Ramaxel inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4ZR0O
CVE: NA

----------------------------------

There are some issues of the driver that cannot be fixed now.
The driver is not good enough for the LTS quality requirements
of openEuler，so remove it.
Signed-off-by: NYanling Song <songyl@ramaxel.com>
Reviewed-by: NYang Gan <yanggan@ramaxel.com>
Acked-by: NXie Xiuqi <xiexiuqi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

Ramaxel inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4ZR0O
CVE: NA

------------------------------------

There are some issues of the driver that cannot be fixed now.
The driver is not good enough for the LTS quality requirements of
openEuler，so remove it.
Signed-off-by: NYun Xu <xuyun@ramaxel.com>
Signed-off-by: NYanling Song <songyl@ramaxel.com>
Reviewed-by: NYun Xu <xuyun@ramaxel.com>
Acked-by: NXie Xiuqi <xiexiuqi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.17-rc5
commit cc8f7fe1
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4Z2IA
CVE: CVE-2022-0494

--------------------------------

Add __GFP_ZERO flag for alloc_page in function bio_copy_kern to initialize
the buffer of a bio.
Signed-off-by: NHaimin Zhang <tcs.kernel@gmail.com>
Reviewed-by: NChaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220216084038.15635-1-tcs.kernel@gmail.comSigned-off-by: NJens Axboe <axboe@kernel.dk>

Conflict: commit ce288e05 ("block: remove BLK_BOUNCE_ISA support")
is not backported.
Signed-off-by: NYu Kuai <yukuai3@huawei.com>
Reviewed-by: NJason Yan <yanaijie@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.16-rc1
commit 59f09ae8
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4Z2Z9
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=59f09ae8fac4a990070fc6bdc889d0e0118664ea

-------------------------------

This trivial function is called ~90,000 times on 256 cpus hosts,
when reading /proc/net/netstat. And this number keeps inflating.

Inlining it saves many cycles.
Signed-off-by: NEric Dumazet <edumazet@google.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NCao Wangbao <caowangbao@huawei.com>
Reviewed-by: NWu Changye <wuchangye@huawei.com>
Reviewed-by: NWei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline
commit ebe48d36
category: bugfix
bugzilla: 186409, https://gitee.com/openeuler/kernel/issues/I4YXSX
CVE: CVE-2022-0886

--------------------------------

The maximum message size that can be send is bigger than
the  maximum site that skb_page_frag_refill can allocate.
So it is possible to write beyond the allocated buffer.

Fix this by doing a fallback to COW in that case.

v2:

Avoid get get_order() costs as suggested by Linus Torvalds.

Fixes: cac2661c ("esp4: Avoid skb_cow_data whenever possible")
Fixes: 03e2a30f ("esp6: Avoid skb_cow_data whenever possible")
Reported-by: Nvalis <sec@valis.email>
Signed-off-by: NSteffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: NXu Jia <xujia39@huawei.com>
Reviewed-by: NWei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: NXiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.15-rc1
commit 723783d0
category: bugfix
bugzilla: 186409, https://gitee.com/openeuler/kernel/issues/I4YXSX
CVE: CVE-2022-0886

--------------------------------

Both SKB_FRAG_PAGE_ORDER are defined to the same value in
net/core/sock.c and drivers/vhost/net.c.

Move the SKB_FRAG_PAGE_ORDER definition to net/core/sock.h,
as both net/core/sock.c and drivers/vhost/net.c include it,
and it seems a reasonable file to put the macro.
Signed-off-by: NYunsheng Lin <linyunsheng@huawei.com>
Acked-by: NJason Wang <jasowang@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NXu Jia <xujia39@huawei.com>
Reviewed-by: NWei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: NXiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

euleros inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4YW86

--------------------------------

When building with defconfig on arm32, we got a compile error:
./include/linux/page-flags-layout.h:95:2: error: #error "Not enough bits in page flags"
   95 | #error "Not enough bits in page flags"
      |  ^~~~~

Limit PG_reserve_pgflag_0 and PG_reserve_pgflag_1 to compile only on
X86_64 and ARM64 to resolve this issue.

