<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux.git/include, branch v6.2-rc6</title>
<subtitle>Linux kernel source tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/'/>
<entry>
<title>Merge tag 'drm-fixes-2023-01-27' of git://anongit.freedesktop.org/drm/drm</title>
<updated>2023-01-27T21:18:14+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2023-01-27T21:18:14+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=76e26e3c6a49b368a6fd38e2da2b1b164470cc52'/>
<id>76e26e3c6a49b368a6fd38e2da2b1b164470cc52</id>
<content type='text'>
Pull drm fixes from Dave Airlie:
 "Fairly small this week as well, i915 has a memory leak fix and some
  minor changes, and amdgpu has some MST fixes, and some other minor
  ones:

  drm:
   - DP MST kref fix
   - fb_helper: check return value

  i915:
   - Fix BSC default context for Meteor Lake
   - Fix selftest-scheduler's modify_type
   - memory leak fix

  amdgpu:
   - GC11.x fixes
   - SMU13.0.0 fix
   - Freesync video fix
   - DP MST fixes
   - build fix"

* tag 'drm-fixes-2023-01-27' of git://anongit.freedesktop.org/drm/drm:
  amdgpu: fix build on non-DCN platforms.
  drm/amd/display: Fix timing not changning when freesync video is enabled
  drm/display/dp_mst: Correct the kref of port.
  drm/amdgpu/display/mst: update mst_mgr relevant variable when long HPD
  drm/amdgpu/display/mst: limit payload to be updated one by one
  drm/amdgpu/display/mst: Fix mst_state-&gt;pbn_div and slot count assignments
  drm/amdgpu: declare firmware for new MES 11.0.4
  drm/amdgpu: enable imu firmware for GC 11.0.4
  drm/amd/pm: add missing AllowIHInterrupt message mapping for SMU13.0.0
  drm/amdgpu: remove unconditional trap enable on add gfx11 queues
  drm/fb-helper: Use a per-driver FB deferred I/O handler
  drm/fb-helper: Check fb_deferred_io_init() return value
  drm/i915/selftest: fix intel_selftest_modify_policy argument types
  drm/i915/mtl: Fix bcs default context
  drm/i915: Fix a memory leak with reused mmap_offset
  drm/drm_vma_manager: Add drm_vma_node_allow_once()
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull drm fixes from Dave Airlie:
 "Fairly small this week as well, i915 has a memory leak fix and some
  minor changes, and amdgpu has some MST fixes, and some other minor
  ones:

  drm:
   - DP MST kref fix
   - fb_helper: check return value

  i915:
   - Fix BSC default context for Meteor Lake
   - Fix selftest-scheduler's modify_type
   - memory leak fix

  amdgpu:
   - GC11.x fixes
   - SMU13.0.0 fix
   - Freesync video fix
   - DP MST fixes
   - build fix"

* tag 'drm-fixes-2023-01-27' of git://anongit.freedesktop.org/drm/drm:
  amdgpu: fix build on non-DCN platforms.
  drm/amd/display: Fix timing not changning when freesync video is enabled
  drm/display/dp_mst: Correct the kref of port.
  drm/amdgpu/display/mst: update mst_mgr relevant variable when long HPD
  drm/amdgpu/display/mst: limit payload to be updated one by one
  drm/amdgpu/display/mst: Fix mst_state-&gt;pbn_div and slot count assignments
  drm/amdgpu: declare firmware for new MES 11.0.4
  drm/amdgpu: enable imu firmware for GC 11.0.4
  drm/amd/pm: add missing AllowIHInterrupt message mapping for SMU13.0.0
  drm/amdgpu: remove unconditional trap enable on add gfx11 queues
  drm/fb-helper: Use a per-driver FB deferred I/O handler
  drm/fb-helper: Check fb_deferred_io_init() return value
  drm/i915/selftest: fix intel_selftest_modify_policy argument types
  drm/i915/mtl: Fix bcs default context
  drm/i915: Fix a memory leak with reused mmap_offset
  drm/drm_vma_manager: Add drm_vma_node_allow_once()
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'drm-misc-fixes-2023-01-26' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes</title>
<updated>2023-01-27T02:31:09+00:00</updated>
<author>
<name>Dave Airlie</name>
<email>airlied@redhat.com</email>
</author>
<published>2023-01-27T02:31:02+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=d23db89883962d9b4cb3ad03dfd02e525ed2cc03'/>
<id>d23db89883962d9b4cb3ad03dfd02e525ed2cc03</id>
<content type='text'>
A fix and a preliminary patch to fix a memory leak in i915, and a use
after free fix for fbdev deferred io

