... into a global, two-dimensional array and service subsequent reads from
that cache to avoid rdmsr_on_cpu() calls during CPU hotplug (IPIs with IRQs
disabled).
In addition, this fixes a KASAN slab-out-of-bounds read due to wrong usage
of the bank->blocks pointer.
Fixes: 27bd595027 ("x86/mce/AMD: Get address from already initialized block")
Reported-by: Johannes Hirte <johannes.hirte@datenkhaos.de>
Tested-by: Johannes Hirte <johannes.hirte@datenkhaos.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Yazen Ghannam <yazen.ghannam@amd.com>
Link: http://lkml.kernel.org/r/20180414004230.GA2033@probook
Merge misc fixes from Andrew Morton:
"10 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
hfsplus: stop workqueue when fill_super() failed
mm: don't allow deferred pages with NEED_PER_CPU_KM
MAINTAINERS: add Q: entry to kselftest for patchwork project
radix tree: fix multi-order iteration race
radix tree test suite: multi-order iteration race
radix tree test suite: add item_delete_rcu()
radix tree test suite: fix compilation issue
radix tree test suite: fix mapshift build target
include/linux/mm.h: add new inline function vmf_error()
lib/test_bitmap.c: fix bitmap optimisation tests to report errors correctly
Remove the last of the "select DELL_SMBIOS" references in the Kconfig.
The following is an automated git shortlog:
DELL_WMI use depends on instead of select for DELL_SMBIOS
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Merge tag 'platform-drivers-x86-v4.17-3' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver fix from Darren Hart:
"Remove the last of the "select DELL_SMBIOS" references in the Kconfig"
* tag 'platform-drivers-x86-v4.17-3' of git://git.infradead.org/linux-platform-drivers-x86:
platform/x86: DELL_WMI use depends on instead of select for DELL_SMBIOS
stm32 clk drivers that really always need to be there when that
particular machine is compiled in and boot fix on i.MX for Stefan who
noticed odd behavior from the critical flag patch that came in during
the merge window.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
- a modified revert of a patch that made new choices come out for a
couple stm32 clk drivers that really always need to be there when
that particular machine is compiled in
- boot fix on i.MX for Stefan who noticed odd behavior from the
critical flag patch that came in during the merge window
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: stm32: fix: stm32 clock drivers are not compiled by default
clk: imx6ull: use OSC clock during AXI rate change
syzbot is reporting ODEBUG messages at hfsplus_fill_super() [1]. This
is because hfsplus_fill_super() forgot to call cancel_delayed_work_sync().
As far as I can see, it is hfsplus_mark_mdb_dirty() from
hfsplus_new_inode() in hfsplus_fill_super() that calls
queue_delayed_work(). Therefore, I assume that hfsplus_new_inode() does
not fail if queue_delayed_work() was called, and the out_put_hidden_dir
label is the appropriate location to call cancel_delayed_work_sync().
[1] https://syzkaller.appspot.com/bug?id=a66f45e96fdbeb76b796bf46eb25ea878c42a6c9
Link: http://lkml.kernel.org/r/964a8b27-cd69-357c-fe78-76b066056201@I-love.SAKURA.ne.jp
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reported-by: syzbot <syzbot+4f2e5f086147d543ab03@syzkaller.appspotmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Howells <dhowells@redhat.com>
Cc: Ernesto A. Fernandez <ernesto.mnd.fernandez@gmail.com>
Cc: Vyacheslav Dubeyko <slava@dubeyko.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It is unsafe to do virtual to physical translations before mm_init() is
called if struct page is needed in order to determine the memory section
number (see SECTION_IN_PAGE_FLAGS). This is because only in mm_init()
we initialize struct pages for all the allocated memory when deferred
struct pages are used.
My recent fix in commit c9e97a1997 ("mm: initialize pages on demand
during boot") exposed this problem, because it greatly reduced number of
pages that are initialized before mm_init(), but the problem existed
even before my fix, as Fengguang Wu found.
Below is a more detailed explanation of the problem.
We initialize struct pages in four places:
1. Early in boot a small set of struct pages is initialized to fill the
first section, and lower zones.
2. During mm_init() we initialize "struct pages" for all the memory that
is allocated, i.e reserved in memblock.
3. Using on-demand logic when pages are allocated after mm_init call
(when memblock is finished)
4. After smp_init() when the rest free deferred pages are initialized.
The problem occurs if we try to do va to phys translation of a memory
between steps 1 and 2. Because we have not yet initialized struct pages
for all the reserved pages, it is inherently unsafe to do va to phys if
the translation itself requires access of "struct page" as in case of
this combination: CONFIG_SPARSE && !CONFIG_SPARSE_VMEMMAP
The following path exposes the problem:
start_kernel()
trap_init()
setup_cpu_entry_areas()
setup_cpu_entry_area(cpu)
get_cpu_gdt_paddr(cpu)
per_cpu_ptr_to_phys(addr)
pcpu_addr_to_page(addr)
virt_to_page(addr)
pfn_to_page(__pa(addr) >> PAGE_SHIFT)
We disable this path by not allowing NEED_PER_CPU_KM with deferred
struct pages feature.
