------------[ cut here ]------------
WARNING: CPU: 0 PID: 23355 at net/can/isotp.c:853 isotp_tx_timer_handler+0xb47/0xed0
Modules linked in:
CPU: 0 PID: 23355 Comm: syz-executor.5 Not tainted 5.15.123-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
RIP: 0010:isotp_tx_timer_handler+0xb47/0xed0 net/can/isotp.c:853
Code: 00 00 00 00 00 00 49 81 c5 a8 40 00 00 31 db 4c 89 ef be 01 00 00 00 ba 01 00 00 00 31 c9 e8 70 cc 26 f8 eb 57 e8 89 58 47 f8 <0f> 0b eb 4c e8 80 58 47 f8 eb 45 4c 8b 74 24 30 49 81 c6 a8 05 00
RSP: 0018:ffffc90000007b20 EFLAGS: 00010246
RAX: ffffffff8938a7e7 RBX: 0000000000000000 RCX: ffff888024281dc0
RDX: 0000000080000101 RSI: ffffffff8db298c0 RDI: 0000000000000000
RBP: ffffc90000007c70 R08: 0000000000000005 R09: ffffffff89389d7b
R10: 0000000000000003 R11: ffff888024281dc0 R12: 0000000000000000
R13: ffff888024b30578 R14: ffff888024b325fc R15: dffffc0000000000
FS:  00007fd5ac04d6c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd5ac00ac98 CR3: 0000000079bb2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1749
 hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1766
 __do_softirq+0x3b3/0x93a kernel/softirq.c:558
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x155/0x240 kernel/softirq.c:636
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:finish_lock_switch+0x91/0x100 kernel/sched/core.c:4781
Code: 45 31 c9 68 47 53 59 81 e8 fc 19 09 00 48 83 c4 08 4c 89 ff e8 40 d9 fe ff 66 90 4c 89 ff e8 a6 14 cc 08 e8 01 21 2d 00 fb 5b <41> 5c 41 5d 41 5e 41 5f c3 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 87
RSP: 0018:ffffc9000bab7298 EFLAGS: 00000286
RAX: e2179b0da5cc4b00 RBX: ffff88808fff5974 RCX: ffffffff913cd003
RDX: dffffc0000000000 RSI: ffffffff8a8b01e0 RDI: ffffffff8ad86b80
RBP: ffffc9000bab7310 R08: ffffffff818674b0 R09: ffffed10173472d9
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff11017347483 R14: ffff8880b9a3a418 R15: ffff8880b9a396c0
 finish_task_switch+0x134/0x630 kernel/sched/core.c:4898
 context_switch kernel/sched/core.c:5029 [inline]
 __schedule+0x12cc/0x4590 kernel/sched/core.c:6372
 schedule+0x11b/0x1f0 kernel/sched/core.c:6455
 schedule_timeout+0xac/0x300 kernel/time/timer.c:1860
 unix_wait_for_peer+0x24b/0x330 net/unix/af_unix.c:1315
 unix_dgram_sendmsg+0x1441/0x2090 net/unix/af_unix.c:1913
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg net/socket.c:724 [inline]
 ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2412
 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2466
 __sys_sendmmsg+0x2bf/0x560 net/socket.c:2552
 __do_sys_sendmmsg net/socket.c:2581 [inline]
 __se_sys_sendmmsg net/socket.c:2578 [inline]
 __x64_sys_sendmmsg+0x9c/0xb0 net/socket.c:2578
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fd5adacbae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd5ac04d0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007fd5adbeaf80 RCX: 00007fd5adacbae9
RDX: 0000000000000318 RSI: 00000000200bd000 RDI: 0000000000000006
RBP: 00007fd5adb1747a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fd5adbeaf80 R15: 00007fffd66dfd38
 </TASK>
----------------
Code disassembly (best guess):
   0:	45 31 c9             	xor    %r9d,%r9d
   3:	68 47 53 59 81       	push   $0xffffffff81595347
   8:	e8 fc 19 09 00       	call   0x91a09
   d:	48 83 c4 08          	add    $0x8,%rsp
  11:	4c 89 ff             	mov    %r15,%rdi
  14:	e8 40 d9 fe ff       	call   0xfffed959
  19:	66 90                	xchg   %ax,%ax
  1b:	4c 89 ff             	mov    %r15,%rdi
  1e:	e8 a6 14 cc 08       	call   0x8cc14c9
  23:	e8 01 21 2d 00       	call   0x2d2129
  28:	fb                   	sti
  29:	5b                   	pop    %rbx
* 2a:	41 5c                	pop    %r12 <-- trapping instruction
  2c:	41 5d                	pop    %r13
  2e:	41 5e                	pop    %r14
  30:	41 5f                	pop    %r15
  32:	c3                   	ret
  33:	44 89 f1             	mov    %r14d,%ecx
  36:	80 e1 07             	and    $0x7,%cl
  39:	80 c1 03             	add    $0x3,%cl
  3c:	38 c1                	cmp    %al,%cl
  3e:	7c 87                	jl     0xffffffc7