CVE-2024-50152

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

smb: client: fix possible double free in smb2_set_ea()

Clang static checker(scan-build) warning：

fs/smb/client/smb2ops.c:1304:2: Attempt to free released memory.

1304 | kfree(ea);

| ^~~~~~~~~

There is a double free in such case:

'ea is initialized to NULL' -> 'first successful memory allocation for

ea' -> 'something failed, goto sea_exit' -> 'first memory release for ea'

-> 'goto replay_again' -> 'second goto sea_exit before allocate memory

for ea' -> 'second memory release for ea resulted in double free'.

Re-initialie 'ea' to NULL near to the replay_again label, it can fix this

double free problem.