Commit Graph

1217245 Commits

Author SHA1 Message Date
Sumit Garg
01bbafc63b KEYS: trusted: Remove redundant static calls usage
Static calls invocations aren't well supported from module __init and
__exit functions. Especially the static call from cleanup_trusted() led
to a crash on x86 kernel with CONFIG_DEBUG_VIRTUAL=y.

However, the usage of static call invocations for trusted_key_init()
and trusted_key_exit() don't add any value from either a performance or
security perspective. Hence switch to use indirect function calls instead.

Note here that although it will fix the current crash report, ultimately
the static call infrastructure should be fixed to either support its
future usage from module __init and __exit functions or not.

Reported-and-tested-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Link: https://lore.kernel.org/lkml/ZRhKq6e5nF%2F4ZIV1@fedora/#t
Fixes: 5d0682be31 ("KEYS: trusted: Add generic trusted keys framework")
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2023-10-10 11:19:43 -07:00
Linus Torvalds
87813e13df A set of updates for interrupt chip drivers:
- Fix the fail of the Qualcomm PDC driver on v3.2 hardware which is
     caused by a control bit being moved to a different location
 
   - Update the SM8150 device tree PDC resource so the version register can
     be read
 
   - Make the Renesas RZG2L driver correct for interrupts which are outside
     of the LSB in the TSSR register by using the proper macro for
     calculating the mask
 
   - Document the Renesas RZ2GL device tree binding correctly and update
     them for a few devices which faul to boot otherwise
 
   - Use the proper accessor in the RZ2GL driver instead of blindly
     dereferencing an unchecked pointer
 
   - Make GICv3 handle the dma-non-coherent attribute correctly
 
   - Ensure that all interrupt controller nodes on RISCV are marked as
     initialized correctly
 
 Maintainer changes:
 
   - Add a new entry for GIC interrupt controllers and assign Marc Zyngier
     as the maintainer
 
   - Remove Marc Zyngier from the core and driver maintainer entries as he
     is burried in work and short of time to handle that.
 
     Thanks to Marc for all the great work he has done in the past couple of
     years!
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Merge tag 'irq-urgent-2023-10-10-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fixes from Thomas Gleixner:
 "A set of updates for interrupt chip drivers:

   - Fix the fail of the Qualcomm PDC driver on v3.2 hardware which is
     caused by a control bit being moved to a different location

   - Update the SM8150 device tree PDC resource so the version register
     can be read

   - Make the Renesas RZG2L driver correct for interrupts which are
     outside of the LSB in the TSSR register by using the proper macro
     for calculating the mask

   - Document the Renesas RZ2GL device tree binding correctly and update
     them for a few devices which faul to boot otherwise

   - Use the proper accessor in the RZ2GL driver instead of blindly
     dereferencing an unchecked pointer

   - Make GICv3 handle the dma-non-coherent attribute correctly

   - Ensure that all interrupt controller nodes on RISCV are marked as
     initialized correctly

  Maintainer changes:

   - Add a new entry for GIC interrupt controllers and assign Marc
     Zyngier as the maintainer

   - Remove Marc Zyngier from the core and driver maintainer entries as
     he is burried in work and short of time to handle that.

  Thanks to Marc for all the great work he has done in the past couple
  of years!

  Also note that commit 5873d380f4 ("irqchip/qcom-pdc: Add support for
  v3.2 HW") has a incorrect SOB chain.

  The real author is Neil. His patch was posted by Dmitry once and Neil
  picked it up from the list and reposted it with the bogus SOB chain.

  Not a big deal, but worth to mention. I wanted to fix that up, but
  then got distracted and Marc piled more changes on top. So I decided
  to leave it as is instead of rebasing world"

* tag 'irq-urgent-2023-10-10-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  MAINTAINERS: Remove myself from the general IRQ subsystem maintenance
  MAINTAINERS: Add myself as the ARM GIC maintainer
  irqchip/renesas-rzg2l: Convert to irq_data_get_irq_chip_data()
  irqchip/stm32-exti: add missing DT IRQ flag translation
  irqchip/riscv-intc: Mark all INTC nodes as initialized
  irqchip/gic-v3: Enable non-coherent redistributors/ITSes DT probing
  irqchip/gic-v3-its: Split allocation from initialisation of its_node
  dt-bindings: interrupt-controller: arm,gic-v3: Add dma-noncoherent property
  dt-bindings: interrupt-controller: renesas,irqc: Add r8a779f0 support
  dt-bindings: interrupt-controller: renesas,rzg2l-irqc: Document RZ/G2UL SoC
  irqchip: renesas-rzg2l: Fix logic to clear TINT interrupt source
  dt-bindings: interrupt-controller: renesas,rzg2l-irqc: Update description for '#interrupt-cells' property
  arm64: dts: qcom: sm8150: extend the size of the PDC resource
  irqchip/qcom-pdc: Add support for v3.2 HW
2023-10-10 11:14:07 -07:00
Linus Torvalds
b711538a40 hyperv-fixes for v6.6-rc6
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Merge tag 'hyperv-fixes-signed-20231009' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull hyperv fixes from Wei Liu:

 - fixes for Hyper-V VTL code (Saurabh Sengar and Olaf Hering)

 - fix hv_kvp_daemon to support keyfile based connection profile
   (Shradha Gupta)

* tag 'hyperv-fixes-signed-20231009' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  hv/hv_kvp_daemon:Support for keyfile based connection profile
  hyperv: reduce size of ms_hyperv_info
  x86/hyperv: Add common print prefix "Hyper-V" in hv_init
  x86/hyperv: Remove hv_vtl_early_init initcall
  x86/hyperv: Restrict get_vtl to only VTL platforms
2023-10-10 11:01:21 -07:00
Linus Torvalds
832b5d0bf9 This push fixes a 6.5 regression in dm-crypt.
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Merge tag 'v6.6-p4' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto fix from Herbert Xu:
 "Fix a regression in dm-crypt"

* tag 'v6.6-p4' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  dm crypt: Fix reqsize in crypt_iv_eboiv_gen
2023-10-10 10:47:35 -07:00
Linus Torvalds
68d187ec14 sound fixes for 6.6-rc6
Here is the collection of pending fixes since a couple of weeks ago,
 which became slightly bigger than usual due to my vacation.
 Most of changes are about ASoC device-specific fixes while USB- and
 HD-audio received quirks as usual.  All fixes, including two ASoC core
 changes, are reasonably small and safe to apply.
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Merge tag 'sound-6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of pending fixes since a couple of weeks ago, which
  became slightly bigger than usual due to my vacation.

  Most of changes are about ASoC device-specific fixes while USB- and
  HD-audio received quirks as usual. All fixes, including two ASoC core
  changes, are reasonably small and safe to apply"

* tag 'sound-6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (23 commits)
  ALSA: usb-audio: Fix microphone sound on Nexigo webcam.
  ALSA: hda/realtek: Change model for Intel RVP board
  ALSA: usb-audio: Fix microphone sound on Opencomm2 Headset
  ALSA: hda: cs35l41: Cleanup and fix double free in firmware request
  ASoC: dt-bindings: fsl,micfil: Document #sound-dai-cells
  ASoC: amd: yc: Fix non-functional mic on Lenovo 82YM
  ASoC: tlv320adc3xxx: BUG: Correct micbias setting
  ASoC: rt5682: Fix regulator enable/disable sequence
  ASoC: hdmi-codec: Fix broken channel map reporting
  ASoC: core: Do not call link_exit() on uninitialized rtd objects
  ASoC: core: Print component name when printing log
  ASoC: SOF: amd: fix for firmware reload failure after playback
  ASoC: fsl-asoc-card: use integer type for fll_id and pll_id
  ASoC: fsl_sai: Don't disable bitclock for i.MX8MP
  dt-bindings: ASoC: rockchip: Add compatible for RK3128 spdif
  ASoC: soc-generic-dmaengine-pcm: Fix function name in comment
  ALSA: hda/realtek - ALC287 merge RTK codec with CS CS35L41 AMP
  ASoC: simple-card: fixup asoc_simple_probe() error handling
  ASoC: simple-card-utils: fixup simple_util_startup() error handling
  ASoC: Intel: sof_sdw: add support for SKU 0B14
  ...
2023-10-10 10:33:21 -07:00
Krzysztof Kozlowski
7b695ef669 dt-bindings: iio: add missing reset-gpios constrain
The Documentation/devicetree/bindings/gpio/gpio-consumer-common.yaml
schema does not enforce number of reset GPIOs, thus each device binding
must do it.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20231005083650.92222-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-10-10 17:28:36 +01:00
Martin Wilck
4ae55a7dce nvme-auth: use chap->s2 to indicate bidirectional authentication
Commit 546dea18c9 ("nvme-auth: check chap ctrl_key once constructed")
replaced the condition "if (ctrl->ctrl_key)" (indicating bidirectional
auth) by "if (chap->ctrl_key)", because ctrl->ctrl_key is a resource shared
with sysfs. But chap->ctrl_key is set in
nvme_auth_process_dhchap_challenge() depending on the DHVLEN in the
DH-HMAC-CHAP Challenge message received from the controller, and will thus
be non-NULL for every DH-HMAC-CHAP exchange, even if unidirectional auth
was requested. This will lead to a protocol violation by sending a Success2
message in the unidirectional case (per NVMe base spec 2.0, the
authentication transaction ends after the Success1 message for
unidirectional auth). Use chap->s2 instead, which is non-zero if and only
if the host requested bi-directional authentication from the controller.

Fixes: 546dea18c9 ("nvme-auth: check chap ctrl_key once constructed")
Signed-off-by: Martin Wilck <mwilck@suse.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
2023-10-10 08:06:06 -07:00
Sagi Grimberg
d920abd1e7 nvmet-tcp: Fix a possible UAF in queue intialization setup
From Alon:
"Due to a logical bug in the NVMe-oF/TCP subsystem in the Linux kernel,
a malicious user can cause a UAF and a double free, which may lead to
RCE (may also lead to an LPE in case the attacker already has local
privileges)."

Hence, when a queue initialization fails after the ahash requests are
allocated, it is guaranteed that the queue removal async work will be
called, hence leave the deallocation to the queue removal.

Also, be extra careful not to continue processing the socket, so set
queue rcv_state to NVMET_TCP_RECV_ERR upon a socket error.

Cc: stable@vger.kernel.org
Reported-by: Alon Zahavi <zahavi.alon@gmail.com>
Tested-by: Alon Zahavi <zahavi.alon@gmail.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
2023-10-10 08:03:22 -07:00
David Sterba
54f67decdd Revert "btrfs: reject unknown mount options early"
This reverts commit 5f521494cc.

The patch breaks mounts with security mount options like

  $ mount -o context=system_u:object_r:root_t:s0 /dev/sdX /mn
  mount: /mnt: wrong fs type, bad option, bad superblock on /dev/sdX, missing codepage or helper program, ...

We cannot reject all unknown options in btrfs_parse_subvol_options() as
intended, the security options can be present at this point and it's not
possible to enumerate them in a future proof way. This means unknown
mount options are silently accepted like before when the filesystem is
mounted with either -o subvol=/path or as followup mounts of the same
device.

Reported-by: Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com
Signed-off-by: David Sterba <dsterba@suse.com>
2023-10-10 15:27:56 +02:00
Will Mortensen
da6192ca72 net/mlx5e: Again mutually exclude RX-FCS and RX-port-timestamp
Commit 1e66220948 ("net/mlx5e: Update rx ring hw mtu upon each rx-fcs
flag change") seems to have accidentally inverted the logic added in
commit 0bc73ad46a ("net/mlx5e: Mutually exclude RX-FCS and
RX-port-timestamp").

