------------[ cut here ]------------
WARNING: CPU: 0 PID: 6903 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: 6903 Comm: syz-executor.1 Not tainted 6.1.0-rc3-syzkaller #0
Hardware name: ARM-Versatile Express
Backtrace: frame pointer underflow
[<8173ab88>] (dump_backtrace) from [<8173ac7c>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:253)
 r7:81cfb7a8 r6:822228ec r5:60000193 r4:81d09b90
[<8173ac64>] (show_stack) from [<81756d58>] (__dump_stack lib/dump_stack.c:88 [inline])
[<8173ac64>] (show_stack) from [<81756d58>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106)
[<81756d10>] (dump_stack_lvl) from [<81756d7c>] (dump_stack+0x18/0x1c lib/dump_stack.c:113)
 r5:00000000 r4:82448d14
[<81756d64>] (dump_stack) from [<8173b824>] (panic+0x11c/0x360 kernel/panic.c:274)
[<8173b708>] (panic) from [<80241604>] (__warn+0x98/0x1a4 kernel/panic.c:621)
 r3:00000001 r2:00000000 r1:00000000 r0:81cfb7a8
 r7:815ea7b0
[<8024156c>] (__warn) from [<8173bad0>] (warn_slowpath_fmt+0x68/0xd4 kernel/panic.c:644)
 r8:00000009 r7:815ea7b0 r6:0000038e r5:81eb3870 r4:00000000
[<8173ba6c>] (warn_slowpath_fmt) from [<815ea7b0>] (isotp_tx_timer_handler+0x110/0x130 net/can/isotp.c:910)
 r8:000000a0 r7:dddcd220 r6:dddcd180 r5:868d0278 r4:00000000
[<815ea6a0>] (isotp_tx_timer_handler) from [<802e70c0>] (__run_hrtimer kernel/time/hrtimer.c:1685 [inline])
[<815ea6a0>] (isotp_tx_timer_handler) from [<802e70c0>] (__hrtimer_run_queues+0x1b0/0x46c kernel/time/hrtimer.c:1749)
 r5:dddcd260 r4:868c0278
[<802e6f10>] (__hrtimer_run_queues) from [<802e7408>] (hrtimer_run_softirq+0x8c/0xb8 kernel/time/hrtimer.c:1766)
 r10:850aae00 r9:00000100 r8:00000100 r7:00000000 r6:00000000 r5:20000113
 r4:dddcd180
[<802e737c>] (hrtimer_run_softirq) from [<8020133c>] (__do_softirq+0x16c/0x498 kernel/softirq.c:571)
 r7:ed195fb0 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)
 r10:7ec58544 r9:76bf76d0 r8:00000000 r7:ed195fb0 r6:81ebdb44 r5:81ebdb5c
 r4:820aaa00
[<80249eac>] (irq_exit) from [<81756f18>] (generic_handle_arch_irq+0x7c/0x80 kernel/irq/handle.c:240)
 r5:81ebdb5c r4:820aa9dc
[<81756e9c>] (generic_handle_arch_irq) from [<8170e3a4>] (call_with_stack+0x1c/0x20 arch/arm/lib/call_with_stack.S:40)
 r9:76bf76d0 r8:820a2044 r7:850aae00 r6:ffffffff r5:20000010 r4:00016560
[<8170e388>] (call_with_stack) from [<80200e74>] (__irq_usr+0x74/0x80 arch/arm/kernel/entry-armv.S:436)
Exception stack(0xed195fb0 to 0xed195ff8)
5fa0:                                     ffffffff 00000026 000001b8 00000000
5fc0: 00000000 5cdc992c 00000066 00000000 7ec583d2 76bf76d0 7ec58544 76bf720c
5fe0: 200022d0 200022d0 00016560 00016560 20000010 ffffffff
Rebooting in 86400 seconds..