).
However, if the value of port is 6 or 7, an array overflow could occur:
port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;
because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).
To fix this possible array overflow, we first check port and if it is
greater than or equal to DSAF_MAX_PORT_NUM, the function returns.
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Teng Qi <starmiku1207184332@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/tun.c')
0 files changed, 0 insertions, 0 deletions