The impact of this is a little unclear since it seems the FCS scattered
with RX-FCS is (usually?) correct regardless.

Fixes: 1e66220948 ("net/mlx5e: Update rx ring hw mtu upon each rx-fcs flag change")
Tested-by: Charlotte Tan <charlotte@extrahop.com>
Reviewed-by: Charlotte Tan <charlotte@extrahop.com>
Cc: Adham Faris <afaris@nvidia.com>
Cc: Aya Levin <ayal@nvidia.com>
Cc: Tariq Toukan <tariqt@nvidia.com>
Cc: Moshe Shemesh <moshe@nvidia.com>
Cc: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Will Mortensen <will@extrahop.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://lore.kernel.org/r/20231006053706.514618-1-will@extrahop.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-10-10 15:22:25 +02:00
Simon Ser
2b7947bd32 drm/atomic-helper: relax unregistered connector check
The driver might pull connectors which weren't submitted by
user-space into the atomic state. For instance,
intel_dp_mst_atomic_master_trans_check() pulls in connectors
sharing the same DP-MST stream. However, if the connector is
unregistered, this later fails with:

    [  559.425658] i915 0000:00:02.0: [drm:drm_atomic_helper_check_modeset] [CONNECTOR:378:DP-7] is not registered

Skip the unregistered connector check to allow user-space to turn
off connectors one-by-one.

See this wlroots issue:
https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3407

Previous discussion:
https://lore.kernel.org/intel-gfx/Y6GX7z17WmDSKwta@ideak-desk.fi.intel.com/

Signed-off-by: Simon Ser <contact@emersion.fr>
Cc: stable@vger.kernel.org
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231005131623.114379-1-contact@emersion.fr
2023-10-10 14:56:09 +02:00
Charles Keepax
99d426c6dd
ASoC: cs42l43: Update values for bias sense
Due to an error in the datasheet the bias sense values currently don't
match the hardware. Whilst this is a change to the binding no devices
have yet shipped so updating the binding will not cause any issues.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20231010102425.3662364-2-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-10 12:50:40 +01:00
Charles Keepax
53ba32acb5
ASoC: dt-bindings: cirrus,cs42l43: Update values for bias sense
Due to an error in the datasheet the bias sense values currently don't
match the hardware. Whilst this is a change to the binding no devices
have yet shipped so updating the binding will not cause any issues.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20231010102425.3662364-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-10 12:50:39 +01:00
Christophe Leroy
8e8a12ecbc powerpc/85xx: Fix math emulation exception
Booting mpc85xx_defconfig kernel on QEMU leads to:

Bad trap at PC: fe9bab0, SR: 2d000, vector=800
awk[82]: unhandled trap (5) at 0 nip fe9bab0 lr fe9e01c code 5 in libc-2.27.so[fe5a000+17a000]
awk[82]: code: 3aa00000 3a800010 4bffe03c 9421fff0 7ca62b78 38a00000 93c10008 83c10008
awk[82]: code: 38210010 4bffdec8 9421ffc0 7c0802a6 <fc00048e> d8010008 4815190d 93810030
Trace/breakpoint trap
WARNING: no useful console

This is because allthough CONFIG_MATH_EMULATION is selected,
Exception 800 calls unknown_exception().

Call emulation_assist_interrupt() instead.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/066caa6d9480365da9b8ed83692d7101e10ac5f8.1695657339.git.christophe.leroy@csgroup.eu
2023-10-10 21:32:40 +11:00
Gerd Bayer
a72178cfe8 net/smc: Fix dependency of SMC on ISM
When the SMC protocol is built into the kernel proper while ISM is
configured to be built as module, linking the kernel fails due to
unresolved dependencies out of net/smc/smc_ism.o to
ism_get_smcd_ops, ism_register_client, and ism_unregister_client
as reported via the linux-next test automation (see link).
This however is a bug introduced a while ago.

Correct the dependency list in ISM's and SMC's Kconfig to reflect the
dependencies that are actually inverted. With this you cannot build a
kernel with CONFIG_SMC=y and CONFIG_ISM=m. Either ISM needs to be 'y',
too - or a 'n'. That way, SMC can still be configured on non-s390
architectures that do not have (nor need) an ISM driver.

Fixes: 89e7d2ba61 ("net/ism: Add new API for client registration")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Closes: https://lore.kernel.org/linux-next/d53b5b50-d894-4df8-8969-fd39e63440ae@infradead.org/
Co-developed-by: Wenjia Zhang <wenjia@linux.ibm.com>
Signed-off-by: Wenjia Zhang <wenjia@linux.ibm.com>
Signed-off-by: Gerd Bayer <gbayer@linux.ibm.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org> # build-tested
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Link: https://lore.kernel.org/r/20231006125847.1517840-1-gbayer@linux.ibm.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-10-10 11:51:41 +02:00
Dan Carpenter
7b5add9af5 ixgbe: fix crash with empty VF macvlan list
The adapter->vf_mvs.l list needs to be initialized even if the list is
empty.  Otherwise it will lead to crashes.

Fixes: a1cbb15c13 ("ixgbe: Add macvlan support for VF")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Link: https://lore.kernel.org/r/ZSADNdIw8zFx1xw2@kadam
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-10-10 11:31:50 +02:00
Ruihai Zhou
258dd5e6e6 drm/panel: boe-tv101wum-nl6: Completely pull GPW to VGL before TP term
The sta_himax83102 panel sometimes shows abnormally flickering
horizontal lines. The front gate output will precharge the X point of
the next pole circuit before TP(TouchPanel Enable) term starts, and wait
until the end of the TP term to resume the CLK. For this reason, the X
point must be maintained during the TP term. In abnormal case, we
measured a slight leakage at point X. This because during the TP term,
the GPW does not fully pull the VGL low, causing the TFT to not be
closed tightly.

To fix this, we completely pull GPW to VGL before entering the TP term.
This will ensure that the TFT is closed tightly and prevent the abnormal
display.

