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  1. Apr 08, 2022
  3. Apr 07, 2022
    • Dave Airlie's avatar
      Merge tag 'drm-misc-fixes-2022-04-07' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes · 88711fa9
      Dave Airlie authored 
      
drm-misc-fixes for v5.18-rc2:
- Fix a crash when booting with nouveau on tegra.
- Don't require input port for MIPI-DSI, and make width/height mandatory.
- Fix unregistering of framebuffers without device.

Signed-off-by: default avatarDave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/58fa2262-3eb6-876d-7157-ab7a135696b7@linux.intel.com
      88711fa9
    • Dave Airlie's avatar
      Merge tag 'drm-misc-next-fixes-2022-04-07' of... · 995f7480
      Dave Airlie authored 
      Merge tag 'drm-misc-next-fixes-2022-04-07' of git://anongit.freedesktop.org/drm/drm-misc

 into drm-fixes

drm-misc-next-fixes for v5.18-rc2:
- fix warning about fence containers
- fix logic error in new fence merge code
- handle empty dma_fence_arrays gracefully
- Try all possible cases for bridge/panel detection.

Signed-off-by: default avatarDave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/3b8e6439-612e-f640-e380-51e834393e94@linux.intel.com
      995f7480
    • Linus Torvalds's avatar
      Merge tag 'hyperv-fixes-signed-20220407' of... · 42e7a03d
      Linus Torvalds authored 
      Merge tag 'hyperv-fixes-signed-20220407' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull hyperv fixes from Wei Liu:

 - Correctly propagate coherence information for VMbus devices (Michael
   Kelley)

 - Disable balloon and memory hot-add on ARM64 temporarily (Boqun Feng)

 - Use barrier to prevent reording when reading ring buffer (Michael
   Kelley)

 - Use virt_store_mb in favour of smp_store_mb (Andrea Parri)

 - Fix VMbus device object initialization (Andrea Parri)

 - Deactivate sysctl_record_panic_msg on isolated guest (Andrea Parri)

 - Fix a crash when unloading VMbus module (Guilherme G. Piccoli)

* tag 'hyperv-fixes-signed-20220407' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  Drivers: hv: vmbus: Replace smp_store_mb() with virt_store_mb()
  Drivers: hv: balloon: Disable balloon and hot-add accordingly
  Drivers: hv: balloon: Support status report for larger page sizes
  Drivers: hv: vmbus: Prevent load re-ordering when reading ring buffer
  PCI: hv: Propagate coherence from VMbus device to PCI device
  Drivers: hv: vmbus: Propagate VMbus coherence to each VMbus device
  Drivers: hv: vmbus: Fix potential crash on module unload
  Drivers: hv: vmbus: Fix initialization of device object in vmbus_device_register()
  Drivers: hv: vmbus: Deactivate sysctl_record_panic_msg by default in isolated guests
      42e7a03d
    • Linus Torvalds's avatar
      Merge tag 'random-5.18-rc2-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random · 3638bd90
      Linus Torvalds authored 
      Pull random number generator fixes from Jason Donenfeld:

 - Another fixup to the fast_init/crng_init split, this time in how much
   entropy is being credited, from Jan Varho.

 - As discussed, we now opportunistically call try_to_generate_entropy()
   in /dev/urandom reads, as a replacement for the reverted commit. I
   opted to not do the more invasive wait_for_random_bytes() change at
   least for now, preferring to do something smaller and more obvious
   for the time being, but maybe that can be revisited as things evolve
   later.

 - Userspace can use FUSE or userfaultfd or simply move a process to
   idle priority in order to make a read from the random device never
   complete, which breaks forward secrecy, fixed by overwriting
   sensitive bytes early on in the function.

 - Jann Horn noticed that /dev/urandom reads were only checking for
   pending signals if need_resched() was true, a bug going back to the
   genesis commit, now fixed by always checking for signal_pending() and
   calling cond_resched(). This explains various noticeable signal
   delivery delays I've seen in programs over the years that do long
   reads from /dev/urandom.

 - In order to be more like other devices (e.g. /dev/zero) and to
   mitigate the impact of fixing the above bug, which has been around
   forever (users have never really needed to check the return value of
   read() for medium-sized reads and so perhaps many didn't), we now
   move signal checking to the bottom part of the loop, and do so every
   PAGE_SIZE-bytes.

