WARNING in iov_iter

[upstream] WARNING in iov_iter_revert
Status: upstream: reported C repro on 2018/05/13 16:28
Reported-by: syzbot+c226690f7b3126c5ee04@syzkaller.appspotmail.com
Commits: tls: Stricter error checking in zerocopy sendmsg path
Patched on: [ci-upstream-linux-next-kasan-gce-root ci-upstream-net-this-kasan-gce], missing on: [ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kmsan-gce ci-upstream-net-kasan-gce]
First: 65d, last: 1d07h

Sample crash report:

random: sshd: uninitialized urandom read (32 bytes read)
random: sshd: uninitialized urandom read (32 bytes read)
random: sshd: uninitialized urandom read (32 bytes read)
random: sshd: uninitialized urandom read (32 bytes read)
tls_set_device_offload: netdev not found
WARNING: CPU: 0 PID: 4519 at lib/iov_iter.c:918 iov_iter_revert+0x2ee/0xaa0 lib/iov_iter.c:918
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 4519 Comm: syz-executor775 Not tainted 4.17.0+ #94
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1b9/0x294 lib/dump_stack.c:113
 panic+0x22f/0x4de kernel/panic.c:184
 __warn.cold.8+0x163/0x1b3 kernel/panic.c:536
 report_bug+0x252/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992
RIP: 0010:iov_iter_revert+0x2ee/0xaa0 lib/iov_iter.c:918
Code: 74 24 08 4d 89 7d 20 48 89 de 49 83 c7 01 4c 89 f7 e8 76 50 24 fe 49 39 de 72 b7 e8 bc 4f 24 fe e9 3b ff ff ff e8 b2 4f 24 fe <0f> 0b e9 3a ff ff ff e8 a6 4f 24 fe 49 8d 7d 18 48 b8 00 00 00 00 
RSP: 0018:ffff8801b05c7788 EFLAGS: 00010293
RAX: ffff8801b0972080 RBX: 00000000fffffeee RCX: ffffffff8355eb01
RDX: 0000000000000000 RSI: ffffffff8355edae RDI: 0000000000000007
RBP: ffff8801b05c77e8 R08: ffff8801b0972080 R09: ffffed003b5c46d6
R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000112
R13: ffff8801b05c7ad0 R14: 0000000000000478 R15: ffff8801b2f66040
 tls_sw_sendmsg+0xefc/0x12b0 net/tls/tls_sw.c:448
 inet_sendmsg+0x19f/0x690 net/ipv4/af_inet.c:798
 sock_sendmsg_nosec net/socket.c:633 [inline]
 sock_sendmsg+0xd5/0x120 net/socket.c:643
 sock_write_iter+0x35a/0x5a0 net/socket.c:912
 call_write_iter include/linux/fs.h:1793 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x6ae/0x9d0 fs/read_write.c:487
 vfs_write+0x1f8/0x560 fs/read_write.c:549
 ksys_write+0xf9/0x250 fs/read_write.c:598
 __do_sys_write fs/read_write.c:610 [inline]
 __se_sys_write fs/read_write.c:607 [inline]
 __x64_sys_write+0x73/0xb0 fs/read_write.c:607
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x440a69
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
RSP: 002b:00007ffe80fca8a8 EFLAGS: 00000207 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440a69
RDX: 0000000000000478 RSI: 0000000020000740 RDI: 0000000000000003
RBP: 00000000006cb018 R08: 65732f636f72702f R09: 65732f636f72702f
R10: 000000000000000f R11: 0000000000000207 R12: 00000000004022f0
R13: 0000000000402380 R14: 0000000000000000 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..

All crashes (73):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Maintainers
ci-upstream-kasan-gce	2018/06/10 19:49	upstream	3ca24ce9ff764bc27bceb9b2fd8ece74846c3fd3	866118af36a38963903be2bdee4aff0c36ae365f	.config	log	report	syz	C	["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce-root	2018/05/12 23:44	upstream	427fbe89261d8f11cd20b5a4ba94e977061f69d6	e726f42b64de35f7a8fc316b0eb1169106d8e714	.config	log	report	syz	C	["aviadye@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "ilyal@mellanox.com" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/05/12 21:44	net-next	b2d6cee117f708d493c020f9f355297321507be7	e726f42b64de35f7a8fc316b0eb1169106d8e714	.config	log	report	syz	C	["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kmsan-gce	2018/06/10 19:44	https://github.com/google/kmsan.git/master	d6c351f832e331cde949c5e222ffc43ee1ca3147	866118af36a38963903be2bdee4aff0c36ae365f	.config	log	report	syz	C	["aviadye@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce-root	2018/06/10 22:04	upstream	3ca24ce9ff764bc27bceb9b2fd8ece74846c3fd3	866118af36a38963903be2bdee4aff0c36ae365f	.config	log	report	syz	C	["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce-root	2018/05/12 15:54	upstream	f0ab773f5c96c29a5227234c4b5a820f5591b74d	e726f42b64de35f7a8fc316b0eb1169106d8e714	.config	log	report			["aviadye@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "ilyal@mellanox.com" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce	2018/07/15 08:31	upstream	c31496dbacc2b6352750937afc20a8dbe22b27a4	92a4950507d9d15be9541491300b2201433f6814	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce	2018/07/07 00:20	upstream	b4d0562137c9035becad5fc0588f6163aed916db	9636bc933e06475902e46750d5f5198fb9c2ff7a	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce-root	2018/07/03 05:18	upstream	d0fbad0aec1df29717fab736eb24c8a49cf2c70b	317fc8ea3ebfd8c8ad97394d0a648098eda26ef1	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce	2018/06/25 00:34	upstream	7daf201d7fe8334e2d2364d4e8ed3394ec9af819	2064fc5c9114c170841328aaa4b124a4062becf6	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce	2018/06/24 01:52	upstream	5e2204832b20ef9db859dd6a2e955ac3e33eef27	2064fc5c9114c170841328aaa4b124a4062becf6	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce-root	2018/06/21 01:03	upstream	1abd8a8f39cd9a2925149000056494523c85643a	095ef80678981c78c6726af6a3a50a7c8f667d52	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce	2018/06/19 22:09	upstream	ba4dbdedd3edc2798659bcd8b1a184ea8bdd04dc	732e4256fb6f7221d07af3d900951d77eabff611	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce	2018/06/14 04:35	upstream	be779f03d563981c65cc7417cc5e0dbbc5b89d30	27c5f59f504f562333e3cd5e715fea5cb69c396e	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce-root	2018/06/10 23:21	upstream	3ca24ce9ff764bc27bceb9b2fd8ece74846c3fd3	866118af36a38963903be2bdee4aff0c36ae365f	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce	2018/06/07 03:17	upstream	0ad39cb3d70fb4324d127aeceee7f63e3f71605c	e0e534c6c2485161cf80d4ab7f7658c85fabc83f	.config	log	report			["aviadye@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce	2018/06/07 02:11	upstream	0ad39cb3d70fb4324d127aeceee7f63e3f71605c	e0e534c6c2485161cf80d4ab7f7658c85fabc83f	.config	log	report			["aviadye@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce	2018/06/05 04:35	upstream	910470e03f343c48500a5619bb14bb8df51c3a72	a50d873b175c260850259e724add6f5ddd92a6e4	.config	log	report			["aviadye@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce	2018/06/04 22:23	upstream	910470e03f343c48500a5619bb14bb8df51c3a72	a50d873b175c260850259e724add6f5ddd92a6e4	.config	log	report			["aviadye@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce	2018/06/04 18:33	upstream	29dcea88779c856c7dc92040a0c01233263101d4	6cbe7c26d5e9a2ea9ab293d3b616ace4432e526b	.config	log	report			["aviadye@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce	2018/06/04 00:29	upstream	325e14f97e0c92735d10d9922cbb73ad521de4c4	2f93b54f26aa40233a0a584ce8714e55c8dd159a	.config	log	report			["aviadye@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce	2018/06/03 16:48	upstream	918fe1b3157978ada4267468008c5f89ef101e7d	2f93b54f26aa40233a0a584ce8714e55c8dd159a	.config	log	report			["aviadye@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce	2018/06/03 10:42	