last executing test programs: 1.870662977s ago: executing program 1 (id=10): openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/thread-self/attr/exec', 0x2, 0x0) 1.809314657s ago: executing program 1 (id=16): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/fs/smackfs/change-rule', 0x2, 0x0) 1.809174907s ago: executing program 0 (id=17): unlink(&(0x7f0000000000)) 1.808691117s ago: executing program 1 (id=20): semget(0xffffffffffffffff, 0x0, 0x0) 1.776763422s ago: executing program 0 (id=22): ftruncate(0xffffffffffffffff, 0x0) 1.776441292s ago: executing program 3 (id=23): pipe(&(0x7f0000000000)) 1.776293472s ago: executing program 1 (id=24): ppoll(&(0x7f0000000000), 0x0, &(0x7f0000000000), &(0x7f0000000000), 0x0) 1.776223972s ago: executing program 3 (id=25): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/md0', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/md0', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/md0', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/md0', 0x800, 0x0) 1.72412632s ago: executing program 0 (id=27): rt_sigaction(0x0, &(0x7f0000000000), 0x0, 0x0, &(0x7f0000000000)) 1.72395792s ago: executing program 4 (id=28): shutdown(0xffffffffffffffff, 0x0) 1.72376669s ago: executing program 3 (id=30): setreuid(0x0, 0x0) 1.72370175s ago: executing program 0 (id=32): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/debug/damon/init_regions', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/sys/kernel/debug/damon/init_regions', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/kernel/debug/damon/init_regions', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/sys/kernel/debug/damon/init_regions', 0x800, 0x0) 1.72342517s ago: executing program 4 (id=33): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/debug/damon/target_ids', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/sys/kernel/debug/damon/target_ids', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/kernel/debug/damon/target_ids', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/sys/kernel/debug/damon/target_ids', 0x800, 0x0) 1.702346774s ago: executing program 3 (id=34): clock_adjtime(0x0, &(0x7f0000000000)) 1.623343986s ago: executing program 3 (id=37): fadvise64(0xffffffffffffffff, 0x0, 0x0, 0x0) 1.623264606s ago: executing program 4 (id=38): lsm_get_self_attr(0x0, &(0x7f0000000000), &(0x7f0000000000), 0x0) 1.556124307s ago: executing program 3 (id=39): writev(0xffffffffffffffff, &(0x7f0000000000), 0x0) 1.555879247s ago: executing program 4 (id=40): socket$can_raw(0x1d, 0x3, 0x1) 991.864515ms ago: executing program 0 (id=36): mmap(&(0x7efffffff000/0x1000)=nil, 0x1000, 0x0, 0x32, 0xffffffffffffffff, 0x0) mmap(&(0x7f0000000000/0x1000000)=nil, 0x1000000, 0x7, 0x32, 0xffffffffffffffff, 0x0) mmap(&(0x7f0001000000/0x1000)=nil, 0x1000, 0x0, 0x32, 0xffffffffffffffff, 0x0) 972.151618ms ago: executing program 4 (id=42): mmap(&(0x7efffffff000/0x1000)=nil, 0x1000, 0x0, 0x32, 0xffffffffffffffff, 0x0) mmap(&(0x7f0000000000/0x1000000)=nil, 0x1000000, 0x7, 0x32, 0xffffffffffffffff, 0x0) mmap(&(0x7f0001000000/0x1000)=nil, 0x1000, 0x0, 0x32, 0xffffffffffffffff, 0x0) 966.897069ms ago: executing program 1 (id=31): mmap(&(0x7efffffff000/0x1000)=nil, 0x1000, 0x0, 0x32, 0xffffffffffffffff, 0x0) mmap(&(0x7f0000000000/0x1000000)=nil, 0x1000000, 0x7, 0x32, 0xffffffffffffffff, 0x0) mmap(&(0x7f0001000000/0x1000)=nil, 0x1000, 0x0, 0x32, 0xffffffffffffffff, 0x0) 392.588999ms ago: executing program 2 (id=50): syz_open_dev$sndmidi(&(0x7f0000000040), 0x1, 0x0) syz_open_dev$sndmidi(&(0x7f0000000080), 0x1, 0x1) syz_open_dev$sndmidi(&(0x7f00000000c0), 0x1, 0x2) syz_open_dev$sndmidi(&(0x7f0000000100), 0x1, 0x800) syz_open_dev$sndmidi(&(0x7f0000000140), 0xb, 0x0) syz_open_dev$sndmidi(&(0x7f0000000180), 0xb, 0x1) syz_open_dev$sndmidi(&(0x7f00000001c0), 0xb, 0x2) syz_open_dev$sndmidi(&(0x7f0000000200), 0xb, 0x800) syz_open_dev$sndmidi(&(0x7f0000000240), 0x15, 0x0) syz_open_dev$sndmidi(&(0x7f0000000280), 0x15, 0x1) syz_open_dev$sndmidi(&(0x7f00000002c0), 0x15, 0x2) syz_open_dev$sndmidi(&(0x7f0000000300), 0x15, 