linux3.18: update to 3.18.27.
This commit is contained in:
parent
6239f94743
commit
61a3fb9489
2 changed files with 3 additions and 79 deletions
|
@ -1,75 +0,0 @@
|
||||||
From 7ca88764d45c209791e8813131c1457c2e9e51e7 Mon Sep 17 00:00:00 2001
|
|
||||||
From: Yevgeny Pats <yevgeny@perception-point.io>
|
|
||||||
Date: Mon, 11 Jan 2016 12:05:28 +0000
|
|
||||||
Subject: KEYS: Fix keyring ref leak in join_session_keyring()
|
|
||||||
|
|
||||||
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>
|
|
||||||
---
|
|
||||||
security/keys/process_keys.c | 1 +
|
|
||||||
1 file changed, 1 insertion(+)
|
|
||||||
|
|
||||||
diff --git security/keys/process_keys.c security/keys/process_keys.c
|
|
||||||
index a3f85d2..e6d50172 100644
|
|
||||||
--- security/keys/process_keys.c
|
|
||||||
+++ 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;
|
|
||||||
}
|
|
||||||
--
|
|
||||||
2.7.0.rc3
|
|
||||||
|
|
|
@ -1,16 +1,15 @@
|
||||||
# Template file for 'linux3.18'
|
# Template file for 'linux3.18'
|
||||||
#
|
#
|
||||||
pkgname=linux3.18
|
pkgname=linux3.18
|
||||||
reverts=3.18.27_1
|
version=3.18.27
|
||||||
version=3.18.25
|
revision=1
|
||||||
revision=2
|
|
||||||
wrksrc="linux-${version}"
|
wrksrc="linux-${version}"
|
||||||
maintainer="Juan RP <xtraeme@voidlinux.eu>"
|
maintainer="Juan RP <xtraeme@voidlinux.eu>"
|
||||||
homepage="http://www.kernel.org"
|
homepage="http://www.kernel.org"
|
||||||
license="GPL-2"
|
license="GPL-2"
|
||||||
short_desc="The Linux kernel and modules (${version%.*} series)"
|
short_desc="The Linux kernel and modules (${version%.*} series)"
|
||||||
distfiles="${KERNEL_SITE}/kernel/v3.x/linux-${version}.tar.xz"
|
distfiles="${KERNEL_SITE}/kernel/v3.x/linux-${version}.tar.xz"
|
||||||
checksum=c649874e2856101df7cefe5fdad313ebb2282a939fc1e95cf02222327745ff92
|
checksum=ac9d2cd940e01cb2a659831fde4976e60d0241b0374026ed2ed7036d07039f06
|
||||||
|
|
||||||
_kernver="${version}_${revision}"
|
_kernver="${version}_${revision}"
|
||||||
|
|
||||||
|
|
Loading…
Reference in a new issue