<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux.git/include/uapi/linux, branch v5.18-rc7</title>
<subtitle>Clone of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git</subtitle>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/'/>
<entry>
<title>Merge tag 'net-5.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net</title>
<updated>2022-05-12T18:51:45+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2022-05-12T18:51:45+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=f3f19f939c11925dadd3f4776f99f8c278a7017b'/>
<id>f3f19f939c11925dadd3f4776f99f8c278a7017b</id>
<content type='text'>
Pull networking fixes from Jakub Kicinski:
 "Including fixes from wireless, and bluetooth.

  No outstanding fires.

  Current release - regressions:

   - eth: atlantic: always deep reset on pm op, fix null-deref

  Current release - new code bugs:

   - rds: use maybe_get_net() when acquiring refcount on TCP sockets
     [refinement of a previous fix]

   - eth: ocelot: mark traps with a bool instead of guessing type based
     on list membership

  Previous releases - regressions:

   - net: fix skipping features in for_each_netdev_feature()

   - phy: micrel: fix null-derefs on suspend/resume and probe

   - bcmgenet: check for Wake-on-LAN interrupt probe deferral

  Previous releases - always broken:

   - ipv4: drop dst in multicast routing path, prevent leaks

   - ping: fix address binding wrt vrf

   - net: fix wrong network header length when BPF protocol translation
     is used on skbs with a fraglist

   - bluetooth: fix the creation of hdev-&gt;name

   - rfkill: uapi: fix RFKILL_IOCTL_MAX_SIZE ioctl request definition

   - wifi: iwlwifi: iwl-dbg: use del_timer_sync() before freeing

   - wifi: ath11k: reduce the wait time of 11d scan and hw scan while
     adding an interface

   - mac80211: fix rx reordering with non explicit / psmp ack policy

   - mac80211: reset MBSSID parameters upon connection

   - nl80211: fix races in nl80211_set_tx_bitrate_mask()

   - tls: fix context leak on tls_device_down

   - sched: act_pedit: really ensure the skb is writable

   - batman-adv: don't skb_split skbuffs with frag_list

   - eth: ocelot: fix various issues with TC actions (null-deref; bad
     stats; ineffective drops; ineffective filter removal)"

* tag 'net-5.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (61 commits)
  tls: Fix context leak on tls_device_down
  net: sfc: ef10: fix memory leak in efx_ef10_mtd_probe()
  net/smc: non blocking recvmsg() return -EAGAIN when no data and signal_pending
  net: dsa: bcm_sf2: Fix Wake-on-LAN with mac_link_down()
  mlxsw: Avoid warning during ip6gre device removal
  net: bcmgenet: Check for Wake-on-LAN interrupt probe deferral
  net: ethernet: mediatek: ppe: fix wrong size passed to memset()
  Bluetooth: Fix the creation of hdev-&gt;name
  i40e: i40e_main: fix a missing check on list iterator
  net/sched: act_pedit: really ensure the skb is writable
  s390/lcs: fix variable dereferenced before check
  s390/ctcm: fix potential memory leak
  s390/ctcm: fix variable dereferenced before check
  net: atlantic: verify hw_head_ lies within TX buffer ring
  net: atlantic: add check for MAX_SKB_FRAGS
  net: atlantic: reduce scope of is_rsc_complete
  net: atlantic: fix "frag[0] not initialized"
  net: stmmac: fix missing pci_disable_device() on error in stmmac_pci_probe()
  net: phy: micrel: Fix incorrect variable type in micrel
  decnet: Use container_of() for struct dn_neigh casts
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull networking fixes from Jakub Kicinski:
 "Including fixes from wireless, and bluetooth.

  No outstanding fires.

