last executing test programs:
1.359693021s ago: executing program 2:
name_to_handle_at(0xffffffffffffffff, &(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000), 0x0)
1.305549319s ago: executing program 2:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyprintk', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/ttyprintk', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/ttyprintk', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ttyprintk', 0x800, 0x0)
1.257381296s ago: executing program 2:
renameat2(0xffffffffffffffff, &(0x7f0000000000), 0xffffffffffffffff, &(0x7f0000000000), 0x0)
1.23310623s ago: executing program 2:
sync()
1.123821487s ago: executing program 3:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/input/mice', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/input/mice', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/input/mice', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/input/mice', 0x800, 0x0)
1.109538319s ago: executing program 4:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/fs/smackfs/logging', 0x2, 0x0)
1.085542663s ago: executing program 4:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ptmx', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/ptmx', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/ptmx', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ptmx', 0x800, 0x0)
1.079592144s ago: executing program 3:
truncate(&(0x7f0000000000), 0x0)
1.051562628s ago: executing program 3:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/capi20', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/capi20', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/capi20', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/capi20', 0x800, 0x0)
1.021993742s ago: executing program 3:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/tlk_device', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/tlk_device', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/tlk_device', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/tlk_device', 0x800, 0x0)
1.001697846s ago: executing program 1:
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)
986.937328ms ago: executing program 4:
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)
959.427443ms ago: executing program 1:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/fs/smackfs/syslog', 0x2, 0x0)
958.641293ms ago: executing program 3:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/dlm-control', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/dlm-control', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/dlm-control', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/dlm-control', 0x800, 0x0)
958.206903ms ago: executing program 4:
poll(&(0x7f0000000000), 0x0, 0x0)
942.930775ms ago: executing program 0:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/selinux/status', 0x0, 0x0)
932.614457ms ago: executing program 1:
chmod(&(0x7f0000000000), 0x0)
931.388897ms ago: executing program 3:
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)
922.398308ms ago: executing program 4:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/thread-self/attr/exec', 0x2, 0x0)
919.967558ms ago: executing program 0:
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)
878.900495ms ago: executing program 1:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/self/net/pfkey', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/proc/self/net/pfkey', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/proc/self/net/pfkey', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/proc/self/net/pfkey', 0x800, 0x0)
878.397955ms ago: executing program 0:
pread64(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0)
845.08731ms ago: executing program 0:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/vhost-vsock', 0x2, 0x0)
829.928413ms ago: executing program 1:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/btrfs-control', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/btrfs-control', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/btrfs-control', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/btrfs-control', 0x800, 0x0)
786.554639ms ago: executing program 1:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/sequencer', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/sequencer', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/sequencer', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/sequencer', 0x800, 0x0)
786.045049ms ago: executing program 0:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/urandom', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/urandom', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/urandom', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/urandom', 0x800, 0x0)
751.832624ms ago: executing program 0:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/nvram', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/nvram', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/nvram', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram', 0x800, 0x0)
212.658517ms ago: executing program 2:
dup2(0xffffffffffffffff, 0xffffffffffffffff)
197.97985ms ago: executing program 2:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/fs/smackfs/revoke-subject', 0x2, 0x0)
0s ago: executing program 4:
mmap(&(0x7efffffff000/0x1000)=nil, 0x1000, 0x0, 0x32, 0xffffffffffffffff, 0x0)
mmap(&(0x7f0000000000/0x1000000)=nil, 0x1000000, 0x7, 0x32, 0xffffffffffffffff, 0x0)
mmap(&(0x7f0001000000/0x1000)=nil, 0x1000, 0x0, 0x32, 0xffffffffffffffff, 0x0)
kernel console output (not intermixed with test programs):
Warning: Permanently added '10.128.1.247' (ED25519) to the list of known hosts.
2024/06/17 07:05:06 fuzzer started
2024/06/17 07:05:06 dialing manager at 10.128.0.163:30033
[ 56.428625][ T5081] cgroup: Unknown subsys name 'net'
[ 56.655394][ T5081] cgroup: Unknown subsys name 'rlimit'
[ 57.830021][ T5096] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
2024/06/17 07:05:13 starting 5 executor processes
[ 66.527482][ T12]
[ 66.529967][ T12] =============================
[ 66.534900][ T12] WARNING: suspicious RCU usage
[ 66.539866][ T12] 6.10.0-rc4-syzkaller #0 Not tainted
[ 66.545379][ T12] -----------------------------
[ 66.550249][ T12] net/netfilter/ipset/ip_set_core.c:1200 suspicious rcu_dereference_protected() usage!
