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| author | Danila Chernetsov <listdansp@mail.ru> | 2023-04-04 22:05:49 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-07-19 17:22:07 +0300 |
| commit | e9fbb7c2f65e900fc6505274f70cd9db3c876667 (patch) | |
| tree | e9774147f127f8029d915fd497e58b7a983e598c /security | |
| parent | 8fb11fa4805699c6b73a9c8a9d45807f9874abe3 (diff) | |
| download | linux-e9fbb7c2f65e900fc6505274f70cd9db3c876667.tar.xz | |
apparmor: fix missing error check for rhashtable_insert_fast
[ Upstream commit 000518bc5aef25d3f703592a0296d578c98b1517 ]
rhashtable_insert_fast() could return err value when memory allocation is
failed. but unpack_profile() do not check values and this always returns
success value. This patch just adds error check code.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: e025be0f26d5 ("apparmor: support querying extended trusted helper extra data")
Signed-off-by: Danila Chernetsov <listdansp@mail.ru>
Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'security')
| -rw-r--r-- | security/apparmor/policy_unpack.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/security/apparmor/policy_unpack.c b/security/apparmor/policy_unpack.c index 9d26bbb90133..9c3fec2c7cf6 100644 --- a/security/apparmor/policy_unpack.c +++ b/security/apparmor/policy_unpack.c @@ -917,8 +917,13 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name) goto fail; } - rhashtable_insert_fast(profile->data, &data->head, - profile->data->p); + if (rhashtable_insert_fast(profile->data, &data->head, + profile->data->p)) { + kfree_sensitive(data->key); + kfree_sensitive(data); + info = "failed to insert data to table"; + goto fail; + } } if (!unpack_nameX(e, AA_STRUCTEND, NULL)) { |