  Current release - regressions:

   - eth: atlantic: always deep reset on pm op, fix null-deref

  Current release - new code bugs:

   - rds: use maybe_get_net() when acquiring refcount on TCP sockets
     [refinement of a previous fix]

   - eth: ocelot: mark traps with a bool instead of guessing type based
     on list membership

  Previous releases - regressions:

   - net: fix skipping features in for_each_netdev_feature()

   - phy: micrel: fix null-derefs on suspend/resume and probe

   - bcmgenet: check for Wake-on-LAN interrupt probe deferral

  Previous releases - always broken:

   - ipv4: drop dst in multicast routing path, prevent leaks

   - ping: fix address binding wrt vrf

   - net: fix wrong network header length when BPF protocol translation
     is used on skbs with a fraglist

   - bluetooth: fix the creation of hdev-&gt;name

   - rfkill: uapi: fix RFKILL_IOCTL_MAX_SIZE ioctl request definition

   - wifi: iwlwifi: iwl-dbg: use del_timer_sync() before freeing

   - wifi: ath11k: reduce the wait time of 11d scan and hw scan while
     adding an interface

   - mac80211: fix rx reordering with non explicit / psmp ack policy

   - mac80211: reset MBSSID parameters upon connection

   - nl80211: fix races in nl80211_set_tx_bitrate_mask()

   - tls: fix context leak on tls_device_down

   - sched: act_pedit: really ensure the skb is writable

   - batman-adv: don't skb_split skbuffs with frag_list

   - eth: ocelot: fix various issues with TC actions (null-deref; bad
     stats; ineffective drops; ineffective filter removal)"

* tag 'net-5.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (61 commits)
  tls: Fix context leak on tls_device_down
  net: sfc: ef10: fix memory leak in efx_ef10_mtd_probe()
  net/smc: non blocking recvmsg() return -EAGAIN when no data and signal_pending
  net: dsa: bcm_sf2: Fix Wake-on-LAN with mac_link_down()
  mlxsw: Avoid warning during ip6gre device removal
  net: bcmgenet: Check for Wake-on-LAN interrupt probe deferral
  net: ethernet: mediatek: ppe: fix wrong size passed to memset()
  Bluetooth: Fix the creation of hdev-&gt;name
  i40e: i40e_main: fix a missing check on list iterator
  net/sched: act_pedit: really ensure the skb is writable
  s390/lcs: fix variable dereferenced before check
  s390/ctcm: fix potential memory leak
  s390/ctcm: fix variable dereferenced before check
  net: atlantic: verify hw_head_ lies within TX buffer ring
  net: atlantic: add check for MAX_SKB_FRAGS
  net: atlantic: reduce scope of is_rsc_complete
  net: atlantic: fix "frag[0] not initialized"
  net: stmmac: fix missing pci_disable_device() on error in stmmac_pci_probe()
  net: phy: micrel: Fix incorrect variable type in micrel
  decnet: Use container_of() for struct dn_neigh casts
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'wireless-2022-05-11' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless</title>
<updated>2022-05-12T00:33:01+00:00</updated>
<author>
<name>Jakub Kicinski</name>
<email>kuba@kernel.org</email>
</author>
<published>2022-05-12T00:33:01+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=8bf6008c8bbca77547aac118d022071b94b4cccd'/>
<id>8bf6008c8bbca77547aac118d022071b94b4cccd</id>
<content type='text'>
Kalle Valo says:

====================
wireless fixes for v5.18

Second set of fixes for v5.18 and hopefully the last one. We have a
new iwlwifi maintainer, a fix to rfkill ioctl interface and important
fixes to both stack and two drivers.

* tag 'wireless-2022-05-11' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
  rfkill: uapi: fix RFKILL_IOCTL_MAX_SIZE ioctl request definition
  nl80211: fix locking in nl80211_set_tx_bitrate_mask()
  mac80211_hwsim: call ieee80211_tx_prepare_skb under RCU protection
  mac80211_hwsim: fix RCU protected chanctx access
  mailmap: update Kalle Valo's email
  mac80211: Reset MBSSID parameters upon connection
  cfg80211: retrieve S1G operating channel number
  nl80211: validate S1G channel width
  mac80211: fix rx reordering with non explicit / psmp ack policy
  ath11k: reduce the wait time of 11d scan and hw scan while add interface
  MAINTAINERS: update iwlwifi driver maintainer
  iwlwifi: iwl-dbg: Use del_timer_sync() before freeing
====================

Link: https://lore.kernel.org/r/20220511154535.A1A12C340EE@smtp.kernel.org
Signed-off-by: Jakub Kicinski &lt;kuba@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Kalle Valo says:

====================
wireless fixes for v5.18

Second set of fixes for v5.18 and hopefully the last one. We have a
new iwlwifi maintainer, a fix to rfkill ioctl interface and important
fixes to both stack and two drivers.

