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Josh Boyer 2013-09-06 14:50:17 -04:00
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commit 0128986976
4 changed files with 6 additions and 531 deletions
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529
HID-CVE-fixes.patch
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@ -1,126 +1,3 @@
Path: news.gmane.org!not-for-mail
From: Jiri Kosina <jkosina@suse.cz>
Newsgroups: gmane.linux.kernel.input
Subject: [PATCH 01/14] HID: validate HID report id size
Date: Wed, 28 Aug 2013 22:29:55 +0200 (CEST)
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To: linux-input@vger.kernel.org
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From: Kees Cook <keescook@chromium.org>
The "Report ID" field of a HID report is used to build indexes of
reports. The kernel's index of these is limited to 256 entries, so any
malicious device that sets a Report ID greater than 255 will trigger
memory corruption on the host:
[ 1347.156239] BUG: unable to handle kernel paging request at ffff88094958a878
[ 1347.156261] IP: [<ffffffff813e4da0>] hid_register_report+0x2a/0x8b
CVE-2013-2888
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: stable@kernel.org
---
drivers/hid/hid-core.c | 10 +++++++---
include/linux/hid.h | 4 +++-
2 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 36668d1..5ea7d51 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -63,6 +63,8 @@ struct hid_report *hid_register_report(struct hid_device *device, unsigned type,
struct hid_report_enum *report_enum = device->report_enum + type;
struct hid_report *report;
+ if (id >= HID_MAX_IDS)
+ return NULL;
if (report_enum->report_id_hash[id])
return report_enum->report_id_hash[id];
@@ -404,8 +406,10 @@ static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
case HID_GLOBAL_ITEM_TAG_REPORT_ID:
parser->global.report_id = item_udata(item);
- if (parser->global.report_id == 0) {
- hid_err(parser->device, "report_id 0 is invalid\n");
+ if (parser->global.report_id == 0 ||
+ parser->global.report_id >= HID_MAX_IDS) {
+ hid_err(parser->device, "report_id %u is invalid\n",
+ parser->global.report_id);
return -1;
}
return 0;
@@ -575,7 +579,7 @@ static void hid_close_report(struct hid_device *device)
for (i = 0; i < HID_REPORT_TYPES; i++) {
struct hid_report_enum *report_enum = device->report_enum + i;
- for (j = 0; j < 256; j++) {
+ for (j = 0; j < HID_MAX_IDS; j++) {
struct hid_report *report = report_enum->report_id_hash[j];
if (report)
hid_free_report(report);
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 0c48991..ff545cc 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -393,10 +393,12 @@ struct hid_report {
struct hid_device *device; /* associated device */
};
+#define HID_MAX_IDS 256
+
struct hid_report_enum {
unsigned numbered;
struct list_head report_list;
- struct hid_report *report_id_hash[256];
+ struct hid_report *report_id_hash[HID_MAX_IDS];
};
#define HID_REPORT_TYPES 3
--
Jiri Kosina
SUSE Labs
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From: Jiri Kosina <jkosina@suse.cz> From: Jiri Kosina <jkosina@suse.cz>
Newsgroups: gmane.linux.kernel.input Newsgroups: gmane.linux.kernel.input
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From: Jiri Kosina <jkosina@suse.cz>
Newsgroups: gmane.linux.kernel.input
Subject: [PATCH 06/14] HID: pantherlord: validate output report details
Date: Wed, 28 Aug 2013 22:30:49 +0200 (CEST)
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Cc: Kees Cook <keescook@chromium.org>
To: linux-input@vger.kernel.org
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From: Kees Cook <keescook@chromium.org>
A HID device could send a malicious output report that would cause the
pantherlord HID driver to write beyond the output report allocation
during initialization, causing a heap overflow:
[ 310.939483] usb 1-1: New USB device found, idVendor=0e8f, idProduct=0003
...
[ 315.980774] BUG kmalloc-192 (Tainted: G W ): Redzone overwritten
CVE-2013-2892
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: stable@kernel.org
---
drivers/hid/hid-pl.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/hid/hid-pl.c b/drivers/hid/hid-pl.c
index d29112f..2dcd7d9 100644
--- a/drivers/hid/hid-pl.c
+++ b/drivers/hid/hid-pl.c
@@ -132,8 +132,14 @@ static int plff_init(struct hid_device *hid)
strong = &report->field[0]->value[2];
weak = &report->field[0]->value[3];
debug("detected single-field device");
- } else if (report->maxfield >= 4 && report->field[0]->maxusage == 1 &&
- report->field[0]->usage[0].hid == (HID_UP_LED | 0x43)) {
+ } else if (report->field[0]->maxusage == 1 &&
+ report->field[0]->usage[0].hid ==
+ (HID_UP_LED | 0x43) &&
+ report->maxfield >= 4 &&
+ report->field[0]->report_count >= 1 &&
+ report->field[1]->report_count >= 1 &&
+ report->field[2]->report_count >= 1 &&
+ report->field[3]->report_count >= 1) {
report->field[0]->value[0] = 0x00;
report->field[1]->value[0] = 0x00;
strong = &report->field[2]->value[0];
--
Jiri Kosina
SUSE Labs
--
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From: Jiri Kosina <jkosina@suse.cz>