The problems are discussed in these threads:
http://lkml.kernel.org/r/20180418135300.inazvpxjxowogyge@wfg-t540p.sh.intel.comhttp://lkml.kernel.org/r/20180419013128.iurzouiqxvcnpbvz@wfg-t540p.sh.intel.comhttp://lkml.kernel.org/r/20180426202619.2768-1-pasha.tatashin@oracle.com
Link: http://lkml.kernel.org/r/20180515175124.1770-1-pasha.tatashin@oracle.com
Fixes: 3a80a7fa79 ("mm: meminit: initialise a subset of struct pages if CONFIG_DEFERRED_STRUCT_PAGE_INIT is set")
Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Steven Sistare <steven.sistare@oracle.com>
Cc: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Dennis Zhou <dennisszhou@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A new patchwork project is created to track kselftest patches. Update
the kselftest entry in the MAINTAINERS file adding 'Q:' entry:
https://patchwork.kernel.org/project/linux-kselftest/list/
Link: http://lkml.kernel.org/r/20180515164427.12201-1-shuah@kernel.org
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix a race in the multi-order iteration code which causes the kernel to
hit a GP fault. This was first seen with a production v4.15 based
kernel (4.15.6-300.fc27.x86_64) utilizing a DAX workload which used
order 9 PMD DAX entries.
The race has to do with how we tear down multi-order sibling entries
when we are removing an item from the tree. Remember for example that
an order 2 entry looks like this:
struct radix_tree_node.slots[] = [entry][sibling][sibling][sibling]
where 'entry' is in some slot in the struct radix_tree_node, and the
three slots following 'entry' contain sibling pointers which point back
to 'entry.'
When we delete 'entry' from the tree, we call :
radix_tree_delete()
radix_tree_delete_item()
__radix_tree_delete()
replace_slot()
replace_slot() first removes the siblings in order from the first to the
last, then at then replaces 'entry' with NULL. This means that for a
brief period of time we end up with one or more of the siblings removed,
so:
struct radix_tree_node.slots[] = [entry][NULL][sibling][sibling]
This causes an issue if you have a reader iterating over the slots in
the tree via radix_tree_for_each_slot() while only under
rcu_read_lock()/rcu_read_unlock() protection. This is a common case in
mm/filemap.c.
The issue is that when __radix_tree_next_slot() => skip_siblings() tries
to skip over the sibling entries in the slots, it currently does so with
an exact match on the slot directly preceding our current slot.
Normally this works:
V preceding slot
struct radix_tree_node.slots[] = [entry][sibling][sibling][sibling]
^ current slot
This lets you find the first sibling, and you skip them all in order.
But in the case where one of the siblings is NULL, that slot is skipped
and then our sibling detection is interrupted:
V preceding slot
struct radix_tree_node.slots[] = [entry][NULL][sibling][sibling]
^ current slot
This means that the sibling pointers aren't recognized since they point
all the way back to 'entry', so we think that they are normal internal
radix tree pointers. This causes us to think we need to walk down to a
struct radix_tree_node starting at the address of 'entry'.
In a real running kernel this will crash the thread with a GP fault when
you try and dereference the slots in your broken node starting at
'entry'.
We fix this race by fixing the way that skip_siblings() detects sibling
nodes. Instead of testing against the preceding slot we instead look
for siblings via is_sibling_entry() which compares against the position
of the struct radix_tree_node.slots[] array. This ensures that sibling
entries are properly identified, even if they are no longer contiguous
with the 'entry' they point to.
Link: http://lkml.kernel.org/r/20180503192430.7582-6-ross.zwisler@linux.intel.com
Fixes: 148deab223 ("radix-tree: improve multiorder iterators")
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reported-by: CR, Sapthagirish <sapthagirish.cr@intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add a test which shows a race in the multi-order iteration code. This
test reliably hits the race in under a second on my machine, and is the
result of a real bug report against kernel a production v4.15 based
kernel (4.15.6-300.fc27.x86_64). With a real kernel this issue is hit
when using order 9 PMD DAX radix tree entries.
The race has to do with how we tear down multi-order sibling entries
when we are removing an item from the tree. Remember that an order 2
entry looks like this:
struct radix_tree_node.slots[] = [entry][sibling][sibling][sibling]
where 'entry' is in some slot in the struct radix_tree_node, and the
three slots following 'entry' contain sibling pointers which point back
to 'entry.'
When we delete 'entry' from the tree, we call :
radix_tree_delete()
radix_tree_delete_item()
__radix_tree_delete()
replace_slot()
replace_slot() first removes the siblings in order from the first to the
last, then at then replaces 'entry' with NULL. This means that for a
brief period of time we end up with one or more of the siblings removed,
so:
struct radix_tree_node.slots[] = [entry][NULL][sibling][sibling]
This causes an issue if you have a reader iterating over the slots in
the tree via radix_tree_for_each_slot() while only under
rcu_read_lock()/rcu_read_unlock() protection. This is a common case in
mm/filemap.c.
The issue is that when __radix_tree_next_slot() => skip_siblings() tries
to skip over the sibling entries in the slots, it currently does so with
an exact match on the slot directly preceding our current slot.
