nsegs is read from userspace. Limit its value and avoid overflowing nsegs
* sizeof(__u64) in the subsequent call to memdup_user().
This patch complements 481fe17e97 ("nilfs2: potential integer overflow
in nilfs_ioctl_clean_segments()").
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Cc: Haogang Chen <haogangchen@gmail.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
New pohmelfs is coming, and it is time to remove deadly old design
https://lkml.org/lkml/2012/2/8/293
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Shlomo Pongratz reported GRO L2 header check was suited for Ethernet
only, and failed on IB/ipoib traffic.
He provided a patch faking a zeroed header to let GRO aggregates frames.
Roland Dreier, Herbert Xu, and others suggested we change GRO L2 header
check to be more generic, ie not assuming L2 header is 14 bytes, but
taking into account hard_header_len.
__napi_gro_receive() has special handling for the common case (Ethernet)
to avoid a memcmp() call and use an inline optimized function instead.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Reported-by: Shlomo Pongratz <shlomop@mellanox.com>
Cc: Roland Dreier <roland@kernel.org>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit a0417fa3a1 ("net: Make qdisc_skb_cb upper size bound
explicit.") made it possible for a netdev driver to use skb->cb
between its header_ops.create method and its .ndo_start_xmit
method. Use this in ipoib_hard_header() to stash away the LL address
(GID + QPN), instead of the "ipoib_pseudoheader" hack. This allows
IPoIB to stop lying about its hard_header_len, which will let us fix
the L2 check for GRO.
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Due to the sysdev conversion to struct device, the cpu objects get
reused when adding a cpu after offlining it, which causes a big warning
that the kobject portion is not properly initialized.
So clear out the object before we register it again, so all is quiet.
Reported-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Those lines have two copies.
Not sure how it could happen, looks like git problem.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 9bef3d4197
"serial: group all the 8250 related code together"
inadvertently swept up the m32r driver in the move, because
it had comments mentioning 8250 registers within it. However
these are only there by nature of the driver being based off
the 8250 source code -- the hardware itself does not actually
have any relation to the original 8250 style UARTs.
Reported-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A collection of small fixes, mostly for regressions.
In addition, a few ASoC wm8994 updates are included, too.
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Merge tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
sound fixes#2 for 3.3-rc3
A collection of small fixes, mostly for regressions.
In addition, a few ASoC wm8994 updates are included, too.
* tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: wm8994: Disable line output discharge prior to ramping VMID
ASoC: wm8994: Fix typo in VMID ramp setting
ALSA: oxygen, virtuoso: fix exchanged L/R volumes of aux and CD inputs
ALSA: usb-audio: add Edirol UM-3G support
ALSA: hda - add support for Uniwill ECS M31EI notebook
ALSA: hda - Fix error handling in patch_ca0132.c
ASoC: wm8994: Enabling VMID should take a runtime PM reference
ALSA: hda/realtek - Fix a wrong condition
ALSA: emu8000: Remove duplicate linux/moduleparam.h include from emu8000_patch.c
ALSA: hda/realtek - Add missing Bass and CLFE as vmaster slaves
ASoC: wm_hubs: Correct line input to line output 2 paths
ASoC: cs42l73: Fix Output [X|A|V]SP_SCLK Sourcing Mode setting for master mode
ASoC: wm8962: Fix word length configuration
ASoC: core: Better support for idle_bias_off suspend ignores
ASoC: wm8994: Remove ASoC level register cache sync
ASoC: wm_hubs: Fix routing of input PGAs to line output mixer
This patch fixes UML build:
CC drivers/staging/android/ram_console.o
drivers/staging/android/ram_console.c: In function
'ram_console_driver_probe':
drivers/staging/android/ram_console.c:358:2: error: implicit declaration
of function 'ioremap' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[3]: *** [drivers/staging/android/ram_console.o] Error 1
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In https://bugs.archlinux.org/task/27996, failure of driver r8712u is
reported, with a timeout during module loading due to synchronous loading
of the firmware. The code now uses request_firmware_nowait().
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The stub_probe function can be called as soon as the stub_driver is
registered. This can lead to the busid_table_lock being used before it
is initialized. Moved calling the init_busid_table function (which
initalizes this spinlock) to be called earlier in the init function to
prevent this from happening.
