In dlm_init_lockres() we access and modify res->tracking and
dlm->tracking_list without holding dlm->track_lock. This can cause list
corruptions and can end up in kernel panic.
Fix this by locking res->tracking and dlm->tracking_list with
dlm->track_lock instead of dlm->spinlock.
Link: http://lkml.kernel.org/r/1529951192-4686-1-git-send-email-ashish.samant@oracle.com
Signed-off-by: Ashish Samant <ashish.samant@oracle.com>
Reviewed-by: Changwei Ge <ge.changwei@h3c.com>
Acked-by: Joseph Qi <jiangqi903@gmail.com>
Acked-by: Jun Piao <piaojun@huawei.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <ge.changwei@h3c.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
do_shrink_slab() returns unsigned long value, and the placing into int
variable cuts high bytes off. Then we compare ret and 0xfffffffe (since
SHRINK_EMPTY is converted to ret type).
Thus a large number of objects returned by do_shrink_slab() may be
interpreted as SHRINK_EMPTY, if low bytes of their value are equal to
0xfffffffe. Fix that by declaration ret as unsigned long in these
functions.
Link: http://lkml.kernel.org/r/153813407177.17544.14888305435570723973.stgit@localhost.localdomain
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Reported-by: Cyrill Gorcunov <gorcunov@openvz.org>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5dd0b16cda ("mm/vmstat: Make NR_TLB_REMOTE_FLUSH_RECEIVED available even
on UP") made the availability of the NR_TLB_REMOTE_FLUSH* counters inside
the kernel unconditional to reduce #ifdef soup, but (either to avoid
showing dummy zero counters to userspace, or because that code was missed)
didn't update the vmstat_array, meaning that all following counters would
be shown with incorrect values.
This only affects kernel builds with
CONFIG_VM_EVENT_COUNTERS=y && CONFIG_DEBUG_TLBFLUSH=y && CONFIG_SMP=n.
Link: http://lkml.kernel.org/r/20181001143138.95119-2-jannh@google.com
Fixes: 5dd0b16cda ("mm/vmstat: Make NR_TLB_REMOTE_FLUSH_RECEIVED available even on UP")
Signed-off-by: Jann Horn <jannh@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Roman Gushchin <guro@fb.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Kemi Wang <kemi.wang@intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7a9cdebdcc ("mm: get rid of vmacache_flush_all() entirely") removed the
VMACACHE_FULL_FLUSHES statistics, but didn't remove the corresponding
entry in vmstat_text. This causes an out-of-bounds access in
vmstat_show().
Luckily this only affects kernels with CONFIG_DEBUG_VM_VMACACHE=y, which
is probably very rare.
Link: http://lkml.kernel.org/r/20181001143138.95119-1-jannh@google.com
Fixes: 7a9cdebdcc ("mm: get rid of vmacache_flush_all() entirely")
Signed-off-by: Jann Horn <jannh@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Roman Gushchin <guro@fb.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Kemi Wang <kemi.wang@intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently, you can use /proc/self/task/*/stack to cause a stack walk on
a task you control while it is running on another CPU. That means that
the stack can change under the stack walker. The stack walker does
have guards against going completely off the rails and into random
kernel memory, but it can interpret random data from your kernel stack
as instruction pointers and stack pointers. This can cause exposure of
kernel stack contents to userspace.
Restrict the ability to inspect kernel stacks of arbitrary tasks to root
in order to prevent a local attacker from exploiting racy stack unwinding
to leak kernel task stack contents. See the added comment for a longer
rationale.
There don't seem to be any users of this userspace API that can't
gracefully bail out if reading from the file fails. Therefore, I believe
that this change is unlikely to break things. In the case that this patch
does end up needing a revert, the next-best solution might be to fake a
single-entry stack based on wchan.
Link: http://lkml.kernel.org/r/20180927153316.200286-1-jannh@google.com
Fixes: 2ec220e27f ("proc: add /proc/*/stack")
Signed-off-by: Jann Horn <jannh@google.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Ken Chen <kenchen@google.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
split_huge_page_to_list() fails on HugeTLB pages. I was experimenting
with moving 32MB contig HugeTLB pages on arm64 (with a debug patch
applied) and hit the following stack trace when the kernel crashed.
[ 3732.462797] Call trace:
[ 3732.462835] split_huge_page_to_list+0x3b0/0x858
[ 3732.462913] migrate_pages+0x728/0xc20
[ 3732.462999] soft_offline_page+0x448/0x8b0
[ 3732.463097] __arm64_sys_madvise+0x724/0x850
[ 3732.463197] el0_svc_handler+0x74/0x110
[ 3732.463297] el0_svc+0x8/0xc
[ 3732.463347] Code: d1000400 f90b0e60 f2fbd5a2 a94982a1 (f9000420)
When unmap_and_move[_huge_page]() fails due to lack of memory, the
splitting should happen only for transparent huge pages not for HugeTLB
pages. PageTransHuge() returns true for both THP and HugeTLB pages.
Hence the conditonal check should test PagesHuge() flag to make sure that
given pages is not a HugeTLB one.
