tree bfc466ffe2607664d9fe2a18e7334587091bf61d
parent 277100b3d5fefacba4f5ff18e2e52a9553eb6e3f
author Mikulas Patocka <mpatocka@redhat.com> 1710783306 +0100
committer Mike Snitzer <snitzer@kernel.org> 1710863497 -0400

dm-integrity: fix a memory leak when rechecking the data

Memory for the "checksums" pointer will leak if the data is rechecked
after checksum failure (because the associated kfree won't happen due
to 'goto skip_io').

Fix this by freeing the checksums memory before recheck, and just use
the "checksum_onstack" memory for storing checksum during recheck.

Fixes: c88f5e553fe3 ("dm-integrity: recheck the integrity tag after a failure")
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>