Signed-off-by: Bart Westgeest <bart@elbrys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When this driver was upgraded to the vendor 20100831 version in
commit 93c55dda09 et al,, one listhead initialization was missed.
This broke complete operation of the driver whenever AP mode was
enabled.
This patch fixes https://bugs.archlinux.org/task/27996.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.stable.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This structure is still used after it has been freed, since it
is being allocated in probe, calls to free it have been moved to
module's remove routine.
This should fix the follwoing messages when attempting to remove the
module:
drv_get_first_dev_extension: Failed to retrieve the object handle
drv_get_first_dev_extension: Failed to retrieve the object handle
drv_destroy: Failed to store DRV object
mgr_destroy: Failed to store MGR object
Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There are two members of pr_ctxt allocated during bridge_open that
are never freed resulting in memory leaks, these are stream_id and
node_id, they are now freed on release of the handle (bridge_release)
right before freeing pr_ctxt.
Error path for bridge_open was also fixed since the same variables
could result in memory leaking due to missing handling of failure
scenarios. While at it, the indentation changes were introduced to
avoid interleaved goto statements inside big if blocks.
Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If a process forked and the child process was killed by the
lowmemorykiller, the lowmemory killer would be disabled until
the parent process reaped the child or it died itself.
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In a multithreaded workload, the zv_curr_dist_counts
and zv_cumul_dist_counts statistics are being corrupted
because the increments and decrements in zv_create
and zv_free are not atomic.
This patch converts these statistics and their corresponding
increments/decrements/reads to atomic operations.
Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add MODULE_LICENSE() for this source module to fix build warning:
WARNING: modpost: missing MODULE_LICENSE() in drivers/staging/media/go7007/go7007-usb.o
see include/linux/module.h for more information
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Ross Cohen <rcohen@snurgle.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Opening the binder driver and sharing the file returned with
other processes (e.g. by calling fork) can crash the kernel.
Prevent these crashes with the following changes:
- Add a mutex to protect against two processes mmapping the
same binder_proc.
- After locking mmap_sem, check that the vma we want to access
(still) points to the same mm_struct.
- Use proc->tsk instead of current to get the files struct since
this is where we get the rlimit from.
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Addroid pmem driver is no longer used in any of the Android products.
This patch removes pmem driver from Android staging area
Reference: https://lkml.org/lkml/2012/1/23/183
Signed-off-by: Shuah Khan <shuahkhan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Programming an image was broken, because odev->buf_offs was not advanced
for val == 0 in append_values(). This regression was introduced in:
commit 1ff12a4aa3
Author: Kevin A. Granade <kevin.granade@gmail.com>
Date: Sat Sep 5 01:03:39 2009 -0500
Staging: asus_oled: Cleaned up checkpatch issues.
Fix the image processing by special-casing val == 0.
I have tested this change on an Asus G50V laptop only.
Cc: Jakub Schmidtke <sjakub@gmail.com>
Cc: Kevin A. Granade <kevin.granade@gmail.com>
Signed-off-by: Pekka Paalanen <pq@iki.fi>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
If user-space partially unmaps the driver, binder_vma_open
would dump the kernel stack. This is not a kernel bug however
and will be treated as if the whole area was unmapped once
binder_vma_close gets called.
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
SWIZ_BITS > 8 results in a much larger number of "tmem_obj"
allocations, likely one per page-placed-in-frontswap. The
tmem_obj is not huge (roughly 100 bytes), but it is large
enough to add a not-insignificant memory overhead to zcache.
The SWIZ_BITS=8 will get roughly the same lock contention
without the space wastage.
The effect of SWIZ_BITS can be thought of as "2^SWIZ_BITS is
the number of unique oids that be generated" (This concept is
limited to frontswap's use of tmem).
Acked-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
I discovered this deadlock condition awhile ago working on RAMster
but it affects zcache as well. The list spinlock must be
locked prior to the page spinlock and released after. As
a result, the page copy must also be done while the locks are held.
Applies to 3.2. Konrad, please push (via GregKH?)...
this is definitely a bug fix so need not be pushed during
a -rc0 window.