upstream	918fe1b3157978ada4267468008c5f89ef101e7d	2f93b54f26aa40233a0a584ce8714e55c8dd159a	.config	log	report			["aviadye@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kasan-gce	2018/06/02 13:23	upstream	0512e0134582ef85dee77d51aae77dcd1edec495	2f93b54f26aa40233a0a584ce8714e55c8dd159a	.config	log	report			["aviadye@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-this-kasan-gce	2018/07/15 03:20	net	6bed5e260709897cf918ca262b8e68a17227ec4b	92a4950507d9d15be9541491300b2201433f6814	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-this-kasan-gce	2018/07/09 15:02	net	6508b6781be076f889e3077a1a5fadf1930a569d	f25e57704183544b0d540ef0035acfa6fb9071d7	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-this-kasan-gce	2018/07/07 07:42	net	70ba5b6db96ff7324b8cfc87e0d0383cf59c9677	6c0c0099a0b807a5fcab6578b3b687b004ca1690	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/07/16 05:40	net-next	2aa4a3378ad077d02131a23d22641ae8ae44cb28	92a4950507d9d15be9541491300b2201433f6814	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/07/06 01:04	net-next	2cc0608e42aceb38abc9e57a017449b9efc2e4a9	d3b2a0e21207954bb0f8ad9d9a2cad6e5cc5499d	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/07/04 22:15	net-next	211c41c8c46b5035b2a747a4d41627eef8261969	e1b966c6da6fce0e8322603fc9ec7f0e62ab478b	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/07/03 23:19	net-next	44a4c4698ee86daa3f44ad4b370f5a9f58831d29	317fc8ea3ebfd8c8ad97394d0a648098eda26ef1	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/07/03 02:35	net-next	f6779e4e53b6177c319f05b61a5c447137d0ab70	574780b002d00a4af293b05dfa16c5d64992670b	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/06/26 18:54	net-next	651b4513bdd232e92320f409d0f211c556ba80a9	b0294c53d01ff4816b69d34f27d10656d002a8fa	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/06/26 04:51	net-next	9ff3b40e411c00870d1c29cd6b843fca7c4160ae	2064fc5c9114c170841328aaa4b124a4062becf6	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/06/25 07:45	net-next	0ef8b4567d08a557b5226a4926ffd689ef0298ad	2064fc5c9114c170841328aaa4b124a4062becf6	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/06/22 19:22	net-next	a99790bf5c7f3d68d8b01e015d3212a98ee7bd57	c97f0d7a863bbb63de5dca44ad75c5ae7b4a154d	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/06/21 20:18	net-next	f0dc7f9c6dd99891611fca5849cbc4c6965b690e	095ef80678981c78c6726af6a3a50a7c8f667d52	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/06/20 23:18	net-next	f0dc7f9c6dd99891611fca5849cbc4c6965b690e	095ef80678981c78c6726af6a3a50a7c8f667d52	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/06/18 22:36	net-next	f0dc7f9c6dd99891611fca5849cbc4c6965b690e	45c54f755c6dee216beaeeef11e98a0375102712	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/06/16 20:12	net-next	f0dc7f9c6dd99891611fca5849cbc4c6965b690e	27c5f59f504f562333e3cd5e715fea5cb69c396e	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/06/11 05:17	net-next	f0dc7f9c6dd99891611fca5849cbc4c6965b690e	866118af36a38963903be2bdee4aff0c36ae365f	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/06/06 11:47	net-next	75d4e704fa8d2cf33ff295e5b441317603d7f9fd	41f9540d7aea0348e4c4bdba6d6c0a7fa0f24a68	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/06/05 06:55	net-next	4cd328f83916ce1df69bed43c84af75e0c3d6f2d	a50d873b175c260850259e724add6f5ddd92a6e4	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/06/05 00:38	net-next	4cd328f83916ce1df69bed43c84af75e0c3d6f2d	a50d873b175c260850259e724add6f5ddd92a6e4	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-net-kasan-gce	2018/06/03 17:35	net-next	eaf47b17a77fda841a1102d76c15161ee438b347	2f93b54f26aa40233a0a584ce8714e55c8dd159a	.config	log	report			["aviadye@mellanox.com" "borisp@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kmsan-gce	2018/06/13 10:47	https://github.com/google/kmsan.git/master	5cdf0501ac1bdc9ba2844d17b2665c7881cb2ac7	27c5f59f504f562333e3cd5e715fea5cb69c396e	.config	log	report			["aviadye@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]
ci-upstream-kmsan-gce	2018/06/09 22:16	https://github.com/google/kmsan.git/master	d6c351f832e331cde949c5e222ffc43ee1ca3147	866118af36a38963903be2bdee4aff0c36ae365f	.config	log	report			["aviadye@mellanox.com" "davejwatson@fb.com" "davem@davemloft.net" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]