Update to 4.13.4
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linux (4.13.3-1~exp1) UNRELEASED; urgency=medium
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linux (4.13.4-1~exp1) UNRELEASED; urgency=medium
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* New upstream stable update:
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https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.3
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https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.4
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[ Ben Hutchings ]
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* [armhf,arm64] mmc: Enable MMC_BCM2835 (Closes: #845422)
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@ -1,64 +0,0 @@
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From: Dan Carpenter <dan.carpenter@oracle.com>
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Date: Wed, 30 Aug 2017 16:30:35 +0300
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Subject: scsi: qla2xxx: Fix an integer overflow in sysfs code
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Origin: https://git.kernel.org/linus/e6f77540c067b48dee10f1e33678415bfcc89017
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Bug: https://bugzilla.kernel.org/show_bug.cgi?id=194061
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Bug-Debian-Security: https://security-tracker.debian.org/tracker/CVE-2017-14051
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The value of "size" comes from the user. When we add "start + size" it
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could lead to an integer overflow bug.
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It means we vmalloc() a lot more memory than we had intended. I believe
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that on 64 bit systems vmalloc() can succeed even if we ask it to
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allocate huge 4GB buffers. So we would get memory corruption and likely
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a crash when we call ha->isp_ops->write_optrom() and ->read_optrom().
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Only root can trigger this bug.
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Link: https://bugzilla.kernel.org/show_bug.cgi?id=194061
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Cc: <stable@vger.kernel.org>
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Fixes: b7cc176c9eb3 ("[SCSI] qla2xxx: Allow region-based flash-part accesses.")
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Reported-by: shqking <shqking@gmail.com>
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Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
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Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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---
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drivers/scsi/qla2xxx/qla_attr.c | 8 ++++----
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1 file changed, 4 insertions(+), 4 deletions(-)
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diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
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index 08a1feb3a195..8c6ff1682fb1 100644
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--- a/drivers/scsi/qla2xxx/qla_attr.c
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+++ b/drivers/scsi/qla2xxx/qla_attr.c
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@@ -318,6 +318,8 @@ qla2x00_sysfs_write_optrom_ctl(struct file *filp, struct kobject *kobj,
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return -EINVAL;
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if (start > ha->optrom_size)
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return -EINVAL;
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+ if (size > ha->optrom_size - start)
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+ size = ha->optrom_size - start;
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mutex_lock(&ha->optrom_mutex);
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switch (val) {
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@@ -343,8 +345,7 @@ qla2x00_sysfs_write_optrom_ctl(struct file *filp, struct kobject *kobj,
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}
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ha->optrom_region_start = start;
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- ha->optrom_region_size = start + size > ha->optrom_size ?
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- ha->optrom_size - start : size;
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+ ha->optrom_region_size = start + size;
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ha->optrom_state = QLA_SREADING;
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ha->optrom_buffer = vmalloc(ha->optrom_region_size);
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@@ -417,8 +418,7 @@ qla2x00_sysfs_write_optrom_ctl(struct file *filp, struct kobject *kobj,
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}
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ha->optrom_region_start = start;
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- ha->optrom_region_size = start + size > ha->optrom_size ?
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- ha->optrom_size - start : size;
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+ ha->optrom_region_size = start + size;
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ha->optrom_state = QLA_SWRITING;
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ha->optrom_buffer = vmalloc(ha->optrom_region_size);
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--
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2.11.0
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@ -112,7 +112,6 @@ features/all/lockdown/arm64-add-kernel-config-option-to-lock-down-when.patch
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# Security fixes
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debian/i386-686-pae-pci-set-pci-nobios-by-default.patch
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bugfix/all/scsi-qla2xxx-Fix-an-integer-overflow-in-sysfs-code.patch
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bugfix/all/nl80211-check-for-the-required-netlink-attributes-presence.patch
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bugfix/x86/kvm-nvmx-don-t-allow-l2-to-access-the-hardware-cr8.patch
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bugfix/all/video-fbdev-aty-do-not-leak-uninitialized-padding-in.patch
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