Fixes: 1bc2ef065f ("drm/panel: Support for Starry-himax83102-j02 TDDI MIPI-DSI panel")
Signed-off-by: Ruihai Zhou <zhouruihai@huaqin.corp-partner.google.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20231007064949.22668-1-zhouruihai@huaqin.corp-partner.google.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231007064949.22668-1-zhouruihai@huaqin.corp-partner.google.com
2023-10-10 10:38:17 +02:00
Paolo Abeni
1b9d8bc14d Merge branch 'add-update_pn-flag'
Radu Pirea says:

====================
Add update_pn flag

Patches extracted from
https://lore.kernel.org/all/20230928084430.1882670-1-radu-nicolae.pirea@oss.nxp.com/
Update_pn flag will let the offloaded MACsec implementations to know when
the PN is updated.
====================

Link: https://lore.kernel.org/r/20231005180636.672791-1-radu-nicolae.pirea@oss.nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-10-10 10:30:33 +02:00
Radu Pirea (NXP OSS)
fde2f2d7f2 net/mlx5e: macsec: use update_pn flag instead of PN comparation
When updating the SA, use the new update_pn flags instead of comparing the
new PN with the initial one.

Comparing the initial PN value with the new value will allow the user
to update the SA using the initial PN value as a parameter like this:
$ ip macsec add macsec0 tx sa 0 pn 1 on key 00 \
ead3664f508eb06c40ac7104cdae4ce5
$ ip macsec set macsec0 tx sa 0 pn 1 off

Fixes: 8ff0ac5be1 ("net/mlx5: Add MACsec offload Tx command support")
Fixes: aae3454e4d ("net/mlx5e: Add MACsec offload Rx command support")
Signed-off-by: Radu Pirea (NXP OSS) <radu-nicolae.pirea@oss.nxp.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-10-10 10:30:31 +02:00
Radu Pirea (NXP OSS)
e0a8c918da net: phy: mscc: macsec: reject PN update requests
Updating the PN is not supported.
Return -EINVAL if update_pn is true.

The following command succeeded, but it should fail because the driver
does not update the PN:
ip macsec set macsec0 tx sa 0 pn 232 on

Fixes: 28c5107aa9 ("net: phy: mscc: macsec support")
Signed-off-by: Radu Pirea (NXP OSS) <radu-nicolae.pirea@oss.nxp.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-10-10 10:30:31 +02:00
Radu Pirea (NXP OSS)
4dcf38ae3c octeontx2-pf: mcs: update PN only when update_pn is true
When updating SA, update the PN only when the update_pn flag is true.
Otherwise, the PN will be reset to its previous value using the
following command and this should not happen:
$ ip macsec set macsec0 tx sa 0 on

Fixes: c54ffc7360 ("octeontx2-pf: mcs: Introduce MACSEC hardware offloading")
Signed-off-by: Radu Pirea (NXP OSS) <radu-nicolae.pirea@oss.nxp.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-10-10 10:30:31 +02:00
Radu Pirea (NXP OSS)
0412cc846a net: macsec: indicate next pn update when offloading
Indicate next PN update using update_pn flag in macsec_context.
Offloaded MACsec implementations does not know whether or not the
MACSEC_SA_ATTR_PN attribute was passed for an SA update and assume
that next PN should always updated, but this is not always true.

The PN can be reset to its initial value using the following command:
$ ip macsec set macsec0 tx sa 0 off #octeontx2-pf case

Or, the update PN command will succeed even if the driver does not support
PN updates.
$ ip macsec set macsec0 tx sa 0 pn 1 on #mscc phy driver case

Comparing the initial PN with the new PN value is not a solution. When
the user updates the PN using its initial value the command will
succeed, even if the driver does not support it. Like this:
$ ip macsec add macsec0 tx sa 0 pn 1 on key 00 \
ead3664f508eb06c40ac7104cdae4ce5
$ ip macsec set macsec0 tx sa 0 pn 1 on #mlx5 case

Signed-off-by: Radu Pirea (NXP OSS) <radu-nicolae.pirea@oss.nxp.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-10-10 10:30:30 +02:00
Ma Ke
513f61e219 net: ipv4: fix return value check in esp_remove_trailer
In esp_remove_trailer(), to avoid an unexpected result returned by
pskb_trim, we should check the return value of pskb_trim().

Signed-off-by: Ma Ke <make_ruc2021@163.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2023-10-10 09:55:35 +02:00
Ma Ke
dad4e491e3 net: ipv6: fix return value check in esp_remove_trailer
In esp_remove_trailer(), to avoid an unexpected result returned by
pskb_trim, we should check the return value of pskb_trim().

Signed-off-by: Ma Ke <make_ruc2021@163.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2023-10-10 09:55:35 +02:00
Damien Le Moal
626b13f015 scsi: Do not rescan devices with a suspended queue
Commit ff48b37802 ("scsi: Do not attempt to rescan suspended devices")
modified scsi_rescan_device() to avoid attempting rescanning a suspended
device. However, the modification added a check to verify that a SCSI
device is in the running state without checking if the device request
queue (in the case of block device) is also running, thus allowing the
exectuion of internal requests. Without checking the device request
queue, commit ff48b37802 fix is incomplete and deadlocks on resume can
still happen. Use blk_queue_pm_only() to check if the device request
queue allows executing commands in addition to checking the SCSI device
state.

Reported-by: Petr Tesarik <petr@tesarici.cz>
Fixes: ff48b37802 ("scsi: Do not attempt to rescan suspended devices")
Cc: stable@vger.kernel.org
Tested-by: Petr Tesarik <petr@tesarici.cz>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
2023-10-10 14:42:22 +09:00
Ondrej Zary
0c1e81d0b5 ata: pata_parport: fit3: implement IDE command set registers
fit3 protocol driver does not support accessing IDE control registers
(device control/altstatus). The DOS driver does not use these registers
either (as observed from DOSEMU trace). But the HW seems to be capable
of accessing these registers - I simply tried bit 3 and it works!

