net/mlx5e: add missing cpu_to_node to kvzalloc_node in mlx5e_open_xdpredirect_sq

In the Linux kernel, the following vulnerability has been resolved:

net/mlx5e: add missing cpu_to_node to kvzalloc_node in mlx5e_open_xdpredirect_sq

kvzalloc_node is not doing a runtime check on the node argument

(__alloc_pages_node_noprof does have a VM_BUG_ON, but it expands to

nothing on !CONFIG_DEBUG_VM builds), so doing any ethtool/netlink

operation that calls mlx5e_open on a CPU that's larger that MAX_NUMNODES

triggers OOB access and panic (see the trace below).

Add missing cpu_to_node call to convert cpu id to node id.

[ 165.427394] mlx5_core 0000:5c:00.0 beth1: Link up

[ 166.479327] BUG: unable to handle page fault for address: 0000000800000010

[ 166.494592] #PF: supervisor read access in kernel mode

[ 166.505995] #PF: error_code(0x0000) - not-present page

...

[ 166.816958] Call Trace:

[ 166.822380] <TASK>

[ 166.827034] ? __die_body+0x64/0xb0

[ 166.834774] ? page_fault_oops+0x2cd/0x3f0

[ 166.843862] ? exc_page_fault+0x63/0x130

[ 166.852564] ? asm_exc_page_fault+0x22/0x30

[ 166.861843] ? __kvmalloc_node_noprof+0x43/0xd0

[ 166.871897] ? get_partial_node+0x1c/0x320

[ 166.880983] ? deactivate_slab+0x269/0x2b0

[ 166.890069] ___slab_alloc+0x521/0xa90

[ 166.898389] ? __kvmalloc_node_noprof+0x43/0xd0

[ 166.908442] __kmalloc_node_noprof+0x216/0x3f0

[ 166.918302] ? __kvmalloc_node_noprof+0x43/0xd0

[ 166.928354] __kvmalloc_node_noprof+0x43/0xd0

[ 166.938021] mlx5e_open_channels+0x5e2/0xc00

[ 166.947496] mlx5e_open_locked+0x3e/0xf0

[ 166.956201] mlx5e_open+0x23/0x50

[ 166.963551] __dev_open+0x114/0x1c0

[ 166.971292] __dev_change_flags+0xa2/0x1b0

[ 166.980378] dev_change_flags+0x21/0x60

[ 166.988887] do_setlink+0x38d/0xf20

[ 166.996628] ? ep_poll_callback+0x1b9/0x240

[ 167.005910] ? __nla_validate_parse.llvm.10713395753544950386+0x80/0xd70

[ 167.020782] ? __wake_up_sync_key+0x52/0x80

[ 167.030066] ? __mutex_lock+0xff/0x550

[ 167.038382] ? security_capable+0x50/0x90

[ 167.047279] rtnl_setlink+0x1c9/0x210

[ 167.055403] ? ep_poll_callback+0x1b9/0x240

[ 167.064684] ? security_capable+0x50/0x90

[ 167.073579] rtnetlink_rcv_msg+0x2f9/0x310

[ 167.082667] ? rtnetlink_bind+0x30/0x30

[ 167.091173] netlink_rcv_skb+0xb1/0xe0

[ 167.099492] netlink_unicast+0x20f/0x2e0

[ 167.108191] netlink_sendmsg+0x389/0x420

[ 167.116896] __sys_sendto+0x158/0x1c0

[ 167.125024] __x64_sys_sendto+0x22/0x30

[ 167.133534] do_syscall_64+0x63/0x130

[ 167.141657] ? __irq_exit_rcu.llvm.17843942359718260576+0x52/0xd0

[ 167.155181] entry_SYSCALL_64_after_hwframe+0x4b/0x53