Newsgroups: gmane.linux.kernel.input
Subject: [PATCH 10/14] HID: ntrig: validate feature report details
Date: Wed, 28 Aug 2013 22:31:28 +0200 (CEST)
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Cc: Kees Cook <keescook@chromium.org>, Rafi Rubin <rafi@seas.upenn.edu>
To: linux-input@vger.kernel.org
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From: Kees Cook <keescook@chromium.org>
A HID device could send a malicious feature report that would cause the
ntrig HID driver to trigger a NULL dereference during initialization:
[57383.031190] usb 3-1: New USB device found, idVendor=1b96, idProduct=0001
...
[57383.315193] BUG: unable to handle kernel NULL pointer dereference at 0000000000000030
[57383.315308] IP: [<ffffffffa08102de>] ntrig_probe+0x25e/0x420 [hid_ntrig]
CVE-2013-2896
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: stable@kernel.org
---
drivers/hid/hid-ntrig.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/hid/hid-ntrig.c b/drivers/hid/hid-ntrig.c
index ef95102..5482156 100644
--- a/drivers/hid/hid-ntrig.c
+++ b/drivers/hid/hid-ntrig.c
@@ -115,7 +115,8 @@ static inline int ntrig_get_mode(struct hid_device *hdev)
struct hid_report *report = hdev->report_enum[HID_FEATURE_REPORT].
report_id_hash[0x0d];
- if (!report)
+ if (!report || report->maxfield < 1 ||
+ report->field[0]->report_count < 1)
return -EINVAL;
hid_hw_request(hdev, report, HID_REQ_GET_REPORT);
--
Jiri Kosina
SUSE Labs
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From: Jiri Kosina <jkosina@suse.cz> From: Jiri Kosina <jkosina@suse.cz>
@ -1252,239 +959,3 @@ SUSE Labs
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From: Jiri Kosina <jkosina@suse.cz>
Newsgroups: gmane.linux.kernel.input
Subject: [PATCH 12/14] HID: sensor-hub: validate feature report details
Date: Wed, 28 Aug 2013 22:31:44 +0200 (CEST)
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Cc: Kees Cook <keescook@chromium.org>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
srinivas pandruvada <srinivas.pandruvada@intel.com>
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From: Kees Cook <keescook@chromium.org>
A HID device could send a malicious feature report that would cause the
sensor-hub HID driver to read past the end of heap allocation, leaking
kernel memory contents to the caller.
CVE-2013-2898
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: stable@kernel.org
---
drivers/hid/hid-sensor-hub.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index ca749810..aa34755 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -221,7 +221,8 @@ int sensor_hub_get_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
mutex_lock(&data->mutex);
report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT);
- if (!report || (field_index >= report->maxfield)) {
+ if (!report || (field_index >= report->maxfield) ||
+ report->field[field_index]->report_count < 1) {
ret = -EINVAL;
goto done_proc;
}
--
Jiri Kosina
SUSE Labs
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From: Jiri Kosina <jkosina@suse.cz>
Newsgroups: gmane.linux.kernel.input
Subject: [PATCH 13/14] HID: picolcd_core: validate output report details
Date: Wed, 28 Aug 2013 22:31:52 +0200 (CEST)
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From: Kees Cook <keescook@chromium.org>
A HID device could send a malicious output report that would cause the
picolcd HID driver to trigger a NULL dereference during attr file writing.
CVE-2013-2899
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: stable@kernel.org
---
drivers/hid/hid-picolcd_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hid/hid-picolcd_core.c b/drivers/hid/hid-picolcd_core.c
index b48092d..72bba1e 100644
--- a/drivers/hid/hid-picolcd_core.c
+++ b/drivers/hid/hid-picolcd_core.c
@@ -290,7 +290,7 @@ static ssize_t picolcd_operation_mode_store(struct device *dev,
buf += 10;
cnt -= 10;
}
- if (!report)
+ if (!report || report->maxfield < 1)
return -EINVAL;
while (cnt > 0 && (buf[cnt-1] == '\n' || buf[cnt-1] == '\r'))
--
Jiri Kosina
SUSE Labs
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Path: news.gmane.org!not-for-mail
From: Jiri Kosina <jkosina@suse.cz>
Newsgroups: gmane.linux.kernel.input
Subject: [PATCH 14/14] HID: check for NULL field when setting values
Date: Wed, 28 Aug 2013 22:32:01 +0200 (CEST)
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From: Kees Cook <keescook@chromium.org>
Defensively check that the field to be worked on is not NULL.
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: stable@kernel.org
---
drivers/hid/hid-core.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 55798b2..192be6b 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1206,7 +1206,12 @@ EXPORT_SYMBOL_GPL(hid_output_report);
int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
{
- unsigned size = field->report_size;
+ unsigned size;
+
+ if (!field)
+ return -1;
+
+ size = field->report_size;
hid_dump_input(field->report->device, field->usage + offset, value);
--
Jiri Kosina
SUSE Labs
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1
config-generic
View File