* tag 'wireless-2022-05-11' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
  rfkill: uapi: fix RFKILL_IOCTL_MAX_SIZE ioctl request definition
  nl80211: fix locking in nl80211_set_tx_bitrate_mask()
  mac80211_hwsim: call ieee80211_tx_prepare_skb under RCU protection
  mac80211_hwsim: fix RCU protected chanctx access
  mailmap: update Kalle Valo's email
  mac80211: Reset MBSSID parameters upon connection
  cfg80211: retrieve S1G operating channel number
  nl80211: validate S1G channel width
  mac80211: fix rx reordering with non explicit / psmp ack policy
  ath11k: reduce the wait time of 11d scan and hw scan while add interface
  MAINTAINERS: update iwlwifi driver maintainer
  iwlwifi: iwl-dbg: Use del_timer_sync() before freeing
====================

Link: https://lore.kernel.org/r/20220511154535.A1A12C340EE@smtp.kernel.org
Signed-off-by: Jakub Kicinski &lt;kuba@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost</title>
<updated>2022-05-10T18:15:05+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2022-05-10T18:15:05+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=feb9c5e19e913b53cb536a7aa7c9f20107bb51ec'/>
<id>feb9c5e19e913b53cb536a7aa7c9f20107bb51ec</id>
<content type='text'>
Pull virtio fix from Michael Tsirkin:
 "A last minute fixup of the transitional ID numbers.

  Important to get these right - if users start to depend on the wrong
  ones they are very hard to fix"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio: fix virtio transitional ids
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull virtio fix from Michael Tsirkin:
 "A last minute fixup of the transitional ID numbers.

  Important to get these right - if users start to depend on the wrong
  ones they are very hard to fix"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio: fix virtio transitional ids
</pre>
</div>
</content>
</entry>
<entry>
<title>virtio: fix virtio transitional ids</title>
<updated>2022-05-10T11:22:28+00:00</updated>
<author>
<name>Shunsuke Mie</name>
<email>mie@igel.co.jp</email>
</author>
<published>2022-05-10T10:27:23+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=7ff960a6fe399fdcbca6159063684671ae57eee9'/>
<id>7ff960a6fe399fdcbca6159063684671ae57eee9</id>
<content type='text'>
This commit fixes the transitional PCI device ID.

Fixes: d61914ea6ada ("virtio: update virtio id table, add transitional ids")
Signed-off-by: Shunsuke Mie &lt;mie@igel.co.jp&gt;
Link: https://lore.kernel.org/r/20220510102723.87666-1-mie@igel.co.jp
Signed-off-by: Michael S. Tsirkin &lt;mst@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This commit fixes the transitional PCI device ID.

Fixes: d61914ea6ada ("virtio: update virtio id table, add transitional ids")
Signed-off-by: Shunsuke Mie &lt;mie@igel.co.jp&gt;
Link: https://lore.kernel.org/r/20220510102723.87666-1-mie@igel.co.jp
Signed-off-by: Michael S. Tsirkin &lt;mst@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>rfkill: uapi: fix RFKILL_IOCTL_MAX_SIZE ioctl request definition</title>
<updated>2022-05-09T12:00:07+00:00</updated>
<author>
<name>Gleb Fotengauer-Malinovskiy</name>
<email>glebfm@altlinux.org</email>
</author>
<published>2022-05-06T17:24:54+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=a36e07dfe6ee71e209383ea9288cd8d1617e14f9'/>
<id>a36e07dfe6ee71e209383ea9288cd8d1617e14f9</id>
<content type='text'>
The definition of RFKILL_IOCTL_MAX_SIZE introduced by commit
54f586a91532 ("rfkill: make new event layout opt-in") is unusable
since it is based on RFKILL_IOC_EXT_SIZE which has not been defined.
Fix that by replacing the undefined constant with the constant which
is intended to be used in this definition.

Fixes: 54f586a91532 ("rfkill: make new event layout opt-in")
Cc: stable@vger.kernel.org # 5.11+
Signed-off-by: Gleb Fotengauer-Malinovskiy &lt;glebfm@altlinux.org&gt;
Signed-off-by: Dmitry V. Levin &lt;ldv@altlinux.org&gt;
Link: https://lore.kernel.org/r/20220506172454.120319-1-glebfm@altlinux.org
[add commit message provided later by Dmitry]
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The definition of RFKILL_IOCTL_MAX_SIZE introduced by commit
54f586a91532 ("rfkill: make new event layout opt-in") is unusable
since it is based on RFKILL_IOC_EXT_SIZE which has not been defined.
Fix that by replacing the undefined constant with the constant which
is intended to be used in this definition.

