last executing test programs:
1.79385799s ago: executing program 5:
madvise(0x0, 0x0, 0x0)
1.75321504s ago: executing program 5:
eventfd(0x0)
1.702973732s ago: executing program 5:
getrusage(0x0, &(0x7f0000000000))
1.637685589s ago: executing program 5:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/audio1', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/audio1', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/audio1', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/audio1', 0x800, 0x0)
1.295201504s ago: executing program 3:
restart_syscall()
1.281336343s ago: executing program 4:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/selinux/member', 0x2, 0x0)
1.266990421s ago: executing program 0:
syz_open_dev$vcsn(&(0x7f0000000040), 0x0, 0x0)
syz_open_dev$vcsn(&(0x7f0000000080), 0x0, 0x1)
syz_open_dev$vcsn(&(0x7f00000000c0), 0x0, 0x2)
syz_open_dev$vcsn(&(0x7f0000000100), 0x0, 0x800)
syz_open_dev$vcsn(&(0x7f0000000140), 0x1, 0x0)
syz_open_dev$vcsn(&(0x7f0000000180), 0x1, 0x1)
syz_open_dev$vcsn(&(0x7f00000001c0), 0x1, 0x2)
syz_open_dev$vcsn(&(0x7f0000000200), 0x1, 0x800)
syz_open_dev$vcsn(&(0x7f0000000240), 0x2, 0x0)
syz_open_dev$vcsn(&(0x7f0000000280), 0x2, 0x1)
syz_open_dev$vcsn(&(0x7f00000002c0), 0x2, 0x2)
syz_open_dev$vcsn(&(0x7f0000000300), 0x2, 0x800)
syz_open_dev$vcsn(&(0x7f0000000340), 0x3, 0x0)
syz_open_dev$vcsn(&(0x7f0000000380), 0x3, 0x1)
syz_open_dev$vcsn(&(0x7f00000003c0), 0x3, 0x2)
syz_open_dev$vcsn(&(0x7f0000000400), 0x3, 0x800)
syz_open_dev$vcsn(&(0x7f0000000440), 0x4, 0x0)
syz_open_dev$vcsn(&(0x7f0000000480), 0x4, 0x1)
syz_open_dev$vcsn(&(0x7f00000004c0), 0x4, 0x2)
syz_open_dev$vcsn(&(0x7f0000000500), 0x4, 0x800)
1.259918664s ago: executing program 3:
syz_open_dev$dri(&(0x7f0000000040), 0x0, 0x0)
syz_open_dev$dri(&(0x7f0000000080), 0x0, 0x1)
syz_open_dev$dri(&(0x7f00000000c0), 0x0, 0x2)
syz_open_dev$dri(&(0x7f0000000100), 0x0, 0x800)
syz_open_dev$dri(&(0x7f0000000140), 0x1, 0x0)
syz_open_dev$dri(&(0x7f0000000180), 0x1, 0x1)
syz_open_dev$dri(&(0x7f00000001c0), 0x1, 0x2)
syz_open_dev$dri(&(0x7f0000000200), 0x1, 0x800)
syz_open_dev$dri(&(0x7f0000000240), 0x2, 0x0)
syz_open_dev$dri(&(0x7f0000000280), 0x2, 0x1)
syz_open_dev$dri(&(0x7f00000002c0), 0x2, 0x2)
syz_open_dev$dri(&(0x7f0000000300), 0x2, 0x800)
syz_open_dev$dri(&(0x7f0000000340), 0x3, 0x0)
syz_open_dev$dri(&(0x7f0000000380), 0x3, 0x1)
syz_open_dev$dri(&(0x7f00000003c0), 0x3, 0x2)
syz_open_dev$dri(&(0x7f0000000400), 0x3, 0x800)
syz_open_dev$dri(&(0x7f0000000440), 0x4, 0x0)
syz_open_dev$dri(&(0x7f0000000480), 0x4, 0x1)
syz_open_dev$dri(&(0x7f00000004c0), 0x4, 0x2)
syz_open_dev$dri(&(0x7f0000000500), 0x4, 0x800)
1.237990016s ago: executing program 0:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/fs/smackfs/ptrace', 0x2, 0x0)
1.227387828s ago: executing program 4:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/hpet', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/hpet', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/hpet', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/hpet', 0x800, 0x0)
1.198439278s ago: executing program 0:
syz_open_dev$hiddev(&(0x7f0000000040), 0x0, 0x0)
syz_open_dev$hiddev(&(0x7f0000000080), 0x0, 0x1)
syz_open_dev$hiddev(&(0x7f00000000c0), 0x0, 0x2)
syz_open_dev$hiddev(&(0x7f0000000100), 0x0, 0x800)
syz_open_dev$hiddev(&(0x7f0000000140), 0x1, 0x0)
syz_open_dev$hiddev(&(0x7f0000000180), 0x1, 0x1)
syz_open_dev$hiddev(&(0x7f00000001c0), 0x1, 0x2)
syz_open_dev$hiddev(&(0x7f0000000200), 0x1, 0x800)
syz_open_dev$hiddev(&(0x7f0000000240), 0x2, 0x0)
syz_open_dev$hiddev(&(0x7f0000000280), 0x2, 0x1)
