Add cooling-cells property to the CPU nodes to support cpufreq
cooling devices.
Signed-off-by: Dipa Mantre <dipa.mantre@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Gaurav Kohli <gaurav.kohli@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260415-cpufreq_kaanapali-v1-1-1fa94105d5c2@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Add gpio device nodes in pm8010*.dtsi files for any consumers to be
able to use the GPIOs.
Signed-off-by: Fenglin Wu <fenglin.wu@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260507-pm8010_gpio-v1-3-3bce9da8d2ba@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Move generic IPA-related properties to the base DTSI file. The herobrine
has special software configuration, so delete the memory-region property
which wasn't set for it beforehand. Also delete the property for several
IoT devices, which don't enable IPA memory at this point (and don't
seem to have IPA supported by the modem firmware).
Co-developed-by: Stanislav Zaikin <zstaseg@gmail.com>
Signed-off-by: Stanislav Zaikin <zstaseg@gmail.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Alex Elder <elder@riscstar.com>
Link: https://lore.kernel.org/r/20260517-ipa-loader-v1-6-3c3764c1b4a3@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
The sa8775p-ride board development mostly happened back to year 2023,
and it hadn't got any major update since then, except Wasim's refactor[1]
last year which had no functional change for the board.
Propose to stop maintaining the board for reasons below.
- The Lemans development had moved to QCS9100/9075 EVK and Ride board
for a long time.
- Qualcomm stopped maintaining Meta Build (NHLOS firmware) for this target
years ago. There is not too much point to continuing maintaining the DT,
as DT usually depends on NHLOS firmware.
Link: https://lore.kernel.org/all/20250803110113.401927-1-wasim.nazir@oss.qualcomm.com/ [1]
Cc: Wasim Nazir <wasim.nazir@oss.qualcomm.com>
Cc: Shazad Hussain <shazad.hussain@oss.qualcomm.com>
Cc: Andrew Halaney <ahalaney@redhat.com>
Cc: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Shawn Guo <shengchao.guo@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260520141457.988130-1-shengchao.guo@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Add the kaanpali nodes for the True Random Number Generator (TRNG).
Signed-off-by: Kuldeep Singh <kuldeep.singh@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260423-knp_rng-v1-1-9df6c0391a8f@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
The Inline Crypto Engine (ICE) exists as a standalone DT node, but the
UFS node lacks the required qcom,ice phandle reference.
Add the qcom,ice property to explicitly associate the UFS controller
with its ICE instance.
Fixes: d288abc3a7 ("arm64: dts: qcom: sm8750: Add UFS nodes for SM8750 SoC")
Signed-off-by: Kuldeep Singh <kuldeep.singh@oss.qualcomm.com>
Tested-by: Wenjia Zhang <wenjia.zhang@oss.qualcomm.com> # on sm8750-mtp
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260429-sm8750_ice_dt_fix-v1-1-2540dc337082@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Remove reservations from reserved-memory which are already covered by
the EFI memmap. AFAICT there is no need to have these in the DT and chances
are that they might change with a BIOS update, so lets drop them.
hyp_elf_package_mem + ncc_mem are together covered by
efi: 0x000080800000-0x000080dfffff [Reserved |
xbl_dtlog_mem is covered by:
efi: 0x000081a00000-0x000081a3ffff [Reserved |
pdp_ns_shared_mem is covered by:
efi: 0x000081e00000-0x000081efffff [Reserved |
gpu_prr_mem + tpm_control_mem are together covered by:
efi: 0x000081f00000-0x000081f1ffff [Reserved |
usb_ucsi_shared_mem is covered by:
efi: 0x000081f20000-0x000081f2ffff [Reserved |
pld_pep_mem + pld_gmu_mem + pld_pdp_mem are together covered by:
efi: 0x000081f30000-0x000081f37fff [Reserved |
tz_stat_mem is covered by:
efi: 0x000082700000-0x0000827fffff [Reserved |
xbl_tmp_buffer_mem is covered by:
efi: 0x000082800000-0x0000829bffff [Reserved |
Signed-off-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260525114749.5939-3-johannes.goede@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
The EFI memtable (shown when booting with efi=debug) shows that the
xbl_tmp_buffer_mem region size is 0x1c0000 bytes large not 0xc00000 bytes:
efi: 0x000082800000-0x0000829bffff [Reserved |
efi: 0x0000829c0000-0x000083efffff [Conventional|
This fix aligns the size with the EFI reported size and makes /proc/iomem
correctly show mem blocks matching the EFI memmap:
82800000-829bffff : reserved
829c0000-83efffff : System RAM
Instead of:
82800000-833fffff : reserved
83400000-83efffff : System RAM
before this change
Signed-off-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260525114749.5939-2-johannes.goede@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Enable EC_QCOM_HAMOA as a module to support the embedded controller
found on Qualcomm CRD reference devices such as Hamoa and Glymur.
