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| author | Jann Horn <jannh@google.com> | 2018-09-29 03:49:26 +0200 |
|---|---|---|
| committer | John Johansen <john.johansen@canonical.com> | 2018-10-03 06:29:22 -0700 |
| commit | ca3fde5214e1d24f78269b337d3f22afd6bf445e (patch) | |
| tree | 74d474a553b59e9b0bcc1bf5627047f9bf3023f2 /security/apparmor/lib.c | |
| parent | 0fb871cc42537465e322f727bec6abfd375faa83 (diff) | |
| download | talos-op-linux-ca3fde5214e1d24f78269b337d3f22afd6bf445e.tar.gz talos-op-linux-ca3fde5214e1d24f78269b337d3f22afd6bf445e.zip | |
apparmor: don't try to replace stale label in ptraceme check
begin_current_label_crit_section() must run in sleepable context because
when label_is_stale() is true, aa_replace_current_label() runs, which uses
prepare_creds(), which can sleep.
Until now, the ptraceme access check (which runs with tasklist_lock held)
violated this rule.
Fixes: b2d09ae449ced ("apparmor: move ptrace checks to using labels")
Reported-by: Cyrill Gorcunov <gorcunov@gmail.com>
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
Diffstat (limited to 'security/apparmor/lib.c')
0 files changed, 0 insertions, 0 deletions