Normally this works:
V preceding slot
struct radix_tree_node.slots[] = [entry][sibling][sibling][sibling]
^ current slot
This lets you find the first sibling, and you skip them all in order.
But in the case where one of the siblings is NULL, that slot is skipped
and then our sibling detection is interrupted:
V preceding slot
struct radix_tree_node.slots[] = [entry][NULL][sibling][sibling]
^ current slot
This means that the sibling pointers aren't recognized since they point
all the way back to 'entry', so we think that they are normal internal
radix tree pointers. This causes us to think we need to walk down to a
struct radix_tree_node starting at the address of 'entry'.
In a real running kernel this will crash the thread with a GP fault when
you try and dereference the slots in your broken node starting at
'entry'.
In the radix tree test suite this will be caught by the address
sanitizer:
==27063==ERROR: AddressSanitizer: heap-buffer-overflow on address
0x60c0008ae400 at pc 0x00000040ce4f bp 0x7fa89b8fcad0 sp 0x7fa89b8fcac0
READ of size 8 at 0x60c0008ae400 thread T3
#0 0x40ce4e in __radix_tree_next_slot /home/rzwisler/project/linux/tools/testing/radix-tree/radix-tree.c:1660
#1 0x4022cc in radix_tree_next_slot linux/../../../../include/linux/radix-tree.h:567
#2 0x4022cc in iterator_func /home/rzwisler/project/linux/tools/testing/radix-tree/multiorder.c:655
#3 0x7fa8a088d50a in start_thread (/lib64/libpthread.so.0+0x750a)
#4 0x7fa8a03bd16e in clone (/lib64/libc.so.6+0xf516e)
Link: http://lkml.kernel.org/r/20180503192430.7582-5-ross.zwisler@linux.intel.com
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: CR, Sapthagirish <sapthagirish.cr@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently the lifetime of "struct item" entries in the radix tree are
not controlled by RCU, but are instead deleted inline as they are
removed from the tree.
In the following patches we add a test which has threads iterating over
items pulled from the tree and verifying them in an
rcu_read_lock()/rcu_read_unlock() section. This means that though an
item has been removed from the tree it could still be being worked on by
other threads until the RCU grace period expires. So, we need to
actually free the "struct item" structures at the end of the grace
period, just as we do with "struct radix_tree_node" items.
Link: http://lkml.kernel.org/r/20180503192430.7582-4-ross.zwisler@linux.intel.com
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: CR, Sapthagirish <sapthagirish.cr@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pulled from a patch from Matthew Wilcox entitled "xarray: Add definition
of struct xarray":
> From: Matthew Wilcox <mawilcox@microsoft.com>
> Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
https://patchwork.kernel.org/patch/10341249/
These defines fix this compilation error:
In file included from ./linux/radix-tree.h:6:0,
from ./linux/../../../../include/linux/idr.h:15,
from ./linux/idr.h:1,
from idr.c:4:
./linux/../../../../include/linux/idr.h: In function `idr_init_base':
./linux/../../../../include/linux/radix-tree.h:129:2: warning: implicit declaration of function `spin_lock_init'; did you mean `spinlock_t'? [-Wimplicit-function-declaration]
spin_lock_init(&(root)->xa_lock); \
^
./linux/../../../../include/linux/idr.h:126:2: note: in expansion of macro `INIT_RADIX_TREE'
INIT_RADIX_TREE(&idr->idr_rt, IDR_RT_MARKER);
^~~~~~~~~~~~~~~
by providing a spin_lock_init() wrapper for the v4.17-rc* version of the
radix tree test suite.
Link: http://lkml.kernel.org/r/20180503192430.7582-3-ross.zwisler@linux.intel.com
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: CR, Sapthagirish <sapthagirish.cr@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit c6ce3e2fe3 ("radix tree test suite: Add config option for map
shift") introduced a phony makefile target called 'mapshift' that ends
up generating the file generated/map-shift.h. This phony target was
then added as a dependency of the top level 'targets' build target,
which is what is run when you go to tools/testing/radix-tree and just
type 'make'.
Unfortunately, this phony target doesn't actually work as a dependency,
so you end up getting:
$ make
make: *** No rule to make target 'generated/map-shift.h', needed by 'main.o'. Stop.
make: *** Waiting for unfinished jobs....
Fix this by making the file generated/map-shift.h our real makefile
target, and add this a dependency of the top level build target.
Link: http://lkml.kernel.org/r/20180503192430.7582-2-ross.zwisler@linux.intel.com
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: CR, Sapthagirish <sapthagirish.cr@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Many places in drivers/ file systems, error was handled in a common way
like below:
ret = (ret == -ENOMEM) ? VM_FAULT_OOM : VM_FAULT_SIGBUS;
vmf_error() will replace this and return vm_fault_t type err.
A lot of drivers and filesystems currently have a rather complex mapping
of errno-to-VM_FAULT code. We have been able to eliminate a lot of it
by just returning VM_FAULT codes directly from functions which are
called exclusively from the fault handling path.
Some functions can be called both from the fault handler and other
context which are expecting an errno, so they have to continue to return
an errno. Some users still need to choose different behaviour for
different errnos, but vmf_error() captures the essential error
translation that's common to all users, and those that need to handle
additional errors can handle them first.
