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-rw-r--r--CVE-2016-0728.patch78
1 files changed, 0 insertions, 78 deletions
diff --git a/CVE-2016-0728.patch b/CVE-2016-0728.patch
deleted file mode 100644
index e915d8219e1..00000000000
--- a/CVE-2016-0728.patch
+++ /dev/null
@@ -1,78 +0,0 @@
-From 23567fd052a9abb6d67fe8e7a9ccdd9800a540f2 Mon Sep 17 00:00:00 2001
-From: Yevgeny Pats <yevgeny@perception-point.io>
-Date: Tue, 19 Jan 2016 22:09:04 +0000
-Subject: [PATCH] KEYS: Fix keyring ref leak in join_session_keyring()
-
-This fixes CVE-2016-0728.
-
-If a thread is asked to join as a session keyring the keyring that's already
-set as its session, we leak a keyring reference.
-
-This can be tested with the following program:
-
- #include <stddef.h>
- #include <stdio.h>
- #include <sys/types.h>
- #include <keyutils.h>
-
- int main(int argc, const char *argv[])
- {
- int i = 0;
- key_serial_t serial;
-
- serial = keyctl(KEYCTL_JOIN_SESSION_KEYRING,
- "leaked-keyring");
- if (serial < 0) {
- perror("keyctl");
- return -1;
- }
-
- if (keyctl(KEYCTL_SETPERM, serial,
- KEY_POS_ALL | KEY_USR_ALL) < 0) {
- perror("keyctl");
- return -1;
- }
-
- for (i = 0; i < 100; i++) {
- serial = keyctl(KEYCTL_JOIN_SESSION_KEYRING,
- "leaked-keyring");
- if (serial < 0) {
- perror("keyctl");
- return -1;
- }
- }
-
- return 0;
- }
-
-If, after the program has run, there something like the following line in
-/proc/keys:
-
-3f3d898f I--Q--- 100 perm 3f3f0000 0 0 keyring leaked-keyring: empty
-
-with a usage count of 100 * the number of times the program has been run,
-then the kernel is malfunctioning. If leaked-keyring has zero usages or
-has been garbage collected, then the problem is fixed.
-
-Reported-by: Yevgeny Pats <yevgeny@perception-point.io>
-Signed-off-by: David Howells <dhowells@redhat.com>
-Acked-by: Don Zickus <dzickus@redhat.com>
-Acked-by: Prarit Bhargava <prarit@redhat.com>
-Acked-by: Jarod Wilson <jarod@redhat.com>
-Signed-off-by: James Morris <james.l.morris@oracle.com>
----
- security/keys/process_keys.c | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
-index a3f85d2a..e6d50172 100644
---- a/security/keys/process_keys.c
-+++ b/security/keys/process_keys.c
-@@ -794,6 +794,7 @@ long join_session_keyring(const char *name)
- ret = PTR_ERR(keyring);
- goto error2;
- } else if (keyring == new->session_keyring) {
-+ key_put(keyring);
- ret = 0;
- goto error2;
- }