Reading values from SPS30 sensor leads to Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: sps30_read_raw

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
38/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
c, linux
Domain
embedded-iot, operating-systems

Research direction

Start with the SPS30 driver's sps30_read_raw and sps30_trigger_handler paths, reproducing the failure by reading in_massconcentration_pm4_input on the Raspberry Pi setup described. Compare that path with the working PM1 and PM2.5 reads; done means the requested sensor values can be read without a kernel stack-corruption panic.

Written by the indexing model from the issue text.

Description

Describe the bug

Trying to read specific values from sps30 (https://sensirion.com/products/catalog/SPS30/) sensor leads to kernel panic:

[ 105.317088] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: sps30_read_raw+0x1c0/0x1c0 [sps30]

Reading from in_massconcentration_pm1_input and in_massconcentration_pm2p5_input works fine,
panic on in_massconcentration_pm4_input

Steps to reproduce the behaviour

Configure Sensirion sps30 sensor on i2c, try to read sensor values.

Device (s)

Raspberry Pi 4 Mod. B

System

Raspberry Pi reference 2023-10-10
Generated using pi-gen, https://github.com/RPi-Distro/pi-gen, 962bf483c8f326405794827cce8c0313fd5880a8, stage2
Oct 17 2023 15:39:16
Copyright (c) 2012 Broadcom
version 30f0c5e4d076da3ab4f341d88e7d505760b93ad7 (clean) (release) (start)
Linux raspberrypi 6.1.0-rpi6-rpi-v8 #1 SMP PREEMPT Debian 1:6.1.58-1+rpt2 (2023-10-27) aarch64 GNU/Linux

Logs

[ 1340.212930] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: sps30_read_raw+0x1c0/0x1c0 [sps30]
[ 1340.224134] CPU: 1 PID: 920 Comm: cat Tainted: G C 6.1.0-rpi6-rpi-v8 #1 Debian 1:6.1.58-1+rpt2
[ 1340.234433] Hardware name: Raspberry Pi 4 Model B Rev 1.5 (DT)
[ 1340.240383] Call trace:
[ 1340.242881] dump_backtrace.part.0+0xec/0x100
[ 1340.247338] show_stack+0x20/0x30
[ 1340.250726] dump_stack_lvl+0x88/0xb4
[ 1340.254472] dump_stack+0x18/0x34
[ 1340.257860] panic+0x1a0/0x370
[ 1340.260984] __stack_chk_fail+0x28/0x30
[ 1340.264904] sps30_trigger_handler+0x0/0xdc [sps30]
[ 1340.269897] iio_read_channel_info+0xe0/0xf4 [industrialio]
[ 1340.275632] dev_attr_show+0x28/0x64
[ 1340.279293] sysfs_kf_seq_show+0x94/0x110
[ 1340.283388] kernfs_seq_show+0x34/0x40
[ 1340.287223] seq_read_iter+0x16c/0x45c
[ 1340.291054] kernfs_fop_read_iter+0x148/0x1b4
[ 1340.295508] vfs_read+0x214/0x2c0
[ 1340.298898] ksys_read+0x78/0x10c
[ 1340.302284] __arm64_sys_read+0x24/0x30
[ 1340.306202] invoke_syscall+0x50/0x120
[ 1340.310036] el0_svc_common.constprop.0+0x68/0x124
[ 1340.314932] do_el0_svc+0x34/0xd0
[ 1340.318324] el0_svc+0x30/0x9c
[ 1340.321446] el0t_64_sync_handler+0xf4/0x120
[ 1340.325808] el0t_64_sync+0x18c/0x190
[ 1340.332137] SMP: stopping secondary CPUs
[ 1340.338700] Kernel Offset: 0x16e2800000 from 0xffffffc008000000
[ 1340.346353] PHYS_OFFSET: 0x0
[ 1340.350587] CPU features: 0x80000,2013c080,0000421b
[ 1340.356847] Memory Limit: none
[ 1340.361237] ---[ end Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: sps30_read_raw+0x1c0/0x1c0 [sps30] ]---

Additional context

No response

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