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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2024-50152
• https://git.kernel.org/stable/c/19ebc1e6cab334a8193398d4152deb76019b5d34
• https://git.kernel.org/stable/c/b1813c220b76f60b1727984794377c4aa849d4c1
• https://git.kernel.org/stable/c/c9f758ecf2562dfdd4adf12c22921b5de8366123