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;

From: Maxime Ripard &lt;maxime@cerno.tech&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230126104018.cbrcjxl5wefdbb2f@houat
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
A fix and a preliminary patch to fix a memory leak in i915, and a use
after free fix for fbdev deferred io

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;

From: Maxime Ripard &lt;maxime@cerno.tech&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230126104018.cbrcjxl5wefdbb2f@houat
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'platform-drivers-x86-v6.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86</title>
<updated>2023-01-26T18:29:49+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2023-01-26T18:29:49+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=83abd4d4c4be8984ba5a3a813ccfedba79c7d6ad'/>
<id>83abd4d4c4be8984ba5a3a813ccfedba79c7d6ad</id>
<content type='text'>
Pull x86 platform driver fixes from Hans de Goede:

 -  Fix false positive apple_gmux backlight detection on older iGPU only
    MacBook models

 -  Various other small fixes and hardware-id additions

* tag 'platform-drivers-x86-v6.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: thinkpad_acpi: Fix profile modes on Intel platforms
  ACPI: video: Fix apple gmux detection
  platform/x86: apple-gmux: Add apple_gmux_detect() helper
  platform/x86: apple-gmux: Move port defines to apple-gmux.h
  platform/x86: hp-wmi: Fix cast to smaller integer type warning
  platform/x86/amd: pmc: Add a module parameter to disable workarounds
  platform/x86/amd: pmc: Disable IRQ1 wakeup for RN/CZN
  platform/x86: asus-wmi: Fix kbd_dock_devid tablet-switch reporting
  platform/x86: gigabyte-wmi: add support for B450M DS3H WIFI-CF
  platform/x86: hp-wmi: Handle Omen Key event
  platform/x86: dell-wmi: Add a keymap for KEY_MUTE in type 0x0010 table
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull x86 platform driver fixes from Hans de Goede:

 -  Fix false positive apple_gmux backlight detection on older iGPU only
    MacBook models

 -  Various other small fixes and hardware-id additions

* tag 'platform-drivers-x86-v6.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: thinkpad_acpi: Fix profile modes on Intel platforms
  ACPI: video: Fix apple gmux detection
  platform/x86: apple-gmux: Add apple_gmux_detect() helper
  platform/x86: apple-gmux: Move port defines to apple-gmux.h
  platform/x86: hp-wmi: Fix cast to smaller integer type warning
  platform/x86/amd: pmc: Add a module parameter to disable workarounds
  platform/x86/amd: pmc: Disable IRQ1 wakeup for RN/CZN
  platform/x86: asus-wmi: Fix kbd_dock_devid tablet-switch reporting
  platform/x86: gigabyte-wmi: add support for B450M DS3H WIFI-CF
  platform/x86: hp-wmi: Handle Omen Key event
  platform/x86: dell-wmi: Add a keymap for KEY_MUTE in type 0x0010 table
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'net-6.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net</title>
<updated>2023-01-26T18:20:12+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2023-01-26T18:20:12+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=28b4387f0ec08d48634fcc3e3687c93edc1503f9'/>
<id>28b4387f0ec08d48634fcc3e3687c93edc1503f9</id>
<content type='text'>
Pull networking fixes from Paolo Abeni:
 "Including fixes from netfilter.

  Current release - regressions:

   - sched: sch_taprio: do not schedule in taprio_reset()

  Previous releases - regressions:

   - core: fix UaF in netns ops registration error path

   - ipv4: prevent potential spectre v1 gadgets

   - ipv6: fix reachability confirmation with proxy_ndp

   - netfilter: fix for the set rbtree

   - eth: fec: use page_pool_put_full_page when freeing rx buffers

   - eth: iavf: fix temporary deadlock and failure to set MAC address

  Previous releases - always broken:

   - netlink: prevent potential spectre v1 gadgets

   - netfilter: fixes for SCTP connection tracking

   - mctp: struct sock lifetime fixes

   - eth: ravb: fix possible hang if RIS2_QFF1 happen

   - eth: tg3: resolve deadlock in tg3_reset_task() during EEH

  Misc:

   - Mat stepped out as MPTCP co-maintainer"

* tag 'net-6.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (40 commits)
  net: mdio-mux-meson-g12a: force internal PHY off on mux switch
  docs: networking: Fix bridge documentation URL
  tsnep: Fix TX queue stop/wake for multiple queues
  net/tg3: resolve deadlock in tg3_reset_task() during EEH
  net: mctp: mark socks as dead on unhash, prevent re-add
  net: mctp: hold key reference when looking up a general key
  net: mctp: move expiry timer delete to unhash
  net: mctp: add an explicit reference from a mctp_sk_key to sock
  net: ravb: Fix possible hang if RIS2_QFF1 happen
  net: ravb: Fix lack of register setting after system resumed for Gen3
  net/x25: Fix to not accept on connected socket
  ice: move devlink port creation/deletion
  sctp: fail if no bound addresses can be used for a given scope
  net/sched: sch_taprio: do not schedule in taprio_reset()
  Revert "Merge branch 'ethtool-mac-merge'"
  netrom: Fix use-after-free of a listening socket.
  netfilter: conntrack: unify established states for SCTP paths
  Revert "netfilter: conntrack: add sctp DATA_SENT state"
  netfilter: conntrack: fix bug in for_each_sctp_chunk
  netfilter: conntrack: fix vtag checks for ABORT/SHUTDOWN_COMPLETE
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull networking fixes from Paolo Abeni:
 "Including fixes from netfilter.

  Current release - regressions:

   - sched: sch_taprio: do not schedule in taprio_reset()

  Previous releases - regressions:

   - core: fix UaF in netns ops registration error path

   - ipv4: prevent potential spectre v1 gadgets

   - ipv6: fix reachability confirmation with proxy_ndp

   - netfilter: fix for the set rbtree

   - eth: fec: use page_pool_put_full_page when freeing rx buffers

   - eth: iavf: fix temporary deadlock and failure to set MAC address

  Previous releases - always broken:

   - netlink: prevent potential spectre v1 gadgets

   - netfilter: fixes for SCTP connection tracking

   - mctp: struct sock lifetime fixes

   - eth: ravb: fix possible hang if RIS2_QFF1 happen

   - eth: tg3: resolve deadlock in tg3_reset_task() during EEH

  Misc:

   - Mat stepped out as MPTCP co-maintainer"

* tag 'net-6.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (40 commits)
  net: mdio-mux-meson-g12a: force internal PHY off on mux switch
  docs: networking: Fix bridge documentation URL
  tsnep: Fix TX queue stop/wake for multiple queues
  net/tg3: resolve deadlock in tg3_reset_task() during EEH
  net: mctp: mark socks as dead on unhash, prevent re-add
  net: mctp: hold key reference when looking up a general key
  net: mctp: move expiry timer delete to unhash
  net: mctp: add an explicit reference from a mctp_sk_key to sock
  net: ravb: Fix possible hang if RIS2_QFF1 happen
  net: ravb: Fix lack of register setting after system resumed for Gen3
  net/x25: Fix to not accept on connected socket
  ice: move devlink port creation/deletion
  sctp: fail if no bound addresses can be used for a given scope
  net/sched: sch_taprio: do not schedule in taprio_reset()
  Revert "Merge branch 'ethtool-mac-merge'"
  netrom: Fix use-after-free of a listening socket.
  netfilter: conntrack: unify established states for SCTP paths
  Revert "netfilter: conntrack: add sctp DATA_SENT state"
  netfilter: conntrack: fix bug in for_each_sctp_chunk
  netfilter: conntrack: fix vtag checks for ABORT/SHUTDOWN_COMPLETE
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi</title>
<updated>2023-01-25T01:42:53+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2023-01-25T01:42:53+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=02db81a787e304e5afaa31dc66522d39d3f89f1a'/>
<id>02db81a787e304e5afaa31dc66522d39d3f89f1a</id>
<content type='text'>
Pull SCSI fixes from James Bottomley:
 "Six fixes, all in drivers.

  The biggest are the UFS devfreq fixes which address a lock inversion
  and the two iscsi_tcp fixes which try to prevent a use after free from
  userspace still accessing an area which the kernel has released (seen
  by KASAN)"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: device_handler: alua: Remove a might_sleep() annotation
  scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress
  scsi: iscsi_tcp: Fix UAF during logout when accessing the shost ipaddress
  scsi: ufs: core: Fix devfreq deadlocks
  scsi: hpsa: Fix allocation size for scsi_host_alloc()
  scsi: target: core: Fix warning on RT kernels
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull SCSI fixes from James Bottomley:
 "Six fixes, all in drivers.

