mainline inclusion
from mainline-v5.15-rc1
commit 67821a0c
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4BY3P
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=67821a0cf5c97690d7d00b5afe5137ebe29f60fd

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

This patch removes the redundant param mbx_event_pending.
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.15-rc1
commit c511dfff
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4BY3P
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c511dfff4b655685d7341962a76d9a340150e0ac

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

To improve the readability and maintainability, add hns3_state_init() to
initialize the state, and this new function will be used to add more state
initialization in the future.
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.15-rc1
commit 4c116f85
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4BY3P
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4c116f85ecf8c147450602ed47ee25de60807f45

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

To improve code readability, replace digital numbers of mac speeds
defined by firmware command with macros.
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4BUSF
CVE: NA

--------------------------------
Signed-off-by: NZheng Zucheng <zhengzucheng@huawei.com>
Reviewed-by: NChen Hui <judy.chenhui@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4BMOM
CVE: NA

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

This patch fixes some issues involved with IMA digest db size patches:
- use CONFIG_IMA_DIGEST_LIST to seperate db size check in ima_fs.c
- remove minimum digest db size limit in Kconfig
- change ima_digest_db_size data type from size_t to int, to avoid
  overflow
- change ima_digest_db_size in ima_add_digest_data_entry and
  ima_del_digest_data_entry
- add some debug messages

Fixes: 7c9d18bc ("ima: Add max size for IMA digest database")
Signed-off-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Reviewed-by: Nzhujianwei <zhujianwei7@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.13-rc1
commit f58bd538
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I49LY9
CVE: NA

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

When page_poison detects page corruption it's useful to see who freed a
page recently to have a guess where write-after-free corruption happens.

After this change corruption report has extra page data.
Example report from real corruption (includes only page_pwner part):

    pagealloc: memory corruption
    e00000014cd61d10: 11 00 00 00 00 00 00 00 30 1d d2 ff ff 0f 00 60  ........0......`
    e00000014cd61d20: b0 1d d2 ff ff 0f 00 60 90 fe 1c 00 08 00 00 20  .......`.......
    ...
    CPU: 1 PID: 220402 Comm: cc1plus Not tainted 5.12.0-rc5-00107-g9720c6f59ecf #245
    Hardware name: hp server rx3600, BIOS 04.03 04/08/2008
    ...
    Call Trace:
     [<a000000100015210>] show_stack+0x90/0xc0
     [<a000000101163390>] dump_stack+0x150/0x1c0
     [<a0000001003f1e90>] __kernel_unpoison_pages+0x410/0x440
     [<a0000001003c2460>] get_page_from_freelist+0x1460/0x2ca0
     [<a0000001003c6be0>] __alloc_pages_nodemask+0x3c0/0x660
     [<a0000001003ed690>] alloc_pages_vma+0xb0/0x500
     [<a00000010037deb0>] __handle_mm_fault+0x1230/0x1fe0
     [<a00000010037ef70>] handle_mm_fault+0x310/0x4e0
     [<a00000010005dc70>] ia64_do_page_fault+0x1f0/0xb80
     [<a00000010000ca00>] ia64_leave_kernel+0x0/0x270
    page_owner tracks the page as freed
    page allocated via order 0, migratetype Movable,
      gfp_mask 0x100dca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO), pid 37, ts 8173444098740
     __reset_page_owner+0x40/0x200
     free_pcp_prepare+0x4d0/0x600
     free_unref_page+0x20/0x1c0
     __put_page+0x110/0x1a0
     migrate_pages+0x16d0/0x1dc0
     compact_zone+0xfc0/0x1aa0
     proactive_compact_node+0xd0/0x1e0
     kcompactd+0x550/0x600
     kthread+0x2c0/0x2e0
     call_payload+0x50/0x80

Here we can see that page was freed by page migration but something
managed to write to it afterwards.

[slyfox@gentoo.org: s/dump_page_owner/dump_page/, per Vlastimil]
  Link: https://lkml.kernel.org/r/20210407230800.1086854-1-slyfox@gentoo.org

Link: https://lkml.kernel.org/r/20210404141735.2152984-1-slyfox@gentoo.orgSigned-off-by: NSergei Trofimovich <slyfox@gentoo.org>
Acked-by: NVlastimil Babka <vbabka@suse.cz>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit f58bd538)
Signed-off-by: NYuanzheng Song <songyuanzheng@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.12-rc7
commit 06b1f855
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I49LY9
CVE: NA

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

When page poisoning is enabled, it accesses memory that is marked as
poisoned by KASAN, which leas to false-positive KASAN reports.

