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| author | Anant Thazhemadam <anant.thazhemadam@gmail.com> | 2020-10-05 18:59:58 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-10-14 10:33:06 +0200 |
| commit | dbb763107d3ee8ecfe1fc0e262158339e9875892 (patch) | |
| tree | 4bad0cfd808492f6905207229b3c663e68055a50 /net/sched | |
| parent | 6c9edf2d855a3456abce8ee1603a4114337ce3ee (diff) | |
net: usb: rtl8150: set random MAC address when set_ethernet_addr() fails
commit f45a4248ea4cc13ed50618ff066849f9587226b2 upstream.
When get_registers() fails in set_ethernet_addr(),the uninitialized
value of node_id gets copied over as the address.
So, check the return value of get_registers().
If get_registers() executed successfully (i.e., it returns
sizeof(node_id)), copy over the MAC address using ether_addr_copy()
(instead of using memcpy()).
Else, if get_registers() failed instead, a randomly generated MAC
address is set as the MAC address instead.
Reported-by: syzbot+abbc768b560c84d92fd3@syzkaller.appspotmail.com
Tested-by: syzbot+abbc768b560c84d92fd3@syzkaller.appspotmail.com
Acked-by: Petko Manolov <petkan@nucleusys.com>
Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/sched')
0 files changed, 0 insertions, 0 deletions