The control register is required to properly reset ATAPI devices or
they will be detected only once (after a power cycle).

Tested with EXP Computer CD-865 with MC-1285B EPP cable and
TransDisk 3000.

Signed-off-by: Ondrej Zary <linux@zary.sk>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
2023-10-10 14:42:22 +09:00
Ondrej Zary
f343e578fe ata: pata_parport: add custom version of wait_after_reset
Some parallel adapters (e.g. EXP Computer MC-1285B EPP Cable) return
bogus values when there's no master device present. This can cause
reset to fail, preventing the lone slave device (such as EXP Computer
CD-865) from working.

Add custom version of wait_after_reset that ignores master failure when
a slave device is present. The custom version is also needed because
the generic ata_sff_wait_after_reset uses direct port I/O for slave
device detection.

Signed-off-by: Ondrej Zary <linux@zary.sk>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
2023-10-10 14:42:22 +09:00
Ondrej Zary
d2302427c1 ata: pata_parport: implement set_devctl
Add missing ops->sff_set_devctl implementation.

Fixes: 246a1c4c6b ("ata: pata_parport: add driver (PARIDE replacement)")
Cc: stable@vger.kernel.org
Signed-off-by: Ondrej Zary <linux@zary.sk>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
2023-10-10 14:42:22 +09:00
Ondrej Zary
b555aa6676 ata: pata_parport: fix pata_parport_devchk
There's a 'x' missing in 0x55 in pata_parport_devchk(), causing the
detection to always fail. Fix it.

Fixes: 246a1c4c6b ("ata: pata_parport: add driver (PARIDE replacement)")
Cc: stable@vger.kernel.org
Signed-off-by: Ondrej Zary <linux@zary.sk>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
2023-10-10 14:42:22 +09:00
Shradha Gupta
42999c9046 hv/hv_kvp_daemon:Support for keyfile based connection profile
Ifcfg config file support in NetworkManger is deprecated. This patch
provides support for the new keyfile config format for connection
profiles in NetworkManager. The patch modifies the hv_kvp_daemon code
to generate the new network configuration in keyfile
format(.ini-style format) along with a ifcfg format configuration.
The ifcfg format configuration is also retained to support easy
backward compatibility for distro vendors. These configurations are
stored in temp files which are further translated using the
hv_set_ifconfig.sh script. This script is implemented by individual
distros based on the network management commands supported.
For example, RHEL's implementation could be found here:
https://gitlab.com/redhat/centos-stream/src/hyperv-daemons/-/blob/c9s/hv_set_ifconfig.sh
Debian's implementation could be found here:
https://github.com/endlessm/linux/blob/master/debian/cloud-tools/hv_set_ifconfig

The next part of this support is to let the Distro vendors consume
these modified implementations to the new configuration format.

Tested-on: Rhel9(Hyper-V, Azure)(nm and ifcfg files verified)
Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com>
Reviewed-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Reviewed-by: Ani Sinha <anisinha@redhat.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Link: https://lore.kernel.org/r/1696847920-31125-1-git-send-email-shradhagupta@linux.microsoft.com
2023-10-10 03:42:29 +00:00
Eric Dumazet
26c29961b1 net: refine debug info in skb_checksum_help()
syzbot uses panic_on_warn.

This means that the skb_dump() I added in the blamed commit are
not even called.

Rewrite this so that we get the needed skb dump before syzbot crashes.

Fixes: eeee4b77dc ("net: add more debug info in skb_checksum_help()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20231006173355.2254983-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-09 19:46:41 -07:00
Hao Ge
1558b1a8dd firmware/imx-dsp: Fix use_after_free in imx_dsp_setup_channels()
dsp_chan->name and chan_name points to same block of memory,
because dev_err still needs to be used it,so we need free
it's memory after use to avoid use_after_free.

Fixes: e527adfb9b ("firmware: imx-dsp: Fix an error handling path in imx_dsp_setup_channels()")
Signed-off-by: Hao Ge <gehao@kylinos.cn>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2023-10-10 10:30:29 +08:00
Peter Wang
a20c4350c6 scsi: ufs: core: Correct clear TM error log
The clear TM function error log status was inverted.

Fixes: 4693fad7d6 ("scsi: ufs: core: Log error handler activity")
Signed-off-by: Peter Wang <peter.wang@mediatek.com>
Link: https://lore.kernel.org/r/20231003022002.25578-1-peter.wang@mediatek.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-10-09 21:33:30 -04:00
Icenowy Zheng
3806a8c647 drm/amdgpu: fix SI failure due to doorbells allocation
SI hardware does not have doorbells at all, however currently the code
will try to do the allocation and thus fail, makes SI AMDGPU not usable.

Fix this failure by skipping doorbells allocation when doorbells count
is zero.

Fixes: 54c30d2a8d ("drm/amdgpu: create kernel doorbell pages")
Reviewed-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-10-09 17:59:29 -04:00
Christian König
ff89f064dc drm/amdgpu: add missing NULL check
bo->tbo.resource can easily be NULL here.

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2902
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
CC: stable@vger.kernel.org
2023-10-09 17:59:29 -04:00
Daniel Miess
23645bca98 drm/amd/display: Don't set dpms_off for seamless boot
[Why]
eDPs fail to light up with seamless boot enabled

[How]
When seamless boot is enabled don't configure dpms_off
in disable_vbios_mode_if_required.

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Daniel Miess <daniel.miess@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-10-09 17:59:29 -04:00
David Vernet
57ddeb86b3 selftests/bpf: Add testcase for async callback return value failure
A previous commit updated the verifier to print an accurate failure
message for when someone specifies a nonzero return value from an async
callback. This adds a testcase for validating that the verifier emits
the correct message in such a case.