Reviewed-by: Pankaj Patil <pankaj.patil@oss.qualcomm.com>
Signed-off-by: Anvesh Jain P <anvesh.p@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Tested-by: Anthony Ruhier <aruhier@mailbox.org>
Link: https://lore.kernel.org/r/20260511-add-driver-for-ec-v9-6-e5437c39b7f8@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Add embedded controller node for Hamoa IOT EVK boards which adds fan
control, temperature sensors, access to EC internal state changes and
suspend entry/exit notifications to the EC.
Signed-off-by: Sibi Sankar <sibi.sankar@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Gaurav Kohli <gaurav.kohli@oss.qualcomm.com>
Tested-by: Gaurav Kohli <gaurav.kohli@oss.qualcomm.com>
Co-developed-by: Anvesh Jain P <anvesh.p@oss.qualcomm.com>
Signed-off-by: Anvesh Jain P <anvesh.p@oss.qualcomm.com>
Tested-by: Anthony Ruhier <aruhier@mailbox.org>
Link: https://lore.kernel.org/r/20260511-add-driver-for-ec-v9-5-e5437c39b7f8@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Add embedded controller node for Hamoa/Purwa CRDs which adds fan control,
temperature sensors, access to EC internal state changes and suspend
entry/exit notifications to the EC.
Signed-off-by: Sibi Sankar <sibi.sankar@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Co-developed-by: Anvesh Jain P <anvesh.p@oss.qualcomm.com>
Signed-off-by: Anvesh Jain P <anvesh.p@oss.qualcomm.com>
Tested-by: Anthony Ruhier <aruhier@mailbox.org>
Link: https://lore.kernel.org/r/20260511-add-driver-for-ec-v9-4-e5437c39b7f8@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Add embedded controller node for Glymur CRDs which adds fan control,
temperature sensors, access to EC state changes through SCI events
and suspend entry/exit notifications to the EC.
Signed-off-by: Sibi Sankar <sibi.sankar@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Co-developed-by: Anvesh Jain P <anvesh.p@oss.qualcomm.com>
Signed-off-by: Anvesh Jain P <anvesh.p@oss.qualcomm.com>
Tested-by: Anthony Ruhier <aruhier@mailbox.org>
Link: https://lore.kernel.org/r/20260511-add-driver-for-ec-v9-3-e5437c39b7f8@oss.qualcomm.com
[bjorn: Added i2c alias for &i2c9]
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Add the interconnect paths to enable drivers to vote on them, ensuring
the necessary NoC bandwidth is available.
This hasn't been done before, as prior to commit 05566ebcc0
("clk: qcom: gcc-x1e80100: Keep GCC USB QTB clock always ON"), this
would cause an inexplicable crash upon resume from system suspend.
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260410-topic-hamoa_usb_icc-v1-1-461e64304067@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Add the touchscreen device node for the HTC One (M8).
The downstream vendor kernel used an I2C frequency of 384 kHz
for this bus. Use the same value as the vendor.
Signed-off-by: Alexandre Messier <alex@me.ssier.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260406-m8-dts-additions-v2-4-c4c4bd50af48@me.ssier.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Add the NFC chip used in the HTC One M8 to its device tree.
The downstream vendor kernel used an I2C frequency of 384 kHz
for this bus. Use the same value as the vendor.
Signed-off-by: Alexandre Messier <alex@me.ssier.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260406-m8-dts-additions-v2-2-c4c4bd50af48@me.ssier.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Add support for the notification LEDs on the HTC One M8.
Two LEDs are available, one orange and one green. Together,
they both form a single notification source, so use a
multicolor LED node to describe this arrangement.