Suppress the reports by adding KASAN annotations to unpoison_page()
(poison_page() already has them).

Link: https://lkml.kernel.org/r/2dc799014d31ac13fd97bd906bad33e16376fc67.1617118501.git.andreyknvl@google.comSigned-off-by: NAndrey Konovalov <andreyknvl@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 06b1f855)
Signed-off-by: NYuanzheng Song <songyuanzheng@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.11-rc1
commit 7fb7ab6d
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I49LXW
CVE: NA

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

Page owner of pages used by page owner itself used is missing on arm32
targets.  The reason is dummy_handle and failure_handle is not initialized
correctly.  Buddy allocator is used to initialize these two handles.
However, buddy allocator is not ready when page owner calls it.  This
change fixed that by initializing page owner after buddy initialization.

The working flow before and after this change are:
original logic:
 1. allocated memory for page_ext(using memblock).
 2. invoke the init callback of page_ext_ops like page_owner(using buddy
    allocator).
 3. initialize buddy.

after this change:
 1. allocated memory for page_ext(using memblock).
 2. initialize buddy.
 3. invoke the init callback of page_ext_ops like page_owner(using buddy
    allocator).

with the change, failure/dummy_handle can get its correct value and page
owner output for example has the one for page owner itself:

  Page allocated via order 2, mask 0x6202c0(GFP_USER|__GFP_NOWARN),
  pid 1006, ts 67278156558 ns
  PFN 543776 type Unmovable Block 531 type Unmovable Flags 0x0()
    init_page_owner+0x28/0x2f8
    invoke_init_callbacks_flatmem+0x24/0x34
    start_kernel+0x33c/0x5d8

Link: https://lkml.kernel.org/r/1603104925-5888-1-git-send-email-zhenhuah@codeaurora.orgSigned-off-by: NZhenhua Huang <zhenhuah@codeaurora.org>
Acked-by: NVlastimil Babka <vbabka@suse.cz>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 7fb7ab6d)
Signed-off-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NYuanzheng Song <songyuanzheng@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit cce1689e
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I46N7D
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cce1689eb58d2fe3219da2ecd27cef8e644c4cc6

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

Add support in ethtool for switching EQE/CQE mode.
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit 9f0c6f4b
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I46N7D
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9f0c6f4b7475dd97e1f0eed81dd6ff173cf8c7fc

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

For device whose version is above V3(include V3), the GL can
select EQE or CQE mode, so adds support for it.

In CQE mode, the coalesced timer will restart when the first new
completion occurs, while in EQE mode, the timer will not restart.
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit f3ccfda1
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I46N7D
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f3ccfda1931977b80267ba54070a1aeafa18f6ca

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

In order to support more coalesce parameters through netlink,
add two new parameter kernel_coal and extack for .set_coalesce
and .get_coalesce, then some extra info can return to user with
the netlink API.
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
(fix conflicts: adapt diffs for qede/qlge/stmmac/netdevsim/txgbe)
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit 029ee6b1
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I46N7D
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=029ee6b14356b94120bedb852dcdaefc0a282cf1

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

Currently, there are many drivers who support CQE mode configuration,
some configure it as a fixed when initialized, some provide an
interface to change it by ethtool private flags. In order to make it
more generic, add two new 'ETHTOOL_A_COALESCE_USE_CQE_TX' and
'ETHTOOL_A_COALESCE_USE_CQE_RX' coalesce attributes, then these
parameters can be accessed by ethtool netlink coalesce uAPI.