Fixes: 54f586a91532 ("rfkill: make new event layout opt-in")
Cc: stable@vger.kernel.org # 5.11+
Signed-off-by: Gleb Fotengauer-Malinovskiy &lt;glebfm@altlinux.org&gt;
Signed-off-by: Dmitry V. Levin &lt;ldv@altlinux.org&gt;
Link: https://lore.kernel.org/r/20220506172454.120319-1-glebfm@altlinux.org
[add commit message provided later by Dmitry]
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm</title>
<updated>2022-05-01T18:49:32+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2022-05-01T18:49:32+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=b6b2648911bbc13c59def22fd7b4b7c511a4eb92'/>
<id>b6b2648911bbc13c59def22fd7b4b7c511a4eb92</id>
<content type='text'>
Pull kvm fixes from Paolo Bonzini:
 "ARM:

   - Take care of faults occuring between the PARange and IPA range by
     injecting an exception

   - Fix S2 faults taken from a host EL0 in protected mode

   - Work around Oops caused by a PMU access from a 32bit guest when PMU
     has been created. This is a temporary bodge until we fix it for
     good.

  x86:

   - Fix potential races when walking host page table

   - Fix shadow page table leak when KVM runs nested

   - Work around bug in userspace when KVM synthesizes leaf 0x80000021
     on older (pre-EPYC) or Intel processors

  Generic (but affects only RISC-V):

   - Fix bad user ABI for KVM_EXIT_SYSTEM_EVENT"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: work around QEMU issue with synthetic CPUID leaves
  Revert "x86/mm: Introduce lookup_address_in_mm()"
  KVM: x86/mmu: fix potential races when walking host page table
  KVM: fix bad user ABI for KVM_EXIT_SYSTEM_EVENT
  KVM: x86/mmu: Do not create SPTEs for GFNs that exceed host.MAXPHYADDR
  KVM: arm64: Inject exception on out-of-IPA-range translation fault
  KVM/arm64: Don't emulate a PMU for 32-bit guests if feature not set
  KVM: arm64: Handle host stage-2 faults from 32-bit EL0
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull kvm fixes from Paolo Bonzini:
 "ARM:

   - Take care of faults occuring between the PARange and IPA range by
     injecting an exception

   - Fix S2 faults taken from a host EL0 in protected mode

   - Work around Oops caused by a PMU access from a 32bit guest when PMU
     has been created. This is a temporary bodge until we fix it for
     good.

  x86:

   - Fix potential races when walking host page table

   - Fix shadow page table leak when KVM runs nested

   - Work around bug in userspace when KVM synthesizes leaf 0x80000021
     on older (pre-EPYC) or Intel processors

  Generic (but affects only RISC-V):

   - Fix bad user ABI for KVM_EXIT_SYSTEM_EVENT"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: work around QEMU issue with synthetic CPUID leaves
  Revert "x86/mm: Introduce lookup_address_in_mm()"
  KVM: x86/mmu: fix potential races when walking host page table
  KVM: fix bad user ABI for KVM_EXIT_SYSTEM_EVENT
  KVM: x86/mmu: Do not create SPTEs for GFNs that exceed host.MAXPHYADDR
  KVM: arm64: Inject exception on out-of-IPA-range translation fault
  KVM/arm64: Don't emulate a PMU for 32-bit guests if feature not set
  KVM: arm64: Handle host stage-2 faults from 32-bit EL0
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux</title>
<updated>2022-04-29T17:36:47+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2022-04-29T17:36:47+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=66c2112b74c2b94ee5191bfb8acb717b79377e98'/>
<id>66c2112b74c2b94ee5191bfb8acb717b79377e98</id>
<content type='text'>
Pull arm64 fix from Will Deacon:
 "Rename and reallocate the PT_ARM_MEMTAG_MTE ELF segment type.

  This is a fix to the MTE ELF ABI for a bug that was added during the
  most recent merge window as part of the coredump support.