Cc: Lee Jones <lee@kernel.org>
Cc: Pavel Machek <pavel@kernel.org>
Cc: linux-leds@vger.kernel.org
Signed-off-by: Alexandre Messier <alex@me.ssier.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260406-m8-dts-additions-v2-1-c4c4bd50af48@me.ssier.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
CPUs when Intel SNC (Sub-NUMA Clustering) is enabled
(Reinette Chatre)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2026-07-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Ingo Molnar:
- Prevent OOB access in the resctrl code while offlining
CPUs when Intel SNC (Sub-NUMA Clustering) is enabled
(Reinette Chatre)
* tag 'x86-urgent-2026-07-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86,fs/resctrl: Prevent out-of-bounds access while offlining CPU when SNC enabled
- Fix a perf_event_attr::remove_on_exec bug for group
events (Taeyang Lee)
- Fix uprobes CALL emulation interaction with shadow stacks,
and add a testcase for this (David Windsor)
- Fix uprobes unregister bug (Jiri Olsa)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-urgent-2026-07-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf events fixes from Ingo Molnar:
- Fix a perf_event_attr::remove_on_exec bug for group events
(Taeyang Lee)
- Fix uprobes CALL emulation interaction with shadow stacks, and
add a testcase for this (David Windsor)
- Fix uprobes unregister bug (Jiri Olsa)
* tag 'perf-urgent-2026-07-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
uprobes/x86: Use proper mm_struct in __in_uprobe_trampoline
selftests/x86: Add shadow stack uprobe CALL test
x86/uprobes: Keep shadow stack in sync for emulated CALLs
perf/core: Detach event groups during remove_on_exec
- Fix a resource leak in the RISC-V imsic-early driver
(Haoxiang Li)
- Fix an OF node reference leak in the ARM gic-v3-its driver
(Yuho Choi)
- Fix a dangling handler function on module removal bug in
the TS-4800 ARM board irqchip driver (Qingshuang Fu)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'irq-urgent-2026-07-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Ingo Molnar:
"Misc irqchip driver fixes:
- Fix a resource leak in the RISC-V imsic-early driver (Haoxiang Li)
- Fix an OF node reference leak in the ARM gic-v3-its driver (Yuho
Choi)
- Fix a dangling handler function on module removal bug in the
TS-4800 ARM board irqchip driver (Qingshuang Fu)"
* tag 'irq-urgent-2026-07-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/ts4800: Fix missing chained handler cleanup on remove
irqchip/gic-v3-its: Fix OF node reference leak
irqchip/irq-riscv-imsic-early: Fix fwnode leak on state setup failure
A standard set of driver-specific fixes and quirks accumulated since
the merge window:
ASoC:
- SOF: Sanity check to prevent OOB reads
- rsnd: Fix clock leak and double-disable issues with PM
- tas675x: Misc fixes for register fields, etc
- lpass-va-macro: Correct codec version for Qualcomm SC7280
- amd-yc: DMIC quirk for Alienware m15 R7 AMD
Others:
- us144mkii: Fix a UAF on disconnect and anchor list corruption
- HD-audio: Realtek quirks for HP models
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Merge tag 'sound-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A standard set of driver-specific fixes and quirks accumulated since
the merge window:
ASoC:
- SOF: Sanity check to prevent OOB reads
- rsnd: Fix clock leak and double-disable issues with PM
- tas675x: Misc fixes for register fields, etc
- lpass-va-macro: Correct codec version for Qualcomm SC7280
- amd-yc: DMIC quirk for Alienware m15 R7 AMD
Others:
- us144mkii: Fix a UAF on disconnect and anchor list corruption
- HD-audio: Realtek quirks for HP models"
* tag 'sound-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: rsnd: src: Add missing scu_supply clock to suspend/resume
Documentation: sound: tas675x: Fix temperature range and impedance documentation
ASoC: codecs: tas675x: Fix CHx temperature range register bit fields
ASoC: codecs: tas675x: use READ_ONCE for params to be used concurrently
ASoC: rsnd: adg: make rsnd_adg_clk_control() idempotent
ASoC: SOF: validate probe info element counts
ALSA: usx2y: us144mkii: fix work UAF on disconnect
ASoC: amd: yc: Add Alienware m15 R7 AMD to DMIC quirk table
ALSA: hda/realtek: Add quirk for HP Victus 16-e0xxx (88EE) to enable mute LED
MAINTAINERS: ASoC: SOF: add AMD reviewer for Sound Open Firmware
ASoC: codecs: lpass-va-macro: Fix LPASS Codec Version for SC7280
ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_urb corrupts anchor list on each resubmission
A small set of fixes that came in since -rc1, we have one core fix for
shutting down target mode properly if the system suspends while it's
running plus a small set of fairly unremarkable device specific fixes.
