[Nut-upsuser] BUG: KFENCE: memory corruption in free_async+0x1d8/0x1e0

[Dirk Schneider]

Hi,

i run NUT on a Raspberry Pi 3 Model B and after the latest OS Update i get
the following Error from KFENCE, the current OS Version is the first with
KFENCE so it possible that this Problem has was always existing.

[21963.079554]
==================================================================
[21963.079580] BUG: KFENCE: memory corruption in free_async+0x1d8/0x1e0
[21963.079580]
[21963.079604] Corrupted memory at 0x0000000025448a9e [ ! ! ! . . . . . . .
. . . . . . ] (in kfence-#183):
[21963.079711]  free_async+0x1d8/0x1e0
[21963.079728]  usbdev_ioctl+0x138/0x1c40
[21963.079744]  __arm64_sys_ioctl+0xd0/0x130
[21963.079769]  invoke_syscall+0x7c/0x130
[21963.079793]  el0_svc_common.constprop.0+0x6c/0x160
[21963.079815]  do_el0_svc+0x38/0x120
[21963.079835]  el0_svc+0x34/0xc0
[21963.079856]  el0t_64_sync_handler+0x11c/0x150
[21963.079876]  el0t_64_sync+0x198/0x19c
[21963.079892]
[21963.079899] kfence-#183: 0x0000000070088b17-0x00000000bed184b6, size=5,
cache=kmalloc-128
[21963.079899]
[21963.079916] allocated by task 1647 on cpu 2 at 21963.076359s:
[21963.079946]  proc_do_submiturb+0xdb0/0x1000
[21963.079962]  usbdev_ioctl+0x12c0/0x1c40
[21963.079977]  __arm64_sys_ioctl+0xd0/0x130
[21963.079999]  invoke_syscall+0x7c/0x130
[21963.080019]  el0_svc_common.constprop.0+0x6c/0x160
[21963.080040]  do_el0_svc+0x38/0x120
[21963.080060]  el0_svc+0x34/0xc0
[21963.080078]  el0t_64_sync_handler+0x11c/0x150
[21963.080097]  el0t_64_sync+0x198/0x19c
[21963.080111]
[21963.080117] freed by task 1647 on cpu 2 at 21963.079503s:
[21963.080155]  free_async+0x1d8/0x1e0
[21963.080170]  usbdev_ioctl+0x138/0x1c40
[21963.080184]  __arm64_sys_ioctl+0xd0/0x130
[21963.080206]  invoke_syscall+0x7c/0x130
[21963.080226]  el0_svc_common.constprop.0+0x6c/0x160
[21963.080247]  do_el0_svc+0x38/0x120
[21963.080267]  el0_svc+0x34/0xc0
[21963.080285]  el0t_64_sync_handler+0x11c/0x150
[21963.080304]  el0t_64_sync+0x198/0x19c
[21963.080318]
[21963.080327] CPU: 2 PID: 1647 Comm: usbhid-ups Tainted: G         C O
  6.1.63 #1
[21963.080345] Hardware name: Raspberry Pi 3 Model B Rev 1.2 (DT)
[21963.080354]
==================================================================

The UPS is an Cyber Power Systems BR700ELCD with the following driver
configuration

driver = usbhid-ups
port = /dev/ttyUSB0
desc = "BR700ELCD"
pollinterval=10
pollfreq=15

Is that an Configuration ore Hardware issue?

Kind regards
Dirk
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