Fixes: afdf2a6c ("kabi: Add reserved page and gfp flags for future extension")
Signed-off-by: Neillon <yezhenyu2@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: bugfix
bugzilla: 46904, https://gitee.com/openeuler/kernel/issues/I4YXOA

--------------------------------

When building with defconfig on arm32, we got a compile error:
./include/linux/page-flags-layout.h:95:2: error: #error "Not enough bits in page flags"
   95 | #error "Not enough bits in page flags"
      |  ^~~~~

Limit PG_pool to compile only on X86_64 and ARM64 to resolve this issue.
Signed-off-by: NLiu Shixin <liushixin2@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.17-rc8
commit 0c4bcfde
category: bugfix
bugzilla: 186448, https://gitee.com/openeuler/kernel/issues/I4YS7O
CVE: CVE-2022-1011

--------------------------------

Because create a new user_pages in fuse_args, to fix kabi change.

Signed-off-by: Zhang Wensheng zhangwensheng5@huawei.com
Reviewed-by: NHou Tao <houtao1@huawei.com>
Reviewed-by: NXiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.17-rc8
commit 0c4bcfde
category: bugfix
bugzilla: 186448, https://gitee.com/openeuler/kernel/issues/I4YS7O
CVE: CVE-2022-1011

--------------------------------

In FOPEN_DIRECT_IO mode, fuse_file_write_iter() calls
fuse_direct_write_iter(), which normally calls fuse_direct_io(), which then
imports the write buffer with fuse_get_user_pages(), which uses
iov_iter_get_pages() to grab references to userspace pages instead of
actually copying memory.

On the filesystem device side, these pages can then either be read to
userspace (via fuse_dev_read()), or splice()d over into a pipe using
fuse_dev_splice_read() as pipe buffers with &nosteal_pipe_buf_ops.

This is wrong because after fuse_dev_do_read() unlocks the FUSE request,
the userspace filesystem can mark the request as completed, causing write()
to return. At that point, the userspace filesystem should no longer have
access to the pipe buffer.

Fix by copying pages coming from the user address space to new pipe
buffers.
Reported-by: NJann Horn <jannh@google.com>
Fixes: c3021629 ("fuse: support splice() reading from fuse device")
Cc: <stable@vger.kernel.org>
Signed-off-by: NMiklos Szeredi <mszeredi@redhat.com>
Signed-off-by: NZhang Wensheng <zhangwensheng5@huawei.com>
Reviewed-by: NHou Tao <houtao1@huawei.com>
Reviewed-by: NXiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.17-rc1
commit 722d9484
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4YD3S
CVE: CVE-2022-0185

--------------------------------

The "PAGE_SIZE - 2 - size" calculation in legacy_parse_param() is an
unsigned type so a large value of "size" results in a high positive
value instead of a negative value as expected.  Fix this by getting rid
of the subtraction.
Signed-off-by: NJamie Hill-Daniel <jamie@hill-daniel.co.uk>
Signed-off-by: NWilliam Liu <willsroot@protonmail.com>
Tested-by: NSalvatore Bonaccorso <carnil@debian.org>
Tested-by: NThadeu Lima de Souza Cascardo <cascardo@canonical.com>
Acked-by: NDan Carpenter <dan.carpenter@oracle.com>
Acked-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: NLuo Meng <luomeng12@huawei.com>
Reviewed-by: NZhang Yi <yi.zhang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.17-rc5
commit e0caaf75
category: bugfix
bugzilla: 186205 https://gitee.com/openeuler/kernel/issues/I4YQRW
CVE: CVE-2022-24448

--------------------------------

Commit ac795161 (NFSv4: Handle case where the lookup of a directory
fails) [1], part of Linux since 5.17-rc2, introduced a regression, where
a symbolic link on an NFS mount to a directory on another NFS does not
resolve(?) the first time it is accessed:
Reported-by: NPaul Menzel <pmenzel@molgen.mpg.de>
Fixes: ac795161 ("NFSv4: Handle case where the lookup of a directory fails")
Signed-off-by: NTrond Myklebust <trond.myklebust@hammerspace.com>
Tested-by: NDonald Buczek <buczek@molgen.mpg.de>
Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: NChenXiaoSong <chenxiaosong2@huawei.com>
Reviewed-by: NZhang Yi <yi.zhang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: bugfix
bugzilla: 186389, https://gitee.com/openeuler/kernel/issues/I4Y43S
CVE: NA