  The biggest are the UFS devfreq fixes which address a lock inversion
  and the two iscsi_tcp fixes which try to prevent a use after free from
  userspace still accessing an area which the kernel has released (seen
  by KASAN)"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: device_handler: alua: Remove a might_sleep() annotation
  scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress
  scsi: iscsi_tcp: Fix UAF during logout when accessing the shost ipaddress
  scsi: ufs: core: Fix devfreq deadlocks
  scsi: hpsa: Fix allocation size for scsi_host_alloc()
  scsi: target: core: Fix warning on RT kernels
</pre>
</div>
</content>
</entry>
<entry>
<title>platform/x86: apple-gmux: Add apple_gmux_detect() helper</title>
<updated>2023-01-24T12:41:57+00:00</updated>
<author>
<name>Hans de Goede</name>
<email>hdegoede@redhat.com</email>
</author>
<published>2023-01-24T10:57:53+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=d143908f80f3e5d164ac3342f73d6b9f536e8b4d'/>
<id>d143908f80f3e5d164ac3342f73d6b9f536e8b4d</id>
<content type='text'>
Add a new (static inline) apple_gmux_detect() helper to apple-gmux.h
which can be used for gmux detection instead of apple_gmux_present().

The latter is not really reliable since an ACPI device with a HID
of APP000B is present on some devices without a gmux at all, as well
as on devices with a newer (unsupported) MMIO based gmux model.

This causes apple_gmux_present() to return false-positives on
a number of different Apple laptop models.

This new helper uses the same probing as the actual apple-gmux
driver, so that it does not return false positives.

To avoid code duplication the gmux_probe() function of the actual
driver is also moved over to using the new apple_gmux_detect() helper.

This avoids false positives (vs _HID + IO region detection) on:

MacBookPro5,4
https://pastebin.com/8Xjq7RhS

MacBookPro8,1
https://linux-hardware.org/?probe=e513cfbadb&amp;log=dmesg

MacBookPro9,2
https://bugzilla.kernel.org/attachment.cgi?id=278961

MacBookPro10,2
https://lkml.org/lkml/2014/9/22/657

MacBookPro11,2
https://forums.fedora-fr.org/viewtopic.php?id=70142

MacBookPro11,4
https://raw.githubusercontent.com/im-0/investigate-card-reader-suspend-problem-on-mbp11.4/master/test-16/dmesg

Fixes: 21245df307cb ("ACPI: video: Add Apple GMUX brightness control detection")
Link: https://lore.kernel.org/platform-driver-x86/20230123113750.462144-1-hdegoede@redhat.com/
Reported-by: Emmanouil Kouroupakis &lt;kartebi@gmail.com&gt;
Signed-off-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Link: https://lore.kernel.org/r/20230124105754.62167-3-hdegoede@redhat.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Add a new (static inline) apple_gmux_detect() helper to apple-gmux.h
which can be used for gmux detection instead of apple_gmux_present().

The latter is not really reliable since an ACPI device with a HID
of APP000B is present on some devices without a gmux at all, as well
as on devices with a newer (unsupported) MMIO based gmux model.

This causes apple_gmux_present() to return false-positives on
a number of different Apple laptop models.

This new helper uses the same probing as the actual apple-gmux
driver, so that it does not return false positives.

To avoid code duplication the gmux_probe() function of the actual
driver is also moved over to using the new apple_gmux_detect() helper.

This avoids false positives (vs _HID + IO region detection) on:

MacBookPro5,4
https://pastebin.com/8Xjq7RhS

MacBookPro8,1
https://linux-hardware.org/?probe=e513cfbadb&amp;log=dmesg

MacBookPro9,2
https://bugzilla.kernel.org/attachment.cgi?id=278961

MacBookPro10,2
https://lkml.org/lkml/2014/9/22/657

MacBookPro11,2
https://forums.fedora-fr.org/viewtopic.php?id=70142

MacBookPro11,4
https://raw.githubusercontent.com/im-0/investigate-card-reader-suspend-problem-on-mbp11.4/master/test-16/dmesg