[ 66.560178][ T12]
[ 66.560178][ T12] other info that might help us debug this:
[ 66.560178][ T12]
[ 66.570715][ T12]
[ 66.570715][ T12] rcu_scheduler_active = 2, debug_locks = 1
[ 66.578908][ T12] 3 locks held by kworker/u8:1/12:
[ 66.584939][ T12] #0: ffff888015ed3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830
[ 66.596832][ T12] #1: ffffc90000117d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830
[ 66.607465][ T12] #2: ffffffff8f5c95d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0
[ 66.617147][ T12]
[ 66.617147][ T12] stack backtrace:
[ 66.623311][ T12] CPU: 0 PID: 12 Comm: kworker/u8:1 Not tainted 6.10.0-rc4-syzkaller #0
[ 66.632278][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 66.642437][ T12] Workqueue: netns cleanup_net
[ 66.647311][ T12] Call Trace:
[ 66.650584][ T12]
[ 66.653507][ T12] dump_stack_lvl+0x241/0x360
[ 66.658185][ T12] ? __pfx_dump_stack_lvl+0x10/0x10
[ 66.663492][ T12] ? __pfx__printk+0x10/0x10
[ 66.668114][ T12] lockdep_rcu_suspicious+0x221/0x340
[ 66.673510][ T12] _destroy_all_sets+0x232/0x5f0
[ 66.678463][ T12] ip_set_net_exit+0x20/0x50
[ 66.683060][ T12] cleanup_net+0x802/0xcc0
[ 66.687496][ T12] ? __pfx_cleanup_net+0x10/0x10
[ 66.692534][ T12] ? process_scheduled_works+0x945/0x1830
[ 66.698343][ T12] process_scheduled_works+0xa2c/0x1830
[ 66.704002][ T12] ? __pfx_process_scheduled_works+0x10/0x10
[ 66.710163][ T12] ? assign_work+0x364/0x3d0
[ 66.714756][ T12] worker_thread+0x86d/0xd70
[ 66.719444][ T12] ? __kthread_parkme+0x169/0x1d0
2024/06/17 07:05:16 SYZFATAL: failed to recv *flatrpc.HostMessageRaw: EOF
[ 66.724557][ T12] ? __pfx_worker_thread+0x10/0x10
[ 66.729667][ T12] kthread+0x2f0/0x390
[ 66.733824][ T12] ? __pfx_worker_thread+0x10/0x10
[ 66.739083][ T12] ? __pfx_kthread+0x10/0x10
[ 66.743777][ T12] ret_from_fork+0x4b/0x80
[ 66.748294][ T12] ? __pfx_kthread+0x10/0x10
[ 66.753054][ T12] ret_from_fork_asm+0x1a/0x30
[ 66.757847][ T12]
[ 66.785656][ T12]
[ 66.788035][ T12] =============================
[ 66.793418][ T12] WARNING: suspicious RCU usage
[ 66.798285][ T12] 6.10.0-rc4-syzkaller #0 Not tainted
[ 66.803826][ T12] -----------------------------
[ 66.808703][ T12] net/netfilter/ipset/ip_set_core.c:1211 suspicious rcu_dereference_protected() usage!
[ 66.818755][ T12]
[ 66.818755][ T12] other info that might help us debug this:
[ 66.818755][ T12]
[ 66.829602][ T12]
[ 66.829602][ T12] rcu_scheduler_active = 2, debug_locks = 1
[ 66.837865][ T12] 3 locks held by kworker/u8:1/12:
[ 66.843052][ T12] #0: ffff888015ed3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830
[ 66.854037][ T12] #1: ffffc90000117d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830
[ 66.864822][ T12] #2: ffffffff8f5c95d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0
[ 66.874603][ T12]
[ 66.874603][ T12] stack backtrace:
[ 66.880605][ T12] CPU: 1 PID: 12 Comm: kworker/u8:1 Not tainted 6.10.0-rc4-syzkaller #0
[ 66.889138][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 66.899268][ T12] Workqueue: netns cleanup_net
[ 66.904174][ T12] Call Trace:
[ 66.907651][ T12]
[ 66.910602][ T12] dump_stack_lvl+0x241/0x360
[ 66.915397][ T12] ? __pfx_dump_stack_lvl+0x10/0x10
[ 66.920720][ T12] ? __pfx__printk+0x10/0x10
[ 66.925521][ T12] lockdep_rcu_suspicious+0x221/0x340
[ 66.930936][ T12] _destroy_all_sets+0x53f/0x5f0
[ 66.935906][ T12] ip_set_net_exit+0x20/0x50
[ 66.940523][ T12] cleanup_net+0x802/0xcc0
[ 66.944987][ T12] ? __pfx_cleanup_net+0x10/0x10
[ 66.949990][ T12] ? process_scheduled_works+0x945/0x1830
[ 66.955755][ T12] process_scheduled_works+0xa2c/0x1830
[ 66.961362][ T12] ? __pfx_process_scheduled_works+0x10/0x10
[ 66.967381][ T12] ? assign_work+0x364/0x3d0
[ 66.972085][ T12] worker_thread+0x86d/0xd70
[ 66.976810][ T12] ? __kthread_parkme+0x169/0x1d0
[ 66.982046][ T12] ? __pfx_worker_thread+0x10/0x10
[ 66.987275][ T12] kthread+0x2f0/0x390
[ 66.991462][ T12] ? __pfx_worker_thread+0x10/0x10
[ 66.996692][ T12] ? __pfx_kthread+0x10/0x10
[ 67.001331][ T12] ret_from_fork+0x4b/0x80
[ 67.005781][ T12] ? __pfx_kthread+0x10/0x10
[ 67.010403][ T12] ret_from_fork_asm+0x1a/0x30
[ 67.015222][ T12]