@ -3346,6 +3346,7 @@ CONFIG_HID_SMARTJOYPLUS=m
CONFIG_HID_TOPSEED=m CONFIG_HID_TOPSEED=m
CONFIG_HID_THINGM=m CONFIG_HID_THINGM=m
CONFIG_HID_THRUSTMASTER=m CONFIG_HID_THRUSTMASTER=m
CONFIG_HID_XINMO=m
CONFIG_HID_ZEROPLUS=m CONFIG_HID_ZEROPLUS=m
CONFIG_HID_ZYDACRON=m CONFIG_HID_ZYDACRON=m
CONFIG_HID_SENSOR_HUB=m CONFIG_HID_SENSOR_HUB=m

5
kernel.spec
View File

@ -95,7 +95,7 @@ Summary: The Linux kernel
# The rc snapshot level # The rc snapshot level
%define rcrev 0 %define rcrev 0
# The git snapshot level # The git snapshot level
%define gitrev 13 %define gitrev 14
# Set rpm version accordingly # Set rpm version accordingly
%define rpmversion 3.%{upstream_sublevel}.0 %define rpmversion 3.%{upstream_sublevel}.0
%endif %endif
@ -2301,6 +2301,9 @@ fi
# ||----w | # ||----w |
# || || # || ||
%changelog %changelog
* Fri Sep 06 2013 Josh Boyer <jwboyer@fedoraproject.org> - 3.12.0-0.rc0.git14.1
- Linux v3.11-6855-g4de9ad9
* Fri Sep 06 2013 Kyle McMartin <kyle@redhat.com> * Fri Sep 06 2013 Kyle McMartin <kyle@redhat.com>
- [arm] enable KERNEL_MODE_NEON, safe to do, as the raid6 code tests hwcaps - [arm] enable KERNEL_MODE_NEON, safe to do, as the raid6 code tests hwcaps
so it won't impact tegra. so it won't impact tegra.

2
sources
View File

@ -1,2 +1,2 @@
fea363551ff45fbe4cb88497b863b261 linux-3.11.tar.xz fea363551ff45fbe4cb88497b863b261 linux-3.11.tar.xz
a0f29a37d42d8aa73393fb70992ffb11 patch-3.11-git13.xz fa0d29db568eef6e318c5d78dc4de40d patch-3.11-git14.xz