------------[ cut here ]------------
WARNING: CPU: 1 PID: 9052 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x368/0x3f0 drivers/gpu/drm/vkms/vkms_crtc.c:21
Modules linked in:
CPU: 1 PID: 9052 Comm: syz-executor.0 Not tainted 5.10.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:vkms_vblank_simulate+0x368/0x3f0 drivers/gpu/drm/vkms/vkms_crtc.c:21
Code: 85 9e 00 00 00 49 8b 95 b8 01 00 00 4c 89 e1 bf 02 00 00 00 48 c7 c6 60 36 d6 89 e8 b2 ae ef ff e9 e4 fe ff ff e8 18 42 2c fd <0f> 0b e9 3e fd ff ff e8 4c 74 6f fd e9 cf fd ff ff 4c 89 f7 e8 3f
RSP: 0018:ffffc90000d90de8 EFLAGS: 00010046
RAX: 0000000000010001 RBX: ffff8880181a5e48 RCX: 0000000000000000
RDX: ffff888012220000 RSI: ffffffff844701a8 RDI: 0000000000000003
RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000000000
R10: ffffffff8446fee3 R11: 0000000000000000 R12: ffff8880181a4d40
R13: 0000000000fe4c00 R14: ffff8880b9d26a00 R15: ffffffff8446fe40
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0063) knlGS:00000000093a8900
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00005618e9683588 CR3: 000000002258a000 CR4: 00000000001506e0
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_interrupt+0x334/0x960 kernel/time/hrtimer.c:1645
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x550 arch/x86/kernel/apic/apic.c:1102
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_sysvec_on_irqstack arch/x86/include/asm/irq_stack.h:37 [inline]
 run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:89 [inline]
 sysvec_apic_timer_interrupt+0xbd/0x100 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628
RIP: 0010:console_unlock+0x807/0xc00 kernel/printk/printk.c:2562
Code: a0 fe 69 8b e8 aa 94 fd ff e8 65 40 00 00 31 ff 4c 89 ee e8 4b fd 17 00 4d 85 ed 0f 85 3c 02 00 00 e8 4d f5 17 00 ff 34 24 9d <8b> 5c 24 34 31 ff 89 de e8 bc fc 17 00 85 db 0f 84 9a f9 ff ff e8
RSP: 0018:ffffc90002246c68 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888012220000 RSI: ffffffff815b4e73 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8f5107a7
R10: fffffbfff1ea20f4 R11: 0000000000000000 R12: ffffffff84afa960
R13: 0000000000000200 R14: dffffc0000000000 R15: ffffc90002246cc8
 vprintk_emit+0x198/0x400 kernel/printk/printk.c:2074
 vprintk_func+0x8d/0x1e0 kernel/printk/printk_safe.c:393
 printk+0xba/0xed kernel/printk/printk.c:2122
 batadv_hardif_enable_interface.cold+0x41/0xe9 net/batman-adv/hard-interface.c:781
 batadv_softif_slave_add+0x92/0x150 net/batman-adv/soft-interface.c:858
 do_set_master+0x1c8/0x220 net/core/rtnetlink.c:2519
 do_setlink+0x917/0x3ab0 net/core/rtnetlink.c:2715
 __rtnl_newlink+0xc1c/0x1750 net/core/rtnetlink.c:3376
 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3502
 rtnetlink_rcv_msg+0x498/0xb80 net/core/rtnetlink.c:5564
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330
 netlink_sendmsg+0x907/0xe40 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:672
 __sys_sendto+0x21c/0x320 net/socket.c:1975
 __do_compat_sys_socketcall+0x47f/0x660 net/compat.c:476
 do_syscall_32_irqs_on arch/x86/entry/common.c:78 [inline]
 __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:137
 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:160
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fc9549
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000ff8ad840 EFLAGS: 00000286 ORIG_RAX: 0000000000000066
RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00000000ff8ad858
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000