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The create/free mmap offset code must be synchronized. Yet only some
callers of omap_gem_mmap_offset() held struct_mutex. Leading to various
crashes around drm_mm_insert_helper_range(). (In the free-object path,
which is currently the only place we drm_gem_free_mmap_offset(),
struct_mutex is already held.)
Signed-off-by: Rob Clark <rob@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Move the free after the final uses.
The semantic patch that makes this report is available
in scripts/coccinelle/free/kfree.cocci.
More information about semantic patching is available at
http://coccinelle.lip6.fr/
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix minimum width/height so planes could be used to implement
hw mouse cursor.
Signed-off-by: Rob Clark <rob@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add support in framebuffer objects for other color formats and multi-
planar YUV (NV12). Since this requires changing the API between the
plane and fb for getting scanout information (paddr, etc), take
advantage of the opportunity and put in place a way to allow fb's to
be unpinned when they are not being scanned out. Now, before start
of scanout the plane calls omap_framebuffer_pin() which takes care
to pin all the backing bo's, then omap_framebuffer_update_scanout()
however many times to update the scanout address(es), etc, and then
when finished omap_framebuffer_unpin().
Signed-off-by: Rob Clark <rob@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Because framebuffer layer and overlay scanout video pipes are basically
thing in OMAP display subsystem (the only difference being that the first
video pipe does not support scaling or YUV formats), much of the CRTC
code is pulled into the plane implementation, and a private plane object
is used by the CRTC object. This avoids code duplication between the
plane and CRTC.
Signed-off-by: Rob Clark <rob@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Update to reflect changes in:
"drm: add an fb creation ioctl that takes a pixel format v5"
Signed-off-by: Rob Clark <rob@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Update to reflect changes in:
"Make the per-driver file_operations struct const"
Signed-off-by: Rob Clark <rob@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
It's now "properly" merged into the DRM tree in the kernel, so delete
the staging version of the driver as it is far obsolete and broken.
Requested-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
An identical patch has been merged for i9xx_crtc_mode_set:
Commit 59df7b1771
Author: Christian Schmidt <schmidt@digadd.de>
Date: Mon Dec 19 20:03:33 2011 +0100
drm/intel: Fix initialization if startup happens in interlaced mode [v2]
But that one neglected to fix up the ironlake+ path.
This should fix the issue reported by Alfonso Fiore where booting with
only a HDMI cable connected to his TV failed to display anything. The
issue is that the bios set up things for 1080i and used the pannel
fitter to scale up the lower progressive resolutions. We failed to
clear the interlace bit in the PIPEACONF register, resulting in havoc.
v2: Be more paranoid and just unconditionally clear the field before
setting new values.
Cc: Peter Ross <pross@xvid.org>
Cc: Alfonso Fiore <alfonso.fiore@gmail.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Keith Packard <keithp@keithp.com>
commit 8268f5a741 ("deny partial write for loop dev fd") tried to fix the
loop device partial read information leak problem. But it changed the
semantics of read behavior. When we read beyond the end of the device we
should get 0 bytes, which is normal behavior, we should not just return
-EIO
Instead of returning -EIO, zero out the bio to avoid information leak in
case of partail read.
Signed-off-by: Dave Young <dyoung@redhat.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Tested-by: Jeff Moyer <jmoyer@redhat.com>
Cc: Dmitry Monakhov <dmonakhov@sw.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
There were two places bio_get_nr_vecs() could overflow:
First, it did a left shift to convert from sectors to bytes immediately
before dividing by PAGE_SIZE. If PAGE_SIZE ever was less than 512 a great
many things would break, so dividing by PAGE_SIZE >> 9 is safe and will
generate smaller code too.
The nastier overflow was in the DIV_ROUND_UP() (that's what the code was
effectively doing, anyways). If n + d overflowed, the whole thing would
return 0 which breaks things rather effectively.
bio_get_nr_vecs() doesn't claim to give an exact value anyways, so the
DIV_ROUND_UP() is silly; we could do a straight divide except if a
device's queue_max_sectors was less than PAGE_SIZE we'd return 0. So we
just add 1; this should always be safe - things will break badly if
bio_get_nr_vecs() returns > BIO_MAX_PAGES (bio_alloc() will suddenly start
failing) but it's queue_max_segments that must guard against this, if
queue_max_sectors is preventing this from happen things are going to
explode on architectures with different PAGE_SIZE.