Link: http://lkml.kernel.org/r/1537798495-4996-1-git-send-email-anshuman.khandual@arm.com
Fixes: 94723aafb9 ("mm: unclutter THP migration")
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Zi Yan <zi.yan@cs.rutgers.edu>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
get_user_pages_fast() will return negative value if no pages were pinned,
then be converted to a unsigned, which is compared to zero, giving the
wrong result.
Link: http://lkml.kernel.org/r/20180921095015.26088-1-yuehaibing@huawei.com
Fixes: 09e35a4a1c ("mm/gup_benchmark: handle gup failures")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A transparent huge page is represented by a single entry on an LRU list.
Therefore, we can only make unevictable an entire compound page, not
individual subpages.
If a user tries to mlock() part of a huge page, we want the rest of the
page to be reclaimable.
We handle this by keeping PTE-mapped huge pages on normal LRU lists: the
PMD on border of VM_LOCKED VMA will be split into PTE table.
Introduction of THP migration breaks[1] the rules around mlocking THP
pages. If we had a single PMD mapping of the page in mlocked VMA, the
page will get mlocked, regardless of PTE mappings of the page.
For tmpfs/shmem it's easy to fix by checking PageDoubleMap() in
remove_migration_pmd().
Anon THP pages can only be shared between processes via fork(). Mlocked
page can only be shared if parent mlocked it before forking, otherwise CoW
will be triggered on mlock().
For Anon-THP, we can fix the issue by munlocking the page on removing PTE
migration entry for the page. PTEs for the page will always come after
mlocked PMD: rmap walks VMAs from oldest to newest.
Test-case:
#include <unistd.h>
#include <sys/mman.h>
#include <sys/wait.h>
#include <linux/mempolicy.h>
#include <numaif.h>
int main(void)
{
unsigned long nodemask = 4;
void *addr;
addr = mmap((void *)0x20000000UL, 2UL << 20, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_LOCKED, -1, 0);
if (fork()) {
wait(NULL);
return 0;
}
mlock(addr, 4UL << 10);
mbind(addr, 2UL << 20, MPOL_PREFERRED | MPOL_F_RELATIVE_NODES,
&nodemask, 4, MPOL_MF_MOVE);
return 0;
}
[1] https://lkml.kernel.org/r/CAOMGZ=G52R-30rZvhGxEbkTw7rLLwBGadVYeo--iizcD3upL3A@mail.gmail.com
Link: http://lkml.kernel.org/r/20180917133816.43995-1-kirill.shutemov@linux.intel.com
Fixes: 616b837153 ("mm: thp: enable thp migration in generic path")
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Vegard Nossum <vegard.nossum@oracle.com>
Reviewed-by: Zi Yan <zi.yan@cs.rutgers.edu>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: <stable@vger.kernel.org> [4.14+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ocfs2_duplicate_clusters_by_page() may crash if one of the extent's pages
is dirty. When a page has not been written back, it is still in dirty
state. If ocfs2_duplicate_clusters_by_page() is called against the dirty
page, the crash happens.
To fix this bug, we can just unlock the page and wait until the page until
its not dirty.
The following is the backtrace:
kernel BUG at /root/code/ocfs2/refcounttree.c:2961!
[exception RIP: ocfs2_duplicate_clusters_by_page+822]
__ocfs2_move_extent+0x80/0x450 [ocfs2]
? __ocfs2_claim_clusters+0x130/0x250 [ocfs2]
ocfs2_defrag_extent+0x5b8/0x5e0 [ocfs2]
__ocfs2_move_extents_range+0x2a4/0x470 [ocfs2]
ocfs2_move_extents+0x180/0x3b0 [ocfs2]
? ocfs2_wait_for_recovery+0x13/0x70 [ocfs2]
ocfs2_ioctl_move_extents+0x133/0x2d0 [ocfs2]
ocfs2_ioctl+0x253/0x640 [ocfs2]
do_vfs_ioctl+0x90/0x5f0
SyS_ioctl+0x74/0x80
do_syscall_64+0x74/0x140
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
Once we find the page is dirty, we do not wait until it's clean, rather we
use write_one_page() to write it back
Link: http://lkml.kernel.org/r/20180829074740.9438-1-lchen@suse.com
[lchen@suse.com: update comments]
Link: http://lkml.kernel.org/r/20180830075041.14879-1-lchen@suse.com
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Larry Chen <lchen@suse.com>
Acked-by: Changwei Ge <ge.changwei@h3c.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When fixing an issue with PMD sharing and migration, it was discovered via
code inspection that other callers of huge_pmd_unshare potentially have an
issue with cache and tlb flushing.
Use the routine adjust_range_if_pmd_sharing_possible() to calculate worst
case ranges for mmu notifiers. Ensure that this range is flushed if
huge_pmd_unshare succeeds and unmaps a PUD_SUZE area.