--------------------------------

blk_mq_realloc_hw_ctxs() will free the 'queue_hw_ctx'(e.g. undate
submit_queues through configfs for null_blk), while it might still be
used from other context(e.g. switch elevator to none):

t1					t2
elevator_switch
 blk_mq_unquiesce_queue
  blk_mq_run_hw_queues
   queue_for_each_hw_ctx
    // assembly code for hctx = (q)->queue_hw_ctx[i]
    mov    0x48(%rbp),%rdx -> read old queue_hw_ctx

					__blk_mq_update_nr_hw_queues
					 blk_mq_realloc_hw_ctxs
					  hctxs = q->queue_hw_ctx
					  q->queue_hw_ctx = new_hctxs
					  kfree(hctxs)
    movslq %ebx,%rax
    mov    (%rdx,%rax,8),%rdi ->uaf

Sicne the queue is freezed in __blk_mq_update_nr_hw_queues(), fix the
problem by protecting 'queue_hw_ctx' through rcu where it can be accessed
without grabbing 'q_usage_counter'.
Signed-off-by: NYu Kuai <yukuai3@huawei.com>
Reviewed-by: NMing Lei <ming.lei@redhat.com>
Signed-off-by: NZhang Wensheng <zhangwensheng5@huawei.com>
Reviewed-by: NJason Yan <yanaijie@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: bugfix
bugzilla: 186352, https://gitee.com/openeuler/kernel/issues/I4YADX
CVE: NA

--------------------------------

In case of BLK_MQ_F_BLOCKING, per-hctx srcu is used to protect dispatch
critical area. But the current process is not aware when memory of srcu
allocation failed in blk_mq_alloc_hctx, which will leads to illegal
address BUG. Add return value validation to avoid this problem.
Signed-off-by: NLaibin Qiu <qiulaibin@huawei.com>
Reviewed-by: NHou Tao <houtao1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: bugfix
bugzilla: 46904 https://gitee.com/openeuler/kernel/issues/I4Y0XO

--------------------------------

Patch ("hugetlb: address ref count racing in prep_compound_gigantic_page") add
a check of ref count in prep_compound_gigantic_page. We will call this function
in dynamic hugetlb feature too, so we should initialize subpages before calling
prep_compound_gigantic_page to satisfy the change.
Further, the input of prep_compound_gigantic_page should be a group of pages
rather than compound page, so clear the properties related to compound page.
Signed-off-by: NLiu Shixin <liushixin2@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: bugfix
bugzilla: 46904 https://gitee.com/openeuler/kernel/issues/I4Y0XO

--------------------------------

Patch ("mm: hugetlb: fix a race between freeing and dissolving the page") add
PageHugeFreed to check whether a page is freed in hugetlb.
Patch ("hugetlb: convert PageHugeFreed to HPageFreed flag") convert it to
HPageFreed. We need to clear it when alloc hugepage from hugetlb to and set it
when free hugepage back to hugetlb.
Signed-off-by: NLiu Shixin <liushixin2@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: bugfix
bugzilla: 46904 https://gitee.com/openeuler/kernel/issues/I4Y0XO

--------------------------------

We do not support dynamic combination of 1G hugepages dynamicly as this can
result in a significant performance loss. We suggest to configure the number of
hugepages immediately after creating a dynamic hugetlb pool rather than modify
them dynamicly while some processes are runing.
Signed-off-by: NLiu Shixin <liushixin2@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: bugfix
bugzilla: 46904 https://gitee.com/openeuler/kernel/issues/I4Y0XO

--------------------------------

Do not release the lock after merging all pages, otherwise some other process
may allocate the pages, and then some pages can't be put back to hugetlb.
Signed-off-by: NLiu Shixin <liushixin2@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: bugfix
bugzilla: 46904 https://gitee.com/openeuler/kernel/issues/I4Y0XO