  The issue is that the value assigned to the new PT_ARM_MEMTAG_MTE
  segment type has already been allocated to PT_AARCH64_UNWIND by the
  ELF ABI, so we've bumped the value and changed the name of the
  identifier to be better aligned with the existing one"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  elf: Fix the arm64 MTE ELF segment name and value
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull arm64 fix from Will Deacon:
 "Rename and reallocate the PT_ARM_MEMTAG_MTE ELF segment type.

  This is a fix to the MTE ELF ABI for a bug that was added during the
  most recent merge window as part of the coredump support.

  The issue is that the value assigned to the new PT_ARM_MEMTAG_MTE
  segment type has already been allocated to PT_AARCH64_UNWIND by the
  ELF ABI, so we've bumped the value and changed the name of the
  identifier to be better aligned with the existing one"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  elf: Fix the arm64 MTE ELF segment name and value
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'kvm-fixes-for-5.18-rc5' into HEAD</title>
<updated>2022-04-29T16:39:34+00:00</updated>
<author>
<name>Paolo Bonzini</name>
<email>pbonzini@redhat.com</email>
</author>
<published>2022-04-29T10:38:56+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=73331c5d84cf87974dc3616ef706847ff187d590'/>
<id>73331c5d84cf87974dc3616ef706847ff187d590</id>
<content type='text'>
Fixes for (relatively) old bugs, to be merged in both the -rc and next
development trees:

* Fix potential races when walking host page table

* Fix bad user ABI for KVM_EXIT_SYSTEM_EVENT

* Fix shadow page table leak when KVM runs nested
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Fixes for (relatively) old bugs, to be merged in both the -rc and next
development trees:

* Fix potential races when walking host page table

* Fix bad user ABI for KVM_EXIT_SYSTEM_EVENT

* Fix shadow page table leak when KVM runs nested
</pre>
</div>
</content>
</entry>
<entry>
<title>KVM: fix bad user ABI for KVM_EXIT_SYSTEM_EVENT</title>
<updated>2022-04-29T16:38:22+00:00</updated>
<author>
<name>Paolo Bonzini</name>
<email>pbonzini@redhat.com</email>
</author>
<published>2022-04-22T10:30:13+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=d495f942f40aa412f8d4d65951152648cfa09903'/>
<id>d495f942f40aa412f8d4d65951152648cfa09903</id>
<content type='text'>
When KVM_EXIT_SYSTEM_EVENT was introduced, it included a flags
member that at the time was unused.  Unfortunately this extensibility
mechanism has several issues:

- x86 is not writing the member, so it would not be possible to use it
  on x86 except for new events

- the member is not aligned to 64 bits, so the definition of the
  uAPI struct is incorrect for 32- on 64-bit userspace.  This is a
  problem for RISC-V, which supports CONFIG_KVM_COMPAT, but fortunately
  usage of flags was only introduced in 5.18.

Since padding has to be introduced, place a new field in there
that tells if the flags field is valid.  To allow further extensibility,
in fact, change flags to an array of 16 values, and store how many
of the values are valid.  The availability of the new ndata field
is tied to a system capability; all architectures are changed to
fill in the field.

To avoid breaking compilation of userspace that was using the flags
field, provide a userspace-only union to overlap flags with data[0].
The new field is placed at the same offset for both 32- and 64-bit
userspace.

Cc: Will Deacon &lt;will@kernel.org&gt;
Cc: Marc Zyngier &lt;maz@kernel.org&gt;
Cc: Peter Gonda &lt;pgonda@google.com&gt;
Cc: Sean Christopherson &lt;seanjc@google.com&gt;
Signed-off-by: Paolo Bonzini &lt;pbonzini@redhat.com&gt;
Reported-by: kernel test robot &lt;lkp@intel.com&gt;
Message-Id: &lt;20220422103013.34832-1-pbonzini@redhat.com&gt;
Signed-off-by: Paolo Bonzini &lt;pbonzini@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
When KVM_EXIT_SYSTEM_EVENT was introduced, it included a flags
member that at the time was unused.  Unfortunately this extensibility
mechanism has several issues:

- x86 is not writing the member, so it would not be possible to use it
  on x86 except for new events

- the member is not aligned to 64 bits, so the definition of the
  uAPI struct is incorrect for 32- on 64-bit userspace.  This is a
  problem for RISC-V, which supports CONFIG_KVM_COMPAT, but fortunately
  usage of flags was only introduced in 5.18.