Link: http://lkml.kernel.org/r/20180823205917.16297-3-mike.kravetz@oracle.com
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The page migration code employs try_to_unmap() to try and unmap the source
page. This is accomplished by using rmap_walk to find all vmas where the
page is mapped. This search stops when page mapcount is zero. For shared
PMD huge pages, the page map count is always 1 no matter the number of
mappings. Shared mappings are tracked via the reference count of the PMD
page. Therefore, try_to_unmap stops prematurely and does not completely
unmap all mappings of the source page.
This problem can result is data corruption as writes to the original
source page can happen after contents of the page are copied to the target
page. Hence, data is lost.
This problem was originally seen as DB corruption of shared global areas
after a huge page was soft offlined due to ECC memory errors. DB
developers noticed they could reproduce the issue by (hotplug) offlining
memory used to back huge pages. A simple testcase can reproduce the
problem by creating a shared PMD mapping (note that this must be at least
PUD_SIZE in size and PUD_SIZE aligned (1GB on x86)), and using
migrate_pages() to migrate process pages between nodes while continually
writing to the huge pages being migrated.
To fix, have the try_to_unmap_one routine check for huge PMD sharing by
calling huge_pmd_unshare for hugetlbfs huge pages. If it is a shared
mapping it will be 'unshared' which removes the page table entry and drops
the reference on the PMD page. After this, flush caches and TLB.
mmu notifiers are called before locking page tables, but we can not be
sure of PMD sharing until page tables are locked. Therefore, check for
the possibility of PMD sharing before locking so that notifiers can
prepare for the worst possible case.
Link: http://lkml.kernel.org/r/20180823205917.16297-2-mike.kravetz@oracle.com
[mike.kravetz@oracle.com: make _range_in_vma() a static inline]
Link: http://lkml.kernel.org/r/6063f215-a5c8-2f0c-465a-2c515ddc952d@oracle.com
Fixes: 39dde65c99 ("shared page table for hugetlb page")
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
One important fix:
- Fix a memory leak with AMD IOMMU when SME is active and a VM
has assigned devices. In that case the complete guest memory
will be leaked without this fix.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=VoCg
-----END PGP SIGNATURE-----
Merge tag 'iommu-fixes-v4.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Joerg writes:
"IOMMU Fix for Linux v4.19-rc6
One important fix:
- Fix a memory leak with AMD IOMMU when SME is active and a VM
has assigned devices. In that case the complete guest memory
will be leaked without this fix."
* tag 'iommu-fixes-v4.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/amd: Clear memory encryption mask from physical address
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJbtxXyAAoJEL/70l94x66D52kH/jEbBo/jz9Jx2bnbxYkG1YzO
cIpIRjbRcOKVFNGxjStlJ0PedQBWAfPQl+SywRfqwiSlOOt/yo0lZ5ZewENR2TxO
CLQC/OnV/5SU7BJvbsKgH9tc+Wp9X55wBUEalfcvG/knFlmR+eK/7TwTS+hv/U21
uYKRnGfz5AGfdmB9FyCn0blkPNnFaQ8KB+y+INZTkB+YZzNsybow230FRPs22fjX
HGeJ7gngah50M5gxDW+YPPNXFhs36x2hsyQXBN9TPxLPHoxTsRRoeqx2nl/UvA+e
LXZWg8/UAzXFO/fKVHkJX4jSnCDr2W7HYGNyLPtXFPWhcOelP1h9uHrfuX+fxA4=
=UNUo
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Paolo writes:
"KVM changes for 4.19-rc7
x86 and PPC bugfixes, mostly introduced in 4.19-rc1."
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: nVMX: fix entry with pending interrupt if APICv is enabled
KVM: VMX: hide flexpriority from guest when disabled at the module level
KVM: VMX: check for existence of secondary exec controls before accessing
KVM: PPC: Book3S HV: Avoid crash from THP collapse during radix page fault
KVM: x86: fix L1TF's MMIO GFN calculation
tools/kvm_stat: cut down decimal places in update interval dialog
KVM: nVMX: Fix emulation of VM_ENTRY_LOAD_BNDCFGS
KVM: x86: Do not use kvm_x86_ops->mpx_supported() directly
KVM: nVMX: Do not expose MPX VMX controls when guest MPX disabled
KVM: x86: never trap MSR_KERNEL_GS_BASE
-----BEGIN PGP SIGNATURE-----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=4PHD
-----END PGP SIGNATURE-----
Merge tag '4.19-rc6-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Steve writes:
"SMB3 fixes
four small SMB3 fixes: one for stable, the others to address a more
recent regression"
* tag '4.19-rc6-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb3: fix lease break problem introduced by compounding
cifs: only wake the thread for the very last PDU in a compound
cifs: add a warning if we try to to dequeue a deleted mid
smb2: fix missing files in root share directory listing
Boris Ostrovsky reported a memory leak with device passthrough when SME
is active.
The VFIO driver uses iommu_iova_to_phys() to get the physical address for
an iova. This physical address is later passed into vfio_unmap_unpin() to
unpin the memory. The vfio_unmap_unpin() uses pfn_valid() before unpinning
the memory. The pfn_valid() check was failing because encryption mask was
part of the physical address returned. This resulted in the memory not
being unpinned and therefore leaked after the guest terminates.
