Thanks , I have sent [PATCH v3] net: hv_netvsc: Fix a warning triggered by memcpy in rndis_filter On Thu, 13 Oct 2022 at 04:56, Paolo Abeni <pabeni@xxxxxxxxxx> wrote: > > Hello, > > On Tue, 2022-10-11 at 21:39 -0400, Cezar Bulinaru wrote: > > A warning is triggered when the response message len exceeds > > the size of rndis_message. Inside the rndis_request structure > > these fields are however followed by a RNDIS_EXT_LEN padding > > so it is safe to use unsafe_memcpy. > > > > memcpy: detected field-spanning write (size 168) of single field "(void *)&request->response_msg + (sizeof(struct rndis_message) - sizeof(union rndis_message_container)) + sizeof(*req_id)" at drivers/net/hyperv/rndis_filter.c:338 (size 40) > > RSP: 0018:ffffc90000144de0 EFLAGS: 00010282 > > RAX: 0000000000000000 RBX: ffff8881766b4000 RCX: 0000000000000000 > > RDX: 0000000000000102 RSI: 0000000000009ffb RDI: 00000000ffffffff > > RBP: ffffc90000144e38 R08: 0000000000000000 R09: 00000000ffffdfff > > R10: ffffc90000144c48 R11: ffffffff82f56ac8 R12: ffff8881766b403c > > R13: 00000000000000a8 R14: ffff888100b75000 R15: ffff888179301d00 > > FS: 0000000000000000(0000) GS:ffff8884d6280000(0000) knlGS:0000000000000000 > > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > > CR2: 000055f8b024c418 CR3: 0000000176548001 CR4: 00000000003706e0 > > Call Trace: > > <IRQ> > > ? _raw_spin_unlock_irqrestore+0x27/0x50 > > netvsc_poll+0x556/0x940 [hv_netvsc] > > __napi_poll+0x2e/0x170 > > net_rx_action+0x299/0x2f0 > > __do_softirq+0xed/0x2ef > > __irq_exit_rcu+0x9f/0x110 > > irq_exit_rcu+0xe/0x20 > > sysvec_hyperv_callback+0xb0/0xd0 > > </IRQ> > > <TASK> > > asm_sysvec_hyperv_callback+0x1b/0x20 > > RIP: 0010:native_safe_halt+0xb/0x10 > > > > Signed-off-by: Cezar Bulinaru <cbulinaru@xxxxxxxxx> > > Could you please additionally provide a suitable 'Fixes' tag? > > You need to repost a new version, including such tag just before your > SoB. While at that, please also include the target tree in the subj > prefix (net). > > On this repost you can retain the ack/review tags collected so far. > > Thanks, > > Paolo >