Signed-off-by: David Vernet <void@manifault.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20231009161414.235829-2-void@manifault.com
2023-10-09 23:11:17 +02:00
David Vernet
829955981c bpf: Fix verifier log for async callback return values
The verifier, as part of check_return_code(), verifies that async
callbacks such as from e.g. timers, will return 0. It does this by
correctly checking that R0->var_off is in tnum_const(0), which
effectively checks that it's in a range of 0. If this condition fails,
however, it prints an error message which says that the value should
have been in (0x0; 0x1). This results in possibly confusing output such
as the following in which an async callback returns 1:

  At async callback the register R0 has value (0x1; 0x0) should have been in (0x0; 0x1)

The fix is easy -- we should just pass the tnum_const(0) as the correct
range to verbose_invalid_scalar(), which will then print the following:

  At async callback the register R0 has value (0x1; 0x0) should have been in (0x0; 0x0)

Fixes: bfc6bb74e4 ("bpf: Implement verifier support for validation of async callbacks.")
Signed-off-by: David Vernet <void@manifault.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20231009161414.235829-1-void@manifault.com
2023-10-09 23:10:58 +02:00
Zack Rusin
91398b413d drm/vmwgfx: Keep a gem reference to user bos in surfaces
Surfaces can be backed (i.e. stored in) memory objects (mob's) which
are created and managed by the userspace as GEM buffers. Surfaces
grab only a ttm reference which means that the gem object can
be deleted underneath us, especially in cases where prime buffer
export is used.

Make sure that all userspace surfaces which are backed by gem objects
hold a gem reference to make sure they're not deleted before vmw
surfaces are done with them, which fixes:
------------[ cut here ]------------
refcount_t: underflow; use-after-free.
WARNING: CPU: 2 PID: 2632 at lib/refcount.c:28 refcount_warn_saturate+0xfb/0x150
Modules linked in: overlay vsock_loopback vmw_vsock_virtio_transport_common vmw_vsock_vmci_transport vsock snd_ens1371 snd_ac97_codec ac97_bus snd_pcm gameport>
CPU: 2 PID: 2632 Comm: vmw_ref_count Not tainted 6.5.0-rc2-vmwgfx #1
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020
RIP: 0010:refcount_warn_saturate+0xfb/0x150
Code: eb 9e 0f b6 1d 8b 5b a6 01 80 fb 01 0f 87 ba e4 80 00 83 e3 01 75 89 48 c7 c7 c0 3c f9 a3 c6 05 6f 5b a6 01 01 e8 15 81 98 ff <0f> 0b e9 6f ff ff ff 0f b>
RSP: 0018:ffffbdc34344bba0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000027
RDX: ffff960475ea1548 RSI: 0000000000000001 RDI: ffff960475ea1540
RBP: ffffbdc34344bba8 R08: 0000000000000003 R09: 65646e75203a745f
R10: ffffffffa5b32b20 R11: 72657466612d6573 R12: ffff96037d6a6400
R13: ffff9603484805b0 R14: 000000000000000b R15: ffff9603bed06060
FS:  00007f5fd8520c40(0000) GS:ffff960475e80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5fda755000 CR3: 000000010d012005 CR4: 00000000003706e0
Call Trace:
 <TASK>
 ? show_regs+0x6e/0x80
 ? refcount_warn_saturate+0xfb/0x150
 ? __warn+0x91/0x150
 ? refcount_warn_saturate+0xfb/0x150
 ? report_bug+0x19d/0x1b0
 ? handle_bug+0x46/0x80
 ? exc_invalid_op+0x1d/0x80
 ? asm_exc_invalid_op+0x1f/0x30
 ? refcount_warn_saturate+0xfb/0x150
 drm_gem_object_handle_put_unlocked+0xba/0x110 [drm]
 drm_gem_object_release_handle+0x6e/0x80 [drm]
 drm_gem_handle_delete+0x6a/0xc0 [drm]
 ? __pfx_vmw_bo_unref_ioctl+0x10/0x10 [vmwgfx]
 vmw_bo_unref_ioctl+0x33/0x40 [vmwgfx]
 drm_ioctl_kernel+0xbc/0x160 [drm]
 drm_ioctl+0x2d2/0x580 [drm]
 ? __pfx_vmw_bo_unref_ioctl+0x10/0x10 [vmwgfx]
 ? do_vmi_munmap+0xee/0x180
 vmw_generic_ioctl+0xbd/0x180 [vmwgfx]
 vmw_unlocked_ioctl+0x19/0x20 [vmwgfx]
 __x64_sys_ioctl+0x99/0xd0
 do_syscall_64+0x5d/0x90
 ? syscall_exit_to_user_mode+0x2a/0x50
 ? do_syscall_64+0x6d/0x90
 ? handle_mm_fault+0x16e/0x2f0
 ? exit_to_user_mode_prepare+0x34/0x170
 ? irqentry_exit_to_user_mode+0xd/0x20
 ? irqentry_exit+0x3f/0x50
 ? exc_page_fault+0x8e/0x190
 entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f5fda51aaff
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <41> 89 c0 3d 00 f0 ff ff 7>
RSP: 002b:00007ffd536a4d30 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffd536a4de0 RCX: 00007f5fda51aaff
RDX: 00007ffd536a4de0 RSI: 0000000040086442 RDI: 0000000000000003
RBP: 0000000040086442 R08: 000055fa603ada50 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 00007ffd536a51b8
R13: 0000000000000003 R14: 000055fa5ebb4c80 R15: 00007f5fda90f040
 </TASK>
---[ end trace 0000000000000000 ]---

A lot of the analyis on the bug was done by Murray McAllister and
Ian Forbes.

Reported-by: Murray McAllister <murray.mcallister@gmail.com>
Cc: Ian Forbes <iforbes@vmware.com>
Signed-off-by: Zack Rusin <zackr@vmware.com>
Fixes: a950b989ea ("drm/vmwgfx: Do not drop the reference to the handle too soon")
Cc: <stable@vger.kernel.org> # v6.2+
Reviewed-by: Martin Krastev <krastevm@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230928041355.737635-1-zack@kde.org
2023-10-09 15:53:30 -04:00
Konstantin Meskhidze
39465cac28 drm/vmwgfx: fix typo of sizeof argument
Since size of 'header' pointer and '*header' structure is equal on 64-bit
machines issue probably didn't cause any wrong behavior. But anyway,
fixing typo is required.