The memory encryption mask must be cleared from the physical address in
iommu_iova_to_phys().
Fixes: 2543a786aa ("iommu/amd: Allow the AMD IOMMU to work with memory encryption")
Reported-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: <iommu@lists.linux-foundation.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: kvm@vger.kernel.org
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: <stable@vger.kernel.org> # 4.14+
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
One patch here, fixing a potential host crash introduced (or at least
exacerbated) by a previous fix for corruption relating to radix guest
page faults and THP operations.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iQEcBAABCAAGBQJbtq7FAAoJEJ2a6ncsY3Gf0PAIAJvq2veNJs0HHsonuI592mK0
YMKL7IproGHBnIuVvpaI3o6iERjMtRaolh+G4dlk3xoQ/TXYzTdimT1cwF2jZblL
wQSsit5499UrJdPsFxBc7lc8yXwRR9+N/ooRAQS/TyK6w00Y+Aep7sTQpRdVCb1G
nskLWXBDWtdB6nGAX9dECpRQP+/voxEJkMMrsFM3rYbBkM/rOqu/IXsCoH2u2jGM
6zFDe7Z35VP77UaehK9W4fGHVc+92oD5E2kN56DNIotYaAT7fudPmNQF+g1GsVFc
Mv8AJdXiQIhZFbpRWTS/UTvyb/aq1Ou6Xd5msTYTMG8v+g0M9h8ZSH3FQCX8RMs=
=Fdit
-----END PGP SIGNATURE-----
Merge tag 'kvm-ppc-fixes-4.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into kvm-master
Third set of PPC KVM fixes for 4.19
One patch here, fixing a potential host crash introduced (or at least
exacerbated) by a previous fix for corruption relating to radix guest
page faults and THP operations.
-----BEGIN PGP SIGNATURE-----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=slnZ
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-2018-10-05' of git://anongit.freedesktop.org/drm/drm
Dave writes:
"amdgpu and two core fixes
Two fixes for amdgpu:
one corrects a use of process->mm
one fix for display code race condition that can result in a crash
Two core fixes:
One for a use-after-free in the leasing code
One for a cma/fbdev crash."
* tag 'drm-fixes-2018-10-05' of git://anongit.freedesktop.org/drm/drm:
drm/amdkfd: Fix incorrect use of process->mm
drm/amd/display: Signal hw_done() after waiting for flip_done()
drm/cma-helper: Fix crash in fbdev error path
drm: fix use-after-free read in drm_mode_create_lease_ioctl()
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCW7YOCQAKCRDh3BK/laaZ
PAmGAQC1/3+mkfHXqyDx+zv4f7A348ZULW26EWFWwMwlEljWowD+PlRFBgUu5v5c
194mCApZU7hl6o0u07aijjz6m81e6QE=
=dM89
-----END PGP SIGNATURE-----
Merge tag 'ovl-fixes-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Miklos writes:
"overlayfs fixes for 4.19-rc7
This update fixes a couple of regressions in the stacked file update
added in this cycle, as well as some older bugs uncovered by
syzkaller.
There's also one trivial naming change that touches other parts of
the fs subsystem."
* tag 'ovl-fixes-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: fix format of setxattr debug
ovl: fix access beyond unterminated strings
ovl: make symbol 'ovl_aops' static
vfs: swap names of {do,vfs}_clone_file_range()
ovl: fix freeze protection bypass in ovl_clone_file_range()
ovl: fix freeze protection bypass in ovl_write_iter()
ovl: fix memory leak on unlink of indexed file
Russell writes:
"A couple of small ARM fixes from Stefan and Thomas:
- Adding the io_pgetevents syscall
- Fixing a bounds check in pci_ioremap_io()"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8799/1: mm: fix pci_ioremap_io() offset check
ARM: 8787/1: wire up io_pgetevents syscall
-----BEGIN PGP SIGNATURE-----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=gF5o
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-2018-10-04' of git://anongit.freedesktop.org/drm/drm
Dave writes:
"drm exynos, tda9950 and intel fixes
3 i915 fixes:
compressed error handling zlib fix
compiler warning cleanup
and a minor code cleanup
2 tda9950:
Two fixes for the HDMI CEC
1 exynos:
A fix required for IOMMU interaction."
* tag 'drm-fixes-2018-10-04' of git://anongit.freedesktop.org/drm/drm:
drm/i915: Handle incomplete Z_FINISH for compressed error states
drm/i915: Avoid compiler warning for maybe unused gu_misc_iir
drm/i915: Do not redefine the has_csr parameter.
