5.15-stable review patch. If anyone has any objections, please let me know.
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From: Fedor Pchelkin pchelkin@ispras.ru
commit 2bc73505a5cd2a18a7a542022722f136c19e3b87 upstream.
Inside unpack_profile() data->data is allocated using kvmemdup() so it should be freed with the corresponding kvfree_sensitive().
Also add missing data->data release for rhashtable insertion failure path in unpack_profile().
Found by Linux Verification Center (linuxtesting.org).
Fixes: e025be0f26d5 ("apparmor: support querying extended trusted helper extra data") Cc: stable@vger.kernel.org Signed-off-by: Fedor Pchelkin pchelkin@ispras.ru Signed-off-by: John Johansen john.johansen@canonical.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- security/apparmor/policy.c | 2 +- security/apparmor/policy_unpack.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-)
--- a/security/apparmor/policy.c +++ b/security/apparmor/policy.c @@ -187,7 +187,7 @@ static void aa_free_data(void *ptr, void { struct aa_data *data = ptr;
- kfree_sensitive(data->data); + kvfree_sensitive(data->data, data->size); kfree_sensitive(data->key); kfree_sensitive(data); } --- a/security/apparmor/policy_unpack.c +++ b/security/apparmor/policy_unpack.c @@ -915,6 +915,7 @@ static struct aa_profile *unpack_profile
if (rhashtable_insert_fast(profile->data, &data->head, profile->data->p)) { + kvfree_sensitive(data->data, data->size); kfree_sensitive(data->key); kfree_sensitive(data); info = "failed to insert data to table";