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linux-utilite-dt: kernel-CVE-2016-0728.patch
This commit is contained in:
parent
91169fdb7f
commit
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@ -15,7 +15,7 @@ _srcname=linux-kernel-${_commit}
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_kernelname=${pkgname#linux}
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_kernelname=${pkgname#linux}
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_basekernel=3.10
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_basekernel=3.10
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pkgver=${_basekernel}.70
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pkgver=${_basekernel}.70
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pkgrel=1
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pkgrel=2
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arch=('armv7h')
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arch=('armv7h')
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url="http://www.kernel.org/"
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url="http://www.kernel.org/"
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license=('GPL2')
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license=('GPL2')
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@ -24,16 +24,21 @@ options=('!strip')
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source=("https://github.com/pepedog/linux-kernel/archive/${_commit}.tar.gz"
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source=("https://github.com/pepedog/linux-kernel/archive/${_commit}.tar.gz"
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'0001-Bluetooth-allocate-static-minor-for-vhci.patch'
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'0001-Bluetooth-allocate-static-minor-for-vhci.patch'
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'update-igb-eth.patch'
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'update-igb-eth.patch'
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'kernel-CVE-2016-0728.patch'
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"config")
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"config")
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md5sums=('ed652cdd468428a122d73c6388714e44'
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md5sums=('ed652cdd468428a122d73c6388714e44'
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'1b276abe16d14e133f3f28d9c9e6bd68'
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'1b276abe16d14e133f3f28d9c9e6bd68'
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'2bbb1ada1dfd161ac4a7d43107e0732d'
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'2bbb1ada1dfd161ac4a7d43107e0732d'
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'6470e9783bd1c7a8feddc2d67f07afd5'
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'6cd72dbf43d2431a77177da04287b94f')
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'6cd72dbf43d2431a77177da04287b94f')
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prepare() {
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prepare() {
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cd "${srcdir}/${_srcname}"
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cd "${srcdir}/${_srcname}"
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msg2 "ALARM patches"
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patch -Np1 -i ${srcdir}/kernel-CVE-2016-0728.patch
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msg2 "Fix hci_vhci no minor warning"
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msg2 "Fix hci_vhci no minor warning"
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patch -Np1 -i ${srcdir}/0001-Bluetooth-allocate-static-minor-for-vhci.patch
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patch -Np1 -i ${srcdir}/0001-Bluetooth-allocate-static-minor-for-vhci.patch
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81
core/linux-utilite-dt/kernel-CVE-2016-0728.patch
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81
core/linux-utilite-dt/kernel-CVE-2016-0728.patch
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@ -0,0 +1,81 @@
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From 23567fd052a9abb6d67fe8e7a9ccdd9800a540f2 Mon Sep 17 00:00:00 2001
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From: Yevgeny Pats <yevgeny@perception-point.io>
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Date: Tue, 19 Jan 2016 22:09:04 +0000
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Subject: KEYS: Fix keyring ref leak in join_session_keyring()
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This fixes CVE-2016-0728.
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If a thread is asked to join as a session keyring the keyring that's already
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set as its session, we leak a keyring reference.
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This can be tested with the following program:
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#include <stddef.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <keyutils.h>
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int main(int argc, const char *argv[])
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{
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int i = 0;
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key_serial_t serial;
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serial = keyctl(KEYCTL_JOIN_SESSION_KEYRING,
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"leaked-keyring");
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if (serial < 0) {
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perror("keyctl");
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return -1;
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}
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if (keyctl(KEYCTL_SETPERM, serial,
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KEY_POS_ALL | KEY_USR_ALL) < 0) {
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perror("keyctl");
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return -1;
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}
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for (i = 0; i < 100; i++) {
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serial = keyctl(KEYCTL_JOIN_SESSION_KEYRING,
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"leaked-keyring");
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if (serial < 0) {
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perror("keyctl");
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return -1;
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}
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}
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return 0;
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}
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If, after the program has run, there something like the following line in
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/proc/keys:
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3f3d898f I--Q--- 100 perm 3f3f0000 0 0 keyring leaked-keyring: empty
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with a usage count of 100 * the number of times the program has been run,
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then the kernel is malfunctioning. If leaked-keyring has zero usages or
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has been garbage collected, then the problem is fixed.
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Reported-by: Yevgeny Pats <yevgeny@perception-point.io>
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Signed-off-by: David Howells <dhowells@redhat.com>
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Acked-by: Don Zickus <dzickus@redhat.com>
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Acked-by: Prarit Bhargava <prarit@redhat.com>
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Acked-by: Jarod Wilson <jarod@redhat.com>
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Signed-off-by: James Morris <james.l.morris@oracle.com>
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---
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security/keys/process_keys.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
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index a3f85d2..e6d50172 100644
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--- a/security/keys/process_keys.c
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+++ b/security/keys/process_keys.c
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@@ -794,6 +794,7 @@ long join_session_keyring(const char *name)
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ret = PTR_ERR(keyring);
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goto error2;
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} else if (keyring == new->session_keyring) {
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+ key_put(keyring);
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ret = 0;
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goto error2;
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}
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--
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cgit v0.12
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