drm/exynos: Use selected dma_dev default iommu domain instead of a fake one
drm/i2c: tda9950: set MAX_RETRIES for errors only
drm/i2c: tda9950: fix timeout counter check
Accumlated regression and bug fixes for 4.19-rc6, including:
o make iomap correctly mark dirty pages for sub-page block sizes
o fix regression in handling extent-to-btree format conversion errors
o fix torn log wrap detection for new logs
o various corrupt inode detection fixes
o various delalloc state fixes
o cleanup all the missed transaction cancel cases missed from changes merged
in 4.19-rc1
o fix lockdep false positive on transaction allocation
o fix locking and reference counting on buffer log items
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=5ylA
-----END PGP SIGNATURE-----
Merge tag 'xfs-fixes-for-4.19-rc6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Dave writes:
"XFS fixes for 4.19-rc6
Accumlated regression and bug fixes for 4.19-rc6, including:
o make iomap correctly mark dirty pages for sub-page block sizes
o fix regression in handling extent-to-btree format conversion errors
o fix torn log wrap detection for new logs
o various corrupt inode detection fixes
o various delalloc state fixes
o cleanup all the missed transaction cancel cases missed from changes merged
in 4.19-rc1
o fix lockdep false positive on transaction allocation
o fix locking and reference counting on buffer log items"
* tag 'xfs-fixes-for-4.19-rc6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: fix error handling in xfs_bmap_extents_to_btree
iomap: set page dirty after partial delalloc on mkwrite
xfs: remove invalid log recovery first/last cycle check
xfs: validate inode di_forkoff
xfs: skip delalloc COW blocks in xfs_reflink_end_cow
xfs: don't treat unknown di_flags2 as corruption in scrub
xfs: remove duplicated include from alloc.c
xfs: don't bring in extents in xfs_bmap_punch_delalloc_range
xfs: fix transaction leak in xfs_reflink_allocate_cow()
xfs: avoid lockdep false positives in xfs_trans_alloc
xfs: refactor xfs_buf_log_item reference count handling
xfs: clean up xfs_trans_brelse()
xfs: don't unlock invalidated buf on aborted tx commit
xfs: remove last of unnecessary xfs_defer_cancel() callers
xfs: don't crash the vfs on a garbage inline symlink
This tag contains a single patch that managed to get lost in the
shuffle, which explains why it's so late. This single line has been
floating around in various patch sets for months, and fixes our DMA32
region.
-----BEGIN PGP SIGNATURE-----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=QoXG
-----END PGP SIGNATURE-----
Merge tag 'riscv-for-linus-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux
Palmer writes:
"A Single RISC-V Fix for 4.19-rc7
This tag contains a single patch that managed to get lost in the
shuffle, which explains why it's so late. This single line has been
floating around in various patch sets for months, and fixes our DMA32
region."
* tag 'riscv-for-linus-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux:
RISCV: Fix end PFN for low memory
This mm_struct pointer should never be dereferenced. If running in
a user thread, just use current->mm. If running in a kernel worker
use get_task_mm to get a safe reference to the mm_struct.
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
In amdgpu_dm_commit_tail(), wait until flip_done() is signaled before
we signal hw_done().
[Why]
This is to temporarily address a paging error that occurs when a
nonblocking commit contends with another commit, particularly in a
mirrored display configuration where at least 2 CRTCs are updated.
The error occurs in drm_atomic_helper_wait_for_flip_done(), when we
attempt to access the contents of new_crtc_state->commit.
Here's the sequence for a mirrored 2 display setup (irrelevant steps
left out for clarity):
**THREAD 1** | **THREAD 2**
|
Initialize atomic state for flip |
|
Queue worker |
...
| Do work for flip
|
| Signal hw_done() on CRTC 1
| Signal hw_done() on CRTC 2
|
| Wait for flip_done() on CRTC 1
<---- **PREEMPTED BY THREAD 1**
Initialize atomic state for cursor |
update (1) |
|
Do cursor update work on both CRTCs |
|
Clear atomic state (2) |
**DONE** |
...
|
| Wait for flip_done() on CRTC 2
| *ERROR*
|
The issue starts with (1). When the atomic state is initialized, the
current CRTC states are duplicated to be the new_crtc_states, and
referenced to be the old_crtc_states. (The new_crtc_states are to be
filled with update data.)
Some things to note:
* Due to the mirrored configuration, the cursor updates on both CRTCs.
* At this point, the pflip IRQ has already been handled, and flip_done
signaled on all CRTCs. The cursor commit can therefore continue.
* The old_crtc_states used by the cursor update are the **same states**
as the new_crtc_states used by the flip worker.
At (2), the old_crtc_state is freed (*), and the cursor commit
completes. We then context switch back to the flip worker, where we
attempt to access the new_crtc_state->commit object. This is
problematic, as this state has already been freed.
(*) Technically, 'state->crtcs[i].state' is freed, which was made to
reference old_crtc_state in drm_atomic_helper_swap_state()
[How]
By moving hw_done() after wait_for_flip_done(), we're guaranteed that
the new_crtc_state (from the flip worker's perspective) still exists.
This is because any other commit will be blocked, waiting for the
hw_done() signal.
Note that both the i915 and imx drivers have this sequence flipped
already, masking this problem.
Signed-off-by: Shirish S <shirish.s@amd.com>
Signed-off-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Commit b5861e5cf2 introduced a check on
the interrupt-window and NMI-window CPU execution controls in order to
inject an external interrupt vmexit before the first guest instruction
executes. However, when APIC virtualization is enabled the host does not
need a vmexit in order to inject an interrupt at the next interrupt window;
instead, it just places the interrupt vector in RVI and the processor will
inject it as soon as possible. Therefore, on machines with APICv it is
not enough to check the CPU execution controls: the same scenario can also
happen if RVI>vPPR.
