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2026-05-28drm/i915/bw: Fix num_planes handling on TGL+Ville Syrjälä
The TGL+ bw code has an off by one error on the num_planes calculation, and tgl_max_bw_index() incorrectly bumps the num_planes to 1 from 0. That approach made sense on ICL where num_planes is more or less a minimum number of planes to consider for the group, but on TGL+ num_planes really is a maximum number of planes, so these adjustments no longer make any sense there. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patch.msgid.link/20260522200346.17377-2-ville.syrjala@linux.intel.com Reviewed-by: Michał Grzelak <michal.grzelak@intel.com>
2026-05-28platform/chrome: cros_ec_chardev: Add event relayerTzung-Bi Shih
Introduce an event relayer mechanism. Instead of each open file registering directly with `ec_dev->event_notifier`, the platform device registers a single relayer notifier. Individual files then register with a local subscribers list in `chardev_pdata`. This allows the driver to safely disconnect from the event chain `ec_dev->event_notifier` during cros_ec_chardev_remove(), preventing events from being delivered to open files after the device is removed, while still allowing those files to be closed safely later. Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/20260525052654.4076429-4-tzungbi@kernel.org Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
2026-05-28platform/chrome: cros_ec_chardev: Move data to chardev_pdataTzung-Bi Shih
Move `ec_dev` and `cmd_offset` from `chardev_priv` to `chardev_pdata` as they are per-device properties but not per-open-file properties. Hold a reference to `chardev_pdata` for each open file to ensure the data remains valid even if the underlying platform device is removed. Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/20260525052654.4076429-3-tzungbi@kernel.org Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
2026-05-28platform/chrome: cros_ec_chardev: Introduce chardev_dataTzung-Bi Shih
Introduce struct chardev_pdata to hold platform driver data. The platform driver data is allocated by kzalloc() instead of devm variant, allowing for managed cleanup that can eventually extend beyond device removal if files are still open. Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/20260525052654.4076429-2-tzungbi@kernel.org Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
2026-05-27net: phy: air_an8801: ensure maximum available speed link useLouis-Alexis Eyraud
To ensure that the Airoha AN8801R PHY uses the maximum available link speed, an additional register write is needed to configure the function mode for either 1G or 100M/10M operation after link detection. So, in air_an8801 driver, implement a custom read_status callback, that after genphy_read_status determines the link speed, sets the bit 0 of the link mode register (REG_LINK_MODE) if the detected speed is 1Gbps, or unsets it otherwise. Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20260526-add-airoha-an8801-support-v5-6-01aea8dee69b@collabora.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-27net: phy: Introduce Airoha AN8801R Gigabit Ethernet PHY driverAngeloGioacchino Del Regno
Introduce a driver for the Airoha AN8801R Series Gigabit Ethernet PHY; this currently supports setting up PHY LEDs, 10/100M, 1000M speeds, and Wake on LAN and PHY interrupts. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20260526-add-airoha-an8801-support-v5-5-01aea8dee69b@collabora.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-27net: phy: Rename Airoha common BuckPBus register accessorsLouis-Alexis Eyraud
Rename the BuckPBus register accessors functions present in air_phy_lib and their calls in air_en8811h driver, so all exported functions start with the same prefix. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com> Link: https://patch.msgid.link/20260526-add-airoha-an8801-support-v5-4-01aea8dee69b@collabora.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-27net: phy: air_phy_lib: Factorize BuckPBus register accessorsLouis-Alexis Eyraud