Fixes: 7a73ba7469 ("drm/vmwgfx: Use TTM handles instead of SIDs as user-space surface handles.")
Co-developed-by: Ivanov Mikhail <ivanov.mikhail1@huawei-partners.com>
Signed-off-by: Konstantin Meskhidze <konstantin.meskhidze@huawei.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>
Signed-off-by: Zack Rusin <zackr@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230905100203.1716731-1-konstantin.meskhidze@huawei.com
2023-10-09 15:53:10 -04:00
Richard Fitzgerald
1bba0badff
ASoC: cs35l56: ASP1 DOUT must default to Hi-Z when not transmitting
The ASP1 DOUT line must be defaulted to be high-impedance when
it is not actually transmitting data for an active channel.

In non-SoundWire modes ASP1 will usually be shared by multiple
amps so each amp must only drive the line during the slot for
an enabled TX channel.

In SoundWire mode a custom firmware can use ASP1 as a secondary
chip-to-chip audio link or as GPIO. It should be defaulted to
high-impedance since by default the purpose of this pin is not
known.

Backport note:
On kernel versions before 6.6 the cs35l56->base.regmap argument
to regmap_set_bits() must be changed to cs35l56->regmap.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: e496112529 ("ASoC: cs35l56: Add driver for Cirrus Logic CS35L56")
Link: https://lore.kernel.org/r/20231009153412.30380-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-09 18:40:28 +01:00
Mark Brown
cc660a4a8e
ASoC: codecs: fix widget name comparisons
Merge series from Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>:

Some codec drivers compare widget names with strcmp, ignoring the component
name prefix.  If prefix is used, the comparisons start failing.
Add a helper to fix the issue.
2023-10-09 18:40:09 +01:00
Mark Brown
e182212185
ASoC: codecs: wcd938x: fix probe and bind error
Merge series from Johan Hovold <johan+linaro@kernel.org>:

The wcd938x codec driver happily ignores error handling, something which
has bitten us in the past when we hit a probe deferral:

	https://lore.kernel.org/lkml/20230705123018.30903-1-johan+linaro@kernel.org/

Fix up the remaining probe and component bind paths that left resources
allocated and registered after errors to avoid similar future issues.
2023-10-09 18:40:01 +01:00
Michal Koutný
1ca0b60515 cgroup: Remove duplicates in cgroup v1 tasks file
One PID may appear multiple times in a preloaded pidlist.
(Possibly due to PID recycling but we have reports of the same
task_struct appearing with different PIDs, thus possibly involving
transfer of PID via de_thread().)

Because v1 seq_file iterator uses PIDs as position, it leads to
a message:
> seq_file: buggy .next function kernfs_seq_next did not update position index

Conservative and quick fix consists of removing duplicates from `tasks`
file (as opposed to removing pidlists altogether). It doesn't affect
correctness (it's sufficient to show a PID once), performance impact
would be hidden by unconditional sorting of the pidlist already in place
(asymptotically).

Link: https://lore.kernel.org/r/20230823174804.23632-1-mkoutny@suse.com/
Suggested-by: Firo Yang <firo.yang@suse.com>
Signed-off-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
2023-10-09 06:42:05 -10:00
Andrew Kanner
a12bbb3ccc xdp: Fix zero-size allocation warning in xskq_create()
Syzkaller reported the following issue:

  ------------[ cut here ]------------
  WARNING: CPU: 0 PID: 2807 at mm/vmalloc.c:3247 __vmalloc_node_range (mm/vmalloc.c:3361)
  Modules linked in:
  CPU: 0 PID: 2807 Comm: repro Not tainted 6.6.0-rc2+ #12
  Hardware name: Generic DT based system
  unwind_backtrace from show_stack (arch/arm/kernel/traps.c:258)
  show_stack from dump_stack_lvl (lib/dump_stack.c:107 (discriminator 1))
  dump_stack_lvl from __warn (kernel/panic.c:633 kernel/panic.c:680)
  __warn from warn_slowpath_fmt (./include/linux/context_tracking.h:153 kernel/panic.c:700)
  warn_slowpath_fmt from __vmalloc_node_range (mm/vmalloc.c:3361 (discriminator 3))
  __vmalloc_node_range from vmalloc_user (mm/vmalloc.c:3478)
  vmalloc_user from xskq_create (net/xdp/xsk_queue.c:40)
  xskq_create from xsk_setsockopt (net/xdp/xsk.c:953 net/xdp/xsk.c:1286)
  xsk_setsockopt from __sys_setsockopt (net/socket.c:2308)
  __sys_setsockopt from ret_fast_syscall (arch/arm/kernel/entry-common.S:68)

xskq_get_ring_size() uses struct_size() macro to safely calculate the
size of struct xsk_queue and q->nentries of desc members. But the
syzkaller repro was able to set q->nentries with the value initially
taken from copy_from_sockptr() high enough to return SIZE_MAX by
struct_size(). The next PAGE_ALIGN(size) is such case will overflow
the size_t value and set it to 0. This will trigger WARN_ON_ONCE in
vmalloc_user() -> __vmalloc_node_range().

The issue is reproducible on 32-bit arm kernel.