Since padding has to be introduced, place a new field in there
that tells if the flags field is valid.  To allow further extensibility,
in fact, change flags to an array of 16 values, and store how many
of the values are valid.  The availability of the new ndata field
is tied to a system capability; all architectures are changed to
fill in the field.

To avoid breaking compilation of userspace that was using the flags
field, provide a userspace-only union to overlap flags with data[0].
The new field is placed at the same offset for both 32- and 64-bit
userspace.

Cc: Will Deacon &lt;will@kernel.org&gt;
Cc: Marc Zyngier &lt;maz@kernel.org&gt;
Cc: Peter Gonda &lt;pgonda@google.com&gt;
Cc: Sean Christopherson &lt;seanjc@google.com&gt;
Signed-off-by: Paolo Bonzini &lt;pbonzini@redhat.com&gt;
Reported-by: kernel test robot &lt;lkp@intel.com&gt;
Message-Id: &lt;20220422103013.34832-1-pbonzini@redhat.com&gt;
Signed-off-by: Paolo Bonzini &lt;pbonzini@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>elf: Fix the arm64 MTE ELF segment name and value</title>
<updated>2022-04-28T10:37:06+00:00</updated>
<author>
<name>Catalin Marinas</name>
<email>catalin.marinas@arm.com</email>
</author>
<published>2022-04-25T15:18:33+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=c35fe2a68f29a0bda15ae994154cacaae5f69791'/>
<id>c35fe2a68f29a0bda15ae994154cacaae5f69791</id>
<content type='text'>
Unfortunately, the name/value choice for the MTE ELF segment type
(PT_ARM_MEMTAG_MTE) was pretty poor: LOPROC+1 is already in use by
PT_AARCH64_UNWIND, as defined in the AArch64 ELF ABI
(https://github.com/ARM-software/abi-aa/blob/main/aaelf64/aaelf64.rst).

Update the ELF segment type value to LOPROC+2 and also change the define
to PT_AARCH64_MEMTAG_MTE to match the AArch64 ELF ABI namespace. The
AArch64 ELF ABI document is updating accordingly (segment type not
previously mentioned in the document).

Signed-off-by: Catalin Marinas &lt;catalin.marinas@arm.com&gt;
Fixes: 761b9b366cec ("elf: Introduce the ARM MTE ELF segment type")
Cc: Will Deacon &lt;will@kernel.org&gt;
Cc: Jonathan Corbet &lt;corbet@lwn.net&gt;
Cc: Eric Biederman &lt;ebiederm@xmission.com&gt;
Cc: Kees Cook &lt;keescook@chromium.org&gt;
Cc: Luis Machado &lt;luis.machado@arm.com&gt;
Cc: Richard Earnshaw &lt;Richard.Earnshaw@arm.com&gt;
Link: https://lore.kernel.org/r/20220425151833.2603830-1-catalin.marinas@arm.com
Signed-off-by: Will Deacon &lt;will@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Unfortunately, the name/value choice for the MTE ELF segment type
(PT_ARM_MEMTAG_MTE) was pretty poor: LOPROC+1 is already in use by
PT_AARCH64_UNWIND, as defined in the AArch64 ELF ABI
(https://github.com/ARM-software/abi-aa/blob/main/aaelf64/aaelf64.rst).

Update the ELF segment type value to LOPROC+2 and also change the define
to PT_AARCH64_MEMTAG_MTE to match the AArch64 ELF ABI namespace. The
AArch64 ELF ABI document is updating accordingly (segment type not
previously mentioned in the document).

Signed-off-by: Catalin Marinas &lt;catalin.marinas@arm.com&gt;
Fixes: 761b9b366cec ("elf: Introduce the ARM MTE ELF segment type")
Cc: Will Deacon &lt;will@kernel.org&gt;
Cc: Jonathan Corbet &lt;corbet@lwn.net&gt;
Cc: Eric Biederman &lt;ebiederm@xmission.com&gt;
Cc: Kees Cook &lt;keescook@chromium.org&gt;
Cc: Luis Machado &lt;luis.machado@arm.com&gt;
Cc: Richard Earnshaw &lt;Richard.Earnshaw@arm.com&gt;
Link: https://lore.kernel.org/r/20220425151833.2603830-1-catalin.marinas@arm.com
Signed-off-by: Will Deacon &lt;will@kernel.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