syz_open_dev$hiddev(&(0x7f00000002c0), 0x2, 0x2)
syz_open_dev$hiddev(&(0x7f0000000300), 0x2, 0x800)
syz_open_dev$hiddev(&(0x7f0000000340), 0x3, 0x0)
syz_open_dev$hiddev(&(0x7f0000000380), 0x3, 0x1)
syz_open_dev$hiddev(&(0x7f00000003c0), 0x3, 0x2)
syz_open_dev$hiddev(&(0x7f0000000400), 0x3, 0x800)
syz_open_dev$hiddev(&(0x7f0000000440), 0x4, 0x0)
syz_open_dev$hiddev(&(0x7f0000000480), 0x4, 0x1)
syz_open_dev$hiddev(&(0x7f00000004c0), 0x4, 0x2)
syz_open_dev$hiddev(&(0x7f0000000500), 0x4, 0x800)
1.187325037s ago: executing program 2:
sync_file_range(0xffffffffffffffff, 0x0, 0x0, 0x0)
1.168645533s ago: executing program 4:
sched_setaffinity(0x0, 0x0, &(0x7f0000000000))
1.167865572s ago: executing program 3:
landlock_restrict_self(0xffffffffffffffff, 0x0)
1.145513412s ago: executing program 4:
syz_open_dev$floppy(&(0x7f0000000040), 0x0, 0x0)
syz_open_dev$floppy(&(0x7f0000000080), 0x0, 0x1)
syz_open_dev$floppy(&(0x7f00000000c0), 0x0, 0x2)
syz_open_dev$floppy(&(0x7f0000000100), 0x0, 0x800)
syz_open_dev$floppy(&(0x7f0000000140), 0x1, 0x0)
syz_open_dev$floppy(&(0x7f0000000180), 0x1, 0x1)
syz_open_dev$floppy(&(0x7f00000001c0), 0x1, 0x2)
syz_open_dev$floppy(&(0x7f0000000200), 0x1, 0x800)
syz_open_dev$floppy(&(0x7f0000000240), 0x2, 0x0)
syz_open_dev$floppy(&(0x7f0000000280), 0x2, 0x1)
syz_open_dev$floppy(&(0x7f00000002c0), 0x2, 0x2)
syz_open_dev$floppy(&(0x7f0000000300), 0x2, 0x800)
syz_open_dev$floppy(&(0x7f0000000340), 0x3, 0x0)
syz_open_dev$floppy(&(0x7f0000000380), 0x3, 0x1)
syz_open_dev$floppy(&(0x7f00000003c0), 0x3, 0x2)
syz_open_dev$floppy(&(0x7f0000000400), 0x3, 0x800)
syz_open_dev$floppy(&(0x7f0000000440), 0x4, 0x0)
syz_open_dev$floppy(&(0x7f0000000480), 0x4, 0x1)
syz_open_dev$floppy(&(0x7f00000004c0), 0x4, 0x2)
syz_open_dev$floppy(&(0x7f0000000500), 0x4, 0x800)
1.141252428s ago: executing program 0:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/selinux/checkreqprot', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/selinux/checkreqprot', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/selinux/checkreqprot', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/selinux/checkreqprot', 0x800, 0x0)
1.125905773s ago: executing program 2:
fdatasync(0xffffffffffffffff)
1.115558946s ago: executing program 3:
statx(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, &(0x7f0000000000))
1.092449963s ago: executing program 2:
linkat(0xffffffffffffffff, &(0x7f0000000000), 0xffffffffffffffff, &(0x7f0000000000), 0x0)
1.082454944s ago: executing program 0:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/fuse', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/fuse', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/fuse', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/fuse', 0x800, 0x0)
1.078382604s ago: executing program 3:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/fs/smackfs/change-rule', 0x2, 0x0)
1.059256488s ago: executing program 4:
getpid()
1.046646934s ago: executing program 2:
prlimit64(0x0, 0x0, 0x0, 0x0)
1.029566547s ago: executing program 3:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyS3', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/ttyS3', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/ttyS3', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ttyS3', 0x800, 0x0)
1.029037994s ago: executing program 5:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/snd/timer', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/timer', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/snd/timer', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/snd/timer', 0x800, 0x0)