Also add an new structure kernel_ethtool_coalesce, then the
new parameter can be added into this struct.
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.11-rc1
commit 4ae21993
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I46N7D
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4ae21993f07422ec1cb83e9530f87fa61bff02bd

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

This bitmask represents all existing coalesce parameters.
Signed-off-by: NAntonio Cardace <acardace@redhat.com>
Reviewed-by: NMichal Kubecek <mkubecek@suse.cz>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.14
commit 8c1671e0
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I46N6O
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8c1671e0d13d4a0ba4fb3a0da932bf3736d7ff73

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

Currently, when query PFC configuration by dcbtool, driver will return
PFC enable status based on TC. As all priorities are mapped to TC0 by
default, if TC0 is enabled, then all priorities mapped to TC0 will be
shown as enabled status when query PFC setting, even though some
priorities have never been set.

for example:
$ dcb pfc show dev eth0
pfc-cap 4 macsec-bypass off delay 0
prio-pfc 0:off 1:off 2:off 3:off 4:off 5:off 6:off 7:off
$ dcb pfc set dev eth0 prio-pfc 0:on 1:on 2:on 3:on
$ dcb pfc show dev eth0
pfc-cap 4 macsec-bypass off delay 0
prio-pfc 0:on 1:on 2:on 3:on 4:on 5:on 6:on 7:on

To fix this problem, just returns user's PFC config parameter saved in
driver.

Fixes: cacde272 ("net: hns3: Add hclge_dcb module for the support of DCB feature")
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.14
commit 3462207d
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I46N6O
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3462207d2d684658d97499ca77c00c9ac7c87ea8

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

The GRO configuration is enabled by default after reset. This
is incorrect and should be restored to the user-configured value.
So this restoration is added during reset initialization.
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.14
commit 55649d56
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I46N6O
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=55649d56541bebecfd45ecd14f02944190538a66

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

Currently, the cmd index is obtained in debugfs by comparing file names.
However, this method may cause errors when processing more complex file
names. So, change this method by saving cmd in private data and comparing
it when getting cmd index in debugfs for optimization.

Fixes: 5e69ea7e ("net: hns3: refactor the debugfs process")
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.14
commit 94391fae
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I46N6O
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=94391fae82f71c98ecc7716a32611fcca73c74eb

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

VLAN list should not be added duplicate VLAN node, otherwise it would
cause "add failed" when restore VLAN from VLAN list, so this patch adds
VLAN ID check before adding node into VLAN list.

Fixes: c6075b19 ("net: hns3: Record VF vlan tables")
Signed-off-by: NGuojia Liao <liaoguojia@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.14
commit b15c072a
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I46N6O
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b15c072a9f4a404c09ad589477f4389034742a8b

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

In bond 4, when the link goes down and up repeatedly, the bond may get an
unknown speed, and then this port can not work.

The driver notify netif_carrier_on() before update the link state, when the
bond receive carrier on, will query the speed of the port, if the query
operation happens before updating the link state, will get an unknown
speed. So need to notify netif_carrier_on() after update the link state.

Fixes: 46a3df9f ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Fixes: e2cb1dec ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support")
Signed-off-by: NYonglong Liu <liuyonglong@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.14
commit a96d9330
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I46N6O
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a96d9330b02a3d051ae689bc2c5e7d3a2ba25594

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

After the cmdq registers are cleared, the firmware may take time to
clear out possible left over commands in the cmdq. Driver must release
cmdq memory only after firmware has completed processing of left over
commands.

Fixes: 232d0d55 ("net: hns3: uninitialize command queue while unloading PF driver")
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.14
commit 1a6d2819
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I46N6O
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1a6d281946c330cee2855f6d0cd796616e54601f

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

If a PF is bonded to a virtual machine and the virtual machine exits
unexpectedly, some hardware resource cannot be cleared. In this case,
loading driver may cause exceptions. Therefore, the hardware resource
needs to be cleared when the driver is loaded.

Fixes: 46a3df9f ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit 0bc277cb
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I46N6O
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0bc277cb8234f8e6fcf8842e318e0873dd223565

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

Don't populate the array spec_opcode on the stack but instead it
static const. Makes the object code smaller by 158 bytes:

Before:
   text   data   bss     dec    hex filename
  12271   3976   128   16375   3ff7 .../hisilicon/hns3/hns3pf/hclge_cmd.o

After:
   text   data   bss     dec    hex filename
  12017   4072   128   16217   3f59 .../hisilicon/hns3/hns3pf/hclge_cmd.o

(gcc version 10.3.0)
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

Disable digest list checks in non-root ima namespaces. Digest lists can
be re-enabled when they are namespaced.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

Introduce ima-ns-sig template: "d-ng|n-ng|ns|sig"
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

The build_appraise_rules may be a zero length array depends on the kernel
configuration. This is (vaguely) forbidden in a standard and leads to the
compiler optimisation where the address of the build_appraise_rules is the
same as the default_appraise_rules. That leads to the unexpected flow in
add_rules() where condition:
if (entries != build_appraise_rules)
is false for entries equal to default_appraise_rules.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

Set ML template based on the ima_template string. It can be defined by
the user through kcmd_for_children ima securityfs entry. Acceptable
values are the same as for the ima_template kernel boot parameter.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

Add dummy boot aggregate entry to the ima measurement list, for every
new ima namespace, when the first process is born into that namespace.

There is at most one TPM chip in the system and one measurement list
associated to one of its PCRs. IMA namespace IDs can be re-used after
namespace is destroyed. The per namespace boot aggregate entry marks
the moment of the ima namespace creation. It is useful when host's
root parses the global measurement list to find entries for destroyed
containers. If the ima namespace ID is reused, the user will know, that
the given entry belongs to a different container.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

If configured, load the x509 certificate when the first process is
born into the new ima namespace. User can set the path to the
certificate by writing to the x509_for_children entry in the ima
securityfs. The certificate may be appraised in the parent ima namespace,
in that case it may need to be signed with the parent ns' key. Appraisal
of the key in the newly created namespace is disabled as for the original
ima.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

Add key domain tag to the search criteria in digsig module. If the
domain tag is not set for the keys from the given keyring, it is set to
NULL and the behaviour is unchanged.

The key domain tag is added to the ima appraisal keys loaded to the
system ima keyring.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

Add key domain to the ima namespace. This will allow to bind the
appraisal keys with the namespace and store all appraisal keys in the
ima system keyring.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

Add KEY_ALLOC_DOMAIN_* flags so that the key domain tag can be
specified on the key creation. This is done to separate the
key domain setting from the key type.

If applied to the keyring, it will set the requested domain tag for
every key added to that keyring.

IMA uses the existing key_type_asymmetric for appraisal, but also has
to specify the key domain to bind appraisal key with the ima namespace.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

Add domain tag to the key_match_data. If set, check domain tag in the
default match function and asymmetric keys match functions.

This will allow to use the key domain tag in the search criteria for
the iterative search, not only for the direct lookup that is based on
the index key.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

Add keyring_search_tag() version of keyring_search(), that allows to
specify the key domain tag.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

If subject based rule is added to the policy before the user namespace
uid mapping is defined, ID has to be recalculated.

It can happen if the new user namespace is created alongside the new
ima namespace. The default policy rules are loaded when the first
process is born into the new ima namespace. In that case, user has no
chance to define the mapping. It can also happen for the custom policy
rules loaded from within the new ima namespace, before the mapping is
created.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

Add function that checks if the UID map is defined. It will be used by
ima to check if ID remapping in subject-based rules is necessary.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

Parse per ima namespace policy file. The path is passed as for the root
ima namespace through the ima securityfs 'policy' entry.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

Add ima securityfs entries to configure per ima namespace:
- path to the x509 certificate
- ima kernel boot parameters

The x509 certificate will be parsed and loaded when the first process is
born into the new ima namespace, paths are not validated when written.

Kernel boot parameters are pre-parsed and applied when the first process
is born into the
new namespace.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

It's possible that the user first unshares the ima namespace and then
creates a new user namespace using clone3(). In that case the owning
user namespace is the newly created one, because it is associated with
the first process in the new ima namespace.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

The violations are now tracked per namespace.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

Add "others" permissions to the namespaced ima securityfs entries. It
is necessary so that the root in the user namespace that is the parent
of the given ima namespace has access to the ima related data.

Loosened DAC restrictrions are compensated by an extra check for
SYS_ADMIN capabilities in the ima code. The access is given
only to the namespaced data, e.g. root user in the new ima namespace
will see measurement list entries collected for that namespace and not
for the other existing namespaces. The only exception is made for the
admin in the initial user namespace, who has access to all the data.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

To detect ToMToU violations reader counter of the given inode is
checked. This is not enough, because the reader may exist in a
different ima namespace. Per inode reader counter tracks readers in all
ima namespaces, whereas the per namespace counter is necessary to avoid
false positives.

Add a new reader counter to the integrity inode cache entry.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>