Fixes: 21245df307cb ("ACPI: video: Add Apple GMUX brightness control detection")
Link: https://lore.kernel.org/platform-driver-x86/20230123113750.462144-1-hdegoede@redhat.com/
Reported-by: Emmanouil Kouroupakis &lt;kartebi@gmail.com&gt;
Signed-off-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Link: https://lore.kernel.org/r/20230124105754.62167-3-hdegoede@redhat.com
</pre>
</div>
</content>
</entry>
<entry>
<title>platform/x86: apple-gmux: Move port defines to apple-gmux.h</title>
<updated>2023-01-24T12:41:57+00:00</updated>
<author>
<name>Hans de Goede</name>
<email>hdegoede@redhat.com</email>
</author>
<published>2023-01-24T10:57:52+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=39f5a81f7ad80eb3fbcbfd817c6552db9de5504d'/>
<id>39f5a81f7ad80eb3fbcbfd817c6552db9de5504d</id>
<content type='text'>
This is a preparation patch for adding a new static inline
apple_gmux_detect() helper which actually checks a supported
gmux is present, rather then only checking an ACPI device with
the HID is there as apple_gmux_present() does.

Fixes: 21245df307cb ("ACPI: video: Add Apple GMUX brightness control detection")
Link: https://lore.kernel.org/platform-driver-x86/20230123113750.462144-1-hdegoede@redhat.com/
Reported-by: Emmanouil Kouroupakis &lt;kartebi@gmail.com&gt;
Signed-off-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Link: https://lore.kernel.org/r/20230124105754.62167-2-hdegoede@redhat.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This is a preparation patch for adding a new static inline
apple_gmux_detect() helper which actually checks a supported
gmux is present, rather then only checking an ACPI device with
the HID is there as apple_gmux_present() does.

Fixes: 21245df307cb ("ACPI: video: Add Apple GMUX brightness control detection")
Link: https://lore.kernel.org/platform-driver-x86/20230123113750.462144-1-hdegoede@redhat.com/
Reported-by: Emmanouil Kouroupakis &lt;kartebi@gmail.com&gt;
Signed-off-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Link: https://lore.kernel.org/r/20230124105754.62167-2-hdegoede@redhat.com
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/fb-helper: Use a per-driver FB deferred I/O handler</title>
<updated>2023-01-24T10:13:08+00:00</updated>
<author>
<name>Javier Martinez Canillas</name>
<email>javierm@redhat.com</email>
</author>
<published>2023-01-21T19:24:18+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=d6591da5f3ff284a376d56b5f7a48a34e9cb159d'/>
<id>d6591da5f3ff284a376d56b5f7a48a34e9cb159d</id>
<content type='text'>
The DRM fbdev emulation layer sets the struct fb_info .fbdefio field to
a struct fb_deferred_io pointer, that is shared across all drivers that
use the generic drm_fbdev_generic_setup() helper function.

It is a problem because the fbdev core deferred I/O logic assumes that
the struct fb_deferred_io data is not shared between devices, and it's
stored there state such as the list of pages touched and a mutex that
is use to synchronize between the fb_deferred_io_track_page() function
that track the dirty pages and fb_deferred_io_work() workqueue handler
doing the actual deferred I/O.

The latter can lead to the following error, since it may happen that two
drivers are probed and then one is removed, which causes the mutex bo be
destroyed and not existing anymore by the time the other driver tries to
grab it for the fbdev deferred I/O logic:

