Revert "WORKAROUND: security: smack: Allow ptracing even processes in onlycap set"
authorSeung-Woo Kim <sw0312.kim@samsung.com>
Fri, 21 Aug 2020 01:08:34 +0000 (10:08 +0900)
committerHoegeun Kwon <hoegeun.kwon@samsung.com>
Tue, 30 Mar 2021 01:40:01 +0000 (10:40 +0900)
This reverts commit 38b1ae4b960c310b02d7d6935b97d289f0326800.

Now crash-worker has System::Privileged privilege, so not anymore
ptrace related workaround is necessary. So revert the workaround.

Change-Id: I42b535e4152eb742df011a5a08324764b49f989a
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
security/smack/smack_lsm.c

index 4f4ea64..5c90b9f 100644 (file)
@@ -440,8 +440,6 @@ static int smk_ptrace_rule_check(struct task_struct *tracer,
                        rc = 0;
                else if (smack_ptrace_rule == SMACK_PTRACE_DRACONIAN)
                        rc = -EACCES;
-               else if (smack_ptrace_rule == SMACK_PTRACE_EXACT)
-                       rc = capable(CAP_SYS_PTRACE) != 0 ? 0 : -EACCES;
                else if (smack_privileged_cred(CAP_SYS_PTRACE, tracercred))
                        rc = 0;
                else