------------[ cut here ]------------
WARNING: CPU: 1 PID: 0 at net/can/isotp.c:920 isotp_tx_timer_handler+0xe0/0x148 net/can/isotp.c:920
can-isotp: tx timer state 00000000 cfecho 00000000
Modules linked in:
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.1.0-syzkaller #0
Hardware name: ARM-Versatile Express
Backtrace: frame pointer underflow
[<81753a38>] (dump_backtrace) from [<81753b2c>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:253)
 r7:81cf9638 r6:822228ec r5:60000193 r4:81d07a98
[<81753b14>] (show_stack) from [<8176fde0>] (__dump_stack lib/dump_stack.c:88 [inline])
[<81753b14>] (show_stack) from [<8176fde0>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106)
[<8176fd98>] (dump_stack_lvl) from [<8176fe04>] (dump_stack+0x18/0x1c lib/dump_stack.c:113)
 r5:00000000 r4:82445d14
[<8176fdec>] (dump_stack) from [<817546d4>] (panic+0x11c/0x360 kernel/panic.c:274)
[<817545b8>] (panic) from [<80241718>] (__warn+0x98/0x1a4 kernel/panic.c:621)
 r3:00000001 r2:00000000 r1:00000000 r0:81cf9638
 r7:81601440
[<80241680>] (__warn) from [<817549b4>] (warn_slowpath_fmt+0x9c/0xd4 kernel/panic.c:651)
 r8:00000009 r7:81601440 r6:00000398 r5:81eb1304 r4:81eb12d8
[<8175491c>] (warn_slowpath_fmt) from [<81601440>] (isotp_tx_timer_handler+0xe0/0x148 net/can/isotp.c:920)
 r8:dddde3a0 r7:000000a0 r6:dddde300 r5:00000000 r4:86940278
[<81601360>] (isotp_tx_timer_handler) from [<802e89d4>] (__run_hrtimer kernel/time/hrtimer.c:1685 [inline])
[<81601360>] (isotp_tx_timer_handler) from [<802e89d4>] (__hrtimer_run_queues+0x1b0/0x46c kernel/time/hrtimer.c:1749)
 r5:dddde3e0 r4:86940278
[<802e8824>] (__hrtimer_run_queues) from [<802e8d1c>] (hrtimer_run_softirq+0x8c/0xb8 kernel/time/hrtimer.c:1766)
 r10:828eb980 r9:00000101 r8:00000100 r7:00000000 r6:00000000 r5:20000113
 r4:dddde300
[<802e8c90>] (hrtimer_run_softirq) from [<8020133c>] (__do_softirq+0x16c/0x498 kernel/softirq.c:571)
 r7:df85df08 r6:00000008 r5:00000009 r4:822040a0
[<802011d0>] (__do_softirq) from [<8024a1ac>] (invoke_softirq kernel/softirq.c:445 [inline])
[<802011d0>] (__do_softirq) from [<8024a1ac>] (__irq_exit_rcu kernel/softirq.c:650 [inline])
[<802011d0>] (__do_softirq) from [<8024a1ac>] (__irq_exit_rcu kernel/softirq.c:640 [inline])
[<802011d0>] (__do_softirq) from [<8024a1ac>] (irq_exit+0x9c/0xe8 kernel/softirq.c:674)
 r10:823d85f5 r9:828eb980 r8:00000000 r7:df85df08 r6:81ebb65c r5:81ebb674
 r4:820aac40
[<8024a110>] (irq_exit) from [<817704d8>] (generic_handle_arch_irq+0x7c/0x80 kernel/irq/handle.c:240)
 r5:81ebb674 r4:820aac1c
[<8177045c>] (generic_handle_arch_irq) from [<81725f08>] (call_with_stack+0x1c/0x20 arch/arm/lib/call_with_stack.S:40)
 r9:828eb980 r8:00000000 r7:df85df3c r6:ffffffff r5:60000013 r4:80208f08
[<81725eec>] (call_with_stack) from [<80200b44>] (__irq_svc+0x84/0xac arch/arm/kernel/entry-armv.S:221)
Exception stack(0xdf85df08 to 0xdf85df50)
df00:                   00000001 00000000 009d5c71 8021c220 828eb980 00000001
df20: 828eb980 8220c5d8 00000000 00000000 823d85f5 df85df64 df85df68 df85df58
df40: 80208f04 80208f08 60000013 ffffffff
[<80208ec8>] (arch_cpu_idle) from [<8177a7c4>] (default_idle_call+0x38/0x1b4 kernel/sched/idle.c:109)
[<8177a78c>] (default_idle_call) from [<8028eea8>] (cpuidle_idle_call kernel/sched/idle.c:191 [inline])
[<8177a78c>] (default_idle_call) from [<8028eea8>] (do_idle+0x218/0x2a0 kernel/sched/idle.c:303)
 r7:8220c5d8 r6:828eb980 r5:8220c498 r4:00000001
[<8028ec90>] (do_idle) from [<8028f24c>] (cpu_startup_entry+0x20/0x24 kernel/sched/idle.c:400)
 r10:00000000 r9:412fc0f1 r8:80003010 r7:82445464 r6:828eb980 r5:00000001
 r4:0000009a
[<8028f22c>] (cpu_startup_entry) from [<80210b94>] (secondary_start_kernel+0x138/0x194 arch/arm/kernel/smp.c:481)
[<80210a5c>] (secondary_start_kernel) from [<80201714>] (__enable_mmu+0x0/0xc arch/arm/kernel/head.S:438)
 r7:82445464 r6:30c0387d r5:00000000 r4:82a0c700
Rebooting in 86400 seconds..