--------------------------------

When all processes in the memory cgroup are finished, some memory may still be
occupied such as file cache. Use mem_cgroup_force_empty to reclaim these pages
that charged in the memory cgroup before merging all pages.
Signed-off-by: NLiu Shixin <liushixin2@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: bugfix
bugzilla: 46904 https://gitee.com/openeuler/kernel/issues/I4Y0XO

--------------------------------

Use check_new_page to check the page to be allocated.
Signed-off-by: NLiu Shixin <liushixin2@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: bugfix
bugzilla: 46904 https://gitee.com/openeuler/kernel/issues/I4Y0XO

--------------------------------

For 1G huge pages, the struct page of each subpages may be discontinuous, but
pfn must be continuous, so it's better to traverse subpages using pfn rathan
than struct page.
Signed-off-by: NLiu Shixin <liushixin2@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: bugfix
bugzilla: 46904 https://gitee.com/openeuler/kernel/issues/I4Y0XO

--------------------------------

Referring to alloc_buddy_huge_page function, replace prep_compound_page
with prep_new_page which is more appropriate because it's the opposite of
free_pages_prepare.
And initialize page->mapping for huge pages as they are initialized in
free_huge_page too.
Signed-off-by: NLiu Shixin <liushixin2@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: bugfix
bugzilla: 46904 https://gitee.com/openeuler/kernel/issues/I4Y0XO

--------------------------------

The hugepages may still remain PG_uptodate flags when freed. When splitting
hugepage to pages, the flag is not clear. This causes the page to be allocated
with PG_uptodate flags and user may read incorrect datas.

In order to solve this problem and similar problems, add free_pages_prepares()
to clear page when splitting pages to small pool.
Signed-off-by: NLiu Shixin <liushixin2@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

Phytium inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I41AUQ
CVE: NA

-------------------------------------------------

Fix the issue that interrupts are concentrated in one cpu
for Phytium S2500 server.
Signed-off-by: NMao HongBo <maohongbo@phytium.com.cn>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: NHanjun Guo <guohanjun@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I3BNT6
CVE: NA

-----------------------------------------------

We can get a crash when disconnecting the iSCSI session,
the call trace like this:

  [ffff00002a00fb70] kfree at ffff00000830e224
  [ffff00002a00fba0] ses_intf_remove at ffff000001f200e4
  [ffff00002a00fbd0] device_del at ffff0000086b6a98
  [ffff00002a00fc50] device_unregister at ffff0000086b6d58
  [ffff00002a00fc70] __scsi_remove_device at ffff00000870608c
  [ffff00002a00fca0] scsi_remove_device at ffff000008706134
  [ffff00002a00fcc0] __scsi_remove_target at ffff0000087062e4
  [ffff00002a00fd10] scsi_remove_target at ffff0000087064c0
  [ffff00002a00fd70] __iscsi_unbind_session at ffff000001c872c4
  [ffff00002a00fdb0] process_one_work at ffff00000810f35c
  [ffff00002a00fe00] worker_thread at ffff00000810f648
  [ffff00002a00fe70] kthread at ffff000008116e98

In ses_intf_add, components count could be 0, and kcalloc 0 size scomp,
but not saved in edev->component[i].scratch

In this situation, edev->component[0].scratch is an invalid pointer,
when kfree it in ses_intf_remove_enclosure, a crash like above would happen
The call trace also could be other random cases when kfree cannot catch
the invalid pointer

We should not use edev->component[] array when the components count is 0
We also need check index when use edev->component[] array in
ses_enclosure_data_process

Another fix option is report error and do not attach in ses_intf_add if we
meet a zero component enclosure
Tested-by: NZeng Zhicong <timmyzeng@163.com>
Signed-off-by: NDing Hui <dinghui@sangfor.com.cn>
Reviewed-by: NJason Yan <yanaijie@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: NCheng Jian <cj.chengjian@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: NJason Yan <yanaijie@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.11-rc1
commit c11faf32
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4Y3CE?from=project-issue
CVE: NA