[  369.756553] ------------[ cut here ]------------
[  369.756604] DEBUG_LOCKS_WARN_ON(lock-&gt;magic != lock)
[  369.756631] WARNING: CPU: 2 PID: 1023 at kernel/locking/mutex.c:582 __mutex_lock+0x348/0x424
[  369.756744] Modules linked in: nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ip
v6 nf_defrag_ipv4 ip_set nf_tables nfnetlink qrtr btsdio bluetooth sunrpc brcmfmac snd_soc_hdmi_codec cpufreq_dt cfg80211 vfat fat vc4 rfkill brcmutil raspberrypi_cpufreq i2c_bcm2835 iproc_rng200 bcm2711_thermal snd_soc_core snd_pcm_dmaen
gine leds_gpio nvmem_rmem joydev hid_cherry uas usb_storage gpio_raspberrypi_exp v3d snd_pcm raspberrypi_hwmon gpu_sched bcm2835_wdt broadcom bcm_phy_lib snd_timer genet snd mdio_bcm_unimac clk_bcm2711_dvp soundcore drm_display_helper pci
e_brcmstb cec ip6_tables ip_tables fuse
[  369.757400] CPU: 2 PID: 1023 Comm: fbtest Not tainted 5.19.0-rc6+ #94
[  369.757455] Hardware name: raspberrypi,4-model-b Raspberry Pi 4 Model B Rev 1.4/Raspberry Pi 4 Model B Rev 1.4, BIOS 2022.10 10/01/2022
[  369.757538] pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  369.757596] pc : __mutex_lock+0x348/0x424
[  369.757635] lr : __mutex_lock+0x348/0x424
[  369.757672] sp : ffff80000953bb00
[  369.757703] x29: ffff80000953bb00 x28: ffff17fdc087c000 x27: 0000000000000002
[  369.757771] x26: ffff17fdc349f9b0 x25: fffffc5ff72e0100 x24: 0000000000000000
[  369.757838] x23: 0000000000000000 x22: 0000000000000002 x21: ffffa618df636f10
[  369.757903] x20: ffff80000953bb68 x19: ffffa618e0f18138 x18: 0000000000000001
[  369.757968] x17: 0000000020000000 x16: 0000000000000002 x15: 0000000000000000
[  369.758032] x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 5f534b434f4c5f47
[  369.758097] x11: 00000000ffffdfff x10: ffffa618e0c79f88 x9 : ffffa618de472484
[  369.758162] x8 : 000000000002ffe8 x7 : c0000000ffffdfff x6 : 00000000000affa8
[  369.758227] x5 : 0000000000001fff x4 : 0000000000000000 x3 : 0000000000000027
[  369.758292] x2 : 0000000000000001 x1 : ffff17fdc087c000 x0 : 0000000000000028
[  369.758357] Call trace:
[  369.758383]  __mutex_lock+0x348/0x424
[  369.758420]  mutex_lock_nested+0x4c/0x5c
[  369.758459]  fb_deferred_io_mkwrite+0x78/0x1d8
[  369.758507]  do_page_mkwrite+0x5c/0x19c
[  369.758550]  wp_page_shared+0x70/0x1a0
[  369.758590]  do_wp_page+0x3d0/0x510
[  369.758628]  handle_pte_fault+0x1c0/0x1e0
[  369.758670]  __handle_mm_fault+0x250/0x380
[  369.758712]  handle_mm_fault+0x17c/0x3a4
[  369.758753]  do_page_fault+0x158/0x530
[  369.758792]  do_mem_abort+0x50/0xa0
[  369.758831]  el0_da+0x78/0x19c
[  369.758864]  el0t_64_sync_handler+0xbc/0x150
[  369.758904]  el0t_64_sync+0x190/0x194
[  369.758942] irq event stamp: 11395
[  369.758973] hardirqs last  enabled at (11395): [&lt;ffffa618de472554&gt;] __up_console_sem+0x74/0x80
[  369.759042] hardirqs last disabled at (11394): [&lt;ffffa618de47254c&gt;] __up_console_sem+0x6c/0x80
[  369.760554] softirqs last  enabled at (11392): [&lt;ffffa618de330a74&gt;] __do_softirq+0x4c4/0x6b8
[  369.762060] softirqs last disabled at (11383): [&lt;ffffa618de3c9124&gt;] __irq_exit_rcu+0x104/0x214
[  369.763564] ---[ end trace 0000000000000000 ]---

Fixes: d536540f304c ("drm/fb-helper: Add generic fbdev emulation .fb_probe function")
Signed-off-by: Javier Martinez Canillas &lt;javierm@redhat.com&gt;
Reviewed-by: Thomas Zimmermann &lt;tzimmermann@suse.de&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230121192418.2814955-4-javierm@redhat.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The DRM fbdev emulation layer sets the struct fb_info .fbdefio field to
a struct fb_deferred_io pointer, that is shared across all drivers that
use the generic drm_fbdev_generic_setup() helper function.

It is a problem because the fbdev core deferred I/O logic assumes that
the struct fb_deferred_io data is not shared between devices, and it's
stored there state such as the list of pages touched and a mutex that
is use to synchronize between the fb_deferred_io_track_page() function
that track the dirty pages and fb_deferred_io_work() workqueue handler
doing the actual deferred I/O.

