Description: ext4: fix use-after-free in ext4_xattr_set_entry
References:
 https://lore.kernel.org/all/20220616021358.2504451-1-libaokun1@huawei.com/
Notes:
 carnil> In various stable series there was a fix for the issue, but
 carnil> reverted again "in order to avoid conflicts on stable,
 carnil> reverting the commit first and queuing its prereqisities
 carnil> patches fist and then queue the same after again". Thus
 carnil> tracking the first occurence of the fix.
Bugs:
upstream: released (6.0-rc1) [67d7d8ad99beccd9fe92d585b87f1760dc9018e3]
6.1-upstream-stable: N/A "Fixed before branching point"
5.10-upstream-stable: released (5.10.137) [bb8592efcf8ef2f62947745d3182ea05b5256a15]
4.19-upstream-stable: released (4.19.256) [c3ecf16b410fd88c15eb8353369a1943c3da5101]
sid: released (5.19.6-1)
5.10-bullseye-security: released (5.10.140-1)
4.19-buster-security: released (4.19.260-1)