------------[ cut here ]------------
WARNING: CPU: 0 PID: 7 at net/can/isotp.c:910 isotp_tx_timer_handler+0x110/0x130 net/can/isotp.c:910
Modules linked in:
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 7 Comm: kworker/0:0 Not tainted 6.1.0-rc3-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: events kfree_rcu_monitor
Backtrace: frame pointer underflow
[<81739a28>] (dump_backtrace) from [<81739b1c>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:253)
 r7:81cfea70 r6:822228ec r5:60000193 r4:81d0ce58
[<81739b04>] (show_stack) from [<81755bf8>] (__dump_stack lib/dump_stack.c:88 [inline])
[<81739b04>] (show_stack) from [<81755bf8>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106)
[<81755bb0>] (dump_stack_lvl) from [<81755c1c>] (dump_stack+0x18/0x1c lib/dump_stack.c:113)
 r5:00000000 r4:82448d14
[<81755c04>] (dump_stack) from [<8173a6c4>] (panic+0x11c/0x360 kernel/panic.c:274)
[<8173a5a8>] (panic) from [<80241604>] (__warn+0x98/0x1a4 kernel/panic.c:621)
 r3:00000001 r2:00000000 r1:dddcc54c r0:81cfea70
 r7:815e9658
[<8024156c>] (__warn) from [<8173a970>] (warn_slowpath_fmt+0x68/0xd4 kernel/panic.c:644)
 r8:00000009 r7:815e9658 r6:0000038e r5:81eb6b14 r4:00000000
[<8173a90c>] (warn_slowpath_fmt) from [<815e9658>] (isotp_tx_timer_handler+0x110/0x130 net/can/isotp.c:910)
 r8:000000a0 r7:dddcd220 r6:dddcd180 r5:85450278 r4:00000000
[<815e9548>] (isotp_tx_timer_handler) from [<802e70d0>] (__run_hrtimer kernel/time/hrtimer.c:1685 [inline])
[<815e9548>] (isotp_tx_timer_handler) from [<802e70d0>] (__hrtimer_run_queues+0x1b0/0x46c kernel/time/hrtimer.c:1749)
 r5:dddcd260 r4:85440278
[<802e6f20>] (__hrtimer_run_queues) from [<802e7418>] (hrtimer_run_softirq+0x8c/0xb8 kernel/time/hrtimer.c:1766)
 r10:828e4500 r9:00000100 r8:00000100 r7:00000000 r6:00000000 r5:20000113
 r4:dddcd180
[<802e738c>] (hrtimer_run_softirq) from [<8020133c>] (__do_softirq+0x16c/0x498 kernel/softirq.c:571)
 r7:df835e88 r6:00000008 r5:00000009 r4:822040a0
[<802011d0>] (__do_softirq) from [<80249f48>] (invoke_softirq kernel/softirq.c:445 [inline])
[<802011d0>] (__do_softirq) from [<80249f48>] (__irq_exit_rcu kernel/softirq.c:650 [inline])
[<802011d0>] (__do_softirq) from [<80249f48>] (__irq_exit_rcu kernel/softirq.c:640 [inline])
[<802011d0>] (__do_softirq) from [<80249f48>] (irq_exit+0x9c/0xe8 kernel/softirq.c:674)
 r10:dddd8205 r9:828e4500 r8:00000000 r7:df835e88 r6:81ec0de8 r5:81ec0e00
 r4:820aaa00
[<80249eac>] (irq_exit) from [<81755db8>] (generic_handle_arch_irq+0x7c/0x80 kernel/irq/handle.c:240)
 r5:81ec0e00 r4:820aa9dc
[<81755d3c>] (generic_handle_arch_irq) from [<8170d254>] (call_with_stack+0x1c/0x20 arch/arm/lib/call_with_stack.S:40)
 r9:828e4500 r8:00000000 r7:df835ebc r6:ffffffff r5:60000113 r4:802c878c
[<8170d238>] (call_with_stack) from [<80200b44>] (__irq_svc+0x84/0xac arch/arm/kernel/entry-armv.S:221)
Exception stack(0xdf835e88 to 0xdf835ed0)
5e80:                   00000000 60000113 00000000 00000000 dddcc828 dddcc824
5ea0: dddcc824 60000113 00000000 8220c4ac dddd8205 df835efc df835ec8 df835ed8
5ec0: 8176085c 802c878c 60000113 ffffffff
[<802c86dc>] (kfree_rcu_monitor) from [<802611c0>] (process_one_work+0x20c/0x5ac kernel/workqueue.c:2289)
 r9:828e4500 r8:00000000 r7:dddd8200 r6:dddd4a40 r5:8280b900 r4:dddcc828
[<80260fb4>] (process_one_work) from [<802615cc>] (worker_thread+0x6c/0x4e0 kernel/workqueue.c:2436)
 r10:dddd4a40 r9:00000008 r8:82204d40 r7:dddd4a5c r6:8280b918 r5:dddd4a40
 r4:8280b900
[<80261560>] (worker_thread) from [<80269b24>] (kthread+0xec/0x11c kernel/kthread.c:376)
 r10:00000000 r9:df819e54 r8:82a0c100 r7:8280b900 r6:80261560 r5:828e4500
 r4:82a0c040
[<80269a38>] (kthread) from [<80200100>] (ret_from_fork+0x14/0x34 arch/arm/kernel/entry-common.S:148)
Exception stack(0xdf835fb0 to 0xdf835ff8)
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 r4:82a0c040
Rebooting in 86400 seconds..