In preparation of Airoha AN8801R PHY support, move the BuckPBus register accessors and definitions, present in air_en8811h driver, into the Airoha PHY shared code (air_phy_lib), so they will be usable by the new driver without duplicating them. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com> Link: https://patch.msgid.link/20260526-add-airoha-an8801-support-v5-3-01aea8dee69b@collabora.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-27net: phy: Add Airoha phy library for shared codeLouis-Alexis Eyraud
In preparation of Airoha AN8801R PHY support, split out the interface functions that will be common between the already present air_en8811h driver and the new one, and put them into a new library named air_phy_lib. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com> Link: https://patch.msgid.link/20260526-add-airoha-an8801-support-v5-2-01aea8dee69b@collabora.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-27net: sfp: add quirk for OEM 2.5G optical modulesWei Qisen
Some OEM-branded SFP modules are incorrectly detected as 1000Base-X and fail to establish link on 2.5G-capable ports. These modules do not properly advertise 2500Base-X capability in their EEPROM and require forcing the correct SerDes mode. Add sfp_quirk_2500basex for: - OEM SFP-2.5G-LH03-B - OEM SFP-2.5G-LH20-A Both modules report: Vendor name: OEM Vendor PN: SFP-2.5G-LH03-B / SFP-2.5G-LH20-A Tested on OpenWrt with successful 2.5G link establishment. Signed-off-by: Wei Qisen <weixiansen574@163.com> Link: https://patch.msgid.link/20260526055206.1750-1-weixiansen574@163.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-27bonding: refuse to enslave CAN devicesOliver Hartkopp
syzbot reported a kernel paging request crash in can_rx_unregister() inside net/can/af_can.c. The crash occurs because a virtual CAN device (vxcan) is being enslaved to a bonding master. During the enslavement process, the bonding driver mutates and modifies the network device states to fit an Ethernet-like aggregation model. However, CAN devices operate on a completely different Layer 2 architecture, relying on the CAN mid-layer private data structure (can_ml_priv) instead of standard Ethernet structures. Since bonding does not initialize or maintain these CAN structures, subsequent operations on the half-enslaved interface (such as closing associated sockets via isotp_release) lead to a null-pointer dereference when accessing the CAN receiver lists. Bonding CAN interfaces is architecturally invalid as CAN lacks MAC addresses, ARP capabilities, and standard Ethernet link-layer mechanisms. While generic loopback devices are blocked globally in net/core/dev.c, virtual CAN devices bypass this check because they do not carry the IFF_LOOPBACK flag, despite acting as local software-loopbacks. Fix this by explicitly blocking network devices of type ARPHRD_CAN from being enslaved at the very beginning of bond_enslave(). This prevents illegal state mutations, eliminates the resulting KASAN crashes, and avoids potential memory leaks from incomplete socket cleanups. As the CAN support has been added a long time after bonding the Fixes-tag points to the introduction of ARPHRD_CAN that would have needed a specific handling in bonding_main.c. Fixes: cd05acfe65ed ("[CAN]: Allocate protocol numbers for PF_CAN") Reported-by: syzbot+8ed98cbd0161632bce95@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=8ed98cbd0161632bce95 Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Acked-by: Jay Vosburgh <jv@jvosburgh.net> Link: https://patch.msgid.link/20260526-bonding-candev-v1-1-ba1df400918a@hartkopp.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-27mshv: support 1G hugepages by passing them as 2M-aligned chunksAnirudh Rayabharam (Microsoft)