Fixes: b5861e5cf2
Reviewed-by: Nikita Leshchenko <nikita.leshchenko@oracle.com>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Liran Alon <liran.alon@oracle.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Format has a typo: it was meant to be "%.*s", not "%*s". But at some point
callers grew nonprintable values as well, so use "%*pE" instead with a
maximized length.
Reported-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Fixes: 3a1e819b4e ("ovl: store file handle of lower inode on copy up")
Cc: <stable@vger.kernel.org> # v4.12
As of commit 8d860bbeed ("kvm: vmx: Basic APIC virtualization controls
have three settings"), KVM will disable VIRTUALIZE_APIC_ACCESSES when
a nested guest writes APIC_BASE MSR and kvm-intel.flexpriority=0,
whereas previously KVM would allow a nested guest to enable
VIRTUALIZE_APIC_ACCESSES so long as it's supported in hardware. That is,
KVM now advertises VIRTUALIZE_APIC_ACCESSES to a guest but doesn't
(always) allow setting it when kvm-intel.flexpriority=0, and may even
initially allow the control and then clear it when the nested guest
writes APIC_BASE MSR, which is decidedly odd even if it doesn't cause
functional issues.
Hide the control completely when the module parameter is cleared.
reported-by: Sean Christopherson <sean.j.christopherson@intel.com>
Fixes: 8d860bbeed ("kvm: vmx: Basic APIC virtualization controls have three settings")
Cc: Jim Mattson <jmattson@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Return early from vmx_set_virtual_apic_mode() if the processor doesn't
support VIRTUALIZE_APIC_ACCESSES or VIRTUALIZE_X2APIC_MODE, both of
which reside in SECONDARY_VM_EXEC_CONTROL. This eliminates warnings
due to VMWRITEs to SECONDARY_VM_EXEC_CONTROL (VMCS field 401e) failing
on processors without secondary exec controls.
Remove the similar check for TPR shadowing as it is incorporated in the
flexpriority_enabled check and the APIC-related code in
vmx_update_msr_bitmap() is further gated by VIRTUALIZE_X2APIC_MODE.
Reported-by: Gerhard Wiesinger <redhat@wiesinger.com>
Fixes: 8d860bbeed ("kvm: vmx: Basic APIC virtualization controls have three settings")
Cc: Jim Mattson <jmattson@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit 71d29f43b6 ("KVM: PPC: Book3S HV: Don't use compound_order to
determine host mapping size", 2018-09-11) added a call to
__find_linux_pte() and a dereference of the returned PTE pointer to the
radix page fault path in the common case where the page is normal
system memory. Previously, __find_linux_pte() was only called for
mappings to physical addresses which don't have a page struct (e.g.
memory-mapped I/O) or where the page struct is marked as reserved
memory.
This exposes us to the possibility that the returned PTE pointer
could be NULL, for example in the case of a concurrent THP collapse
operation. Dereferencing the returned NULL pointer causes a host
crash.
To fix this, we check for NULL, and if it is NULL, we retry the
operation by returning to the guest, with the expectation that it
will generate the same page fault again (unless of course it has
been fixed up by another CPU in the meantime).
Fixes: 71d29f43b6 ("KVM: PPC: Book3S HV: Don't use compound_order to determine host mapping size")
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
, plus a compilation warning fix and a tiny code clean up.
-----BEGIN PGP SIGNATURE-----
iQEcBAABAgAGBQJbtSZlAAoJEPpiX2QO6xPKolQH/iFFZ359UuEzjj+mB7i5seYL
L3c3iT4m7ZIIjcI6Y1kne/EQ7ipRAzpvDBSx8/3GD+4GqgJczeTbHrUqTqFkPwPo
sReoEUwEgMOMdy0suydMwx71iw5PRJ0BUp4YiB38Dx8IG7BGLyYP46jP7wCpkGxs
j9h2Y3M2sUPwqcQBbdLU66cRgWxrPBKkypdv77Sziel4j+8y5gCjtPKAO92KurgJ
uNdHREn0Dx/X0iDUVPpsIPHnBQZWjbf3c/v8Hn+zdzlElfJhpQDdeuFeSG2w9sVr
3nRhnl9ZHj5m7V7nWDTzeCk1+QHBLHLOQfSK+MoKGFnI1jznF9yfWjZHKDile4Y=
=4FHj
-----END PGP SIGNATURE-----
Merge tag 'drm-intel-fixes-2018-10-03' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
There's one fix for our zlib incomlete Z_FINISH on our error state handling,
plus a compilation warning fix and a tiny code clean up.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181003202840.GA23560@intel.com
David writes:
"Networking fixes:
1) Prefix length validation in xfrm layer, from Steffen Klassert.
2) TX status reporting fix in mac80211, from Andrei Otcheretianski.