There's also a couple of pure DT binding changes for Renesas SoCs, the
power domains one allows some SoCs to be correctly described with
existing code.
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Merge tag 'spi-fix-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A small set of fixes that came in since -rc1, we have one core fix for
shutting down target mode properly if the system suspends while it's
running plus a small set of fairly unremarkable device specific fixes.
There's also a couple of pure DT binding changes for Renesas SoCs, the
power domains one allows some SoCs to be correctly described with
existing code"
* tag 'spi-fix-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: rzv2h-rspi: Fix DMA transfer error handling for signal interruption
spi: dt-bindings: snps,dw-apb-ssi: add 'power-domains' property
spi: dt-bindings: snps,dw-apb-ssi: drop superfluous RZ/N1 entry
spi: dw: use the correct error msg if request_irq() fails
spi: dw: fix first spi transfer with dma always fallback to PIO
spi: core: Abort active target transfer on controller suspend
spi: sh-msiof: abort transfers when reset times out
Correct the MMIO ranges and IRQs for T8122 I2C controllers.
They were mistakenly incorrect in the original commit. This
fix is required for i2c dependent hardware to function
correctly, i.e. audio codecs.
Tested on J613 (MacBook Air M3).
Fixes: c65ab4905e ("arm64: dts: apple: Initial t8122 (M3) device trees")
Signed-off-by: Michael Reeves <michael.reeves077@gmail.com>
Link: https://patch.msgid.link/20260629-t8122-i2c-fix-v1-1-cec044001550@gmail.com
Signed-off-by: Sven Peter <sven@kernel.org>
The SoCs that this driver actually works on all imply OF already. (ARM
selects USE_OF unless some archs are enabled that cannot be selected
together with ARCH_PXA or ARCH_MMP, ARM64 and RISCV select OF.)
With OF known to be enabled a few conditionals in the driver can be
simplified.
Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
Link: https://patch.msgid.link/20260705083910.3502207-2-u.kleine-koenig@baylibre.com
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
devm_apple_sart_get() obtains the supplier platform device and attempts
to create a runtime-PM device link to it, but it ignores device_link_add()
failure. A consumer can then continue without the dependency that keeps
the SART supplier ordered and runtime-PM reachable.
Treat a failed device link as an error and drop the supplier device
reference before returning.
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Reviewed-by: Joshua Peisach <jpeisach@ubuntu.com>
Link: https://patch.msgid.link/20260616005346.7862-1-pengpeng@iscas.ac.cn
Signed-off-by: Sven Peter <sven@kernel.org>
The NULL check before kvfree() is unnecessary and triggers a Coccinelle
warning, since kvfree() handles NULL arguments internally.
Reported by ifnullfree.cocci Coccinelle semantic patch script.
Signed-off-by: Vasileios Almpanis <vasilisalmpanis@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: André Almeida <andrealmeid@igalia.com>
Link: https://patch.msgid.link/20260630133530.2577832-1-vasilisalmpanis@gmail.com
irdma_check_mem_contiguous() and irdma_check_mr_contiguous() verify that
PBL entries describe physically contiguous memory ranges.
Both functions calculate byte offsets using 32-bit operands. For example,
with 4 KiB pages, pg_size * pg_idx overflows 32-bit arithmetic when
pg_idx reaches 1048576. In the level-2 check, PBLE_PER_PAGE is 512, so
i * pg_size * PBLE_PER_PAGE overflows when i reaches 2048.
These values are reachable in the driver. For MRs, palloc->total_cnt
comes from iwmr->page_cnt, which is calculated by
ib_umem_num_dma_blocks(). The MR size is limited by IRDMA_MAX_MR_SIZE,
so a 4 GiB MR with 4 KiB pages can reach page_cnt of 1048576. PBLE
resources do not exclude this value either: for gen3, the limit is based
on avail_sds * MAX_PBLE_PER_SD, and MAX_PBLE_PER_SD is 0x40000, so 4 SDs
are enough for 1048576 PBLEs.