The latter can lead to the following error, since it may happen that two
drivers are probed and then one is removed, which causes the mutex bo be
destroyed and not existing anymore by the time the other driver tries to
grab it for the fbdev deferred I/O logic:

[  369.756553] ------------[ cut here ]------------
[  369.756604] DEBUG_LOCKS_WARN_ON(lock-&gt;magic != lock)
[  369.756631] WARNING: CPU: 2 PID: 1023 at kernel/locking/mutex.c:582 __mutex_lock+0x348/0x424
[  369.756744] Modules linked in: nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ip
v6 nf_defrag_ipv4 ip_set nf_tables nfnetlink qrtr btsdio bluetooth sunrpc brcmfmac snd_soc_hdmi_codec cpufreq_dt cfg80211 vfat fat vc4 rfkill brcmutil raspberrypi_cpufreq i2c_bcm2835 iproc_rng200 bcm2711_thermal snd_soc_core snd_pcm_dmaen
gine leds_gpio nvmem_rmem joydev hid_cherry uas usb_storage gpio_raspberrypi_exp v3d snd_pcm raspberrypi_hwmon gpu_sched bcm2835_wdt broadcom bcm_phy_lib snd_timer genet snd mdio_bcm_unimac clk_bcm2711_dvp soundcore drm_display_helper pci
e_brcmstb cec ip6_tables ip_tables fuse
[  369.757400] CPU: 2 PID: 1023 Comm: fbtest Not tainted 5.19.0-rc6+ #94
[  369.757455] Hardware name: raspberrypi,4-model-b Raspberry Pi 4 Model B Rev 1.4/Raspberry Pi 4 Model B Rev 1.4, BIOS 2022.10 10/01/2022
[  369.757538] pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  369.757596] pc : __mutex_lock+0x348/0x424
[  369.757635] lr : __mutex_lock+0x348/0x424
[  369.757672] sp : ffff80000953bb00
[  369.757703] x29: ffff80000953bb00 x28: ffff17fdc087c000 x27: 0000000000000002
[  369.757771] x26: ffff17fdc349f9b0 x25: fffffc5ff72e0100 x24: 0000000000000000
[  369.757838] x23: 0000000000000000 x22: 0000000000000002 x21: ffffa618df636f10
[  369.757903] x20: ffff80000953bb68 x19: ffffa618e0f18138 x18: 0000000000000001
[  369.757968] x17: 0000000020000000 x16: 0000000000000002 x15: 0000000000000000
[  369.758032] x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 5f534b434f4c5f47
[  369.758097] x11: 00000000ffffdfff x10: ffffa618e0c79f88 x9 : ffffa618de472484
[  369.758162] x8 : 000000000002ffe8 x7 : c0000000ffffdfff x6 : 00000000000affa8
[  369.758227] x5 : 0000000000001fff x4 : 0000000000000000 x3 : 0000000000000027
[  369.758292] x2 : 0000000000000001 x1 : ffff17fdc087c000 x0 : 0000000000000028
[  369.758357] Call trace:
[  369.758383]  __mutex_lock+0x348/0x424
[  369.758420]  mutex_lock_nested+0x4c/0x5c
[  369.758459]  fb_deferred_io_mkwrite+0x78/0x1d8
[  369.758507]  do_page_mkwrite+0x5c/0x19c
[  369.758550]  wp_page_shared+0x70/0x1a0
[  369.758590]  do_wp_page+0x3d0/0x510
[  369.758628]  handle_pte_fault+0x1c0/0x1e0
[  369.758670]  __handle_mm_fault+0x250/0x380
[  369.758712]  handle_mm_fault+0x17c/0x3a4
[  369.758753]  do_page_fault+0x158/0x530
[  369.758792]  do_mem_abort+0x50/0xa0
[  369.758831]  el0_da+0x78/0x19c
[  369.758864]  el0t_64_sync_handler+0xbc/0x150
[  369.758904]  el0t_64_sync+0x190/0x194
[  369.758942] irq event stamp: 11395
[  369.758973] hardirqs last  enabled at (11395): [&lt;ffffa618de472554&gt;] __up_console_sem+0x74/0x80
[  369.759042] hardirqs last disabled at (11394): [&lt;ffffa618de47254c&gt;] __up_console_sem+0x6c/0x80
[  369.760554] softirqs last  enabled at (11392): [&lt;ffffa618de330a74&gt;] __do_softirq+0x4c4/0x6b8
[  369.762060] softirqs last disabled at (11383): [&lt;ffffa618de3c9124&gt;] __irq_exit_rcu+0x104/0x214
[  369.763564] ---[ end trace 0000000000000000 ]---