Signed-off-by: Kent Overstreet <koverstreet@google.com>
Cc: Tejun Heo <tj@kernel.org>
Acked-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
that were sent. They collide with some -next work so I'd really like to
get them into 3.3-rc3 if possible to merge back up into the -next code.
All driver specific and unexciting in the grand scheme of things.
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Merge tag 'asoc-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
A few small WM8994 updates to go on top of the previous lot of things
that were sent. They collide with some -next work so I'd really like to
get them into 3.3-rc3 if possible to merge back up into the -next code.
All driver specific and unexciting in the grand scheme of things.
The VMID ramp rate is supposed to be 0x3, not 11b. Fix that.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
floppy driver does not call add_disk() on all the drives hence we don't take
gendisk reference on request queue for these drives. Don't call put_disk()
with disk->queue set, otherwise we try to put the reference we never took.
Reported-and-tested-by: Dirk Gouders <gouders@et.bocholt.fh-gelsenkirchen.de>
Signed-off-by: Vivek Goyal<vgoyal@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
add_disk() takes gendisk reference on request queue. If driver failed during
initialization and never called add_disk() then that extra reference is not
taken. That reference is put in put_disk(). floppy driver allocates the
disk, allocates queue, sets disk->queue and then relizes that floppy
controller is not present. It tries to tear down everything and tries to
put a reference down in put_disk() which was never taken.
In such error cases cleanup disk->queue before calling put_disk() so that
we never try to put down a reference which was never taken in first place.
Reported-and-tested-by: Suresh Jayaraman <sjayaraman@suse.com>
Tested-by: Dirk Gouders <gouders@et.bocholt.fh-gelsenkirchen.de>
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The keeplocked variable in the cdrom driver is shared across multiple
drives, but set in per-device ioctls. Move it to the per-device struct,
avoiding that the setting on one drive affects the driver's behavior
when closing another.
[ Impact: limit udev's confusion to one drive when a CD burning program
unlocks the CD door at the end of burning. ]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
We create "bsg" link if q->kobj.sd is not NULL, so remove it only
when the same condition is true.
Fixes:
WARNING: at fs/sysfs/inode.c:323 sysfs_hash_and_remove+0x2b/0x77()
sysfs: can not remove 'bsg', no directory
Call Trace:
[<c0429683>] warn_slowpath_common+0x6a/0x7f
[<c0537a68>] ? sysfs_hash_and_remove+0x2b/0x77
[<c042970b>] warn_slowpath_fmt+0x2b/0x2f
[<c0537a68>] sysfs_hash_and_remove+0x2b/0x77
[<c053969a>] sysfs_remove_link+0x20/0x23
[<c05d88f1>] bsg_unregister_queue+0x40/0x6d
[<c0692263>] __scsi_remove_device+0x31/0x9d
[<c069149f>] scsi_forget_host+0x41/0x52
[<c0689fa9>] scsi_remove_host+0x71/0xe0
[<f7de5945>] quiesce_and_remove_host+0x51/0x83 [usb_storage]
[<f7de5a1e>] usb_stor_disconnect+0x18/0x22 [usb_storage]
[<c06c29de>] usb_unbind_interface+0x4e/0x109
[<c067a80f>] __device_release_driver+0x6b/0xa6
[<c067a861>] device_release_driver+0x17/0x22
[<c067a46a>] bus_remove_device+0xd6/0xe6
[<c06785e2>] device_del+0xf2/0x137
[<c06c101f>] usb_disable_device+0x94/0x1a0
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
According to a bug report, it doesn't have one.
Cc: stable@kernel.org
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=44263
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Keith Packard <keithp@keithp.com>
The driver accidentally exchanged the left/right fields for stereo AC'97
mixer registers. This affected only the aux and CD inputs because the
line input bypasses the AC'97 codec and the mic input is mono; cards
without AC'97 (Xonar DS/DG/HDAV Slim, HG2PCI, HiFier) were not affected.
Reported-and-tested-by: Abby Cedar <abbycedar@yahoo.com.au>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Cc: 2.6.31+ <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