Fixes: 9f78bf330a ("xsk: support use vaddr as ring")
Reported-by: syzbot+fae676d3cf469331fc89@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/000000000000c84b4705fb31741e@google.com/T/
Reported-by: syzbot+b132693e925cbbd89e26@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/000000000000e20df20606ebab4f@google.com/T/
Signed-off-by: Andrew Kanner <andrew.kanner@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: syzbot+fae676d3cf469331fc89@syzkaller.appspotmail.com
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://syzkaller.appspot.com/bug?extid=fae676d3cf469331fc89
Link: https://lore.kernel.org/bpf/20231007075148.1759-1-andrew.kanner@gmail.com
2023-10-09 16:13:29 +02:00
Thomas Gleixner
4dc5af1fee irqchip fixes for 6.6, take #2
- DT binding updates for Renesas r8a779f0 and rzg2l
 
 - Let GICv3 honor the "dma-non-coherent" attribute for systems that
   rely on SW guessing what the HW supports
 
 - Fix the RISC-V INTC probing by marking all devices as initialised
   at once
 
 - Properly translate interrupt numbers from DT on stm32-exti
 
 - Use irq_data_get_irq_chip_data() in the rzg2l driver instead of
   blindly dereferencing the irq_data structure
 
 - Add a MAINTAINERS entry for the various ARM GIC irqchip drivers
 
 - Remove myself as the top-level irqchip/irqdomain maintainer
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Merge tag 'irqchip-fixes-6.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip fixes from Marc Zyngier:

  - DT binding updates for Renesas r8a779f0 and rzg2l

  - Let GICv3 honor the "dma-non-coherent" attribute for systems that
    rely on SW guessing what the HW supports

  - Fix the RISC-V INTC probing by marking all devices as initialised
    at once

  - Properly translate interrupt numbers from DT on stm32-exti

  - Use irq_data_get_irq_chip_data() in the rzg2l driver instead of
    blindly dereferencing the irq_data structure

  - Add a MAINTAINERS entry for the various ARM GIC irqchip drivers

  - Remove myself as the top-level irqchip/irqdomain maintainer

Link: https://lore.kernel.org/all/20231007121933.3840357-1-maz@kernel.org
2023-10-09 16:01:55 +02:00
Joerg Roedel
b9cb9c4558 x86/sev: Check IOBM for IOIO exceptions from user-space
Check the IO permission bitmap (if present) before emulating IOIO #VC
exceptions for user-space. These permissions are checked by hardware
already before the #VC is raised, but due to the VC-handler decoding
race it needs to be checked again in software.

Fixes: 25189d08e5 ("x86/sev-es: Add support for handling IOIO exceptions")
Reported-by: Tom Dohrmann <erbse.13@gmx.de>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Tom Dohrmann <erbse.13@gmx.de>
Cc: <stable@kernel.org>
2023-10-09 15:47:57 +02:00
Borislav Petkov (AMD)
a37cd2a59d x86/sev: Disable MMIO emulation from user mode
A virt scenario can be constructed where MMIO memory can be user memory.
When that happens, a race condition opens between when the hardware
raises the #VC and when the #VC handler gets to emulate the instruction.

If the MOVS is replaced with a MOVS accessing kernel memory in that
small race window, then write to kernel memory happens as the access
checks are not done at emulation time.

Disable MMIO emulation in user mode temporarily until a sensible use
case appears and justifies properly handling the race window.

Fixes: 0118b604c2 ("x86/sev-es: Handle MMIO String Instructions")
Reported-by: Tom Dohrmann <erbse.13@gmx.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Tom Dohrmann <erbse.13@gmx.de>
Cc: <stable@kernel.org>
2023-10-09 15:45:34 +02:00
Björn Töpel
7112cd26e6 riscv, bpf: Track both a0 (RISC-V ABI) and a5 (BPF) return values
The RISC-V BPF uses a5 for BPF return values, which are zero-extended,
whereas the RISC-V ABI uses a0 which is sign-extended. In other words,
a5 and a0 can differ, and are used in different context.

The BPF trampoline are used for both BPF programs, and regular kernel
functions.

Make sure that the RISC-V BPF trampoline saves, and restores both a0
and a5.

Fixes: 49b5e77ae3 ("riscv, bpf: Add bpf trampoline support for RV64")
Signed-off-by: Björn Töpel <bjorn@rivosinc.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20231004120706.52848-3-bjorn@kernel.org
2023-10-09 15:21:25 +02:00
Björn Töpel
2f1b0d3d73 riscv, bpf: Sign-extend return values
The RISC-V architecture does not expose sub-registers, and hold all
32-bit values in a sign-extended format [1] [2]:

  | The compiler and calling convention maintain an invariant that all
  | 32-bit values are held in a sign-extended format in 64-bit
  | registers. Even 32-bit unsigned integers extend bit 31 into bits
  | 63 through 32. Consequently, conversion between unsigned and
  | signed 32-bit integers is a no-op, as is conversion from a signed
  | 32-bit integer to a signed 64-bit integer.

While BPF, on the other hand, exposes sub-registers, and use
zero-extension (similar to arm64/x86).

This has led to some subtle bugs, where a BPF JITted program has not
sign-extended the a0 register (return value in RISC-V land), passed
the return value up the kernel, e.g.:

  | int from_bpf(void);
  |
  | long foo(void)
  | {
  |    return from_bpf();
  | }

Here, a0 would be 0xffff_ffff, instead of the expected
0xffff_ffff_ffff_ffff.

Internally, the RISC-V JIT uses a5 as a dedicated register for BPF
return values.

Keep a5 zero-extended, but explicitly sign-extend a0 (which is used
outside BPF land). Now that a0 (RISC-V ABI) and a5 (BPF ABI) differs,
a0 is only moved to a5 for non-BPF native calls (BPF_PSEUDO_CALL).

Fixes: 2353ecc6f9 ("bpf, riscv: add BPF JIT for RV64G")
Signed-off-by: Björn Töpel <bjorn@rivosinc.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://github.com/riscv/riscv-isa-manual/releases/download/riscv-isa-release-056b6ff-2023-10-02/unpriv-isa-asciidoc.pdf # [2]
Link: https://github.com/riscv-non-isa/riscv-elf-psabi-doc/releases/download/draft-20230929-e5c800e661a53efe3c2678d71a306323b60eb13b/riscv-abi.pdf # [2]
Link: https://lore.kernel.org/bpf/20231004120706.52848-2-bjorn@kernel.org
2023-10-09 15:21:25 +02:00