------------[ cut here ]------------ WARNING: CPU: 0 PID: 26575 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: 26575 Comm: syz-executor.1 Not tainted 6.1.0-rc3-syzkaller #0 Hardware name: ARM-Versatile Express 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:df801cf0 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 r5:85d10278 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 r4:85d00278 [<802e6f20>] (__hrtimer_run_queues) from [<802e7418>] (hrtimer_run_softirq+0x8c/0xb8 kernel/time/hrtimer.c:1766) r10:83c92280 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:ee079fb0 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) r10:7efe3544 r9:76bfd6d0 r8:00000000 r7:ee079fb0 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) r9:76bfd6d0 r8:820a2044 r7:83c92280 r6:ffffffff r5:20000010 r4:00016560 [<8170d238>] (call_with_stack) from [<80200e74>] (__irq_usr+0x74/0x80 arch/arm/kernel/entry-armv.S:436) Exception stack(0xee079fb0 to 0xee079ff8) 9fa0: ffffffff 00000004 000001b8 00000000 9fc0: 00000000 00000000 00000000 00000000 7efe33d2 76bfd6d0 7efe3544 76bfd20c 9fe0: 20001310 20001310 00016560 00016560 20000010 ffffffff Rebooting in 86400 seconds..