Cast one operand to u64 before the multiplications so that the offset
calculations are performed in 64-bit arithmetic.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: b48c24c2d7 ("RDMA/irdma: Implement device supported verb APIs")
Signed-off-by: Aleksandrova Alyona <aga@itb.spb.ru>
Link: https://patch.msgid.link/20260624144846.61242-1-aga@itb.spb.ru
Signed-off-by: Leon Romanovsky <leon@kernel.org>
After commit f90fff1e15 ("posix-cpu-timers: fix race between
handle_posix_cpu_timers() and posix_cpu_timer_del()"), tsk->sighand is
stable in handle_posix_cpu_timers(), so it can use the plain
spin_lock_irqsave(&tsk->sighand->siglock).
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Bradley Morgan <include@grrlz.net>
Link: https://patch.msgid.link/akjp8AGpY8eJG5I1@redhat.com
usb_ep1_command_reply_dispatch() uses buf[0] as a command byte and then
reads command-specific fixed items from the same URB buffer. Several
paths use buf + 1, buf[1], buf[2], or buf + 3 without first proving that
urb->actual_length contains those bytes.
Add per-command length checks, use a payload length derived from the
bytes after the command byte for the control-state copy, and reject short
analog input payloads before the input helper reads fixed offsets from
the EP1 reply.
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Link: https://patch.msgid.link/20260705084601.56400-1-pengpeng@iscas.ac.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Similar to commit 67c7381522 ("ALSA: hda/realtek: fix mic boost on
Framework PTL") and previous quirks for Framework systems with
Realtek codecs.
0010 is another platform with an ALC285 which needs the same quirk.
Signed-off-by: Daniel Schaefer <dhs@frame.work>
Link: https://patch.msgid.link/20260705-framework-audio-ssid-0x0010-v1-1-fffc8996ac18@frame.work
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Wongi and Jungwoo decoded and reported a non-leader exec() related race
which can result in an UAF:
sys_timer_delete() exec()
posix_cpu_timer_del()
// Observes old leader
p = pid_task(pid, pid_type); de_thread()
switch_leader();
release_task(old_leader)
__exit_signal(old_leader)
sighand = lock(old_leader, sighand);
posix_cpu_timers*_exit();
sighand = lock_task_sighand(p) unhash_task(old_leader);
sh = lock(p, sighand) old_leader->sighand = NULL;
unlock(sighand);
(p->sighand == NULL)
unlock(sh)
return NULL;
// Returns without action
if(!sighand)
return 0;
free_posix_timer();
This is "harmless" unless the deleted timer was armed and enqueued in
p->signal because on exec() a TGID targeted timer is inherited.
As sys_timer_delete() freed the underlying posix timer object
run_posix_cpu_timers() or any timerqueue related add/delete operations on
other timers will access the freed object's timerqueue node, which results
in an UAF.
There is a similar problem vs. posix_cpu_timer_set(). For regular posix
timers it just transiently returns -ESRCH to user space, but for the use
case in do_cpu_nanosleep() it's the same UAF just that the k_itimer is
allocated on the stack.
Also posix_cpu_timer_rearm() fails to rearm the timer, which means it stops
to expire.
While debating solutions Frederic pointed out another problem:
posix_cpu_timer_del(tmr)
__exit_signal(p)
posix_cpu_timers*_exit(p);
unhash_task(p);
p->sighand = NULL;
sh = lock_task_sighand(p)
sighand = p->sighand;
if (!sighand)
return NULL;
lock(sighand);
if (!sh)
WARN_ON_ONCE(timer_queued(tmr));
On weakly ordered architectures it is not guaranteed that
posix_cpu_timer_del() will observe the stores in posix_cpu_timers*_exit()
when p->sighand is observed as NULL, which means the WARN() can be a false
positive.
Solve these issues by:
1) Changing the store in __exit_signal() to smp_store_release().
2) Adding a smp_acquire__after_ctrl_dep() into the !sighand path
of lock_task_sighand().
3) Creating a helper function for looking up the task and locking sighand
which does not return when sighand == NULL. Instead it retries the
task lookup and only if that fails it gives up.
4) Using that helper in the three affected functions.
#1/#2 ensures that the reader side which observes sighand == NULL also
observes all preceeding stores, i.e. the stores in posix_cpu_timers*_exit()
and the ones in unhash_task().