Link: http://lkml.kernel.org/r/20180510174826.GA14268@jordon-HP-15-Notebook-PC
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
I had neglected to increment the error counter when the tests failed,
which made the tests noisy when they fail, but not actually return an
error code.
Link: http://lkml.kernel.org/r/20180509114328.9887-1-mpe@ellerman.id.au
Fixes: 3cc78125a0 ("lib/test_bitmap.c: add optimisation tests")
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reported-by: Michael Ellerman <mpe@ellerman.id.au>
Tested-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Yury Norov <ynorov@caviumnetworks.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: <stable@vger.kernel.org> [4.13+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If DELL_WMI "select"s DELL_SMBIOS, the DELL_SMBIOS dependencies are
ignored and it is still possible to end up with unmet direct
dependencies.
Change the select to a depends on.
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Just three commits.
The two cxl ones are not fixes per se, but they modify code that was added this
cycle so that it will work with a recent firmware change.
And then a fix for a recent commit that added sleeps in the NVRAM code, which
needs to be more careful and not sleep if eg. we're called in the panic() path.
Thanks to:
Nicholas Piggin, Philippe Bergheaud, Christophe Lombard.
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Merge tag 'powerpc-4.17-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Just three commits.
The two cxl ones are not fixes per se, but they modify code that was
added this cycle so that it will work with a recent firmware change.
And then a fix for a recent commit that added sleeps in the NVRAM
code, which needs to be more careful and not sleep if eg. we're called
in the panic() path.
Thanks to Nicholas Piggin, Philippe Bergheaud, Christophe Lombard"
* tag 'powerpc-4.17-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/powernv: Fix NVRAM sleep in invalid context when crashing
cxl: Report the tunneled operations status
cxl: Set the PBCQ Tunnel BAR register when enabling capi mode
Fix an ACPICA regression introduced in this cycle and related to the
handling of package objects loaded by the Load and loadTable AML
operators that are not initialized properly after recent changes (Bob
Moore).
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Merge tag 'acpi-4.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Fix an ACPICA regression introduced in this cycle and related to the
handling of package objects loaded by the Load and loadTable AML
operators that are not initialized properly after recent changes (Bob
Moore)"
* tag 'acpi-4.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPICA: Add deferred package support for the Load and loadTable operators
Here are some USB driver fixes fro 4.17-rc6.
They resolve some reported bugs in the musb driver, the xhci driver, and
a number of small fixes for the usbip driver.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some USB driver fixes fro 4.17-rc6.
They resolve some reported bugs in the musb driver, the xhci driver,
and a number of small fixes for the usbip driver.
All of these have been in linux-next with no reported issues"
* tag 'usb-4.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usbip: usbip_host: fix bad unlock balance during stub_probe()
usbip: usbip_host: fix NULL-ptr deref and use-after-free errors
usbip: usbip_host: run rebind from exit when module is removed
usbip: usbip_host: delete device from busid_table after rebind
usbip: usbip_host: refine probe and disconnect debug msgs to be useful
usb: musb: fix remote wakeup racing with suspend
xhci: Fix USB3 NULL pointer dereference at logical disconnect.
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Merge tag 'for-linus-20180518' of git://git.kernel.dk/linux-block
Pull block fix from Jens Axboe:
"Single fix this time, from Coly, fixing a failure case when
CONFIG_DEBUGFS isn't enabled"
* tag 'for-linus-20180518' of git://git.kernel.dk/linux-block:
bcache: return 0 from bch_debug_init() if CONFIG_DEBUG_FS=n
A small collection of fixes accumilated since the merge window, all
fairly small and driver specific.
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Merge tag 'spi-fix-v4.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A small collection of fixes accumilated since the merge window, all
fairly small and driver specific"
* tag 'spi-fix-v4.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: bcm2835aux: ensure interrupts are enabled for shared handler
spi: bcm-qspi: Always read and set BSPI_MAST_N_BOOT_CTRL
spi: bcm-qspi: Avoid setting MSPI_CDRAM_PCS for spi-nor master
spi: pxa2xx: Allow 64-bit DMA
spi: cadence: Add usleep_range() for cdns_spi_fill_tx_fifo()
spi: sh-msiof: Fix bit field overflow writes to TSCR/RSCR
spi: imx: Update MODULE_DESCRIPTION to "SPI Controller driver"
- Fix read path of the Marvell NAND driver
- Make sure we don't pass a u64 to ndelay()
CFI fixes:
- Fix the map_word_andequal() implementation
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Merge tag 'mtd/fixes-for-4.17-rc6' of git://git.infradead.org/linux-mtd
Pull mtd fixes from Boris Brezillon:
"NAND fixes:
- Fix read path of the Marvell NAND driver
- Make sure we don't pass a u64 to ndelay()
CFI fix:
- Fix the map_word_andequal() implementation"
* tag 'mtd/fixes-for-4.17-rc6' of git://git.infradead.org/linux-mtd:
mtd: rawnand: Fix return type of __DIVIDE() when called with 32-bit
mtd: rawnand: marvell: Fix read logic for layouts with ->nchunks > 2
mtd: Fix comparison in map_word_andequal()
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Merge tag 'drm-fixes-for-v4.17-rc6' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Pretty quiet week again: one vmwgfx regression fix, one core buffer
overflow fix, one vc4 leak fix and three i915 fixes"
* tag 'drm-fixes-for-v4.17-rc6' of git://people.freedesktop.org/~airlied/linux:
drm/dumb-buffers: Integer overflow in drm_mode_create_ioctl()
drm/i915/gen9: Add WaClearHIZ_WM_CHICKEN3 for bxt and glk
drm/vmwgfx: Set dmabuf_size when vmw_dmabuf_init is successful
drm/vc4: Fix leak of the file_priv that stored the perfmon.
