Description: use-after-free in jbd2_journal_commit_transaction()
References:
 https://bugzilla.kernel.org/show_bug.cgi?id=199403
 https://patchwork.ozlabs.org/patch/929239/
Notes:
Bugs:
upstream: released (4.18-rc4) [8844618d8aa7a9973e7b527d038a2a589665002c]
4.9-upstream-stable: released (4.9.112) [5ae57329580d6ceca97559ff030a5f0e91fa66fe]
3.16-upstream-stable: released (3.16.58) [ext4-only-look-at-the-bg_flags-field-if-it-is-valid.patch]
sid: released (4.17.3-1) [bugfix/all/ext4-only-look-at-the-bg_flags-field-if-it-is-valid.patch]
4.9-stretch-security: released (4.9.110-1) [bugfix/all/ext4-only-look-at-the-bg_flags-field-if-it-is-valid.patch]
3.16-jessie-security: released (3.16.59-1)