--------------------------------

In metacopy case, we should use ovl_inode_realdata() instead of
ovl_inode_real() to get real inode which has data, so that
we can get correct information of extentes in ->fiemap operation.
Signed-off-by: NChengguang Xu <cgxu519@mykernel.net>
Reviewed-by: NAmir Goldstein <amir73il@gmail.com>
Signed-off-by: NMiklos Szeredi <mszeredi@redhat.com>
Signed-off-by: NZheng Liang <zhengliang6@huawei.com>
Reviewed-by: NZhang Yi <yi.zhang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.14-rc2
commit d08c84e0
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4Y3D0

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d08c84e01afa7a7eee6badab25d5420fa847f783

----------------------------

In fedora rawhide the PTHREAD_STACK_MIN define may end up expanded to a
sysconf() call, and that will return 'long int', breaking the build:

    45 fedora:rawhide                : FAIL gcc version 11.1.1 20210623 (Red Hat 11.1.1-6) (GCC)
      builtin-sched.c: In function 'create_tasks':
      /git/perf-5.14.0-rc1/tools/include/linux/kernel.h:43:24: error: comparison of distinct pointer types lacks a cast [-Werror]
         43 |         (void) (&_max1 == &_max2);              \
            |                        ^~
      builtin-sched.c:673:34: note: in expansion of macro 'max'
        673 |                         (size_t) max(16 * 1024, PTHREAD_STACK_MIN));
            |                                  ^~~
      cc1: all warnings being treated as errors

  $ grep __sysconf /usr/include/*/*.h
  /usr/include/bits/pthread_stack_min-dynamic.h:extern long int __sysconf (int __name) __THROW;
  /usr/include/bits/pthread_stack_min-dynamic.h:#   define PTHREAD_STACK_MIN __sysconf (__SC_THREAD_STACK_MIN_VALUE)
  /usr/include/bits/time.h:extern long int __sysconf (int);
  /usr/include/bits/time.h:# define CLK_TCK ((__clock_t) __sysconf (2))	/* 2 is _SC_CLK_TCK */
  $

So cast it to int to cope with that.
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: NZou Wei <zou_wei@huawei.com>
Reviewed-by: NYang Jihong <yangjihong1@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

virt inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4VZPC
CVE: NA

--------------------------------

Commit 63042c58 ("KVM: arm64: Add interface to support vCPU
preempted check") introduced paravirt spinlock operations, as pv_lock_ops
was exported via EXPORT_SYMBOL(), while the pv_ops structure containing
the pv lock operations is exported via EXPORT_SYMBOL_GPL().

Change that by using EXPORT_SYMBOL(pv_ops) for arm/arm64, as with the x86
architecture changes, the following:
https://lore.kernel.org/all/20181029150116.25372-1-jgross@suse.com/T/#u

Fixes: 63042c58 ("KVM: arm64: Add interface to support vCPU preempted
check")
Signed-off-by: Nyezengruan <yezengruan@huawei.com>
Reviewed-by: NKeqian Zhu <zhukeqian1@huawei.com>
Acked-by: NXie Xiuqi <xiexiuqi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4XHBM
CVE: NA

-------------

The check for control character shouldn't be added when import a
binary digest list.
Signed-off-by: Nshenxiangwei <shenxiangwei1@huawei.com>
Reviewed-by: NLu Huaxin <luhuaxin1@huawei.com>
Reviewed-by: NRoberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

driver inclusion
category: bugfix
bugzilla: 4472 https://gitee.com/openeuler/kernel/issues/I4O2ZZ

-----------------------------------------------------------------------

When rx_buff is greater than 2, the driver will alloc for more than 1
page of memory for network rx, but the __GFP_COMP gfp flag is not set,
resulting in the following call trace:

CPU: 3 PID: 494041 Comm: ping Kdump: loaded Tainted: G        W  OE     4.19.90-2106.3.0.0095.oe1.x86_64 #1
Hardware name: Huawei Technologies Co., Ltd. RH2288H V3/BC11HGSA0, BIOS 5.15 05/21/2019
RIP: 0010:copy_page_to_iter+0x154/0x310
Code: 31 b8 00 10 00 00 f7 c6 00 80 00 00 74 07 0f b6 49 51 48 d3 e0 48 39 c2 0f 86 ed fe ff ff 48 c7 c7 30
RSP: 0018:ffffbd6907d03bd8 EFLAGS: 00010286
RAX: 0000000000000024 RBX: ffffe0ffee5b3000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff9edbbfcd6858 RDI: ffff9edbbfcd6858
RBP: 0000000000000001 R08: 000000000001574a R09: 0000000000000004
R10: 000000000000004e R11: 0000000000000001 R12: ffffbd6907d03ed0
R13: 0000000000002100 R14: 0000000000000030 R15: 0000000000000000
FS:  00007f9d37244dc0(0000) GS:ffff9edbbfcc0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe0e715f80 CR3: 000000203c018005 CR4: 00000000001606e0
Call Trace:
 skb_copy_datagram_iter+0x16c/0x2a0
 raw_recvmsg+0xd0/0x1f0
 inet_recvmsg+0x5b/0xd0
 ____sys_recvmsg+0x95/0x160
 ? import_iovec+0x37/0xd0
 ? copy_msghdr_from_user+0x5c/0x90
 ___sys_recvmsg+0x8c/0xd0
 ? __audit_syscall_exit+0x228/0x290
 ? kretprobe_trampoline+0x25/0x50
 ? __sys_recvmsg+0x5b/0xa0
 __sys_recvmsg+0x5b/0xa0
 do_syscall_64+0x5f/0x240
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Use 'dev_alloc_pages' instead of calling ’alloc_pages_node‘ directly.
Signed-off-by: NChiqijun <chiqijun@huawei.com>
Reviewed-by: NWangxiaoyun <cloud.wangxiaoyun@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

driver inclusion
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I4XF98
CVE: NA

-----------------------------------------------------------------------

The hinic driver currently generates a NULL pointer dereference
when performing the hinicadm tool command during device probe.
This is because the hinicadm process accesses the NULL hwif
pointer in the hwdev which have not been allocated in probe.

Fix this by checking the initialization state of device before
accessing it.
Signed-off-by: NChiqijun <chiqijun@huawei.com>
Reviewed-by: NWangxiaoyun <cloud.wangxiaoyun@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

driver inclusion
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I4WWH4
CVE: NA

-----------------------------------------------------------------------

When hinic_remove is executed concurrently, chip_node is double freed.
Signed-off-by: NChiqijun <chiqijun@huawei.com>
Reviewed-by: NWangxiaoyun <cloud.wangxiaoyun@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

Ramaxel inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4UA67
CVE: NA

----------------------------------------------

Fix:
1.Remove UNF_ORIGIN_HOTTAG_MASK and UNF_HOTTAG_FLAG
2.Update some output string
3.Remove spinlock protect in free_parent_sq() because there is
  spinlock protect in caller function free_parent_queue_info()
Signed-off-by: NYanling Song <songyl@ramaxel.com>
Reviewed-by: NYun Xu <xuyun@ramaxel.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline-inclusion
from mainline-v5.14-rc4
commit 68a74dca
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4V7IK
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=68a74dcae6737c27b524b680e070fe41f0cad43a

-------------------------------------------------

Because log recovery depends on strictly ordered start records as
well as strictly ordered commit records.

This is a zero day bug in the way XFS writes pipelined transactions
to the journal which is exposed by fixing the zero day bug that
prevents the CIL from pipelining checkpoints. This re-introduces
explicit concurrent commits back into the on-disk journal and hence
out of order start records.

The XFS journal commit code has never ordered start records and we
have relied on strict commit record ordering for correct recovery
ordering of concurrently written transactions. Unfortunately, root
cause analysis uncovered the fact that log recovery uses the LSN of
the start record for transaction commit processing. Hence, whilst
the commits are processed in strict order by recovery, the LSNs
associated with the commits can be out of order and so recovery may
stamp incorrect LSNs into objects and/or misorder intents in the AIL
for later processing. This can result in log recovery failures
and/or on disk corruption, sometimes silent.