1.028464771s ago: executing program 0:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/vfio/vfio', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/vfio/vfio', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/vfio/vfio', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/vfio/vfio', 0x800, 0x0)
1.017857437s ago: executing program 4:
set_mempolicy_home_node(0x0, 0x0, 0x0, 0x0)
998.313486ms ago: executing program 2:
renameat(0xffffffffffffffff, &(0x7f0000000000), 0xffffffffffffffff, &(0x7f0000000000))
993.766738ms ago: executing program 5:
lsm_set_self_attr(0x0, &(0x7f0000000000), 0x0, 0x0)
965.229762ms ago: executing program 2:
syz_init_net_socket$llc(0x1a, 0x1, 0x0)
123.020218ms ago: executing program 1:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/sr0', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/sr0', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/sr0', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/sr0', 0x800, 0x0)
101.001859ms ago: executing program 1:
socket$tipc(0x1e, 0x2, 0x0)
85.897837ms ago: executing program 1:
shmdt(0x0)
65.636437ms ago: executing program 1:
syz_open_dev$usbfs(&(0x7f0000000040), 0x0, 0x0)
syz_open_dev$usbfs(&(0x7f0000000080), 0x0, 0x1)
syz_open_dev$usbfs(&(0x7f00000000c0), 0x0, 0x2)
syz_open_dev$usbfs(&(0x7f0000000100), 0x0, 0x800)
syz_open_dev$usbfs(&(0x7f0000000140), 0xa, 0x0)
syz_open_dev$usbfs(&(0x7f0000000180), 0xa, 0x1)
syz_open_dev$usbfs(&(0x7f00000001c0), 0xa, 0x2)
syz_open_dev$usbfs(&(0x7f0000000200), 0xa, 0x800)
syz_open_dev$usbfs(&(0x7f0000000240), 0x14, 0x0)
syz_open_dev$usbfs(&(0x7f0000000280), 0x14, 0x1)
syz_open_dev$usbfs(&(0x7f00000002c0), 0x14, 0x2)
syz_open_dev$usbfs(&(0x7f0000000300), 0x14, 0x800)
syz_open_dev$usbfs(&(0x7f0000000340), 0x1e, 0x0)
syz_open_dev$usbfs(&(0x7f0000000380), 0x1e, 0x1)
syz_open_dev$usbfs(&(0x7f00000003c0), 0x1e, 0x2)
syz_open_dev$usbfs(&(0x7f0000000400), 0x1e, 0x800)
syz_open_dev$usbfs(&(0x7f0000000440), 0x28, 0x0)
syz_open_dev$usbfs(&(0x7f0000000480), 0x28, 0x1)
syz_open_dev$usbfs(&(0x7f00000004c0), 0x28, 0x2)
syz_open_dev$usbfs(&(0x7f0000000500), 0x28, 0x800)
38.128866ms ago: executing program 1:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/audio', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/audio', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/audio', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/audio', 0x800, 0x0)
0s ago: executing program 1:
syz_open_dev$loop(&(0x7f0000000040), 0x0, 0x0)
syz_open_dev$loop(&(0x7f0000000080), 0x0, 0x1)
syz_open_dev$loop(&(0x7f00000000c0), 0x0, 0x2)
syz_open_dev$loop(&(0x7f0000000100), 0x0, 0x800)
syz_open_dev$loop(&(0x7f0000000140), 0x1, 0x0)
syz_open_dev$loop(&(0x7f0000000180), 0x1, 0x1)
syz_open_dev$loop(&(0x7f00000001c0), 0x1, 0x2)
syz_open_dev$loop(&(0x7f0000000200), 0x1, 0x800)
syz_open_dev$loop(&(0x7f0000000240), 0x2, 0x0)
syz_open_dev$loop(&(0x7f0000000280), 0x2, 0x1)
syz_open_dev$loop(&(0x7f00000002c0), 0x2, 0x2)
syz_open_dev$loop(&(0x7f0000000300), 0x2, 0x800)
syz_open_dev$loop(&(0x7f0000000340), 0x3, 0x0)
syz_open_dev$loop(&(0x7f0000000380), 0x3, 0x1)
syz_open_dev$loop(&(0x7f00000003c0), 0x3, 0x2)
syz_open_dev$loop(&(0x7f0000000400), 0x3, 0x800)
syz_open_dev$loop(&(0x7f0000000440), 0x4, 0x0)
syz_open_dev$loop(&(0x7f0000000480), 0x4, 0x1)
syz_open_dev$loop(&(0x7f00000004c0), 0x4, 0x2)
syz_open_dev$loop(&(0x7f0000000500), 0x4, 0x800)
kernel console output (not intermixed with test programs):
Warning: Permanently added '10.128.1.104' (ED25519) to the list of known hosts.
