1 files changed, 0 insertions, 39 deletions

diff --git a/meta-sota-raspberrypi/recipes-kernel/linux/linux-raspberrypi/0003-Smack-ignore-null-signal-in-smack_task_kill.patch b/meta-sota-raspberrypi/recipes-kernel/linux/linux-raspberrypi/0003-Smack-ignore-null-signal-in-smack_task_kill.patch
deleted file mode 100644
index c9180bb..0000000
--- a/meta-sota-raspberrypi/recipes-kernel/linux/linux-raspberrypi/0003-Smack-ignore-null-signal-in-smack_task_kill.patch
+++ /dev/null
@@ -1,39 +0,0 @@
-From ec4eb03af07b0fbc330aecca6ac4ebd6accd8825 Mon Sep 17 00:00:00 2001
-From: Rafal Krypa <r.krypa@samsung.com>
-Date: Mon, 4 Apr 2016 11:14:53 +0200
-Subject: [PATCH 3/4] Smack: ignore null signal in smack_task_kill
-
-Kill with signal number 0 is commonly used for checking PID existence.
-Smack treated such cases like any other kills, although no signal is
-actually delivered when sig == 0.
-
-Checking permissions when sig == 0 didn't prevent an unprivileged caller
-from learning whether PID exists or not. When it existed, kernel returned
-EPERM, when it didn't - ESRCH. The only effect of policy check in such
-case is noise in audit logs.
-
-This change lets Smack silently ignore kill() invocations with sig == 0.
-
-Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
-Acked-by: Casey Schaufler <casey@schaufler-ca.com>
----
- security/smack/smack_lsm.c | 3 +++
- 1 file changed, 3 insertions(+)
-
-diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
-index b2bcb14..cf8a93f 100644
---- a/security/smack/smack_lsm.c
-+++ b/security/smack/smack_lsm.c
-@@ -2239,6 +2239,9 @@ static int smack_task_kill(struct task_struct *p, struct siginfo *info,
-        struct smack_known *tkp = smk_of_task_struct(p);
-        int rc;
- 
-+       if (!sig)
-+               return 0; /* null signal; existence test */
-+
-        smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_TASK);
-        smk_ad_setfield_u_tsk(&ad, p);
-        /*
--- 
-2.7.4
-