diff options
| author | Georgia Garcia <georgia.garcia@canonical.com> | 2023-08-21 21:37:24 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-11-20 13:59:24 +0300 |
| commit | 8d0d83f50631084411ccf5d79194ba437b3b7fc3 (patch) | |
| tree | fd5e7a4b257a1b599d4933d9c0ce5290cadadb8f /security/apparmor | |
| parent | 8762d2512f6417689be9a910b14803d9c959c623 (diff) | |
| download | linux-8d0d83f50631084411ccf5d79194ba437b3b7fc3.tar.xz | |
apparmor: fix invalid reference on profile->disconnected
[ Upstream commit 8884ba07786c718771cf7b78cb3024924b27ec2b ]
profile->disconnected was storing an invalid reference to the
disconnected path. Fix it by duplicating the string using
aa_unpack_strdup and freeing accordingly.
Fixes: 72c8a768641d ("apparmor: allow profiles to provide info to disconnected paths")
Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'security/apparmor')
| -rw-r--r-- | security/apparmor/policy.c | 1 | ||||
| -rw-r--r-- | security/apparmor/policy_unpack.c | 5 |
2 files changed, 4 insertions, 2 deletions
diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c index b38f7b2a5e1d..ec695a6caac7 100644 --- a/security/apparmor/policy.c +++ b/security/apparmor/policy.c @@ -255,6 +255,7 @@ void aa_free_profile(struct aa_profile *profile) aa_put_ns(profile->ns); kfree_sensitive(profile->rename); + kfree_sensitive(profile->disconnected); free_attachment(&profile->attach); diff --git a/security/apparmor/policy_unpack.c b/security/apparmor/policy_unpack.c index 8b8846073e14..b49201306753 100644 --- a/security/apparmor/policy_unpack.c +++ b/security/apparmor/policy_unpack.c @@ -807,7 +807,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name) const char *info = "failed to unpack profile"; size_t ns_len; struct rhashtable_params params = { 0 }; - char *key = NULL; + char *key = NULL, *disconnected = NULL; struct aa_data *data; int error = -EPROTO; kernel_cap_t tmpcap; @@ -873,7 +873,8 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name) } /* disconnected attachment string is optional */ - (void) aa_unpack_str(e, &profile->disconnected, "disconnected"); + (void) aa_unpack_strdup(e, &disconnected, "disconnected"); + profile->disconnected = disconnected; /* per profile debug flags (complain, audit) */ if (!aa_unpack_nameX(e, AA_STRUCT, "flags")) { |