ACK: [SRU][Cosmic][PULL] Updates for Spectre v1 (CVE-2017-5753)

[Stefan Bader]

On 10.04.19 09:38, Juerg Haefliger wrote:
> This pull request contains fix(es) for the following CVE(s):
>   CVE-2017-5753
> 
> Pull in the latest Spectre v1 fixes from mainline. All commits are either
> clean cherry-picks or simple backports (context adjustments only).
> 
> The changes are fairly trivial and non-intrusive (low risk) in that they
> sprinkle array_index_nospec() calls over different places where an array
> index is user controllable.
> 
> Compile-tested all supported architectures.
> 
> Signed-off-by: Juerg Haefliger <juergh at canonical.com>
> ---
> 
> The following changes since commit 0a4b03deaca7749c26b776ded32d6ea38db0b3ee:
> 
>   openvswitch: fix flow actions reallocation (2019-04-08 17:21:25 +0200)
> 
> are available in the Git repository at:
> 
>   git://git.launchpad.net/~juergh/+git/cosmic-linux update-spectre-v1
> 
> for you to fetch changes up to 2ff3f1444a12589176e2c628465cdd465b8ffa03:
> 
>   ALSA: seq: oss: Fix Spectre v1 vulnerability (2019-04-09 09:47:03 +0200)
> 
> ----------------------------------------------------------------
> Breno Leitao (1):
>       powerpc/ptrace: Mitigate potential Spectre v1
> 
> David S. Miller (1):
>       net: Revert recent Spectre-v1 patches.
> 
> Gustavo A. R. Silva (19):
>       drm/bufs: Fix Spectre v1 vulnerability
>       drivers/misc/sgi-gru: fix Spectre v1 vulnerability
>       ipv4: Fix potential Spectre v1 vulnerability
>       ALSA: emux: Fix potential Spectre v1 vulnerabilities
>       ALSA: pcm: Fix potential Spectre v1 vulnerability
>       ip6mr: Fix potential Spectre v1 vulnerability
>       ALSA: rme9652: Fix potential Spectre v1 vulnerability
>       ALSA: emu10k1: Fix potential Spectre v1 vulnerabilities
>       KVM: arm/arm64: vgic: Fix off-by-one bug in vgic_get_irq()
>       drm/ioctl: Fix Spectre v1 vulnerabilities
>       net: core: Fix Spectre v1 vulnerability
>       phonet: af_phonet: Fix Spectre v1 vulnerability
>       nfc: af_nfc: Fix Spectre v1 vulnerability
>       can: af_can: Fix Spectre v1 vulnerability
>       char/mwave: fix potential Spectre v1 vulnerability
>       applicom: Fix potential Spectre v1 vulnerabilities
>       ipmi: msghandler: Fix potential Spectre v1 vulnerabilities
>       ALSA: rawmidi: Fix potential Spectre v1 vulnerability
>       ALSA: seq: oss: Fix Spectre v1 vulnerability
> 
> Jeff Moyer (1):
>       aio: fix spectre gadget in lookup_ioctx
> 
> Johannes Berg (1):
>       cfg80211: prevent speculation on cfg80211_classify8021d() return
> 
> Martin Schwidefsky (1):
>       s390/keyboard: sanitize array index in do_kdsk_ioctl
> 
>  arch/powerpc/kernel/ptrace.c        |  8 +++++++-
>  drivers/char/applicom.c             | 35 ++++++++++++++++++++++++-----------
>  drivers/char/ipmi/ipmi_msghandler.c | 26 ++++++++++++++++++--------
>  drivers/char/mwave/mwavedd.c        |  7 +++++++
>  drivers/gpu/drm/drm_bufs.c          |  3 +++
>  drivers/gpu/drm/drm_ioctl.c         | 10 ++++++++--
>  drivers/misc/sgi-gru/grukdump.c     |  4 ++++
>  drivers/s390/char/keyboard.c        | 28 ++++++++++++++++------------
>  fs/aio.c                            |  2 ++
>  net/ipv4/ipmr.c                     |  4 ++++
>  net/ipv6/ip6mr.c                    |  4 ++++
>  net/wireless/util.c                 | 34 ++++++++++++++++++++++++----------
>  sound/core/pcm.c                    |  2 ++
>  sound/core/rawmidi.c                |  2 ++
>  sound/core/seq/oss/seq_oss_synth.c  |  7 ++++---
>  sound/pci/emu10k1/emufx.c           |  5 +++++
>  sound/pci/rme9652/hdsp.c            | 10 ++++++----
>  sound/synth/emux/emux_hwdep.c       |  7 +++++--
>  virt/kvm/arm/vgic/vgic.c            |  2 +-
>  19 files changed, 146 insertions(+), 54 deletions(-)
> 
Acked-by: Stefan Bader <stefan.bader at canonical.com>

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