Linux v4.8.11
This commit is contained in:
Justin M. Forbes
parent
c8564d4747
commit
db161bf785
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@ -1,61 +0,0 @@
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From 1aab956c7b8872fb6976328316bfad62c6e67cf8 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
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Date: Fri, 21 Oct 2016 16:44:38 +0300
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Subject: [PATCH] drm/i915: Refresh that status of MST capable connectors in
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->detect()
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Once we've determined that the sink is MST capable we never end up
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running through the full detect cycle again, despite getting HPDs.
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Fix tht by ripping out the incorrect piece of code responsible.
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This got broken when I moved the long HPD handling to the ->detect()
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hook, but failed to remove the leftover code.
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Cc: Ander Conselvan de Oliveira <conselvan2@gmail.com>
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Cc: drm-intel-fixes@lists.freedesktop.org
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Cc: Rui Tiago Matos <tiagomatos@gmail.com>
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Tested-by: Rui Tiago Matos <tiagomatos@gmail.com>
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Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98323
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Cc: Kirill A. Shutemov <kirill@shutemov.name>
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Tested-by: Kirill A. Shutemov <kirill@shutemov.name>
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References: https://bugs.freedesktop.org/show_bug.cgi?id=98306
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Fixes: 27d4efc5591a ("drm/i915: Move long hpd handling into the hotplug work")
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Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
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Link: http://patchwork.freedesktop.org/patch/msgid/1477057478-29328-1-git-send-email-ville.syrjala@linux.intel.com
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Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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---
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drivers/gpu/drm/i915/intel_dp.c | 10 ----------
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1 file changed, 10 deletions(-)
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diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
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index f30db8f..80db8a3 100644
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--- a/drivers/gpu/drm/i915/intel_dp.c
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+++ b/drivers/gpu/drm/i915/intel_dp.c
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@@ -4492,21 +4492,11 @@ static enum drm_connector_status
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intel_dp_detect(struct drm_connector *connector, bool force)
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{
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struct intel_dp *intel_dp = intel_attached_dp(connector);
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- struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
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- struct intel_encoder *intel_encoder = &intel_dig_port->base;
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enum drm_connector_status status = connector->status;
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DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
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connector->base.id, connector->name);
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- if (intel_dp->is_mst) {
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- /* MST devices are disconnected from a monitor POV */
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- intel_dp_unset_edid(intel_dp);
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- if (intel_encoder->type != INTEL_OUTPUT_EDP)
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- intel_encoder->type = INTEL_OUTPUT_DP;
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- return connector_status_disconnected;
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- }
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-
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/* If full detect is not performed yet, do a full detect */
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if (!intel_dp->detect_done)
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status = intel_dp_long_pulse(intel_dp->attached_connector);
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--
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2.7.4
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@ -0,0 +1,100 @@
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From f5527fffff3f002b0a6b376163613b82f69de073 Mon Sep 17 00:00:00 2001
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From: Andrey Ryabinin <aryabinin@virtuozzo.com>
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Date: Thu, 24 Nov 2016 13:23:10 +0000
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Subject: [PATCH] mpi: Fix NULL ptr dereference in mpi_powm() [ver #3]
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This fixes CVE-2016-8650.
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If mpi_powm() is given a zero exponent, it wants to immediately return
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either 1 or 0, depending on the modulus. However, if the result was
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initalised with zero limb space, no limbs space is allocated and a
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NULL-pointer exception ensues.
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Fix this by allocating a minimal amount of limb space for the result when
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the 0-exponent case when the result is 1 and not touching the limb space
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when the result is 0.
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This affects the use of RSA keys and X.509 certificates that carry them.
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BUG: unable to handle kernel NULL pointer dereference at (null)
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IP: [<ffffffff8138ce5d>] mpi_powm+0x32/0x7e6
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PGD 0
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Oops: 0002 [#1] SMP
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Modules linked in:
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CPU: 3 PID: 3014 Comm: keyctl Not tainted 4.9.0-rc6-fscache+ #278
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Hardware name: ASUS All Series/H97-PLUS, BIOS 2306 10/09/2014
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task: ffff8804011944c0 task.stack: ffff880401294000
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RIP: 0010:[<ffffffff8138ce5d>] [<ffffffff8138ce5d>] mpi_powm+0x32/0x7e6
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RSP: 0018:ffff880401297ad8 EFLAGS: 00010212
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RAX: 0000000000000000 RBX: ffff88040868bec0 RCX: ffff88040868bba0
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RDX: ffff88040868b260 RSI: ffff88040868bec0 RDI: ffff88040868bee0
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RBP: ffff880401297ba8 R08: 0000000000000000 R09: 0000000000000000
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R10: 0000000000000047 R11: ffffffff8183b210 R12: 0000000000000000
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R13: ffff8804087c7600 R14: 000000000000001f R15: ffff880401297c50
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FS: 00007f7a7918c700(0000) GS:ffff88041fb80000(0000) knlGS:0000000000000000
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CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
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CR2: 0000000000000000 CR3: 0000000401250000 CR4: 00000000001406e0
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Stack:
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ffff88040868bec0 0000000000000020 ffff880401297b00 ffffffff81376cd4
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0000000000000100 ffff880401297b10 ffffffff81376d12 ffff880401297b30
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ffffffff81376f37 0000000000000100 0000000000000000 ffff880401297ba8
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Call Trace:
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[<ffffffff81376cd4>] ? __sg_page_iter_next+0x43/0x66
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[<ffffffff81376d12>] ? sg_miter_get_next_page+0x1b/0x5d
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[<ffffffff81376f37>] ? sg_miter_next+0x17/0xbd
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[<ffffffff8138ba3a>] ? mpi_read_raw_from_sgl+0xf2/0x146
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[<ffffffff8132a95c>] rsa_verify+0x9d/0xee
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[<ffffffff8132acca>] ? pkcs1pad_sg_set_buf+0x2e/0xbb
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[<ffffffff8132af40>] pkcs1pad_verify+0xc0/0xe1
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[<ffffffff8133cb5e>] public_key_verify_signature+0x1b0/0x228
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[<ffffffff8133d974>] x509_check_for_self_signed+0xa1/0xc4
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[<ffffffff8133cdde>] x509_cert_parse+0x167/0x1a1
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[<ffffffff8133d609>] x509_key_preparse+0x21/0x1a1
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[<ffffffff8133c3d7>] asymmetric_key_preparse+0x34/0x61
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[<ffffffff812fc9f3>] key_create_or_update+0x145/0x399
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[<ffffffff812fe227>] SyS_add_key+0x154/0x19e
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[<ffffffff81001c2b>] do_syscall_64+0x80/0x191
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[<ffffffff816825e4>] entry_SYSCALL64_slow_path+0x25/0x25
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Code: 56 41 55 41 54 53 48 81 ec a8 00 00 00 44 8b 71 04 8b 42 04 4c 8b 67 18 45 85 f6 89 45 80 0f 84 b4 06 00 00 85 c0 75 2f 41 ff ce <49> c7 04 24 01 00 00 00 b0 01 75 0b 48 8b 41 18 48 83 38 01 0f
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RIP [<ffffffff8138ce5d>] mpi_powm+0x32/0x7e6
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RSP <ffff880401297ad8>
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CR2: 0000000000000000
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---[ end trace d82015255d4a5d8d ]---
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Basically, this is a backport of a libgcrypt patch:
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http://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=patch;h=6e1adb05d290aeeb1c230c763970695f4a538526
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Fixes: cdec9cb5167a ("crypto: GnuPG based MPI lib - source files (part 1)")
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Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
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Signed-off-by: David Howells <dhowells@redhat.com>
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cc: Dmitry Kasatkin <dmitry.kasatkin@gmail.com>
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cc: linux-ima-devel@lists.sourceforge.net
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cc: stable@vger.kernel.org
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Signed-off-by: James Morris <james.l.morris@oracle.com>
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---
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lib/mpi/mpi-pow.c | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/lib/mpi/mpi-pow.c b/lib/mpi/mpi-pow.c
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index 5464c87..e24388a 100644
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--- a/lib/mpi/mpi-pow.c
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+++ b/lib/mpi/mpi-pow.c
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@@ -64,8 +64,13 @@ int mpi_powm(MPI res, MPI base, MPI exp, MPI mod)
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if (!esize) {
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/* Exponent is zero, result is 1 mod MOD, i.e., 1 or 0
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* depending on if MOD equals 1. */
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- rp[0] = 1;
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res->nlimbs = (msize == 1 && mod->d[0] == 1) ? 0 : 1;
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+ if (res->nlimbs) {
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+ if (mpi_resize(res, 1) < 0)
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+ goto enomem;
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+ rp = res->d;
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+ rp[0] = 1;
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+ }
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res->sign = 0;
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goto leave;
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}
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--
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2.9.3
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12
kernel.spec
12
kernel.spec
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@ -54,7 +54,7 @@ Summary: The Linux kernel
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%if 0%{?released_kernel}
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# Do we have a -stable update to apply?
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%define stable_update 10
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%define stable_update 11
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# Set rpm version accordingly
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%if 0%{?stable_update}
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%define stablerev %{stable_update}
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@ -631,15 +631,15 @@ Patch850: v3-vfio-pci-Fix-integer-overflows-bitmask-check.patch
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#rhbz 1325354
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Patch852: 0001-HID-input-ignore-System-Control-application-usages-i.patch
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#rhbz 1392885
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Patch853: 0001-drm-i915-Refresh-that-status-of-MST-capable-connecto.patch
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#rhbz 1390308
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Patch854: nouveau-add-maxwell-to-backlight-init.patch
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#rhbz 1385823
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Patch855: 0001-platform-x86-ideapad-laptop-Add-Lenovo-Yoga-910-13IK.patch
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# CVE-2016-8650 rhbz 1395187 1398463
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Patch856: 0001-mpi-Fix-NULL-ptr-dereference-in-mpi_powm-ver-3.patch
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# END OF PATCH DEFINITIONS
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%endif
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@ -2167,6 +2167,10 @@ fi
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#
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#
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%changelog
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* Mon Nov 28 2016 Justin M. Forbes <jforbes@fedoraproject.org> - 4.8.11-200
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- Linux v4.8.11
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- CVE-2016-8650 Fix NULL ptr dereference in mpi_powm() (rhbz 1395187 1398463)
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* Mon Nov 28 2016 Peter Robinson <pbrobinson@fedoraproject.org>
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- Add upstream patch to fix all ARMv7 devices set to initial 200Mhz
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