8<--- cut here ---
Unable to handle kernel paging request at virtual address 5bd3b000
[5bd3b000] *pgd=80000080005003, *pmd=00000000
Internal error: Oops: 206 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 1 PID: 7602 Comm: kworker/1:0 Not tainted 6.1.0-rc2-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: events free_ipc
PC is at percpu_counter_add_batch+0x38/0x108 lib/percpu_counter.c:87
LR is at __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:66
pc : [<8081020c>]    lr : [<817565a4>]    psr: 20000013
sp : eca25e28  ip : eca25e18  fp : eca25e4c
r10: 84fb3d80  r9 : 00000000  r8 : 84fb3dec
r7 : 7fffffff  r6 : 00000000  r5 : 84b741e8  r4 : 00000000
r3 : 5bd3b000  r2 : 00000000  r1 : 00000000  r0 : 00000001
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Control: 30c5387d  Table: 8512eec0  DAC: 00000000
Register r0 information: non-paged memory
Register r1 information: NULL pointer
Register r2 information: NULL pointer
Register r3 information: non-paged memory
Register r4 information: NULL pointer
Register r5 information: slab kmalloc-cg-1k start 84b74000 pointer offset 488 size 1024
Register r6 information: NULL pointer
Register r7 information: non-paged memory
Register r8 information: slab kmalloc-cg-192 start 84fb3d80 pointer offset 108 size 192
Register r9 information: NULL pointer
Register r10 information: slab kmalloc-cg-192 start 84fb3d80 pointer offset 0 size 192
Register r11 information: 2-page vmalloc region starting at 0xeca24000 allocated at kernel_clone+0x9c/0x3f4 kernel/fork.c:2671
Register r12 information: 2-page vmalloc region starting at 0xeca24000 allocated at kernel_clone+0x9c/0x3f4 kernel/fork.c:2671
Process kworker/1:0 (pid: 7602, stack limit = 0xeca24000)
Stack: (0xeca25e28 to 0xeca26000)
5e20:                   00000000 84fb3dec 84fb3d80 84b74000 84fb3dec 00000000
5e40: eca25e94 eca25e50 80663868 808101e0 7fffffff 802a0f18 00000002 00000001
5e60: eca25e5c e5f8dfe6 84b740b8 00000001 84b740b8 00000002 84b74000 80663760
5e80: 00000000 84fb3d80 eca25ecc eca25e98 8066ed00 8066376c eca25ebc 84b740a0
5ea0: 80810160 84b74000 00000000 ddde5a40 ddde9200 00000090 83ebc500 ddde9215
5ec0: eca25ee4 eca25ed0 80664d40 8066ec98 84b74000 00000000 eca25efc eca25ee8
5ee0: 8066e82c 80664d18 8232cd6c 854f3c00 eca25f44 eca25f00 802611c0 8066e7b4
5f00: 80275518 802a0f18 eca25f2c eca25f18 80262ea4 00000000 ddde5a40 854f3c00
5f20: ddde5a40 854f3c18 ddde5a5c 82204d40 00000008 ddde5a40 eca25f84 eca25f48
5f40: 802615cc 80260fc0 eca25f64 81cffde0 823d7b4e 83ebc500 eca25f84 85409000
5f60: 83ebc500 80261560 854f3c00 85409a00 edabde8c 00000000 eca25fac eca25f88
5f80: 80269b24 8026156c 85409000 80269a38 00000000 00000000 00000000 00000000
5fa0: 00000000 eca25fb0 80200100 80269a44 00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
Backtrace: 
[<808101d4>] (percpu_counter_add_batch) from [<80663868>] (percpu_counter_add_local include/linux/percpu_counter.h:75 [inline])
[<808101d4>] (percpu_counter_add_batch) from [<80663868>] (percpu_counter_sub_local include/linux/percpu_counter.h:225 [inline])
[<808101d4>] (percpu_counter_add_batch) from [<80663868>] (freeque+0x108/0x16c ipc/msg.c:292)
 r9:00000000 r8:84fb3dec r7:84b74000 r6:84fb3d80 r5:84fb3dec r4:00000000
[<80663760>] (freeque) from [<8066ed00>] (free_ipcs+0x74/0x90 ipc/namespace.c:125)
 r10:84fb3d80 r9:00000000 r8:80663760 r7:84b74000 r6:00000002 r5:84b740b8
 r4:00000001
[<8066ec8c>] (free_ipcs) from [<80664d40>] (msg_exit_ns+0x34/0x48 ipc/msg.c:1334)
 r10:ddde9215 r9:83ebc500 r8:00000090 r7:ddde9200 r6:ddde5a40 r5:00000000
 r4:84b74000
[<80664d0c>] (msg_exit_ns) from [<8066e82c>] (free_ipc_ns ipc/namespace.c:138 [inline])
[<80664d0c>] (msg_exit_ns) from [<8066e82c>] (free_ipc+0x84/0xfc ipc/namespace.c:157)
 r5:00000000 r4:84b74000
[<8066e7a8>] (free_ipc) from [<802611c0>] (process_one_work+0x20c/0x5ac kernel/workqueue.c:2289)
 r5:854f3c00 r4:8232cd6c
[<80260fb4>] (process_one_work) from [<802615cc>] (worker_thread+0x6c/0x4e0 kernel/workqueue.c:2436)
 r10:ddde5a40 r9:00000008 r8:82204d40 r7:ddde5a5c r6:854f3c18 r5:ddde5a40
 r4:854f3c00
[<80261560>] (worker_thread) from [<80269b24>] (kthread+0xec/0x11c kernel/kthread.c:376)
 r10:00000000 r9:edabde8c r8:85409a00 r7:854f3c00 r6:80261560 r5:83ebc500
 r4:85409000
[<80269a38>] (kthread) from [<80200100>] (ret_from_fork+0x14/0x34 arch/arm/kernel/entry-common.S:148)
Exception stack(0xeca25fb0 to 0xeca25ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80269a38 r4:85409000
Code: e34801ec eb3d18e0 e5951018 ee1d3f90 (e7918003) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	e34801ec 	movt	r0, #33260	; 0x81ec
   4:	eb3d18e0 	bl	0xf4638c
   8:	e5951018 	ldr	r1, [r5, #24]
   c:	ee1d3f90 	mrc	15, 0, r3, cr13, cr0, {4}
* 10:	e7918003 	ldr	r8, [r1, r3] <-- trapping instruction