The hypervisor's map GPA hypercall coalesces contiguous 2M-aligned chunks into 1G mappings when alignment permits, so the driver can support 1G hugepages by feeding them in as 2M chunks. Note that this is the only way to make 1G mappings; there is no way to directly map a 1G hugepage using the hypercall. Always emit a 2M (PMD_ORDER) stride for the huge-page case. The hypercall has no 1G stride, so 1G folios are processed as a sequence of 2M chunks. Folios whose order is less than PMD_ORDER (e.g. mTHP) fall back to single-page stride; mapping them as 2M would fail in the hypervisor anyway. Assisted-by: Copilot-CLI:claude-opus-4.7 Signed-off-by: Anirudh Rayabharam (Microsoft) <anirudh@anirudhrb.com> Acked-by: Stanislav Kinsburskii <skinsburskii@linux.microsoft.com> Reviewed-by: Michael Kelley <mhklinux@outlook.com> Signed-off-by: Wei Liu <wei.liu@kernel.org>
2026-05-27Drivers: hv: vmbus: Improve the logic of reserving fb_mmio on Gen2 VMsDexuan Cui
If vmbus_reserve_fb() in the kdump/kexec kernel fails to properly reserve the framebuffer MMIO range (which is below 4GB) due to a Gen2 VM's screen.lfb_base being zero [1], there is an MMIO conflict between the drivers hyperv-drm and pci-hyperv: when the driver pci-hyperv's hv_allocate_config_window() calls vmbus_allocate_mmio() to get an MMIO range, typically it gets a 32-bit MMIO range that overlaps with the framebuffer MMIO range, and later hv_pci_enter_d0() fails with an error message "PCI Pass-through VSP failed D0 Entry with status" since the host thinks that PCI devices must not use MMIO space that the host has assigned to the framebuffer. This is especially an issue if pci-hyperv is built-in and hyperv-drm is built as a module. Consequently, the kdump/kexec kernel fails to detect PCI devices via pci-hyperv, and may fail to mount the root file system, which may reside in a NVMe disk. The issue described here has existed for SR-IOV VF NICs since day one of the pci-hyperv driver, and has been worked around on x64 when possible. With the recent introduction of ARM64 VMs that boot from NVMe, there is no workaround, so we need a formal fix. On Gen2 VMs, if the screen.lfb_base is 0 in the kdump/kexec kernel [1], fall back to the low MMIO base, which should be equal to the framebuffer MMIO base [2] (the statement is true according to my testing on x64 Windows Server 2016, and on x64 and ARM64 Windows Server 2025 and on Azure. I checked with the Hyper-V team and they said the statement should continue to be true for Gen2 VMs). In the first kernel, screen.lfb_base is not 0; if the user specifies a very high resolution, it's not enough to only reserve 8MB: let's always reserve half of the space below 4GB, but cap the reservation to 128MB, which is the required framebuffer size of the highest resolution 7680*4320 supported by Hyper-V. While at it, fix the comparison "end > VTPM_BASE_ADDRESS" by changing the > to >=. Here the 'end' is an inclusive end (typically, it's 0xFFFF_FFFF for the low MMIO range). Note: vmbus_reserve_fb() now also reserves an MMIO range at the beginning of the low MMIO range on CVMs, which have no framebuffers (the 'screen.lfb_base' in vmbus_reserve_fb() is 0 for CVMs), just in case the host might treat the beginning of the low MMIO range specially [3]. BTW, the OpenHCL kernel is not affected by the change, because that kernel boots with DeviceTree rather than ACPI (so vmbus_reserve_fb() won't run there), and there is no framebuffer device for that kernel. Note: normally Gen1 VMs don't have the MMIO conflict issue because the framebuffer MMIO range (which is hardcoded to base=4GB-128MB and size=64MB for Gen1 VMs by the host) is always reported via the legacy PCI graphics device's BAR, so the kdump/kexec kernel can reserve the 64MB MMIO range; however, if the VM is configured to use a very high resolution and the required framebuffer size exceeds 64MB (AFAIK, in practice, this isn't a typical configuration by users), the hyperv-drm driver may need to allocate an MMIO range above 4GB and change the framebuffer MMIO location to the allocated MMIO range -- in this case, there can still be issues [4] which can't be easily fixed: any possible affected Gen1 users would have to use a resolution whose framebuffer size is <= 64MB, or switch to Gen2 VMs. [1] https://lore.kernel.org/all/SA1PR21MB692176C1BC53BFC9EAE5CF8EBF51A@SA1PR21MB6921.namprd21.prod.outlook.com/ [2] https://lore.kernel.org/all/SA1PR21MB69218F955B62DFF62E3E88D2BF222@SA1PR21MB6921.namprd21.prod.outlook.com/ [3] https://lore.kernel.org/all/SN6PR02MB415726B17D5A6027CD1717E8D4342@SN6PR02MB4157.namprd02.prod.outlook.com/ [4] https://lore.kernel.org/all/SA1PR21MB69213486F821CA5A2C793C81BF342@SA1PR21MB6921.namprd21.prod.outlook.com/ Fixes: 4daace0d8ce8 ("PCI: hv: Add paravirtual PCI front-end for Microsoft Hyper-V VMs") CC: stable@vger.kernel.org Reviewed-by: Michael Kelley <mhklinux@outlook.com> Tested-by: Krister Johansen <kjlx@templeofstupid.com> Tested-by: Matthew Ruffell <matthew.ruffell@canonical.com> Signed-off-by: Dexuan Cui <decui@microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org>
2026-05-27mshv: use kmalloc_array in mshv_root_scheduler_initCan Peng
Replace kmalloc() with kmalloc_array() to prevent potential overflow, as recommended in Documentation/process/deprecated.rst. No functional change. Signed-off-by: Can Peng <pengcan@kylinos.cn> Signed-off-by: Wei Liu <wei.liu@kernel.org>
2026-05-28counter: intel-qep: Use devm_mutex_init()Ilpo Järvinen
intel_qep_probe() calls mutex_init() but lacks the pairing mutex_destroy() calls. Convert to devm_mutex_init() which handles cleanup automatically. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Reviewed-by: Joshua Crofts <joshua.crofts1@gmail.com> Reviewed-by: Stepan Ionichev <sozdayvek@gmail.com> Link: https://lore.kernel.org/r/20260520111813.3934-1-ilpo.jarvinen@linux.intel.com Signed-off-by: William Breathitt Gray <wbg@kernel.org>
2026-05-28counter: interrupt-cnt: use devm_mutex_init()Stepan Ionichev
interrupt_cnt_probe() calls mutex_init() but neither this driver nor the counter core issues a matching mutex_destroy() on unbind, so the lock debug state is leaked. Switch to devm_mutex_init() so the mutex is torn down in the same devm scope it was set up in. Signed-off-by: Stepan Ionichev <sozdayvek@gmail.com> Reviewed-by: Joshua Crofts <joshua.crofts1@gmail.com> Link: https://lore.kernel.org/r/20260523184418.7586-1-sozdayvek@gmail.com Signed-off-by: William Breathitt Gray <wbg@kernel.org>
2026-05-28counter: ftm-quaddec: use devm_mutex_init()Stepan Ionichev
ftm_quaddec_probe() calls mutex_init() but neither the cleanup action nor a remove callback issues a matching mutex_destroy(), so the lock debug state is leaked on driver unbind. Switch to devm_mutex_init() so the mutex is torn down in the same devm scope it was set up in. Signed-off-by: Stepan Ionichev <sozdayvek@gmail.com> Reviewed-by: Joshua Crofts <joshua.crofts1@gmail.com> Link: https://lore.kernel.org/r/20260523184351.7567-1-sozdayvek@gmail.com Signed-off-by: William Breathitt Gray <wbg@kernel.org>
2026-05-27mshv: Add conditional VMBus dependencyMichael Kelley
When the VMBus driver is not part of the kernel (CONFIG_HYPERV_VMBUS=n), the MSHV root driver fails to link: ERROR: modpost: "hv_vmbus_exists" [drivers/hv/mshv_root.ko] undefined! Fix this while meeting these requirements: * It must be possible to include the MSHV root driver without the VMBus driver. In such case, the MSHV root driver can be built-in to the kernel image, or it can be built as a separate module. * If both the MSHV root driver and the VMBus driver are present, the MSHV root driver and VMBus driver can both be built-in, or they can both be separate modules. Or the MSHV root driver can be a module while the VMBus driver can be built-in, but the reverse is disallowed. Regardless of the build choices, the VMBus driver must be loaded before the MSHV driver in order for the SynIC to be managed properly (see comments in the MSHV SynIC code). The fix has two parts: * Add a Kconfig entry for MSHV_ROOT to depend on HYPERV_VMBUS if HYPERV_VMBUS is present. The entry disallows MSHV_ROOT being built-in when HYPERV_VMBUS is a module, but without requiring that HYPERV_VMBUS be built. * Add a stub implementation of hv_vmbus_exists() for when the VMBus driver is not present so that the MSHV root driver has no module dependency on VMBus. When the VMBus driver *is* present, the module dependency ensures that the VMBus driver loads first when both are built as modules. Existing code ensures that the VMBus driver loads first if it is built-in. The VMBus driver uses subsys_initcall(), which is initcall level 4. The MSHV root driver uses module_init(), which becomes device_init() when built-in, and device_init() is initcall level 6. Reported-by: Arnd Bergmann <arnd@arndb.de> Closes: https://lore.kernel.org/all/20260520074044.923728-1-arnd@kernel.org/ Signed-off-by: Michael Kelley <mhklinux@outlook.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Jork Loeser <jloeser@linux.microsoft.com> Reviewed-by: Hardik Garg <hargar@linux.microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org>
2026-05-27Bluetooth: hci_qca: Use 100 ms SSR delay for rampatch and NVM loadingShuai Zhang
When bt_en is pulled high by hardware, the host does not re-download the firmware after SSR. The controller loads the rampatch and NVM internally. On HMT chip, the rampatch is ~264 KB and the NVM is ~9.4 KB. The loading process takes approximately 70 ms. The previous 50 ms delay is too short, causing the controller to not respond to the reset command sent by the host, which leads to BT initialization failure: Bluetooth: hci0: QCA memdump Done, received 458752, total 458752 Bluetooth: hci0: mem_dump_status: 2 Bluetooth: hci0: Opcode 0x0c03 failed: -110 Increase the delay to 100 ms, which was confirmed as a safe value by the controller, to ensure the controller has finished loading the firmware before the host sends commands. Steps to reproduce: 1. Trigger SSR and wait for SSR to complete: hcitool cmd 0x3f 0c 26 2. Run "bluetoothctl power on" and observe that BT fails to start. Fixes: fce1a9244a0f ("Bluetooth: hci_qca: Fix SSR (SubSystem Restart) fail when BT_EN is pulled up by hw") Cc: stable@vger.kernel.org Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Shuai Zhang <shuai.zhang@oss.qualcomm.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-05-27Bluetooth: btusb: Allow firmware re-download when version matchesShuai Zhang
The Bluetooth host decides whether to download firmware by reading the controller firmware download completion flag and firmware version information. If a USB error occurs during the firmware download process (for example due to a USB disconnect), the download is aborted immediately. An incomplete firmware transfer does not cause the controller to set the download completion flag, but the firmware version information may be updated at an early stage of the download process. In this case, after USB reconnection, the host attempts to re-download the firmware because the download completion flag is not set. However, since the controller reports the same firmware version as the target firmware, the download is skipped. This ultimately results in the firmware not being properly updated on the controller. This change removes the restriction that skips firmware download when the versions are equal. It covers scenarios where the USB connection can be disconnected at any time and ensures that firmware download can be retriggered after USB reconnection, allowing the Bluetooth firmware to be correctly and completely updated. Fixes: 3267c884cefa ("Bluetooth: btusb: Add support for QCA ROME chipset family") Cc: stable@vger.kernel.org Signed-off-by: Shuai Zhang <shuai.zhang@oss.qualcomm.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-05-27drm/xe: Move xe_uc_fw_abi.h to abi/Michal Wajdeczko
We aim to keep all pure ABI headers in the abi/ folder, but somehow we missed this file. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patch.msgid.link/20260527112608.22448-1-michal.wajdeczko@intel.com
2026-05-27ACPICA: add boundary checks in two placesikaros
Add boundary checks in acpi_ps_get_next_namestring() and acpi_ps_peek_opcode() to prevent out-of-bounds access. Link: https://github.com/acpica/acpica/commit/cfdc96896d8d Signed-off-by: ikaros <void0red@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/5180044.0VBMTVartN@rafael.j.wysocki
2026-05-27ACPICA: Add package limit checks in parser functionsikaros
Add package limit checks in parser functions to prevent out-of-bounds access. Link: https://github.com/acpica/acpica/commit/b31b45af2122 Signed-off-by: ikaros <void0red@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/3212937.CbtlEUcBR6@rafael.j.wysocki
2026-05-27ACPICA: Update the copyright year to 2026Pawel Chmielewski
Update copyright notices in all ACPICA files. Link: https://github.com/acpica/acpica/commit/9def02549a9c Signed-off-by: Pawel Chmielewski <pawel.chmielewski@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/4379132.1IzOArtZ34@rafael.j.wysocki
2026-05-27ACPICA: Remove spurious precision from format used to dump parse treesDavid Laight
The debug code in acpi_ps_delete_parse_tree() uses ("%*.s", level * 4, " ") to indent traces. POSIX requires the empty precision be treated as zero, but the kernel treats is as 'no precision specified'. Change to ("%*s", level * 4, "") since there is additional whitespace and no reason to indent by one space when level is zero. Link: https://github.com/acpica/acpica/commit/a87038098af6 Signed-off-by: David Laight <david.laight.linux@gmail.com> Signed-off-by: Pawel Chmielewski <pawel.chmielewski@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/2914242.BEx9A2HvPv@rafael.j.wysocki
2026-05-27ACPICA: Enhance OEM ID and Table ID validation in acpi_ex_load_table_op()ikaros
Enhance OEM ID and Table ID validation in acpi_ex_load_table_op() to prevent buffer overflows. Link: https://github.com/acpica/acpica/commit/f85a43098d65 Signed-off-by: ikaros <void0red@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/2230782.OBFZWjSADL@rafael.j.wysocki
2026-05-27ACPICA: Fix NULL pointer dereference in acpi_ns_custom_package()Weiming Shi
acpi_ns_custom_package() unconditionally dereferences the first element of the package to read the _BIX version number, without checking for NULL: if ((*Elements)->Common.Type != ACPI_TYPE_INTEGER) When firmware returns a _BIX package whose first element is an unresolvable reference, ACPICA evaluates that entry to NULL. acpi_ns_remove_null_elements() does not strip NULL entries for ACPI_PTYPE_CUSTOM packages (fixed-position format would break if elements were shifted), so acpi_ns_custom_package() sees the NULL and causes a crash. Add a NULL check for the first element (version field) before dereferencing it. The caller then receives AE_AML_OPERAND_TYPE instead of crashing. Link: https://github.com/acpica/acpica/commit/f3f111b9013b Reported-by: Xiang Mei <xmei5@asu.edu> Reported-by: Weiming Shi <bestswngs@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/5674388.Sb9uPGUboI@rafael.j.wysocki
2026-05-27ACPICA: Enhance buffer validation in acpi_ut_walk_aml_resources()ikaros
Enhance buffer validation in acpi_ut_walk_aml_resources() to prevent buffer overflows. Link: https://github.com/acpica/acpica/commit/975cb20c7992 Signed-off-by: ikaros <void0red@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/2481429.NG923GbCHz@rafael.j.wysocki
2026-05-27ACPICA: Add validation for node in acpi_ns_build_normalized_path()ikaros
Add validation for node in acpi_ns_build_normalized_path() to prevent use-after-free vulnerabilities. Link: https://github.com/acpica/acpica/commit/b35adf49e89a Signed-off-by: ikaros <void0red@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/118666237.nniJfEyVGO@rafael.j.wysocki
2026-05-27ACPICA: validate handler object type in two placesikaros
ACPICA: validate handler object type in acpi_ev_has_default_handler() and acpi_ev_find_region_handler(). Link: https://github.com/acpica/acpica/commit/f6fc648a1389 Signed-off-by: ikaros <void0red@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/48111441.fMDQidcC6G@rafael.j.wysocki
2026-05-27ACPICA: Improve argument parsing in acpi_ps_get_next_simple_arg()ikaros
Improve argument parsing in acpi_ps_get_next_simple_arg() to handle remaining AML data safely. Link: https://github.com/acpica/acpica/commit/ecbb8bcfe301 Signed-off-by: ikaros <void0red@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/2008043.taCxCBeP46@rafael.j.wysocki
2026-05-27ACPICA: Fix integer overflow in acpi_ex_opcode_3A_1T_1R() (mid_op)ikaros
Add overflow check for Index + Length to prevent integer overflow when calculating the truncation length. This prevents negative size parameter being passed to memcpy(). Link: https://github.com/acpica/acpica/commit/d281ec1ac84e Signed-off-by: ikaros <void0red@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/3760974.R56niFO833@rafael.j.wysocki
2026-05-27ACPICA: Prevent adding invalid referencesikaros
Prevent adding references for local, argument, and debug objects in acpi_ut_copy_simple_object(). Link: https://github.com/acpica/acpica/commit/f576898d7814 Signed-off-by: ikaros <void0red@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/4511989.ejJDZkT8p0@rafael.j.wysocki
2026-05-27ACPICA: add boundary checks in acpi_ps_get_next_field()ikaros
Add boundary checks in acpi_ps_get_next_field() to prevent out-of-bounds access. Link: https://github.com/acpica/acpica/commit/c39183ea84bc Signed-off-by: ikaros <void0red@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/24388159.6Emhk5qWAg@rafael.j.wysocki
2026-05-27ACPICA: validate byte_count in acpi_ps_get_next_package_length()ikaros
Validate package length reading in acpi_ps_get_next_package_length(). Link: https://github.com/acpica/acpica/commit/40e03f9941e2 Signed-off-by: ikaros <void0red@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/3616255.QJadu78ljV@rafael.j.wysocki
2026-05-27ACPICA: Fix use-after-free in acpi_ds_terminate_control_method()ikaros
Fix use-after-free issue in acpi_ds_terminate_control_method() by clearing references to method locals and arguments. Link: https://github.com/acpica/acpica/commit/36f22a94cb1b Signed-off-by: ikaros <void0red@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/8730924.NyiUUSuA9g@rafael.j.wysocki
2026-05-27ACPICA: fix I2C LVR item count in the conversion tableAkhil R
For ACPI_RSC_MOVE8, the 'Value' field in struct acpi_rsconvert_info is the item count count and not a bit position like for the bitflags. Set 'Value' as '1' to fix this. Conversion still works coincidentally with '0' because item_count is not reset between table entries, and the previous count value was taking effect. Link: https://github.com/acpica/acpica/commit/70082dc8fc84 Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/6164740.MhkbZ0Pkbq@rafael.j.wysocki
2026-05-27ACPICA: Mention the LVR bitsAkhil R
Add a comment mentioning the LVR byte position in the type_specific_flag. Link: https://github.com/acpica/acpica/commit/014fa9f2dbcc Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/9627007.CDJkKcVGEf@rafael.j.wysocki
2026-05-27ACPICA: Change LVR to 8 bit valueAkhil R
In the LVR I2C resource entry to acpi_rs_convert_i2c_serial_bus[]. Link: https://github.com/acpica/acpica/commit/7650d4a889ea Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/3952474.kQq0lBPeGt@rafael.j.wysocki
2026-05-27ACPICA: Fetch LVR I2C resource descriptorAkhil R
Add LVR I2C resource entry to acpi_rs_convert_i2c_serial_bus[]. Link: https://github.com/acpica/acpica/commit/c40411823510 Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/23121545.EfDdHjke4D@rafael.j.wysocki
2026-05-27ACPICA: Fix FADT 32/64X length mismatch warningAbdelkader Boudih
When the 64-bit address is set but bit_width is 0, the spec says the legacy length should be used. That is valid firmware. Skip the warning if bit_width is 0. This avoids false warnings like: 32/64X length mismatch in FADT/gpe0_block: 128/0 Tested on free_BSD 16.0-CURRENT. Link: https://github.com/acpica/acpica/commit/b6387a387c51 Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/8688362.T7Z3S40VBb@rafael.j.wysocki
2026-05-27ACPICA: Add alias node support in namespace handlingikaros
- Mark nodes as alias in ld_namespace2_begin() function. - Skip teardown for alias nodes in acpi_ns_detach_object() function. - Define ANOBJ_IS_ALIAS flag in aclocal.h. Link: https://github.com/acpica/acpica/commit/cfcc46c4f717 Signed-off-by: ikaros <void0red@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/14020896.uLZWGnKmhe@rafael.j.wysocki
2026-05-27ACPICA: Fix condition check in acpi_ps_parse_loop()ikaros