Because this is a long standing log recovery issue, we can't just
fix log recovery and call it good. This still leaves older kernels
susceptible to recovery failures and corruption when replaying a log
from a kernel that pipelines checkpoints. There is also the issue
that in-memory ordering for AIL pushing and data integrity
operations are based on checkpoint start LSNs, and if the start LSN
is incorrect in the journal, it is also incorrect in memory.

Hence there's really only one choice for fixing this zero-day bug:
we need to strictly order checkpoint start records in ascending
sequence order in the log, the same way we already strictly order
commit records.
Signed-off-by: NDave Chinner <dchinner@redhat.com>
Reviewed-by: NDarrick J. Wong <djwong@kernel.org>
Signed-off-by: NDarrick J. Wong <djwong@kernel.org>
Signed-off-by: NLihong Kou <koulihong@huawei.com>
Reviewed-by: Nguoxuenan <guoxuenan@huawei.com>
Reviewed-by: NZhang Yi <yi.zhang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline-inclusion
from mainline-v5.14-rc4
commit caa80090
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4V7IK
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=caa80090d17c89d0caca1dcb4c8a9cdef5335e71

-------------------------------------------------

Now that we have a mechanism to guarantee that the callbacks
attached to an iclog are owned by the context that attaches them
until they drop their reference to the iclog via
xlog_state_release_iclog(), we can attach callbacks to the iclog at
any time we have an active reference to the iclog.

xlog_state_get_iclog_space() always guarantees that the commit
record will fit in the iclog it returns, so we can move this IO
callback setting to xlog_cil_set_ctx_write_state(), record the
commit iclog in the context and remove the need for the commit iclog
to be returned by xlog_write() altogether.

This, in turn, allows us to move the wakeup for ordered commit
record writes up into xlog_cil_set_ctx_write_state(), too, because
we have been guaranteed that this commit record will be physically
located in the iclog before any waiting commit record at a higher
sequence number will be granted iclog space.

This further cleans up the post commit record write processing in
the CIL push code, especially as xlog_state_release_iclog() will now
clean up the context when shutdown errors occur.
Signed-off-by: NDave Chinner <dchinner@redhat.com>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NDarrick J. Wong <djwong@kernel.org>
Signed-off-by: NDarrick J. Wong <djwong@kernel.org>
Signed-off-by: NLihong Kou <koulihong@huawei.com>
Reviewed-by: Nguoxuenan <guoxuenan@huawei.com>
Reviewed-by: NZhang Yi <yi.zhang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline-inclusion
from mainline-v5.14-rc4
commit bf034bc8
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4V7IK
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bf034bc827807ac15affa051e6a94b03f93b1a03

-------------------------------------------------

So we can use it for start record ordering as well as commit record
ordering in future.
Signed-off-by: NDave Chinner <dchinner@redhat.com>
Reviewed-by: NDarrick J. Wong <djwong@kernel.org>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NDarrick J. Wong <djwong@kernel.org>
Signed-off-by: NLihong Kou <koulihong@huawei.com>
Reviewed-by: Nguoxuenan <guoxuenan@huawei.com>
Reviewed-by: NZhang Yi <yi.zhang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline-inclusion
from mainline-v5.14-rc4
commit c45aba40
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4V7IK
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c45aba40cf5b2988c0bebee8c9b846c88aa651eb

-------------------------------------------------

Pass the CIL context to xlog_write() rather than a pointer to a LSN
variable. Only the CIL checkpoint calls to xlog_write() need to know
about the start LSN of the writes, so rework xlog_write to directly
write the LSNs into the CIL context structure.