3) Fix hangs due to TX_DROP in mac80211, from Bob Copeland.
4) Fix DMA error regression in b43, from Larry Finger.
5) Add input validation to xenvif_set_hash_mapping(), from Jan Beulich.
6) SMMU unmapping fix in hns driver, from Yunsheng Lin.
7) Bluetooh crash in unpairing on SMP, from Matias Karhumaa.
8) WoL handling fixes in the phy layer, from Heiner Kallweit.
9) Fix deadlock in bonding, from Mahesh Bandewar.
10) Fill ttl inherit infor in vxlan driver, from Hangbin Liu.
11) Fix TX timeouts during netpoll, from Michael Chan.
12) RXRPC layer fixes from David Howells.
13) Another batch of ndo_poll_controller() removals to deal with
excessive resource consumption during load. From Eric Dumazet.
14) Fix a specific TIPC failure secnario, from LUU Duc Canh.
15) Really disable clocks in r8169 during suspend so that low
power states can actually be reached.
16) Fix SYN backlog lockdep issue in tcp and dccp, from Eric Dumazet.
17) Fix RCU locking in netpoll SKB send, which shows up in bonding,
from Dave Jones.
18) Fix TX stalls in r8169, from Heiner Kallweit.
19) Fix locksup in nfp due to control message storms, from Jakub
Kicinski.
20) Various rmnet bug fixes from Subash Abhinov Kasiviswanathan and
Sean Tranchetti.
21) Fix use after free in ip_cmsg_recv_dstaddr(), from Eric Dumazet."
* gitolite.kernel.org:/pub/scm/linux/kernel/git/davem/net: (122 commits)
ixgbe: check return value of napi_complete_done()
sctp: fix fall-through annotation
r8169: always autoneg on resume
ipv4: fix use-after-free in ip_cmsg_recv_dstaddr()
net: qualcomm: rmnet: Fix incorrect allocation flag in receive path
net: qualcomm: rmnet: Fix incorrect allocation flag in transmit
net: qualcomm: rmnet: Skip processing loopback packets
net: systemport: Fix wake-up interrupt race during resume
rtnl: limit IFLA_NUM_TX_QUEUES and IFLA_NUM_RX_QUEUES to 4096
bonding: fix warning message
inet: make sure to grab rcu_read_lock before using ireq->ireq_opt
nfp: avoid soft lockups under control message storm
declance: Fix continuation with the adapter identification message
net: fec: fix rare tx timeout
r8169: fix network stalls due to missing bit TXCFG_AUTO_FIFO
tun: napi flags belong to tfile
tun: initialize napi_mutex unconditionally
tun: remove unused parameters
bond: take rcu lock in netpoll_send_skb_on_dev
rtnetlink: Fail dump if target netnsid is invalid
...
The NIC driver should only enable interrupts when napi_complete_done()
returns true. This patch adds the check for ixgbe.
Cc: stable@vger.kernel.org # 4.10+
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This fixes update for 4.19-rc7 consists one fix to rseq test to prevent
it from seg-faulting when compiled with -fpie.
-----BEGIN PGP SIGNATURE-----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=Gew9
-----END PGP SIGNATURE-----
Merge tag 'linux-kselftest-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Shuah writes:
"kselftest fixes for 4.19-rc7
This fixes update for 4.19-rc7 consists one fix to rseq test to
prevent it from seg-faulting when compiled with -fpie."
* tag 'linux-kselftest-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
rseq/selftests: fix parametrized test with -fpie
Replace "fallthru" with a proper "fall through" annotation.
This fix is part of the ongoing efforts to enabling
-Wimplicit-fallthrough
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The final call to zlib_deflate(Z_FINISH) may require more output
space to be allocated and so needs to re-invoked. Failure to do so in
the current code leads to incomplete zlib streams (albeit intact due to
the use of Z_SYNC_FLUSH) resulting in the occasional short object
capture.
v2: Check against overrunning our pre-allocated page array
v3: Drop Z_SYNC_FLUSH entirely
Testcase: igt/i915-error-capture.js
Fixes: 0a97015d45 ("drm/i915: Compress GPU objects in error state")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: <stable@vger.kernel.org> # v4.10+
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181003082422.23214-1-chris@chris-wilson.co.uk
(cherry picked from commit 83bc0f5b43)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Jiri writes:
"HID fixes:
- hantick touchpad fix from Anisse Astier
- device ID addition for Ice Lake mobile from Srinivas Pandruvada
- touchscreen resume fix for certain i2c-hid driven devices from Hans
de Goede"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: intel-ish-hid: Enable Ice Lake mobile
HID: i2c-hid: Remove RESEND_REPORT_DESCR quirk and its handling
HID: i2c-hid: disable runtime PM operations on hantick touchpad
Al writes:
"xattrs regression fix from Andreas; sat in -next for quite a while."
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
sysfs: Do not return POSIX ACL xattrs via listxattr
The event subscriptions are added to the subscribed event list while
holding a spinlock, but that lock is subsequently released while still
accessing the subscription object. This makes it possible to unsubscribe
the event --- and freeing the subscription object's memory --- while
the subscription object is simultaneously accessed.