Fix condition check for AML_ELSE_OP in acpi_ps_parse_loop() to prevent out-of-bounds access. Link: https://github.com/acpica/acpica/commit/3b537b92336e Signed-off-by: ikaros <void0red@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/1959692.tdWV9SEqCh@rafael.j.wysocki
2026-05-27nvme-pci: fix out-of-bounds access in nvme_setup_descriptor_poolsMateusz Nowicki
nvme_setup_descriptor_pools() indexes dev->descriptor_pools[] using the numa_node forwarded from hctx->numa_node by its single caller, nvme_init_hctx_common(). On a non-NUMA kernel hctx->numa_node is NUMA_NO_NODE (-1). Because the parameter was declared 'unsigned', the value becomes UINT_MAX and the index walks off the array (sized to nr_node_ids), faulting during nvme_alloc_ns() and leaving the namespace without a /dev node. Reproduces on any NVMe controller probed by a CONFIG_NUMA=n kernel: BUG: unable to handle page fault for address: ffff889101603d38 RIP: 0010:nvme_init_hctx_common+0x5a/0x190 [nvme] Call Trace: nvme_init_hctx+0x10/0x20 [nvme] nvme_alloc_ns+0x9e/0xa10 [nvme_core] nvme_scan_ns+0x301/0x3b0 [nvme_core] nvme_scan_ns_async+0x23/0x30 [nvme_core] Switch the parameter to int and fall back to node 0 when it is NUMA_NO_NODE; node 0 is always present. Fixes: d977506f8863 ("nvme-pci: make PRP list DMA pools per-NUMA-node") Link: https://lore.kernel.org/r/20260309062840.2937858-2-iam@sung-woo.kim Reported-by: Sung-woo Kim <iam@sung-woo.kim> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Mateusz Nowicki <mateusz.nowicki@posteo.net> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-05-27pinctrl: qcom: sm6115: Add egpio supportStanislav Zaikin
This mirrors the egpio support added to sc7280/sm8450/sm8250/etc. This change is necessary for GPIOs 98-112 (15 GPIOs) to be used as normal GPIOs. Signed-off-by: Stanislav Zaikin <zstaseg@gmail.com> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Signed-off-by: Linus Walleij <linusw@kernel.org>
2026-05-27drm/amdgpu: fix calling VM invalidation in amdgpu_hmm_invalidate_gfxChristian König
Otherwise we don't invalidate page tables on next CS. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Vitaly Prosyak <vitaly.prosyak@amd.com> Tested-by: Vitaly Prosyak <vitaly.prosyak@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit b6444d1bcbc34f6f2a31a3aab3059be082f3683e) Cc: stable@vger.kernel.org
2026-05-27drm/amdgpu: fix amdgpu_hmm_range_get_pagesChristian König
The notifier sequence must only be read once or otherwise we could work with invalid pages. While at it also fix the coding style, e.g. drop the pre-initialized return value and use the common define for 2G range. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Vitaly Prosyak <vitaly.prosyak@amd.com> Tested-by: Vitaly Prosyak <vitaly.prosyak@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit c08972f555945cda57b0adb72272a37910153390) Cc: stable@vger.kernel.org
2026-05-27drm/amdgpu/userq: use array instead of list for userq_vasSunil Khatri
Use arrays instead of list for userq_vas since we have fixed no of bos. Also, we dont have to worry to free that memory later since this array would be free along with queue only. Signed-off-by: Sunil Khatri <sunil.khatri@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit ef7dc711a664b0c548ecfdf13a00436b7446b8e7)
2026-05-27drm/amdgpu/userq: move mqd_destroy to later stage to keep core obj validSunil Khatri
mqd_destroy cleans up queue core objects like mqd and fw_object which are needed for any pending fence to signal properly. Signed-off-by: Sunil Khatri <sunil.khatri@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit 4ad65d610096498c8e265615aba42b3c47441bb5)
2026-05-27drm/amdkfd: fix a vulnerability of integer overflow in kfd debuggerEric Huang
get_queue_ids() computes array_size = num_queues * sizeof(uint32_t), which could overflow on 32-bit size_t build. using array_size() instead, it saturates to SIZE_MAX on overflow. Signed-off-by: Eric Huang <jinhuieric.huang@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit 2d57a0475f085c08b49312dfd8edcb461845f285) Cc: stable@vger.kernel.org