0x800) syz_open_dev$sndmidi(&(0x7f0000000340), 0x1f, 0x0) syz_open_dev$sndmidi(&(0x7f0000000380), 0x1f, 0x1) syz_open_dev$sndmidi(&(0x7f00000003c0), 0x1f, 0x2) syz_open_dev$sndmidi(&(0x7f0000000400), 0x1f, 0x800) syz_open_dev$sndmidi(&(0x7f0000000440), 0x29, 0x0) syz_open_dev$sndmidi(&(0x7f0000000480), 0x29, 0x1) syz_open_dev$sndmidi(&(0x7f00000004c0), 0x29, 0x2) syz_open_dev$sndmidi(&(0x7f0000000500), 0x29, 0x800) 360.515313ms ago: executing program 2 (id=51): syz_open_dev$sndpcmc(&(0x7f0000000040), 0x1, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000080), 0x1, 0x1) syz_open_dev$sndpcmc(&(0x7f00000000c0), 0x1, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000100), 0x1, 0x800) syz_open_dev$sndpcmc(&(0x7f0000000140), 0xb, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000180), 0xb, 0x1) syz_open_dev$sndpcmc(&(0x7f00000001c0), 0xb, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000200), 0xb, 0x800) syz_open_dev$sndpcmc(&(0x7f0000000240), 0x15, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000280), 0x15, 0x1) syz_open_dev$sndpcmc(&(0x7f00000002c0), 0x15, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000300), 0x15, 0x800) syz_open_dev$sndpcmc(&(0x7f0000000340), 0x1f, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000380), 0x1f, 0x1) syz_open_dev$sndpcmc(&(0x7f00000003c0), 0x1f, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000400), 0x1f, 0x800) syz_open_dev$sndpcmc(&(0x7f0000000440), 0x29, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000480), 0x29, 0x1) syz_open_dev$sndpcmc(&(0x7f00000004c0), 0x29, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000500), 0x29, 0x800) 347.477036ms ago: executing program 2 (id=52): syz_open_dev$sndpcmp(&(0x7f0000000040), 0x2, 0x0) syz_open_dev$sndpcmp(&(0x7f0000000080), 0x2, 0x1) syz_open_dev$sndpcmp(&(0x7f00000000c0), 0x2, 0x2) syz_open_dev$sndpcmp(&(0x7f0000000100), 0x2, 0x800) syz_open_dev$sndpcmp(&(0x7f0000000140), 0xc, 0x0) syz_open_dev$sndpcmp(&(0x7f0000000180), 0xc, 0x1) syz_open_dev$sndpcmp(&(0x7f00000001c0), 0xc, 0x2) syz_open_dev$sndpcmp(&(0x7f0000000200), 0xc, 0x800) syz_open_dev$sndpcmp(&(0x7f0000000240), 0x16, 0x0) syz_open_dev$sndpcmp(&(0x7f0000000280), 0x16, 0x1) syz_open_dev$sndpcmp(&(0x7f00000002c0), 0x16, 0x2) syz_open_dev$sndpcmp(&(0x7f0000000300), 0x16, 0x800) syz_open_dev$sndpcmp(&(0x7f0000000340), 0x20, 0x0) syz_open_dev$sndpcmp(&(0x7f0000000380), 0x20, 0x1) syz_open_dev$sndpcmp(&(0x7f00000003c0), 0x20, 0x2) syz_open_dev$sndpcmp(&(0x7f0000000400), 0x20, 0x800) syz_open_dev$sndpcmp(&(0x7f0000000440), 0x2a, 0x0) syz_open_dev$sndpcmp(&(0x7f0000000480), 0x2a, 0x1) syz_open_dev$sndpcmp(&(0x7f00000004c0), 0x2a, 0x2) syz_open_dev$sndpcmp(&(0x7f0000000500), 0x2a, 0x800) 260.14749ms ago: executing program 2 (id=53): syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x0) syz_open_dev$sndmidi(&(0x7f0000000080), 0x2, 0x1) syz_open_dev$sndmidi(&(0x7f00000000c0), 0x2, 0x2) syz_open_dev$sndmidi(&(0x7f0000000100), 0x2, 0x800) syz_open_dev$sndmidi(&(0x7f0000000140), 0xc, 0x0) syz_open_dev$sndmidi(&(0x7f0000000180), 0xc, 0x1) syz_open_dev$sndmidi(&(0x7f00000001c0), 0xc, 0x2) syz_open_dev$sndmidi(&(0x7f0000000200), 0xc, 0x800) syz_open_dev$sndmidi(&(0x7f0000000240), 0x16, 0x0) syz_open_dev$sndmidi(&(0x7f0000000280), 0x16, 0x1) syz_open_dev$sndmidi(&(0x7f00000002c0), 0x16, 0x2) syz_open_dev$sndmidi(&(0x7f0000000300), 0x16, 0x800) syz_open_dev$sndmidi(&(0x7f0000000340), 0x20, 0x0) syz_open_dev$sndmidi(&(0x7f0000000380), 0x20, 0x1) syz_open_dev$sndmidi(&(0x7f00000003c0), 0x20, 0x2) syz_open_dev$sndmidi(&(0x7f0000000400), 0x20, 0x800) syz_open_dev$sndmidi(&(0x7f0000000440), 0x2a, 0x0) syz_open_dev$sndmidi(&(0x7f0000000480), 0x2a, 0x1) syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2a, 0x2) syz_open_dev$sndmidi(&(0x7f0000000500), 0x2a, 0x800) 260.034999ms ago: executing program 2 (id=54): syz_open_dev$sndpcmc(&(0x7f0000000040), 0x2, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000080), 0x2, 0x1) syz_open_dev$sndpcmc(&(0x7f00000000c0), 0x2, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000100), 0x2, 