Prevent this by adding a mutex to serialise the event subscription and
unsubscription. This also gives a guarantee to the callback ops that the
add op has returned before the del op is called.
This change also results in making the elems field less special:
subscriptions are only added to the event list once they are fully
initialised.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: stable@vger.kernel.org # for 4.14 and up
Fixes: c3b5b0241f ("V4L/DVB: V4L: Events: Add backend")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
- This patch makes it to reuse default IOMMU domain instead of
allocating a fake IOMMU domain, and allows some design changes
for enhancement of IOMMU framework[1] without breaking Exynos DRM.
[1] https://www.spinics.net/lists/arm-kernel/msg676098.html
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQIcBAABAgAGBQJbsYFzAAoJEFc4NIkMQxK4lxsP/1EbVvEq0BhjYLo6CcGA099B
jFv9PPgcCKw8e0lSZ2Hxs+OsNF8lXD8ylxwzmXOSKPo9EtMGtHs+0dMTJfeZvmqZ
NSM4WkJmqjAFl4fsTZzRzaWbM0++F/AelO6V6wX9jaNb7rOr9AKtA7lDKyFuqlKq
4m36fvyxOm5V0uUgV6yphtSBE02tnjCc+fwlZCDzQ/vsneS163FJTSWZ+JZ1ES34
pSUMaPyIgM09I7wBCzNMYKIqfzkygzpu0DHJsG6HCW86ypDCtOkOMM44Abr1mmfo
d5l9SrreHom17ghBflRJsdsGd7um8nRKqbvgQ2wyd1pCl62RqPK0y5bvXW2UkuQK
CdB4lZP1JeuKjeFTy16R5I0JMTZQMdLVd2eeQZRfm7gKxb4RI5TxO9ddCDVnwQXy
p37ee/wz8Rbq8+5oeXGy0IYXXl0lrAPdTXSTOz/w0T0iNvZkg6XCWcheVvsqowj/
aPy4wpPg/TXRB9294JUNFQYMZmPs7IrzwSLNxKh9LaTxy+TIznhl2AYUXsMfpuz1
vjzyRaBiBC48K7W+z5eelHitgfbXO26AfA3M4PmwZdrvGcvjTxyun9l95rY0cN3/
2LA4nfdbhWDH0FAnInec5K1U63y1oypIHnZjm1nfAh+T4oacSCpGinEXtEYJF6mF
YGdRK5F7oZ8msZwa6AkV
=S0+P
-----END PGP SIGNATURE-----
Merge tag 'exynos-drm-fixes-for-v4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
Use default iommu domain instead of fake one
- This patch makes it to reuse default IOMMU domain instead of
allocating a fake IOMMU domain, and allows some design changes
for enhancement of IOMMU framework[1] without breaking Exynos DRM.
[1] https://www.spinics.net/lists/arm-kernel/msg676098.html
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Inki Dae <inki.dae@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1538360696-23579-1-git-send-email-inki.dae@samsung.com
This affects at least versions 25 and 33, so assume all cards are broken
and just renegotiate by default.
Fixes: 10bc6a6042 ("r8169: fix autoneg issue on resume with RTL8168E")
Signed-off-by: Alex Xu (Hello71) <alex_y_xu@yahoo.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
Caching ip_hdr(skb) before a call to pskb_may_pull() is buggy,
do not do it.
Fixes: 2efd4fca70 ("ip: in cmsg IP(V6)_ORIGDSTADDR call pskb_may_pull")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
-----BEGIN PGP SIGNATURE-----
iQEcBAABAgAGBQJbsmA5AAoJEEg/ir3gV/o+Bg0IAM4qUD878349YufTxlNI3usz
pPyRYLFfh+f3oTjGWxZ4SlAzMsCVnGDWMKFBj33qnJen1YcMxD2DriTIStQfOHkE
EpErxxMa70YFY2VyvD6Gt/Xfw9Q4ZGrp9j4tNnXVBMVT+EDhui/OpHFlpgoLtpLk
A8pxPRkbQNdql4OWOLwVpFJoleB0mJp4+ed+z743z4ectBfY0Iqx6Yyk1TRUzLfB
o/cUV02M33Fi8XjjZ59crPrIc4r0iUcPDcd5+8i2WtOkfbFod9s1Dg4GMNbGpcFn
RPJX9A+XilMPCJNM8YhwcS2JxX8Y2XwUjBDbspx0RHX3HZY22SjuN2i5p1GZnLo=
=pu43
-----END PGP SIGNATURE-----
Merge tag 'mlx5-fixes-2018-10-01' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
Mellanox, mlx5 fixes 2018-10-01
This pull request includes some fixes to mlx5 driver,
Please pull and let me know if there's any problem.
For -stable v4.11:
"6e0a4a23c59a ('net/mlx5: E-Switch, Fix out of bound access when setting vport rate')"
For -stable v4.18:
"98d6627c372a ('net/mlx5e: Set vlan masks for all offloaded TC rules')"
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Ashish Samant