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  1. 28 Dec, 2013 3 commits
    • Pablo Neira Ayuso's avatar
      netfilter: nf_tables: fix wrong datatype in nft_validate_data_load() · 2ee0d3c8
      Pablo Neira Ayuso authored 
      This patch fixes dictionary mappings, eg.

 add rule ip filter input meta dnat set tcp dport map { 22 => 1.1.1.1, 23 => 2.2.2.2 }

The kernel was returning -EINVAL in nft_validate_data_load() since
the type of the set element data that is passed was the real userspace
datatype instead of NFT_DATA_VALUE.
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
      2ee0d3c8
    • Pablo Neira Ayuso's avatar
      netfilter: nf_tables: fix oops when updating table with user chains · d2012975
      Pablo Neira Ayuso authored 
      This patch fixes a crash while trying to deactivate a table that
contains user chains. You can reproduce it via:

% nft add table table1
% nft add chain table1 chain1
% nft-table-upd ip table1 dormant

[  253.021026] BUG: unable to handle kernel NULL pointer dereference at 0000000000000030
[  253.021114] IP: [<ffffffff8134cebd>] nf_register_hook+0x35/0x6f
[  253.021167] PGD 30fa5067 PUD 30fa2067 PMD 0
[  253.021208] Oops: 0000 [#1] SMP
[...]
[  253.023305] Call Trace:
[  253.023331]  [<ffffffffa0885020>] nf_tables_newtable+0x11c/0x258 [nf_tables]
[  253.023385]  [<ffffffffa0878592>] nfnetlink_rcv_msg+0x1f4/0x226 [nfnetlink]
[  253.023438]  [<ffffffffa0878418>] ? nfnetlink_rcv_msg+0x7a/0x226 [nfnetlink]
[  253.023491]  [<ffffffffa087839e>] ? nfnetlink_bind+0x45/0x45 [nfnetlink]
[  253.023542]  [<ffffffff8134b47e>] netlink_rcv_skb+0x3c/0x88
[  253.023586]  [<ffffffffa0878973>] nfnetlink_rcv+0x3af/0x3e4 [nfnetlink]
[  253.023638]  [<ffffffff813fb0d4>] ? _raw_read_unlock+0x22/0x34
[  253.023683]  [<ffffffff8134af17>] netlink_unicast+0xe2/0x161
[  253.023727]  [<ffffffff8134b29a>] netlink_sendmsg+0x304/0x332
[  253.023773]  [<ffffffff8130d250>] __sock_sendmsg_nosec+0x25/0x27
[  253.023820]  [<ffffffff8130fb93>] sock_sendmsg+0x5a/0x7b
[  253.023861]  [<ffffffff8130d5d5>] ? copy_from_user+0x2a/0x2c
[  253.023905]  [<ffffffff8131066f>] ? move_addr_to_kernel+0x35/0x60
[  253.023952]  [<ffffffff813107b3>] SYSC_sendto+0x119/0x15c
[  253.023995]  [<ffffffff81401107>] ? sysret_check+0x1b/0x56
[  253.024039]  [<ffffffff8108dc30>] ? trace_hardirqs_on_caller+0x140/0x1db
[  253.024090]  [<ffffffff8120164e>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[  253.024141]  [<ffffffff81310caf>] SyS_sendto+0x9/0xb
[  253.026219]  [<ffffffff814010e2>] system_call_fastpath+0x16/0x1b
Reported-by: default avatarAlex Wei <alex.kern.mentor@gmail.com>
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
      d2012975
    • Pablo Neira Ayuso's avatar
      netfilter: nf_tables: fix dumping with large number of sets · e38195bf
      Pablo Neira Ayuso authored 
      If not table name is specified, the dumping of the existing sets
may be incomplete with a sufficiently large number of sets and
tables. This patch fixes missing reset of the cursors after
finding the location of the last object that has been included
in the previous multi-part message.
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
      e38195bf
  3. 27 Dec, 2013 2 commits
  5. 20 Dec, 2013 2 commits
    • Helmut Schaa's avatar
      netfilter: nf_ct_timestamp: Fix BUG_ON after netns deletion · 443d20fd
      Helmut Schaa authored 
      When having nf_conntrack_timestamp enabled deleting a netns
can lead to the following BUG being triggered:

[63836.660000] Kernel bug detected[#1]:
[63836.660000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.10.18 #14
[63836.660000] task: 802d9420 ti: 802d2000 task.ti: 802d2000
[63836.660000] $ 0   : 00000000 00000000 00000000 00000000
[63836.660000] $ 4   : 00000001 00000004 00000020 00000020
[63836.660000] $ 8   : 00000000 80064910 00000000 00000000
[63836.660000] $12   : 0bff0002 00000001 00000000 0a0a0abe
[63836.660000] $16   : 802e70a0 85f29d80 00000000 00000004
[63836.660000] $20   : 85fb62a0 00000002 802d3bc0 85fb62a0
[63836.660000] $24   : 00000000 87138110
[63836.660000] $28   : 802d2000 802d3b40 00000014 871327cc
[63836.660000] Hi    : 000005ff
[63836.660000] Lo    : f2edd000
[63836.660000] epc   : 87138794 __nf_ct_ext_add_length+0xe8/0x1ec [nf_conntrack]
[63836.660000]     Not tainted
[63836.660000] ra    : 871327cc nf_conntrack_in+0x31c/0x7b8 [nf_conntrack]
[63836.660000] Status: 1100d403 KERNEL EXL IE
[63836.660000] Cause : 00800034
[63836.660000] PrId  : 0001974c (MIPS 74Kc)
[63836.660000] Modules linked in: ath9k ath9k_common pppoe ppp_async iptable_nat ath9k_hw ath pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv4 mac80211 ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_quota xt_policy xt_pkttype xt_owner xt_nat xt_multiport xt_mark xh
[63836.660000] Process swapper (pid: 0, threadinfo=802d2000, task=802d9420, tls=00000000)
[63836.660000] Stack : 802e70a0 871323d4 00000005 87080234 802e70a0 86d2a840 00000000 00000000
[63836.660000] Call Trace:
[63836.660000] [<87138794>] __nf_ct_ext_add_length+0xe8/0x1ec [nf_conntrack]
[63836.660000] [<871327cc>] nf_conntrack_in+0x31c/0x7b8 [nf_conntrack]
[63836.660000] [<801ff63c>] nf_iterate+0x90/0xec
[63836.660000] [<801ff730>] nf_hook_slow+0x98/0x164
[63836.660000] [<80205968>] ip_rcv+0x3e8/0x40c
[63836.660000] [<801d9754>] __netif_receive_skb_core+0x624/0x6a4
[63836.660000] [<801da124>] process_backlog+0xa4/0x16c
[63836.660000] [<801d9bb4>] net_rx_action+0x10c/0x1e0
[63836.660000] [<8007c5a4>] __do_softirq+0xd0/0x1bc
[63836.660000] [<8007c730>] do_softirq+0x48/0x68
[63836.660000] [<8007c964>] irq_exit+0x54/0x70
[63836.660000] [<80060830>] ret_from_irq+0x0/0x4
[63836.660000] [<8006a9f8>] r4k_wait_irqoff+0x18/0x1c
[63836.660000] [<8009cfb8>] cpu_startup_entry+0xa4/0x104
[63836.660000] [<802eb918>] start_kernel+0x394/0x3ac
[63836.660000]
[63836.660000]
Code: 00821021  8c420000  2c440001 <00040336> 90440011  92350010  90560010  2485ffff  02a5a821
[63837.040000] ---[ end trace ebf660c3ce3b55e7 ]---
[63837.050000] Kernel panic - not syncing: Fatal exception in interrupt
[63837.050000] Rebooting in 3 seconds..

Fix this by not unregistering the conntrack extension in the per-netns
cleanup code.

This bug was introduced in (73f4001a netfilter: nf_ct_tstamp: move
initialization out of pernet_operations).
Signed-off-by: default avatarHelmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
      443d20fd
    • Daniel Borkmann's avatar
      netfilter: nft_exthdr: call ipv6_find_hdr() with explicitly initialized offset · 540436c8
      Daniel Borkmann authored 
      In nft's nft_exthdr_eval() routine we process IPv6 extension header
through invoking ipv6_find_hdr(), but we call it with an uninitialized
offset variable that contains some stack value. In ipv6_find_hdr()
we then test if the value of offset != 0 and call skb_header_pointer()
on that offset in order to map struct ipv6hdr into it. Fix it up by
initializing offset to 0 as it was probably intended to be.

Fixes: 96518518 ("netfilter: add nftables")
Signed-off-by: default avatarDaniel Borkmann <dborkman@redhat.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
      540436c8
  7. 17 Dec, 2013 19 commits
  9. 15 Dec, 2013 10 commits
    • Linus Torvalds's avatar
      Linux 3.13-rc4 · 319e2e3f
      Linus Torvalds authored
      319e2e3f
    • Matias Bjorling's avatar
      null_blk: mem garbage on NUMA systems during init · 57053d8c
      Matias Bjorling authored 
      For NUMA systems, initializing the blk-mq layer and using per node hctx.
We initialize submit queues to 1, while blk-mq nr_hw_queues is
initialized to the number of NUMA nodes.

