Cezar Bulinaru 017e425406 net: hv_netvsc: Fix a warning triggered by memcpy in rndis_filter ... 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 Fixes: A warning 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. Reviewed-by: Michael Kelley <mikelley@microsoft.com> Signed-off-by: Cezar Bulinaru <cbulinaru@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2022-10-15 11:09:53 +01:00
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hyperv_net.h	hv_netvsc: Fix race between VF offering and VF association message from host	2022-10-07 08:43:58 +01:00
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	hv_netvsc: Add XDP support	2020-01-25 10:43:19 +01:00
netvsc_bpf.c	hv_netvsc: Add support for XDP_REDIRECT	2022-04-11 18:25:47 -07:00
netvsc_drv.c	hv_netvsc: Fix race between VF offering and VF association message from host	2022-10-07 08:43:58 +01:00
netvsc_trace.c	hv_netvsc: add trace points	2018-03-17 20:10:27 -04:00
netvsc_trace.h	hv_netvsc: add trace points	2018-03-17 20:10:27 -04:00
netvsc.c	hv_netvsc: Fix race between VF offering and VF association message from host	2022-10-07 08:43:58 +01:00
rndis_filter.c	net: hv_netvsc: Fix a warning triggered by memcpy in rndis_filter	2022-10-15 11:09:53 +01:00