* tag 'random-5.18-rc2-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
  random: check for signals every PAGE_SIZE chunk of /dev/[u]random
  random: check for signal_pending() outside of need_resched() check
  random: do not allow user to keep crng key around on stack
  random: opportunistically initialize on /dev/urandom reads
  random: do not split fast init input in add_hwgenerator_randomness()
      3638bd90
    • Linus Torvalds's avatar
      Merge tag 'ata-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata · 640b5037
      Linus Torvalds authored 
      Pull ata fixes from Damien Le Moal:

 - Fix a compilation warning due to an uninitialized variable in
   ata_sff_lost_interrupt(), from me.

 - Fix invalid internal command tag handling in the sata_dwc_460ex
   driver, from Christian.

 - Disable READ LOG DMA EXT with Samsung 840 EVO SSDs as this command
   causes the drives to hang, from Christian.

 - Change the config option CONFIG_SATA_LPM_POLICY back to its original
   name CONFIG_SATA_LPM_MOBILE_POLICY to avoid potential problems with
   users losing their configuration (as discussed during the merge
   window), from Mario.

* tag 'ata-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
  ata: ahci: Rename CONFIG_SATA_LPM_POLICY configuration item back
  ata: libata-core: Disable READ LOG DMA EXT for Samsung 840 EVOs
  ata: sata_dwc_460ex: Fix crash due to OOB write
  ata: libata-sff: Fix compilation warning in ata_sff_lost_interrupt()
      640b5037
    • Wolfram Sang's avatar
      mmc: renesas_sdhi: don't overwrite TAP settings when HS400 tuning is complete · 03e59b1e
      Wolfram Sang authored 
      When HS400 tuning is complete and HS400 is going to be activated, we
have to keep the current number of TAPs and should not overwrite them
with a hardcoded value. This was probably a copy&paste mistake when
upporting HS400 support from the BSP.

Fixes: 26eb2607

 ("mmc: renesas_sdhi: add eMMC HS400 mode support")
Reported-by: default avatarYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: default avatarYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220404114902.12175-1-wsa+renesas@sang-engineering.com


Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
      03e59b1e
    • Duoming Zhou's avatar
      drivers: net: slip: fix NPD bug in sl_tx_timeout() · ec4eb8a8
      Duoming Zhou authored 
      
When a slip driver is detaching, the slip_close() will act to
cleanup necessary resources and sl->tty is set to NULL in
slip_close(). Meanwhile, the packet we transmit is blocked,
sl_tx_timeout() will be called. Although slip_close() and
sl_tx_timeout() use sl->lock to synchronize, we don`t judge
whether sl->tty equals to NULL in sl_tx_timeout() and the
null pointer dereference bug will happen.

   (Thread 1)                 |      (Thread 2)
                              | slip_close()
                              |   spin_lock_bh(&sl->lock)
                              |   ...
...                           |   sl->tty = NULL //(1)
sl_tx_timeout()               |   spin_unlock_bh(&sl->lock)
  spin_lock(&sl->lock);       |
  ...                         |   ...
  tty_chars_in_buffer(sl->tty)|
    if (tty->ops->..) //(2)   |
    ...                       |   synchronize_rcu()

We set NULL to sl->tty in position (1) and dereference sl->tty
in position (2).

This patch adds check in sl_tx_timeout(). If sl->tty equals to
NULL, sl_tx_timeout() will goto out.

Signed-off-by: default avatarDuoming Zhou <duoming@zju.edu.cn>
Reviewed-by: default avatarJiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20220405132206.55291-1-duoming@zju.edu.cn


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      ec4eb8a8
    • Jakub Kicinski's avatar
      Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf · 8e9d0d7a
      Jakub Kicinski authored 
      Alexei Starovoitov says:

====================
pull-request: bpf 2022-04-06

We've added 8 non-merge commits during the last 8 day(s) which contain
a total of 9 files changed, 139 insertions(+), 36 deletions(-).

The main changes are:

1) rethook related fixes, from Jiri and Masami.

2) Fix the case when tracing bpf prog is attached to struct_ops, from Martin.

3) Support dual-stack sockets in bpf_tcp_check_syncookie, from Maxim.

* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  bpf: Adjust bpf_tcp_check_syncookie selftest to test dual-stack sockets
  bpf: Support dual-stack sockets in bpf_tcp_check_syncookie
  bpf: selftests: Test fentry tracing a struct_ops program
  bpf: Resolve to prog->aux->dst_prog->type only for BPF_PROG_TYPE_EXT
  rethook: Fix to use WRITE_ONCE() for rethook:: Handler
  selftests/bpf: Fix warning comparing pointer to 0
  bpf: Fix sparse warnings in kprobe_multi_resolve_syms
  bpftool: Explicit errno handling...
      8e9d0d7a
  5. Apr 06, 2022

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