#3 ensures that the above described non-leader exec() situation is handled
gracefully. When the task lookup returns the old leader, but sighand ==
NULL then it retries. In the non-leader exec() case the subsequent task
lookup will observe the new leader due to #1/#2. In normal exit() scenarios
the subsequent lookup fails.
When the task lookup fails, the function also checks whether the timer is
still enqueued and issues a warning if that's the case. Unfortunately there
is nothing which can be done about it, but as the task is already not
longer visible the timer should not be accessed anymore. This check also
requires memory ordering, which is not provided when the first lookup
fails. To achieve that the check is preceeded by a smp_rmb() which pairs
with the smp_wmb() in write_seqlock() in __exit_signal(). That ensures that
the stores in posix_cpu_timers*_exit() are visible.
The history of the non-leader exec() issue goes back to the early days of
posix CPU timers, which stored a pointer to the group leader task in the
timer. That obviously fails when a non-leader exec() switches the leader.
commit e0a7021710 ("posix-cpu-timers: workaround to suppress the problems
with mt exec") added a temporary workaround for that in 2010 which survived
about 10 years. The fix for the workaround changed the task pointer to a
pid pointer, but failed to see the subtle race described above. So the
Fixes tag picks that commit, which seems to be halfways accurate.
Thanks to Frederic Weissbecker, Oleg Nesterov and Peter Zijlstra for
review, feedback and suggestions and to Wongi and Jungwoo for the excellent
bug report and analysis!
Fixes: 55e8c8eb2c ("posix-cpu-timers: Store a reference to a pid not a task")
Reported-by: Wongi Lee <qw3rtyp0@gmail.com>
Reported-by: Jungwoo Lee <jwlee2217@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Cc: stable@vger.kernel.org
In find_controls(), card_data is allocated with malloc() but when
snd_ctl_open_lconf() fails, the code jumps to next_card without
freeing the allocated memory. This results in a memory leak for
each card where snd_ctl_open_lconf() fails.
Add free(card_data) before goto next_card to ensure proper cleanup
of the allocated memory in the error path.
Fixes: 5aaf9efffc ("kselftest: alsa: Add simplistic test for ALSA mixer controls kselftest")
Signed-off-by: Malaya Kumar Rout <malayarout91@gmail.com>
Link: https://patch.msgid.link/20260704105736.94874-1-malayarout91@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The VCAP instances on a chip are not independent, yet they are locked
independently. On sparx5 and lan969x the IS0 and IS2 instances are
backed by the same Super VCAP hardware block and share its cache and
command registers: every access drives the shared VCAP_SUPER_CTRL
register and moves data through the shared cache registers.
Accessing one instance therefore races with accessing another. The
per-instance admin->lock cannot prevent this, as each instance takes a
different lock.
The locking issue is mostly disguised by the fact that the core usage of
the vcap api runs under rtnl. However, the full rule dump in debugfs
decodes rules straight from hardware (a READ command followed by a cache
read) and runs outside rtnl, so it races a concurrent tc-flower rule
write to another Super VCAP instance.
Besides corrupting the dump, the read repopulates the shared cache
between the writers cache fill and its write command, so the writer
commits the wrong data and corrupts the hardware entry.
Introduce vcap_lock() and vcap_unlock() helpers and route every rule
lock site in the VCAP API and its debugfs code through them. Replace the
per-instance admin->lock with a single mutex in struct vcap_control that
serializes access to all instances. The helpers reach it through a new
admin->vctrl back-pointer, and the clients initialise and destroy the
control lock instead of a per-instance one.
No path holds more than one instance lock, so collapsing them onto a
single mutex cannot self-deadlock.
Fixes: 71c9de9952 ("net: microchip: sparx5: Add VCAP locking to protect rules")
Signed-off-by: Jens Emil Schulz Østergaard <jensemil.schulzostergaard@microchip.com>
Link: https://patch.msgid.link/20260630-microchip_fix_vcap_locking-v1-1-f60a4596734d@microchip.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
llc_ui_autobind() opens a SAP after choosing a dynamic LSAP.
llc_sap_open() returns a reference owned by the caller, and
llc_sap_add_socket() takes a second reference for the socket's
membership in the SAP hash tables.
llc_ui_bind() drops the caller's reference after adding the socket,
but llc_ui_autobind() keeps it. When the socket is closed,
llc_sap_remove_socket() releases only the socket reference, leaving
the SAP on llc_sap_list with sk_count == 0.