This makes the null_init_hctx function overwrite memory outside of what
it allocated.  In my case it lead to writing garbage into struct
request_queue's mq_map.
Signed-off-by: default avatarMatias Bjorling <m@bjorling.me>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      57053d8c
    • Sergey Senozhatsky's avatar
      radeon_pm: fix oops in hwmon_attributes_visible() and radeon_hwmon_show_temp_thresh() · e4158f1b
      Sergey Senozhatsky authored 
      Since commit ec39f64b ("drm/radeon/dpm: Convert to use
devm_hwmon_register_with_groups") radeon_hwmon_init() is using
hwmon_device_register_with_groups(), which sets `rdev' as a device
private driver_data, while hwmon_attributes_visible() and
radeon_hwmon_show_temp_thresh() are still waiting for `drm_device'.

Fix them by using dev_get_drvdata(), in order to avoid this oops:

  BUG: unable to handle kernel paging request at 0000000000001e28
  IP: [<ffffffffa02ae8b4>] hwmon_attributes_visible+0x18/0x3d [radeon]
  PGD 15057e067 PUD 151a8e067 PMD 0
  Oops: 0000 [#1] PREEMPT SMP
  Call Trace:
    internal_create_group+0x114/0x1d9
    sysfs_create_group+0xe/0x10
    sysfs_create_groups+0x22/0x5f
    device_add+0x34f/0x501
    device_register+0x15/0x18
    hwmon_device_register_with_groups+0xb5/0xed
    radeon_hwmon_init+0x56/0x7c [radeon]
    radeon_pm_init+0x134/0x7e5 [radeon]
    radeon_modeset_init+0x75f/0x8ed [radeon]
    radeon_driver_load_kms+0xc6/0x187 [radeon]
    drm_dev_register+0xf9/0x1b4 [drm]
    drm_get_pci_dev+0x98/0x129 [drm]
    radeon_pci_probe+0xa3/0xac [radeon]
    pci_device_probe+0x6e/0xcf
    driver_probe_device+0x98/0x1c4
    __driver_attach+0x5c/0x7e
    bus_for_each_dev+0x7b/0x85
    driver_attach+0x19/0x1b
    bus_add_driver+0x104/0x1ce
    driver_register+0x89/0xc5
    __pci_register_driver+0x58/0x5b
    drm_pci_init+0x86/0xea [drm]
    radeon_init+0x97/0x1000 [radeon]
    do_one_initcall+0x7f/0x117
    load_module+0x1583/0x1bb4
    SyS_init_module+0xa0/0xaf
Signed-off-by: default avatarSergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Alexander Deucher <Alexander.Deucher@amd.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      e4158f1b
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 4a251dd2
      Linus Torvalds authored 
      Pull networking fixes from David Miller:

 1) Revert CHECKSUM_COMPLETE optimization in pskb_trim_rcsum(), I can't
    figure out why it breaks things.

 2) Fix comparison in netfilter ipset's hash_netnet4_data_equal(), it
    was basically doing "x == x", from Dave Jones.

 3) Freescale FEC driver was DMA mapping the wrong number of bytes, from
    Sebastian Siewior.

 4) Blackhole and prohibit routes in ipv6 were not doing the right thing
    because their ->input and ->output methods were not being assigned
    correctly.  Now they behave properly like their ipv4 counterparts.
    From Kamala R.

 5) Several drivers advertise the NETIF_F_FRAGLIST capability, but
    really do not support this feature and will send garbage packets if
    fed fraglist SKBs.  From Eric Dumazet.

 6) Fix long standing user triggerable BUG_ON over loopback in RDS
    protocol stack, from Venkat Venkatsubra.

 7) Several not so common code paths can potentially try to invoke
    packet scheduler actions that might be NULL without checking.  Shore
    things up by either 1) defining a method as mandatory and erroring
    on registration if that method is NULL 2) defininig a method as
    optional and the registration function hooks up a default
    implementation when NULL is seen.  From Jamal Hadi Salim.

 8) Fix fragment detection in xen-natback driver, from Paul Durrant.

 9) Kill dangling enter_memory_pressure method in cg_proto ops, from
    Eric W Biederman.

10) SKBs that traverse namespaces should have their local_df cleared,
    from Hannes Frederic Sowa.

11) IOCB file position is not being updated by macvtap_aio_read() and
    tun_chr_aio_read().  From Zhi Yong Wu.

12) Don't free virtio_net netdev before releasing all of the NAPI
    instances.  From Andrey Vagin.

13) Procfs entry leak in xt_hashlimit, from Sergey Popovich.

14) IPv6 routes that are no cached routes should not count against the
    garbage collection limits.  We had this almost right, but were
    missing handling addrconf generated routes properly.  From Hannes
    Frederic Sowa.

15) fib{4,6}_rule_suppress() have to consider potentially seeing NULL
    route info when they are called, from Stefan Tomanek.

16) TUN and MACVTAP have had truncated packet signalling for some time,
    fix from Jason Wang.

17) Fix use after frrr in __udp4_lib_rcv(), from Eric Dumazet.

18) xen-netback does not interpret the NAPI budget properly for TX work,
    fix from Paul Durrant.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (132 commits)
  igb: Fix for issue where values could be too high for udelay function.
  i40e: fix null dereference
  xen-netback: fix gso_prefix check
  net: make neigh_priv_len in struct net_device 16bit instead of 8bit
  drivers: net: cpsw: fix for cpsw crash when build as modules
  xen-netback: napi: don't prematurely request a tx event
  xen-netback: napi: fix abuse of budget
  sch_tbf: use do_div() for 64-bit divide
  udp: ipv4: must add synchronization in udp_sk_rx_dst_set()
  net:fec: remove duplicate lines in comment about errata ERR006358
  Revert "8390 : Replace ei_debug with msg_enable/NETIF_MSG_* feature"
  8390 : Replace ei_debug with msg_enable/NETIF_MSG_* feature
  xen-netback: make sure skb linear area covers checksum field
  net: smc91x: Fix device tree based configuration so it's usable
  udp: ipv4: fix potential use after free in udp_v4_early_demux()
  macvtap: signal truncated packets
  tun: unbreak truncated packet signalling
  net: sched: htb: fix the calculation of quantum
  net: sched: tbf: fix the calculation of max_size
  micrel: add support for KSZ8041RNLI
  ...
      4a251dd2
    • Linus Torvalds's avatar
      Merge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 908bfda7
      Linus Torvalds authored 
      Pull x86 fixes from Peter Anvin:
 "This is a pretty small batch:

  The biggest single change is to stop using EFI time services on 32-bit
  platforms.  This matches our current behavior on 64-bit platforms as
  we already had ruled them out there as being too unreliable.  Turns
  out that affects 32-bit platforms, too.

  One NULL pointer fix for SGI UV.

  Two minor build fixes, one of which only affects icc and the other
  which affects icc and future versions or nonstandard default settings
  of gcc"

* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, efi: Don't use (U)EFI time services on 32 bit
  x86, build, icc: Remove uninitialized_var() from compiler-intel.h
  x86/UV: Fix NULL pointer dereference in uv_flush_tlb_others() if the 'nobau' boot option is used
  x86, build: Pass in additional -mno-mmx, -mno-sse options
      908bfda7
    • Linus Torvalds's avatar
      Merge tag 'pci-v3.13-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci · 9199c4ca
      Linus Torvalds authored 
      Pull PCI updates from Bjorn Helgaas:
 "PCI device hotplug
    - Move device_del() from pci_stop_dev() to pci_destroy_dev() (Rafael
      Wysocki)

  Host bridge drivers
    - Update maintainers for DesignWare, i.MX6, Armada, R-Car (Bjorn
      Helgaas)
    - mvebu: Return 'unsupported' for Interrupt Line and Interrupt Pin
      (Jason Gunthorpe)

  Miscellaneous
    - Avoid unnecessary CPU switch when calling .probe() (Alexander
      Duyck)
    - Revert "workqueue: allow work_on_cpu() to be called recursively"
      (Bjorn Helgaas)
    - Disable Bus Master only on kexec reboot (Khalid Aziz)
    - Omit PCI ID macro strings to shorten quirk names for LTO (Michal
      Marek)"