This removes the commit_lsn variable from xlog_cil_push_work(), so
now we only have to issue the commit record ordering wakeup from
there.
Signed-off-by: NDave Chinner <dchinner@redhat.com>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NDarrick J. Wong <djwong@kernel.org>
Signed-off-by: NDarrick J. Wong <djwong@kernel.org>
Signed-off-by: NLihong Kou <koulihong@huawei.com>
Reviewed-by: Nguoxuenan <guoxuenan@huawei.com>
Reviewed-by: NZhang Yi <yi.zhang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline-inclusion
from mainline-v5.10-rc5
commit a5336d6b
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4V7IK
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a5336d6bb2d02d0e9d4d3c8be04b80b8b68d56c8

-------------------------------------------------

In commit 27c14b5d we started tracking the last inode seen during an
inode walk to avoid infinite loops if a corrupt inobt record happens to
have a lower ir_startino than the record preceeding it.  Unfortunately,
the assertion trips over the case where there are completely empty inobt
records (which can happen quite easily on 64k page filesystems) because
we advance the tracking cursor without actually putting the empty record
into the processing buffer.  Fix the assert to allow for this case.

Reported-by: zlang@redhat.com
Fixes: 27c14b5d ("xfs: ensure inobt record walks always make forward progress")
Signed-off-by: NDarrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: NZorro Lang <zlang@redhat.com>
Reviewed-by: NDave Chinner <dchinner@redhat.com>
Reviewed-by: Nguoxuenan <guoxuenan@huawei.com>
Reviewed-by: NZhang Yi <yi.zhang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline-inclusion
from mainline-v5.14-rc4
commit 2ce82b72
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4V7IK
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2ce82b722de980deef809438603b7e95156d3818

-------------------------------------------------

It is only used by the CIL checkpoints, and is the counterpart to
start record formatting and writing that is already local to
xfs_log_cil.c.
Signed-off-by: NDave Chinner <dchinner@redhat.com>
Reviewed-by: NDarrick J. Wong <djwong@kernel.org>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NDarrick J. Wong <djwong@kernel.org>
Signed-off-by: NLihong Kou <koulihong@huawei.com>
Reviewed-by: Nguoxuenan <guoxuenan@huawei.com>
Reviewed-by: NZhang Yi <yi.zhang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline-inclusion
from mainline-v5.14-rc4
commit 2562c322
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4V7IK
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2562c322404d81ee5fa82f3cf601a2e27393ab57

-------------------------------------------------

I'm seeing assert failures from xlog_space_left() after a shutdown
has begun that look like:

XFS (dm-0): log I/O error -5
XFS (dm-0): xfs_do_force_shutdown(0x2) called from line 1338 of file fs/xfs/xfs_log.c. Return address = xlog_ioend_work+0x64/0xc0
XFS (dm-0): Log I/O Error Detected.
XFS (dm-0): Shutting down filesystem. Please unmount the filesystem and rectify the problem(s)
XFS (dm-0): xlog_space_left: head behind tail
XFS (dm-0):   tail_cycle = 6, tail_bytes = 2706944
XFS (dm-0):   GH   cycle = 6, GH   bytes = 1633867
XFS: Assertion failed: 0, file: fs/xfs/xfs_log.c, line: 1310
------------[ cut here ]------------
Call Trace:
 xlog_space_left+0xc3/0x110
 xlog_grant_push_threshold+0x3f/0xf0
 xlog_grant_push_ail+0x12/0x40
 xfs_log_reserve+0xd2/0x270
 ? __might_sleep+0x4b/0x80
 xfs_trans_reserve+0x18b/0x260
.....

There are two things here. Firstly, after a shutdown, the log head
and tail can be out of whack as things abort and release (or don't
release) resources, so checking them for sanity doesn't make much
sense. Secondly, xfs_log_reserve() can race with shutdown and so it
can still fail like this even though it has already checked for a
log shutdown before calling xlog_grant_push_ail().

So, before ASSERT failing in xlog_space_left(), make sure we haven't
already shut down....
Signed-off-by: NDave Chinner <dchinner@redhat.com>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NDarrick J. Wong <djwong@kernel.org>
Signed-off-by: NDarrick J. Wong <djwong@kernel.org>
Signed-off-by: NLihong Kou <koulihong@huawei.com>
Reviewed-by: Nguoxuenan <guoxuenan@huawei.com>
Reviewed-by: NZhang Yi <yi.zhang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>