2024/06/20 12:24:30 fuzzer started
2024/06/20 12:24:30 dialing manager at 10.128.0.169:30003
[ 69.861314][ T5094] cgroup: Unknown subsys name 'net'
[ 70.213460][ T5094] cgroup: Unknown subsys name 'rlimit'
[ 71.031692][ T1244] ieee802154 phy0 wpan0: encryption failed: -22
[ 71.038551][ T1244] ieee802154 phy1 wpan1: encryption failed: -22
2024/06/20 12:24:32 starting 6 executor processes
[ 71.493861][ T5114] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 72.736369][ T5206] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list
[ 76.230682][ T974]
[ 76.233165][ T974] =============================
[ 76.238482][ T974] WARNING: suspicious RCU usage
[ 76.243564][ T974] 6.10.0-rc4-syzkaller-00052-ge5b3efbe1ab1 #0 Not tainted
[ 76.250775][ T974] -----------------------------
[ 76.255644][ T974] net/netfilter/ipset/ip_set_core.c:1200 suspicious rcu_dereference_protected() usage!
[ 76.265373][ T974]
[ 76.265373][ T974] other info that might help us debug this:
[ 76.265373][ T974]
[ 76.275710][ T974]
2024/06/20 12:24:37 SYZFATAL: failed to recv *flatrpc.HostMessageRaw: EOF
[ 76.275710][ T974] rcu_scheduler_active = 2, debug_locks = 1
[ 76.284862][ T974] 3 locks held by kworker/u8:5/974:
[ 76.290254][ T974] #0: ffff888015ed5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830
[ 76.301290][ T974] #1: ffffc9000412fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830
[ 76.312235][ T974] #2: ffffffff8f5da110 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0
[ 76.322094][ T974]
[ 76.322094][ T974] stack backtrace:
[ 76.328933][ T974] CPU: 0 PID: 974 Comm: kworker/u8:5 Not tainted 6.10.0-rc4-syzkaller-00052-ge5b3efbe1ab1 #0
[ 76.339089][ T974] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 76.349251][ T974] Workqueue: netns cleanup_net
[ 76.354045][ T974] Call Trace:
[ 76.357334][ T974]
[ 76.360274][ T974] dump_stack_lvl+0x241/0x360
[ 76.364984][ T974] ? __pfx_dump_stack_lvl+0x10/0x10
[ 76.370222][ T974] ? __pfx__printk+0x10/0x10
[ 76.374855][ T974] ? srso_alias_return_thunk+0x5/0xfbef5
[ 76.380515][ T974] lockdep_rcu_suspicious+0x221/0x340
[ 76.385926][ T974] _destroy_all_sets+0x232/0x5f0
[ 76.390898][ T974] ip_set_net_exit+0x20/0x50
[ 76.395500][ T974] cleanup_net+0x804/0xcc0
[ 76.399931][ T974] ? __pfx_cleanup_net+0x10/0x10
[ 76.404885][ T974] ? process_scheduled_works+0x945/0x1830
[ 76.410611][ T974] process_scheduled_works+0xa2e/0x1830
[ 76.416193][ T974] ? __pfx_process_scheduled_works+0x10/0x10
[ 76.422186][ T974] ? assign_work+0x364/0x3d0
[ 76.426791][ T974] worker_thread+0x86d/0xd70
[ 76.431408][ T974] ? _raw_spin_unlock_irqrestore+0xdd/0x140
[ 76.437347][ T974] ? __kthread_parkme+0x169/0x1d0
[ 76.442421][ T974] ? __pfx_worker_thread+0x10/0x10
[ 76.447745][ T974] kthread+0x2f2/0x390
