Hello, syzbot found the following issue on: HEAD commit: e9919e11 Merge branch 'for-linus' of git://git.kernel.org/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17058f57100000 kernel config: https://syzkaller.appspot.com/x/.config?x=175942c28d9b8dd0 dashboard link: https://syzkaller.appspot.com/bug?extid=59ef240dd8f0ed7598a8 compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12f95700900000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+59ef240dd8f0ed7598a8@xxxxxxxxxxxxxxxxxxxxxxxxx BUG: memory leak unreferenced object 0xffff8881097d2400 (size 1024): comm "syz-executor.2", pid 6690, jiffies 4295037413 (age 16.990s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000e43a1d47>] kmalloc_array include/linux/slab.h:597 [inline] [<00000000e43a1d47>] kcalloc include/linux/slab.h:608 [inline] [<00000000e43a1d47>] veth_alloc_queues drivers/net/veth.c:1018 [inline] [<00000000e43a1d47>] veth_dev_init+0x7b/0x120 drivers/net/veth.c:1045 [<000000003f373d1e>] register_netdevice+0x143/0x760 net/core/dev.c:9444 [<00000000b86f82c1>] veth_newlink+0x1d5/0x460 drivers/net/veth.c:1366 [<000000008d2f627f>] __rtnl_newlink+0x8f3/0xbb0 net/core/rtnetlink.c:3339 [<000000008e87c660>] rtnl_newlink+0x49/0x70 net/core/rtnetlink.c:3397 [<000000002569c6f3>] rtnetlink_rcv_msg+0x17e/0x460 net/core/rtnetlink.c:5460 [<00000000ea72628d>] netlink_rcv_skb+0x5b/0x180 net/netlink/af_netlink.c:2469 [<0000000006d33309>] netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] [<0000000006d33309>] netlink_unicast+0x2b6/0x3c0 net/netlink/af_netlink.c:1329 [<000000002d1084c2>] netlink_sendmsg+0x2ba/0x570 net/netlink/af_netlink.c:1918 [<000000002ba4c104>] sock_sendmsg_nosec net/socket.c:652 [inline] [<000000002ba4c104>] sock_sendmsg+0x4c/0x60 net/socket.c:672 [<00000000c343726d>] __sys_sendto+0x11d/0x1c0 net/socket.c:1995 [<00000000f1ad5dc1>] __do_sys_sendto net/socket.c:2007 [inline] [<00000000f1ad5dc1>] __se_sys_sendto net/socket.c:2003 [inline] [<00000000f1ad5dc1>] __x64_sys_sendto+0x26/0x30 net/socket.c:2003 [<000000004ab49ca5>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384 [<00000000e04d67c2>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