This is user-visible because repeated autobind and close cycles can consume
all dynamic SAP values and make later autobinds fail with -EUSERS.
Drop the caller's reference after a successful autobind, matching
llc_ui_bind()'s ownership model.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Signed-off-by: Shuangpeng Bai <shuangpeng.kernel@gmail.com>
Link: https://patch.msgid.link/20260630194856.1036497-1-shuangpeng.kernel@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The driver has a match table for the usb bus wired into its driver
structure, but the table is not exported with MODULE_DEVICE_TABLE().
Add the missing MODULE_DEVICE_TABLE() entry so module alias information
is generated for automatic module loading.
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Link: https://patch.msgid.link/20260704151730.42772-1-pengpeng@iscas.ac.cn
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
al3010_scales[] encodes the highest gain range as {0, 1187200}.
For IIO_VAL_INT_PLUS_MICRO, the fractional part must be less than
1000000, so the scale 1.1872 should instead be represented as
{ 1, 187200 }.
Since write_raw() compares the value from userspace against this
table, writing the advertised 1.1872 scale never matches the malformed
entry and returns -EINVAL. As a result, the highest gain range cannot
be selected. Reading the scale in that state also reports the malformed
value.
Fixes: c36b5195ab ("iio: light: add Dyna-Image AL3010 driver")
Signed-off-by: Vidhu Sarwal <vidhu.linux@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
The original code was using ndelay() twice. In one case the delay
is calculated as 1/3 of ADC clock and in the other as 80 ADC clocks.
But according to the comments in all cases it should be a multiplier
of the ADC clock, and not a fraction of it. Inadvertently
nxp_sar_adc_wait_for() takes the wrong case and spread it over
the code make it wrong in all places. Fix this by modifying a helper
to correctly use the multiplier.
Fixes: 7e5c0f97c6 ("iio: adc: nxp-sar-adc: Avoid division by zero")
Fixes: 4434072a89 ("iio: adc: Add the NXP SAR ADC support for the s32g2/3 platforms")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Closes: https://sashiko.dev/#/patchset/20260416090122.758990-1-andriy.shevchenko%40linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Stepan Ionichev <sozdayvek@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@oss.qualcomm.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
When devm_request_threaded_irq() fails, probe logs the error and
then returns -EINVAL, dropping the real error code and breaking the
deferred-probe flow for -EPROBE_DEFER.
Return ret directly; the IRQ subsystem already prints on failure.
Fixes: 2335f0d7c7 ("iio: light: Added AMS tsl2591 driver implementation")
Cc: stable@vger.kernel.org
Signed-off-by: Stepan Ionichev <sozdayvek@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Timestamps are made by measuring the chip clock using the watermark
interrupts. If we read more than watermark samples as done today, we
are reducing the period between interrupts and distort the time
measurement. Fix that by reading only watermark samples in the
interrupt case.
Fixes: 7f85e42a6c ("iio: imu: inv_icm42600: add buffer support in iio devices")
Cc: stable@vger.kernel.org
Signed-off-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
- Fix PKEY_VERIFYPROTK ioctl key type handling by removing the generic
key-length based type check with its wrong bit-size calculation,
and leaving protected key verification to the pkey handler
- Fix monwriter buffer reuse by rejecting records that change the data
length, preventing out of bounds user copy into the kernel buffer
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Merge tag 's390-7.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Fix PKEY_VERIFYPROTK ioctl key type handling by removing the generic
key-length based type check with its wrong bit-size calculation, and
leaving protected key verification to the pkey handler
- Fix monwriter buffer reuse by rejecting records that change the data
length, preventing out of bounds user copy into the kernel buffer
* tag 's390-7.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/monwriter: Reject buffer reuse with different data length
pkey: Move keytype check from pkey api to handler
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Merge tag 'mips-fixes_7.2_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Thomas Bogendoerfer.
* tag 'mips-fixes_7.2_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: configs: Enable the current Ingenic USB PHY symbol
MIPS: loongson64: add IRQ work based on self-IPI
MIPS: mm: Add check for highmem before removing memory block
mips: Add build salt to the vDSO
MIPS: DEC: Ensure RTC platform device deregistration upon failure
