------------[ cut here ]------------
WARNING: CPU: 0 PID: 12328 at net/can/isotp.c:835 isotp_tx_timer_handler+0x65f/0xba0 net/can/isotp.c:835
Modules linked in:
CPU: 0 PID: 12328 Comm: systemd-udevd Not tainted 5.10.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:isotp_tx_timer_handler+0x65f/0xba0 net/can/isotp.c:835
Code: c1 e8 03 83 e1 07 0f b6 04 28 38 c8 7f 08 84 c0 0f 85 b8 04 00 00 41 88 54 24 05 e9 07 fb ff ff 40 84 ed 75 21 e8 e1 25 53 f9 <0f> 0b 45 31 e4 e8 d7 25 53 f9 44 89 e0 48 83 c4 48 5b 5d 41 5c 41
RSP: 0018:ffffc90000007dc0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88801bb68518 RCX: ffffffff88230eae
RDX: ffff88801c0b9bc0 RSI: ffffffff882314af RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8e0f3b4f
R10: 0000000000000004 R11: 0000000000000001 R12: 0000000000000000
R13: ffff8880b9c26c80 R14: ffff8880b9c26a00 R15: ffff88801bb68000
FS:  00007f079a3e48c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f921e471db8 CR3: 000000002985f000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __run_hrtimer kernel/time/hrtimer.c:1519 [inline]
 __hrtimer_run_queues+0x609/0xea0 kernel/time/hrtimer.c:1583
 hrtimer_run_softirq+0x19d/0x390 kernel/time/hrtimer.c:1600
 __do_softirq+0x2cb/0xad5 kernel/softirq.c:298
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:393 [inline]
 __irq_exit_rcu kernel/softirq.c:423 [inline]
 irq_exit_rcu+0x18a/0x1b0 kernel/softirq.c:435
 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628
RIP: 0010:preempt_count_add+0x3f/0x140 kernel/sched/core.c:4736
Code: 53 83 e0 07 89 fb 48 c1 e9 03 83 c0 03 0f b6 14 11 38 d0 7c 08 84 d2 0f 85 e1 00 00 00 8b 15 48 57 d0 0e 65 01 1d 21 8c b2 7e <85> d2 75 11 65 8b 05 16 8c b2 7e 0f b6 c0 3d f4 00 00 00 7f 64 65
RSP: 0018:ffffc900027b7578 EFLAGS: 00000282
RAX: 0000000000000003 RBX: 0000000000000001 RCX: 1ffffffff203f75c
RDX: 0000000000000000 RSI: ffffffff83947e18 RDI: 0000000000000001
RBP: 0000000000000001 R08: ffffffff8eb5df3e R09: 0000000000000001
R10: fffff520004f6eda R11: 0000000000000001 R12: ffffc900027b76c0
R13: 0000000000000000 R14: ffff88801c0b9bc0 R15: ffffc900027b7678
 unwind_next_frame+0x11f/0x2610 arch/x86/kernel/unwind_orc.c:428
 arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48
 kasan_set_track mm/kasan/common.c:56 [inline]
 __kasan_kmalloc.constprop.0+0xc2/0xd0 mm/kasan/common.c:461
 slab_post_alloc_hook mm/slab.h:512 [inline]
 slab_alloc_node mm/slub.c:2889 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 __kmalloc+0x15a/0x2e0 mm/slub.c:3964
 kmalloc include/linux/slab.h:557 [inline]
 kzalloc include/linux/slab.h:682 [inline]
 tomoyo_encode2.part.0+0xe9/0x3a0 security/tomoyo/realpath.c:45
 tomoyo_encode2 security/tomoyo/realpath.c:31 [inline]
 tomoyo_encode+0x28/0x50 security/tomoyo/realpath.c:80
 tomoyo_realpath_from_path+0x186/0x620 security/tomoyo/realpath.c:288
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_number_perm+0x1ff/0x6c0 security/tomoyo/file.c:723
 security_path_chmod+0xe0/0x150 security/security.c:1153
 chmod_common+0x156/0x3f0 fs/open.c:578
 vfs_fchmod fs/open.c:598 [inline]
 __do_sys_fchmod fs/open.c:607 [inline]
 __se_sys_fchmod fs/open.c:601 [inline]
 __x64_sys_fchmod+0x10e/0x190 fs/open.c:601
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f07992575c7
Code: 73 01 c3 48 8b 0d d1 d8 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 5b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 d8 2b 00 f7 d8 64 89 01 48
RSP: 002b:00007ffea001a7b8 EFLAGS: 00000206 ORIG_RAX: 000000000000005b
RAX: ffffffffffffffda RBX: 0000561a10cab3c0 RCX: 00007f07992575c7
RDX: 0000000000000000 RSI: 00000000000001a4 RDI: 000000000000000f
RBP: 00007ffea001a880 R08: 0000561a10cb0420 R09: 0000000000000230
R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea001a7c0
R13: 0000000000000001 R14: 0000000000000000 R15: 000000000000000e