* tag 'pci-v3.13-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  MAINTAINERS: Add DesignWare, i.MX6, Armada, R-Car PCI host maintainers
  PCI: Disable Bus Master only on kexec reboot
  PCI: mvebu: Return 'unsupported' for Interrupt Line and Interrupt Pin
  PCI: Omit PCI ID macro strings to shorten quirk names
  PCI: Move device_del() from pci_stop_dev() to pci_destroy_dev()
  Revert "workqueue: allow work_on_cpu() to be called recursively"
  PCI: Avoid unnecessary CPU switch when calling driver .probe() method
      9199c4ca
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security · b5745c59
      Linus Torvalds authored 
      Pull SELinux fixes from James Morris.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  selinux: process labeled IPsec TCP SYN-ACK packets properly in selinux_ip_postroute()
  selinux: look for IPsec labels on both inbound and outbound packets
  selinux: handle TCP SYN-ACK packets correctly in selinux_ip_postroute()
  selinux: handle TCP SYN-ACK packets correctly in selinux_ip_output()
  selinux: fix possible memory leak
      b5745c59
    • Linus Torvalds's avatar
      Revert "selinux: consider filesystem subtype in policies" · 29b1deb2
      Linus Torvalds authored 
      This reverts commit 102aefdd.

Tom London reports that it causes sync() to hang on Fedora rawhide:

  https://bugzilla.redhat.com/show_bug.cgi?id=1033965

and Josh Boyer bisected it down to this commit.  Reverting the commit in
the rawhide kernel fixes the problem.

Eric Paris root-caused it to incorrect subtype matching in that commit
breaking fuse, and has a tentative patch, but by now we're better off
retrying this in 3.14 rather than playing with it any more.
Reported-by: default avatarTom London <selinux@gmail.com>
Bisected-by: default avatarJosh Boyer <jwboyer@fedoraproject.org>
Acked-by: default avatarEric Paris <eparis@redhat.com>
Cc: James Morris <jmorris@namei.org>
Cc: Anand Avati <avati@redhat.com>
Cc: Paul Moore <paul@paul-moore.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      29b1deb2
    • Carolyn Wyborny's avatar
      igb: Fix for issue where values could be too high for udelay function. · df29df92
      Carolyn Wyborny authored 
      This patch changes the igb_phy_has_link function to check the value of the
parameter before deciding to use udelay or mdelay in order to be sure that
the value is not too high for udelay function.

CC: stable kernel <stable@vger.kernel.org> # 3.9+
Signed-off-by: default avatarSunil K Pandey <sunil.k.pandey@intel.com>
Signed-off-by: default avatarKevin B Smith <kevin.b.smith@intel.com>
Signed-off-by: default avatarCarolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: default avatarAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      df29df92
    • Jesse Brandeburg's avatar
      i40e: fix null dereference · 3c325ced
      Jesse Brandeburg authored 
      If the vsi->tx_rings structure is NULL we don't want to panic.

Change-Id: Ic694f043701738c434e8ebe0caf0673f4410dc10
Signed-off-by: default avatarJesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: default avatarKavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      3c325ced
  11. 14 Dec, 2013 3 commits
  13. 13 Dec, 2013 1 commit
    • Linus Torvalds's avatar
      Merge tag 'dm-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm · 93e1585e
      Linus Torvalds authored 
      Pull device mapper fixes from Mike Snitzer:
 "A set of device-mapper fixes for 3.13.

  A fix for possible memory corruption during DM table load, fix a
  possible leak of snapshot space in case of a crash, fix a possible
  deadlock due to a shared workqueue in the delay target, fix to
  initialize read-only module parameters that are used to export metrics
  for dm stats and dm bufio.

  Quite a few stable fixes were identified for both the thin-
  provisioning and caching targets as a result of increased regression
  testing using the device-mapper-test-suite (dmts).  The most notable
  of these are the reference counting fixes for the space map btree that
  is used by the dm-array interface -- without these the dm-cache
  metadata will leak, resulting in dm-cache devices running out of
  metadata blocks.  Also, some important fixes related to the
  thin-provisioning target's transition to read-only mode on error"

* tag 'dm-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm array: fix a reference counting bug in shadow_ablock
  dm space map: disallow decrementing a reference count below zero
  dm stats: initialize read-only module parameter
  dm bufio: initialize read-only module parameters
  dm cache: actually resize cache
  dm cache: update Documentation for invalidate_cblocks's range syntax
  dm cache policy mq: fix promotions to occur as expected
  dm thin: allow pool in read-only mode to transition to read-write mode
  dm thin: re-establish read-only state when switching to fail mode
  dm thin: always fallback the pool mode if commit fails
  dm thin: switch to read-only mode if metadata space is exhausted
  dm thin: switch to read only mode if a mapping insert fails
  dm space map metadata: return on failure in sm_metadata_new_block
  dm table: fail dm_table_create on dm_round_up overflow
  dm snapshot: avoid snapshot space leak on crash
  dm delay: fix a possible deadlock due to shared workqueue
      93e1585e
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