drm/i915/execlists: Use rmb() to order CSB reads
drm/i915/userptr: reject zero user_size
drm: Match sysfs name in link removal to link creation
- Userptr IOCTL zero size check (Matt)
- Two hardware quirk fixes (Michel & Chris)
* tag 'drm-intel-fixes-2018-05-17' of git://anongit.freedesktop.org/drm/drm-intel:
drm/i915/gen9: Add WaClearHIZ_WM_CHICKEN3 for bxt and glk
drm/i915/execlists: Use rmb() to order CSB reads
drm/i915/userptr: reject zero user_size
Fix race condition when accessing System Management Network registers
Fix reading critical temperatures on F15h M60h and M70h
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Merge tag 'hwmon-for-linus-v4.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Two k10temp fixes:
- fix race condition when accessing System Management Network
registers
- fix reading critical temperatures on F15h M60h and M70h
Also add PCI ID's for the AMD Raven Ridge root bridge"
* tag 'hwmon-for-linus-v4.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (k10temp) Use API function to access System Management Network
x86/amd_nb: Add support for Raven Ridge CPUs
hwmon: (k10temp) Fix reading critical temperature register
* x86 fixes: PCID, UMIP, locking
* Improved support for recent Windows version that have a 2048 Hz
APIC timer.
* Rename KVM_HINTS_DEDICATED CPUID bit to KVM_HINTS_REALTIME
* Better behaved selftests.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
- ARM/ARM64 locking fixes
- x86 fixes: PCID, UMIP, locking
- improved support for recent Windows version that have a 2048 Hz APIC
timer
- rename KVM_HINTS_DEDICATED CPUID bit to KVM_HINTS_REALTIME
- better behaved selftests
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: rename KVM_HINTS_DEDICATED to KVM_HINTS_REALTIME
KVM: arm/arm64: VGIC/ITS save/restore: protect kvm_read_guest() calls
KVM: arm/arm64: VGIC/ITS: protect kvm_read_guest() calls with SRCU lock
KVM: arm/arm64: VGIC/ITS: Promote irq_lock() in update_affinity
KVM: arm/arm64: Properly protect VGIC locks from IRQs
KVM: X86: Lower the default timer frequency limit to 200us
KVM: vmx: update sec exec controls for UMIP iff emulating UMIP
kvm: x86: Suppress CR3_PCID_INVD bit only when PCIDs are enabled
KVM: selftests: exit with 0 status code when tests cannot be run
KVM: hyperv: idr_find needs RCU protection
x86: Delay skip of emulated hypercall instruction
KVM: Extend MAX_IRQ_ROUTES to 4096 for all archs
We have a core fix in the compat code for covering a potential race
(double references), but it's a very minor change.
The rest are all small device-specific quirks, as well as a correction
of the new UAC3 support code.
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Merge tag 'sound-4.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"We have a core fix in the compat code for covering a potential race
(double references), but it's a very minor change.
The rest are all small device-specific quirks, as well as a correction
of the new UAC3 support code"
* tag 'sound-4.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: usb-audio: Use Class Specific EP for UAC3 devices.
ALSA: hda/realtek - Clevo P950ER ALC1220 Fixup
ALSA: usb: mixer: volume quirk for CM102-A+/102S+
ALSA: hda: Add Lenovo C50 All in one to the power_save blacklist
ALSA: control: fix a redundant-copy issue
KVM_HINTS_DEDICATED seems to be somewhat confusing:
Guest doesn't really care whether it's the only task running on a host
CPU as long as it's not preempted.
And there are more reasons for Guest to be preempted than host CPU
sharing, for example, with memory overcommit it can get preempted on a
memory access, post copy migration can cause preemption, etc.
Let's call it KVM_HINTS_REALTIME which seems to better
match what guests expect.
Also, the flag most be set on all vCPUs - current guests assume this.