Fixes: d536540f304c ("drm/fb-helper: Add generic fbdev emulation .fb_probe function")
Signed-off-by: Javier Martinez Canillas &lt;javierm@redhat.com&gt;
Reviewed-by: Thomas Zimmermann &lt;tzimmermann@suse.de&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230121192418.2814955-4-javierm@redhat.com
</pre>
</div>
</content>
</entry>
<entry>
<title>netfilter: conntrack: unify established states for SCTP paths</title>
<updated>2023-01-24T08:52:52+00:00</updated>
<author>
<name>Sriram Yagnaraman</name>
<email>sriram.yagnaraman@est.tech</email>
</author>
<published>2023-01-24T01:47:21+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=a44b7651489f26271ac784b70895e8a85d0cebf4'/>
<id>a44b7651489f26271ac784b70895e8a85d0cebf4</id>
<content type='text'>
An SCTP endpoint can start an association through a path and tear it
down over another one. That means the initial path will not see the
shutdown sequence, and the conntrack entry will remain in ESTABLISHED
state for 5 days.

By merging the HEARTBEAT_ACKED and ESTABLISHED states into one
ESTABLISHED state, there remains no difference between a primary or
secondary path. The timeout for the merged ESTABLISHED state is set to
210 seconds (hb_interval * max_path_retrans + rto_max). So, even if a
path doesn't see the shutdown sequence, it will expire in a reasonable
amount of time.

With this change in place, there is now more than one state from which
we can transition to ESTABLISHED, COOKIE_ECHOED and HEARTBEAT_SENT, so
handle the setting of ASSURED bit whenever a state change has happened
and the new state is ESTABLISHED. Removed the check for dir==REPLY since
the transition to ESTABLISHED can happen only in the reply direction.

Fixes: 9fb9cbb1082d ("[NETFILTER]: Add nf_conntrack subsystem.")
Signed-off-by: Sriram Yagnaraman &lt;sriram.yagnaraman@est.tech&gt;
Signed-off-by: Pablo Neira Ayuso &lt;pablo@netfilter.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
An SCTP endpoint can start an association through a path and tear it
down over another one. That means the initial path will not see the
shutdown sequence, and the conntrack entry will remain in ESTABLISHED
state for 5 days.

By merging the HEARTBEAT_ACKED and ESTABLISHED states into one
ESTABLISHED state, there remains no difference between a primary or
secondary path. The timeout for the merged ESTABLISHED state is set to
210 seconds (hb_interval * max_path_retrans + rto_max). So, even if a
path doesn't see the shutdown sequence, it will expire in a reasonable
amount of time.

With this change in place, there is now more than one state from which
we can transition to ESTABLISHED, COOKIE_ECHOED and HEARTBEAT_SENT, so
handle the setting of ASSURED bit whenever a state change has happened
and the new state is ESTABLISHED. Removed the check for dir==REPLY since
the transition to ESTABLISHED can happen only in the reply direction.

Fixes: 9fb9cbb1082d ("[NETFILTER]: Add nf_conntrack subsystem.")
Signed-off-by: Sriram Yagnaraman &lt;sriram.yagnaraman@est.tech&gt;
Signed-off-by: Pablo Neira Ayuso &lt;pablo@netfilter.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Revert "netfilter: conntrack: add sctp DATA_SENT state"</title>
<updated>2023-01-24T08:52:32+00:00</updated>
<author>
<name>Sriram Yagnaraman</name>
<email>sriram.yagnaraman@est.tech</email>
</author>
<published>2023-01-24T01:47:20+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=13bd9b31a969b03c8ec1d4eb0f2b9aebd30ebfd8'/>
<id>13bd9b31a969b03c8ec1d4eb0f2b9aebd30ebfd8</id>
<content type='text'>
This reverts commit (bff3d0534804: "netfilter: conntrack: add sctp
DATA_SENT state")

Using DATA/SACK to detect a new connection on secondary/alternate paths
works only on new connections, while a HEARTBEAT is required on
connection re-use. It is probably consistent to wait for HEARTBEAT to
create a secondary connection in conntrack.

Signed-off-by: Sriram Yagnaraman &lt;sriram.yagnaraman@est.tech&gt;
Signed-off-by: Pablo Neira Ayuso &lt;pablo@netfilter.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This reverts commit (bff3d0534804: "netfilter: conntrack: add sctp
DATA_SENT state")

Using DATA/SACK to detect a new connection on secondary/alternate paths
works only on new connections, while a HEARTBEAT is required on
connection re-use. It is probably consistent to wait for HEARTBEAT to
create a secondary connection in conntrack.

Signed-off-by: Sriram Yagnaraman &lt;sriram.yagnaraman@est.tech&gt;
Signed-off-by: Pablo Neira Ayuso &lt;pablo@netfilter.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
