kernel/linux.git/drivers/platform/x86/dell, branch linux-7.0.y

platform/x86: dell-wmi-sysman: bound enumeration string aggregation

2026-05-23T11:09:12+00:00

[ Upstream commit 3c34471c26abc52a37f5ad90949e2e4b8027eb14 ] populate_enum_data() aggregates firmware-provided value-modifier and possible-value strings into fixed 512-byte struct members. The current code bounds each individual source string but then appends every string and separator with raw strcat() and no remaining-space check. Switch the aggregation loops to a bounded append helper and reject enumeration packages whose combined strings do not fit in the destination buffers. Fixes: e8a60aa7404b ("platform/x86: Introduce support for Systems Management Driver over WMI for Dell Systems") Signed-off-by: Pengpeng Hou Link: https://patch.msgid.link/20260408084501.1-dell-wmi-sysman-v2-pengpeng@iscas.ac.cn [ij: add include] Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen Signed-off-by: Sasha Levin

platform/x86: dell_rbu: avoid uninit value usage in packet_size_write()

2026-05-23T11:09:12+00:00

[ Upstream commit f8fd138c2363c0e2d3235c32bfb4fb5c6474e4ae ] Ensure the temp value has been properly parsed from the user-provided buffer and initialized to be used in later operations. While at it, prefer a convenient kstrtoul() helper. Found by Linux Verification Center (linuxtesting.org) with Svace static analysis tool. Fixes: ad6ce87e5bd4 ("[PATCH] dell_rbu: changes in packet update mechanism") Signed-off-by: Fedor Pchelkin Link: https://patch.msgid.link/20260403134240.604837-1-pchelkin@ispras.ru [ij: add include] Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen Signed-off-by: Sasha Levin

platform/x86: dell-wmi-sysman: Don't hex dump plaintext password data

2026-03-03T12:45:17+00:00

set_new_password() hex dumps the entire buffer, which contains plaintext password data, including current and new passwords. Remove the hex dump to avoid leaking credentials. Fixes: e8a60aa7404b ("platform/x86: Introduce support for Systems Management Driver over WMI for Dell Systems") Cc: stable@vger.kernel.org Signed-off-by: Thorsten Blum Link: https://patch.msgid.link/20260303113050.58127-2-thorsten.blum@linux.dev Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86: alienware-wmi-wmax: Add G-Mode support to m18 laptops

2026-02-23T16:02:15+00:00

Alienware m18 laptops support G-Mode. Therefore, match them with G-Series quirks. Cc: stable@vger.kernel.org Tested-by: Olexa Bilaniuk Signed-off-by: Kurt Borja Link: https://patch.msgid.link/20260129-m18-gmode-v1-1-48be521487b9@gmail.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86: dell-wmi: Add audio/mic mute key codes

2026-02-23T15:56:12+00:00

Add audio/mic mute key codes found in Alienware m18 r1 AMD. Cc: stable@vger.kernel.org Tested-by: Olexa Bilaniuk Suggested-by: Olexa Bilaniuk Signed-off-by: Kurt Borja Acked-by: Pali Rohár Link: https://patch.msgid.link/20260207-mute-keys-v2-1-c55e5471c9c1@gmail.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses

2026-02-22T16:26:33+00:00

Conversion performed via this Coccinelle script: // SPDX-License-Identifier: GPL-2.0-only // Options: --include-headers-for-types --all-includes --include-headers --keep-comments virtual patch @gfp depends on patch && !(file in "tools") && !(file in "samples")@ identifier ALLOC = {kmalloc_obj,kmalloc_objs,kmalloc_flex, kzalloc_obj,kzalloc_objs,kzalloc_flex, kvmalloc_obj,kvmalloc_objs,kvmalloc_flex, kvzalloc_obj,kvzalloc_objs,kvzalloc_flex}; @@ ALLOC(... - , GFP_KERNEL ) $ make coccicheck MODE=patch COCCI=gfp.cocci Build and boot tested x86_64 with Fedora 42's GCC and Clang: Linux version 6.19.0+ (user@host) (gcc (GCC) 15.2.1 20260123 (Red Hat 15.2.1-7), GNU ld version 2.44-12.fc42) #1 SMP PREEMPT_DYNAMIC 1970-01-01 Linux version 6.19.0+ (user@host) (clang version 20.1.8 (Fedora 20.1.8-4.fc42), LLD 20.1.8) #1 SMP PREEMPT_DYNAMIC 1970-01-01 Signed-off-by: Kees Cook Signed-off-by: Linus Torvalds

Convert more 'alloc_obj' cases to default GFP_KERNEL arguments

2026-02-22T04:03:00+00:00

This converts some of the visually simpler cases that have been split over multiple lines. I only did the ones that are easy to verify the resulting diff by having just that final GFP_KERNEL argument on the next line. Somebody should probably do a proper coccinelle script for this, but for me the trivial script actually resulted in an assertion failure in the middle of the script. I probably had made it a bit _too_ trivial. So after fighting that far a while I decided to just do some of the syntactically simpler cases with variations of the previous 'sed' scripts. The more syntactically complex multi-line cases would mostly really want whitespace cleanup anyway. Signed-off-by: Linus Torvalds

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

platform/x86: dell-lis3lv02d: Add Latitude 5400

2025-12-22T14:11:35+00:00

Add accelerometer address 0x29 for Dell Latitude 5400. The address is verified as below: $ cat /sys/class/dmi/id/product_name Latitude 5400 $ grep -H '' /sys/bus/pci/drivers/i801_smbus/0000\:00*/i2c-*/name /sys/bus/pci/drivers/i801_smbus/0000:00:1f.4/i2c-10/name:SMBus I801 adapter at 0000:00:1f.4 $ i2cdetect 10 WARNING! This program can confuse your I2C bus, cause data loss and worse! I will probe file /dev/i2c-10. I will probe address range 0x08-0x77. Continue? [Y/n] Y 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: 08 -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- UU -- -- -- -- -- -- 30: 30 -- -- -- -- 35 UU UU -- -- -- -- -- -- -- -- 40: -- -- -- -- 44 -- -- -- -- -- -- -- -- -- -- -- 50: UU -- 52 -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- -- $ xargs -n1 -a /proc/cmdline | grep ^dell_lis3lv02d dell_lis3lv02d.probe_i2c_addr=1 $ dmesg | grep lis3lv02d ... [ 206.012411] i2c i2c-10: Probing for lis3lv02d on address 0x29 [ 206.013727] i2c i2c-10: Detected lis3lv02d on address 0x29, please report this upstream to platform-driver-x86@vger.kernel.org so that a quirk can be added [ 206.240841] lis3lv02d_i2c 10-0029: supply Vdd not found, using dummy regulator [ 206.240868] lis3lv02d_i2c 10-0029: supply Vdd_IO not found, using dummy regulator [ 206.261258] lis3lv02d: 8 bits 3DC sensor found [ 206.346722] input: ST LIS3LV02DL Accelerometer as /devices/faux/lis3lv02d/input/input17 $ cat /sys/class/input/input17/name ST LIS3LV02DL Accelerometer Signed-off-by: Dmytro Bagrii Reviewed-by: Hans de Goede Link: https://patch.msgid.link/20251128161523.6224-1-dimich.dmb@gmail.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen