afs: use kvfree() to free memory allocated by kvcalloc()

op->more_files is allocated with kvcalloc() but released via
afs_put_operation(), which uses kfree() internally. This mismach prevents
the resource from being released properly and may lead to undefined
behavior.

Fix this by using kvfree() to free op->more_files to match its allocation
method.

Fixes: e49c7b2f6d ("afs: Build an abstraction around an "operation" concept")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://patch.msgid.link/20260622090856.2746629-8-dhowells@redhat.com
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
This commit is contained in:
Zilin Guan 2026-06-22 10:08:41 +01:00 committed by Christian Brauner
parent 35b177ef54
commit cb39654926
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@ -348,7 +348,7 @@ int afs_put_operation(struct afs_operation *op)
for (i = 0; i < op->nr_files - 2; i++)
if (op->more_files[i].put_vnode)
iput(&op->more_files[i].vnode->netfs.inode);
kfree(op->more_files);
kvfree(op->more_files);
}
if (op->estate) {