0x800) syz_open_dev$sndpcmc(&(0x7f0000000140), 0xc, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000180), 0xc, 0x1) syz_open_dev$sndpcmc(&(0x7f00000001c0), 0xc, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000200), 0xc, 0x800) syz_open_dev$sndpcmc(&(0x7f0000000240), 0x16, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000280), 0x16, 0x1) syz_open_dev$sndpcmc(&(0x7f00000002c0), 0x16, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000300), 0x16, 0x800) syz_open_dev$sndpcmc(&(0x7f0000000340), 0x20, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000380), 0x20, 0x1) syz_open_dev$sndpcmc(&(0x7f00000003c0), 0x20, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000400), 0x20, 0x800) syz_open_dev$sndpcmc(&(0x7f0000000440), 0x2a, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000480), 0x2a, 0x1) syz_open_dev$sndpcmc(&(0x7f00000004c0), 0x2a, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000500), 0x2a, 0x800) 101.426535ms ago: executing program 4 (id=44): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/zero', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/zero', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/zero', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/zero', 0x800, 0x0) 100.683215ms ago: executing program 2 (id=55): syz_open_dev$sndpcmp(&(0x7f0000000040), 0x4, 0x0) syz_open_dev$sndpcmp(&(0x7f0000000080), 0x4, 0x1) syz_open_dev$sndpcmp(&(0x7f00000000c0), 0x4, 0x2) syz_open_dev$sndpcmp(&(0x7f0000000100), 0x4, 0x800) syz_open_dev$sndpcmp(&(0x7f0000000140), 0xe, 0x0) syz_open_dev$sndpcmp(&(0x7f0000000180), 0xe, 0x1) syz_open_dev$sndpcmp(&(0x7f00000001c0), 0xe, 0x2) syz_open_dev$sndpcmp(&(0x7f0000000200), 0xe, 0x800) syz_open_dev$sndpcmp(&(0x7f0000000240), 0x18, 0x0) syz_open_dev$sndpcmp(&(0x7f0000000280), 0x18, 0x1) syz_open_dev$sndpcmp(&(0x7f00000002c0), 0x18, 0x2) syz_open_dev$sndpcmp(&(0x7f0000000300), 0x18, 0x800) syz_open_dev$sndpcmp(&(0x7f0000000340), 0x22, 0x0) syz_open_dev$sndpcmp(&(0x7f0000000380), 0x22, 0x1) syz_open_dev$sndpcmp(&(0x7f00000003c0), 0x22, 0x2) syz_open_dev$sndpcmp(&(0x7f0000000400), 0x22, 0x800) syz_open_dev$sndpcmp(&(0x7f0000000440), 0x2c, 0x0) syz_open_dev$sndpcmp(&(0x7f0000000480), 0x2c, 0x1) syz_open_dev$sndpcmp(&(0x7f00000004c0), 0x2c, 0x2) syz_open_dev$sndpcmp(&(0x7f0000000500), 0x2c, 0x800) 75.305239ms ago: executing program 1 (id=46): openat(0xffffffffffffff9c, &(0x7f0000000040)='/selinux/access', 0x2, 0x0) 0s ago: executing program 0 (id=45): getdents64(0xffffffffffffffff, &(0x7f0000000000), 0x0) kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.0.178' (ED25519) to the list of known hosts. syzkaller login: [ 46.217841][ T3535] cgroup: Unknown subsys name 'net' [ 46.377300][ T3535] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 47.655494][ T3535] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 48.858500][ T3594] chnl_net:caif_netlink_parms(): no params data found [ 49.445363][ T3594] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.466302][ T3594] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.501180][ T3594] device bridge_slave_0 entered promiscuous mode [ 49.544786][ T3594] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.573479][ T3594] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.593910][ T3594] device bridge_slave_1 entered promiscuous mode [ 49.717423][ T3594] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 49.733202][ T3594] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 49.849755][ T3594] team0: Port device team_slave_0 added [ 49.883803][ T3594] team0: Port device team_slave_1 added [ 49.942825][ T3594] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 49.950029][ T3594] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 50.013332][ T3594] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 50.027097][ T3594] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 50.034440][ T3594] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 50.060763][ T3594] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 50.100751][ T3594] device hsr_slave_0 entered promiscuous mode [ 50.107836][ T3594] device hsr_slave_1 entered promiscuous mode [ 50.256318][ T3594] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 50.267896][ T3594] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 50.278868][ T3594] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 50.290488][ T3594] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 50.377717][ T3594] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.393014][ T935] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.403565][ T935] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.415406][ T3594] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.434672][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.444739][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.453867][ T14] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.461142][ T14] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.486258][ T3585] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 50.494838][ T3585] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.504087][ T3585] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.512658][ T3585] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.519798][ T3585] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.527914][ T3585] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 50.537888][ T3585] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 50.547587][ T3585] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 50.556921][ T3585] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.572769][ T3585] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.573662][ T11] [ 50.580822][ T3585] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 50.583348][ T11] ============================= [ 50.592346][ T3585] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.595477][ T11] WARNING: suspicious RCU usage [ 50.605692][ T3585] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 50.608152][ T11] 6.1.95-syzkaller #0 Not tainted [ 50.621010][ T3594] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 50.621108][ T11] ----------------------------- [ 50.621116][ T11] net/netfilter/ipset/ip_set_core.c:1202 suspicious rcu_dereference_protected() usage! [ 50.637916][ T3594] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 50.646205][ T11] [ 50.646205][ T11] other info that might help us debug this: [ 50.646205][ T11] [ 50.646214][ T11] [ 50.646214][ T11] rcu_scheduler_active = 2, debug_locks = 1 [ 50.646227][ T11] 3 locks held by kworker/u4:1/11: [ 50.646239][ T11] #0: ffff888012616938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 [ 50.657841][ T3289] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 50.663850][ T11] #1: ffffc90000107d20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 [ 50.707330][ T11] #2: ffffffff8e28d9d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf1/0xb60 [ 50.717537][ T11] [ 50.717537][ T11] stack backtrace: [ 50.723625][ T11] CPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted 6.1.95-syzkaller #0 [ 50.731633][ T11] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 50.741860][ T11] Workqueue: netns cleanup_net [ 50.746674][ T11] Call Trace: [ 50.749971][ T11] [ 50.752918][ T11] dump_stack_lvl+0x1e3/0x2cb [ 50.757654][ T11] ? nf_tcp_handle_invalid+0x642/0x642 [ 50.763144][ T11] ? panic+0x764/0x764 [ 50.767251][ T11] lockdep_rcu_suspicious+0x21c/0x330 [ 50.772664][ T11] _destroy_all_sets+0x22c/0x5e0 [ 50.777646][ T11] ip_set_net_exit+0x1c/0x50 [ 50.782287][ T11] cleanup_net+0x6ce/0xb60 [ 50.786739][ T11] ? ops_free_list+0x3b0/0x3b0 [ 50.791547][ T11] ? process_one_work+0x7a9/0x11d0 [ 50.796773][ T11] process_one_work+0x8a9/0x11d0 [ 50.801930][ T11] ? worker_detach_from_pool+0x260/0x260 [ 50.807611][ T11] ? _raw_spin_lock_irqsave+0x120/0x120 [ 50.813264][ T11] ? kthread_data+0x4e/0xc0 [ 50.817849][ T11] ? wq_worker_running+0x97/0x190 [ 50.823088][ T11] worker_thread+0xa47/0x1200 [ 50.827991][ T11] kthread+0x28d/0x320 SYZFAIL: failed to recv rpc fd=3 want=4 sent=0 n=0 (errno 9: Bad file descriptor) [ 50.829657][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready