CVE-2022-49418

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

NFSv4: Fix free of uninitialized nfs4_label on referral lookup.

Send along the already-allocated fattr along with nfs4_fs_locations, and

drop the memcpy of fattr. We end up growing two more allocations, but this

fixes up a crash as:

PID: 790 TASK: ffff88811b43c000 CPU: 0 COMMAND: "ls"

#0 [ffffc90000857920] panic at ffffffff81b9bfde

#1 [ffffc900008579c0] do_trap at ffffffff81023a9b

#2 [ffffc90000857a10] do_error_trap at ffffffff81023b78

#3 [ffffc90000857a58] exc_stack_segment at ffffffff81be1f45

#4 [ffffc90000857a80] asm_exc_stack_segment at ffffffff81c009de

#5 [ffffc90000857b08] nfs_lookup at ffffffffa0302322 [nfs]

#6 [ffffc90000857b70] __lookup_slow at ffffffff813a4a5f

#7 [ffffc90000857c60] walk_component at ffffffff813a86c4

#8 [ffffc90000857cb8] path_lookupat at ffffffff813a9553

#9 [ffffc90000857cf0] filename_lookup at ffffffff813ab86b