[ 76.451829][ T974] ? __pfx_worker_thread+0x10/0x10
[ 76.456947][ T974] ? __pfx_kthread+0x10/0x10
[ 76.461547][ T974] ret_from_fork+0x4d/0x80
[ 76.465976][ T974] ? __pfx_kthread+0x10/0x10
[ 76.470576][ T974] ret_from_fork_asm+0x1a/0x30
[ 76.475374][ T974]
[ 76.478476][ C0] vkms_vblank_simulate: vblank timer overrun
[ 76.557464][ T974]
[ 76.559878][ T974] =============================
[ 76.564734][ T974] WARNING: suspicious RCU usage
[ 76.569667][ T974] 6.10.0-rc4-syzkaller-00052-ge5b3efbe1ab1 #0 Not tainted
[ 76.576860][ T974] -----------------------------
[ 76.582152][ T974] net/netfilter/ipset/ip_set_core.c:1211 suspicious rcu_dereference_protected() usage!
[ 76.591906][ T974]
[ 76.591906][ T974] other info that might help us debug this:
[ 76.591906][ T974]
[ 76.602744][ T974]
[ 76.602744][ T974] rcu_scheduler_active = 2, debug_locks = 1
[ 76.610903][ T974] 3 locks held by kworker/u8:5/974:
[ 76.616119][ T974] #0: ffff888015ed5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830
[ 76.627376][ T974] #1: ffffc9000412fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830
[ 76.638043][ T974] #2: ffffffff8f5da110 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0
[ 76.647627][ T974]
[ 76.647627][ T974] stack backtrace:
[ 76.653526][ T974] CPU: 0 PID: 974 Comm: kworker/u8:5 Not tainted 6.10.0-rc4-syzkaller-00052-ge5b3efbe1ab1 #0
[ 76.663692][ T974] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 76.673759][ T974] Workqueue: netns cleanup_net
[ 76.678552][ T974] Call Trace:
[ 76.681844][ T974]
[ 76.684790][ T974] dump_stack_lvl+0x241/0x360
[ 76.689508][ T974] ? __pfx_dump_stack_lvl+0x10/0x10
[ 76.694736][ T974] ? __pfx__printk+0x10/0x10
[ 76.699884][ T974] ? srso_alias_return_thunk+0x5/0xfbef5
[ 76.705542][ T974] lockdep_rcu_suspicious+0x221/0x340
[ 76.710949][ T974] _destroy_all_sets+0x53f/0x5f0
[ 76.715907][ T974] ip_set_net_exit+0x20/0x50
[ 76.720506][ T974] cleanup_net+0x804/0xcc0
[ 76.724936][ T974] ? __pfx_cleanup_net+0x10/0x10
[ 76.729893][ T974] ? process_scheduled_works+0x945/0x1830
[ 76.735620][ T974] process_scheduled_works+0xa2e/0x1830
[ 76.741204][ T974] ? __pfx_process_scheduled_works+0x10/0x10
[ 76.747202][ T974] ? assign_work+0x364/0x3d0
[ 76.751803][ T974] worker_thread+0x86d/0xd70
[ 76.756411][ T974] ? _raw_spin_unlock_irqrestore+0xdd/0x140
[ 76.762330][ T974] ? __kthread_parkme+0x169/0x1d0
[ 76.767378][ T974] ? __pfx_worker_thread+0x10/0x10
[ 76.772502][ T974] kthread+0x2f2/0x390
[ 76.776584][ T974] ? __pfx_worker_thread+0x10/0x10
[ 76.781741][ T974] ? __pfx_kthread+0x10/0x10
[ 76.786408][ T974] ret_from_fork+0x4d/0x80
[ 76.790894][ T974] ? __pfx_kthread+0x10/0x10
[ 76.795502][ T974] ret_from_fork_asm+0x1a/0x30
[ 76.800304][ T974]
[ 76.803408][ C0] vkms_vblank_simulate: vblank timer overrun