Note so in the documentation.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Pull s390 fixes from Martin Schwidefsky:
- a fix for the vfio ccw translation code
- update an incorrect email address in the MAINTAINERS file
- fix a division by zero oops in the cpum_sf code found by trinity
- two fixes for the error handling of the qdio code
- several spectre related patches to convert all left-over indirect
branches in the kernel to expoline branches
- update defconfigs to avoid warnings due to the netfilter Kconfig
changes
- avoid several compiler warnings in the kexec_file code for s390
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/qdio: don't release memory in qdio_setup_irq()
s390/qdio: fix access to uninitialized qdio_q fields
s390/cpum_sf: ensure sample frequency of perf event attributes is non-zero
s390: use expoline thunks in the BPF JIT
s390: extend expoline to BC instructions
s390: remove indirect branch from do_softirq_own_stack
s390: move spectre sysfs attribute code
s390/kernel: use expoline for indirect branches
s390/ftrace: use expoline for indirect branches
s390/lib: use expoline for indirect branches
s390/crc32-vx: use expoline for indirect branches
s390: move expoline assembler macros to a header
vfio: ccw: fix cleanup if cp_prefetch fails
s390/kexec_file: add declaration of purgatory related globals
s390: update defconfigs
MAINTAINERS: update s390 zcrypt maintainers email address
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Merge tag 'selinux-pr-20180516' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull SELinux fixes from Paul Moore:
"A small pull request to fix a few regressions in the SELinux/SCTP code
with applications that call bind() with AF_UNSPEC/INADDR_ANY.
The individual commit descriptions have more information, but the
commits themselves should be self explanatory"
* tag 'selinux-pr-20180516' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: correctly handle sa_family cases in selinux_sctp_bind_connect()
selinux: fix address family in bind() and connect() to match address/port
selinux: add AF_UNSPEC and INADDR_ANY checks to selinux_socket_bind()
proc_pid_cmdline_read() and environ_read() directly access the target
process' VM to retrieve the command line and environment. If this
process remaps these areas onto a file via mmap(), the requesting
process may experience various issues such as extra delays if the
underlying device is slow to respond.
Let's simply refuse to access file-backed areas in these functions.
For this we add a new FOLL_ANON gup flag that is passed to all calls
to access_remote_vm(). The code already takes care of such failures
(including unmapped areas). Accesses via /proc/pid/mem were not
changed though.
This was assigned CVE-2018-1120.
Note for stable backports: the patch may apply to kernels prior to 4.11
but silently miss one location; it must be checked that no call to
access_remote_vm() keeps zero as the last argument.
Reported-by: Qualys Security Advisory <qsa@qualys.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 539d39eb27 ("bcache: fix wrong return value in bch_debug_init()")
returns the return value of debugfs_create_dir() to bcache_init(). When
CONFIG_DEBUG_FS=n, bch_debug_init() always returns 1 and makes
bcache_init() failedi.
This patch makes bch_debug_init() always returns 0 if CONFIG_DEBUG_FS=n,
so bcache can continue to work for the kernels which don't have debugfs
enanbled.
Changelog:
v4: Add Acked-by from Kent Overstreet.
v3: Use IS_ENABLED(CONFIG_DEBUG_FS) to replace #ifdef DEBUG_FS.
v2: Remove a warning information
v1: Initial version.
Fixes: Commit 539d39eb27 ("bcache: fix wrong return value in bch_debug_init()")
Cc: stable@vger.kernel.org
Signed-off-by: Coly Li <colyli@suse.de>
Reported-by: Massimo B. <massimo.b@gmx.net>
Reported-by: Kai Krakow <kai@kaishome.de>
Tested-by: Kai Krakow <kai@kaishome.de>
Acked-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Similarly to opal_event_shutdown, opal_nvram_write can be called in
the crash path with irqs disabled. Special case the delay to avoid
sleeping in invalid context.
Fixes: 3b8070335f ("powerpc/powernv: Fix OPAL NVRAM driver OPAL_BUSY loops")
Cc: stable@vger.kernel.org # v3.2
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Add I2C/SMBUS Driver entry for STM32 family from ST Microelectronics.
Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
A single fix for a recent regression.
* 'vmwgfx-fixes-4.17' of git://people.freedesktop.org/~thomash/linux:
drm/vmwgfx: Set dmabuf_size when vmw_dmabuf_init is successful
- vc4: Fix memory leak on driver close (Eric)
- dumb-buffers: Prevent overflow in DIV_ROUND_UP() (Dan)
Cc: Haneen Mohammed <hamohammed.sa@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
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Merge tag 'drm-misc-fixes-2018-05-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
- core: Fix regression in dev node offsets (Haneen)
- vc4: Fix memory leak on driver close (Eric)
- dumb-buffers: Prevent overflow in DIV_ROUND_UP() (Dan)
Cc: Haneen Mohammed <hamohammed.sa@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
* tag 'drm-misc-fixes-2018-05-16' of git://anongit.freedesktop.org/drm/drm-misc:
drm/dumb-buffers: Integer overflow in drm_mode_create_ioctl()
drm/vc4: Fix leak of the file_priv that stored the perfmon.
drm: Match sysfs name in link removal to link creation
a field event. This is increasingly important for the histogram trigger
work that is being extended.
While auditing trace events, I found that a couple of the xen events
were used as just marking that a function was called, by creating
a static array of size zero. This can play havoc with the tracing
features if these events are used, because a zero size of a static
array is denoted as a special nul terminated dynamic array (this is
what the trace_marker code uses). But since the xen events have no
size, they are not nul terminated, and unexpected results may occur.
As trace events were never intended on being a marker to denote
that a function was hit or not, especially since function tracing
and kprobes can trivially do the same, the best course of action is
to simply remove these events.
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Merge tag 'trace-v4.17-rc4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
"Some of the ftrace internal events use a zero for a data size of a
field event. This is increasingly important for the histogram trigger
work that is being extended.
While auditing trace events, I found that a couple of the xen events
were used as just marking that a function was called, by creating a
static array of size zero. This can play havoc with the tracing
features if these events are used, because a zero size of a static
array is denoted as a special nul terminated dynamic array (this is
what the trace_marker code uses). But since the xen events have no
size, they are not nul terminated, and unexpected results may occur.
As trace events were never intended on being a marker to denote that a
function was hit or not, especially since function tracing and kprobes
can trivially do the same, the best course of action is to simply
remove these events"
* tag 'trace-v4.17-rc4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing/x86/xen: Remove zero data size trace events trace_xen_mmu_flush_tlb{_all}
vsprintf is incorrect. Instead of adding the read memory barrier
into vsprintf() which will cause a slight degradation to a commonly
used function in the kernel just to solve a very unlikely race
condition that can only happen at boot up, change the code from
using a variable branch to a static_branch. Not only does this solve
the race condition, it actually will improve the performance of
vsprintf() by removing the conditional branch that is only needed
at boot.
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Merge tag 'trace-v4.17-rc5-vsprintf' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull memory barrier for from Steven Rostedt:
"The memory barrier usage in updating the random ptr hash for %p in
vsprintf is incorrect.
Instead of adding the read memory barrier into vsprintf() which will
cause a slight degradation to a commonly used function in the kernel
just to solve a very unlikely race condition that can only happen at
boot up, change the code from using a variable branch to a
static_branch.
Not only does this solve the race condition, it actually will improve
the performance of vsprintf() by removing the conditional branch that
is only needed at boot"
* tag 'trace-v4.17-rc5-vsprintf' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
vsprintf: Replace memory barrier with static_key for random_ptr_key update
stub_probe() calls put_busid_priv() in an error path when device isn't
found in the busid_table. Fix it by making put_busid_priv() safe to be
called with null struct bus_id_priv pointer.
This problem happens when "usbip bind" is run without loading usbip_host
driver and then running modprobe. The first failed bind attempt unbinds
the device from the original driver and when usbip_host is modprobed,
stub_probe() runs and doesn't find the device in its busid table and calls
put_busid_priv(0 with null bus_id_priv pointer.
usbip-host 3-10.2: 3-10.2 is not in match_busid table... skip!
[ 367.359679] =====================================
[ 367.359681] WARNING: bad unlock balance detected!
[ 367.359683] 4.17.0-rc4+ #5 Not tainted
[ 367.359685] -------------------------------------
[ 367.359688] modprobe/2768 is trying to release lock (
[ 367.359689]
==================================================================
[ 367.359696] BUG: KASAN: null-ptr-deref in print_unlock_imbalance_bug+0x99/0x110
[ 367.359699] Read of size 8 at addr 0000000000000058 by task modprobe/2768
[ 367.359705] CPU: 4 PID: 2768 Comm: modprobe Not tainted 4.17.0-rc4+ #5
Fixes: 22076557b0 ("usbip: usbip_host: fix NULL-ptr deref and use-after-free errors") in usb-linus
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is a comment here which says that DIV_ROUND_UP() and that's where
the problem comes from. Say you pick:
args->bpp = UINT_MAX - 7;
args->width = 4;
args->height = 1;
The integer overflow in DIV_ROUND_UP() means "cpp" is UINT_MAX / 8 and
because of how we picked args->width that means cpp < UINT_MAX / 4.
I've fixed it by preventing the integer overflow in DIV_ROUND_UP(). I
removed the check for !cpp because it's not possible after this change.
I also changed all the 0xffffffffU references to U32_MAX.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180516140026.GA19340@mwanda
Reviewing Tobin's patches for getting pointers out early before
entropy has been established, I noticed that there's a lone smp_mb() in
the code. As with most lone memory barriers, this one appears to be
incorrectly used.
We currently basically have this:
get_random_bytes(&ptr_key, sizeof(ptr_key));
/*
* have_filled_random_ptr_key==true is dependent on get_random_bytes().
* ptr_to_id() needs to see have_filled_random_ptr_key==true
* after get_random_bytes() returns.
*/
smp_mb();
WRITE_ONCE(have_filled_random_ptr_key, true);
And later we have:
if (unlikely(!have_filled_random_ptr_key))
return string(buf, end, "(ptrval)", spec);
/* Missing memory barrier here. */
hashval = (unsigned long)siphash_1u64((u64)ptr, &ptr_key);
As the CPU can perform speculative loads, we could have a situation
with the following:
CPU0 CPU1
---- ----
load ptr_key = 0
store ptr_key = random
smp_mb()
store have_filled_random_ptr_key
load have_filled_random_ptr_key = true
BAD BAD BAD! (you're so bad!)
Because nothing prevents CPU1 from loading ptr_key before loading
have_filled_random_ptr_key.
But this race is very unlikely, but we can't keep an incorrect smp_mb() in
place. Instead, replace the have_filled_random_ptr_key with a static_branch
not_filled_random_ptr_key, that is initialized to true and changed to false
when we get enough entropy. If the update happens in early boot, the
static_key is updated immediately, otherwise it will have to wait till
entropy is filled and this happens in an interrupt handler which can't
enable a static_key, as that requires a preemptible context. In that case, a
work_queue is used to enable it, as entropy already took too long to
establish in the first place waiting a little more shouldn't hurt anything.
The benefit of using the static key is that the unlikely branch in
vsprintf() now becomes a nop.
Link: http://lkml.kernel.org/r/20180515100558.21df515e@gandalf.local.home
Cc: stable@vger.kernel.org
Fixes: ad67b74d24 ("printk: hash addresses printed with %p")
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
SOU primary plane prepare_fb hook depends upon dmabuf_size to pin up BO
(and not call a new vmw_dmabuf_init) when a new fb size is same as
current fb. This was changed in a recent commit which is causing
page_flip to fail on VM with low display memory and multi-mon failure
when cycle monitors from secondary display.
Cc: <stable@vger.kernel.org> # 4.14, 4.16
Fixes: 20fb5a635a ("drm/vmwgfx: Unpin the screen object backup buffer when not used")
Signed-off-by: Deepak Rawat <drawat@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Clock driver is mandatory if the machine is selected.
Then don't use 'bool' and 'depends on' commands, but 'def_bool'
with the machine(s).
Fixes: da32d3539f ("clk: stm32: add configuration flags for each of the stm32 drivers")
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
On i.MX6 ULL using PLL3 seems to cause a freeze when setting
the parent to IMX6UL_CLK_PLL3_USB_OTG. This only seems to appear
since commit 6f9575e556 ("clk: imx: Add CLK_IS_CRITICAL flag
for busy divider and busy mux"), probably because the clock is
now forced to be on.
Fixes: 6f9575e55632("clk: imx: Add CLK_IS_CRITICAL flag for busy divider and busy mux")
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Merge tag 'afs-fixes-20180514' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull AFS fixes from David Howells:
"Here's a set of patches that fix a number of bugs in the in-kernel AFS
client, including:
- Fix directory locking to not use individual page locks for
directory reading/scanning but rather to use a semaphore on the
afs_vnode struct as the directory contents must be read in a single
blob and data from different reads must not be mixed as the entire
contents may be shuffled about between reads.
- Fix address list parsing to handle port specifiers correctly.
- Only give up callback records on a server if we actually talked to
that server (we might not be able to access a server).
- Fix some callback handling bugs, including refcounting,
whole-volume callbacks and when callbacks actually get broken in
response to a CB.CallBack op.
- Fix some server/address rotation bugs, including giving up if we
can't probe a server; giving up if a server says it doesn't have a
volume, but there are more servers to try.
- Fix the decoding of fetched statuses to be OpenAFS compatible.
- Fix the handling of server lookups in Cache Manager ops (such as
CB.InitCallBackState3) to use a UUID if possible and to handle no
server being found.
- Fix a bug in server lookup where not all addresses are compared.
- Fix the non-encryption of calls that prevents some servers from
being accessed (this also requires an AF_RXRPC patch that has
already gone in through the net tree).
There's also a patch that adds tracepoints to log Cache Manager ops
that don't find a matching server, either by UUID or by address"
* tag 'afs-fixes-20180514' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
afs: Fix the non-encryption of calls
afs: Fix CB.CallBack handling
afs: Fix whole-volume callback handling
afs: Fix afs_find_server search loop
afs: Fix the handling of an unfound server in CM operations
afs: Add a tracepoint to record callbacks from unlisted servers
afs: Fix the handling of CB.InitCallBackState3 to find the server by UUID
afs: Fix VNOVOL handling in address rotation
afs: Fix AFSFetchStatus decoder to provide OpenAFS compatibility
afs: Fix server rotation's handling of fileserver probe failure
afs: Fix refcounting in callback registration
afs: Fix giving up callbacks on server destruction
afs: Fix address list parsing
afs: Fix directory page locking
Two small driver fixes: aacraid to fix an unknown IU type on task
management functions which causes a firmware fault and vmw_pvscsi to
change a return code to retry the operation instead of causing an
immediate error
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Two small driver fixes: aacraid to fix an unknown IU type on task
management functions which causes a firmware fault and vmw_pvscsi to
change a return code to retry the operation instead of causing an
immediate error"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: aacraid: Correct hba_send to include iu_type
scsi: vmw-pvscsi: return DID_BUS_BUSY for adapter-initated aborts
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Merge tag 'drm-fixes-for-v4.17-rc6-urgent' of git://people.freedesktop.org/~airlied/linux
Pull drm fix from Dave Airlie:
"This fixes the mmap regression reported to me on irc by an i686 kernel
user today, he's tested the fix works, and I've audited all the drm
drivers for the bad mmap usage and since we use the mmap offset as a
lookup in a table we aren't inclined to have anything bad in there"
[ See commit be83bbf806 ("mmap: introduce sane default mmap limits")
for details and the note on why the GPU drivers were expected to be a
special case. - Linus ]
* tag 'drm-fixes-for-v4.17-rc6-urgent' of git://people.freedesktop.org/~airlied/linux:
drm: set FMODE_UNSIGNED_OFFSET for drm files
Thomas Gleixner