last executing test programs: 552.073474ms ago: executing program 0 (id=167): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/udmabuf', 0x2, 0x0) 412.304938ms ago: executing program 1 (id=169): utimensat(0xffffffffffffffff, &(0x7f0000000000), &(0x7f0000000000), 0x0) 411.839708ms ago: executing program 0 (id=170): openat(0xffffffffffffff9c, &(0x7f0000000040)='/selinux/policy', 0x0, 0x0) 309.448311ms ago: executing program 0 (id=171): socket$nl_route(0x10, 0x3, 0x0) 309.210941ms ago: executing program 1 (id=172): setregid(0x0, 0x0) 171.149255ms ago: executing program 0 (id=173): umount2(&(0x7f0000000000), 0x0) 170.439155ms ago: executing program 1 (id=174): setuid(0x0) 92.623507ms ago: executing program 0 (id=175): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/sgx_provision', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/sgx_provision', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/sgx_provision', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/sgx_provision', 0x800, 0x0) 92.384077ms ago: executing program 1 (id=176): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/debug/sync/info', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/sys/kernel/debug/sync/info', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/kernel/debug/sync/info', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/sys/kernel/debug/sync/info', 0x800, 0x0) 3.00967ms ago: executing program 0 (id=177): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/vim2m', 0x2, 0x0) 2.7285ms ago: executing program 1 (id=178): socket$inet6_udplite(0xa, 0x2, 0x88) 0s ago: executing program 1 (id=179): getdents64(0xffffffffffffffff, &(0x7f0000000000), 0x0) kernel console output (not intermixed with test programs): Warning: Permanently added '[localhost]:8567' (ED25519) to the list of known hosts. syzkaller login: [ 87.056403][ T3269] cgroup: Unknown subsys name 'net' [ 87.401933][ T3269] cgroup: Unknown subsys name 'cpuset' [ 87.438599][ T3269] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 88.172519][ T3269] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 102.261281][ T3465] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 103.080057][ T3469] ================================================================== [ 103.085729][ T3469] BUG: KASAN: slab-use-after-free in binder_add_device+0x14/0x2c [ 103.086936][ T3469] Write at addr f6f000000402b248 by task syz-executor/3469 [ 103.087723][ T3469] Pointer tag: [f6], memory tag: [f8] [ 103.088105][ T3469] [ 103.089248][ T3469] CPU: 0 UID: 0 PID: 3469 Comm: syz-executor Not tainted 6.13.0-syzkaller-09030-g6d61a53dd6f5 #0 [ 103.090140][ T3469] Hardware name: linux,dummy-virt (DT) [ 103.090363][ T3469] Call trace: [ 103.090785][ T3469] show_stack+0x18/0x24 (C) [ 103.091056][ T3469] dump_stack_lvl+0x78/0x90 [ 103.091200][ T3469] print_report+0x108/0x618 [ 103.091311][ T3469] kasan_report+0x88/0xac [ 103.091426][ T3469] __do_kernel_fault+0x170/0x1c8 [ 103.091535][ T3469] do_tag_check_fault+0x78/0x8c [ 103.091663][ T3469] do_mem_abort+0x44/0x94 [ 103.091769][ T3469] el1_abort+0x40/0x60 [ 103.091877][ T3469] el1h_64_sync_handler+0xa4/0x120 [ 103.091986][ T3469] el1h_64_sync+0x6c/0x70 [ 103.092152][ T3469] binder_add_device+0x14/0x2c (P) [ 103.092264][ T3469] binderfs_fill_super+0x220/0x4f8 [ 103.092376][ T3469] get_tree_nodev+0x70/0xb8 [ 103.092484][ T3469] binderfs_fs_context_get_tree+0x18/0x24 [ 103.092591][ T3469] vfs_get_tree+0x28/0xec [ 103.092695][ T3469] path_mount+0x3f8/0xa78 [ 103.092805][ T3469] __arm64_sys_mount+0x1d4/0x2b4 [ 103.092913][ T3469] invoke_syscall+0x48/0x110 [ 103.093020][ T3469] el0_svc_common.constprop.0+0x40/0xe0 [ 103.093128][ T3469] do_el0_svc+0x1c/0x28 [ 103.093235][ T3469] el0_svc+0x30/0xe0 [ 103.093376][ T3469] el0t_64_sync_handler+0x10c/0x138 [ 103.093484][ T3469] el0t_64_sync+0x1a4/0x1a8 [ 103.093715][ T3469] [ 103.100786][ T3469] Freed by task 3276: [ 103.101260][ T3469] kasan_save_stack+0x3c/0x64 [ 103.101746][ T3469] save_stack_info+0x40/0x158 [ 103.102100][ T3469] kasan_save_free_info+0x18/0x24 [ 103.102474][ T3469] __kasan_slab_free+0x74/0x8c [ 103.102976][ T3469] kfree+0xfc/0x30c [ 103.103434][ T3469] binderfs_evict_inode+0xe4/0xf8 [ 103.103939][ T3469] evict+0xec/0x254 [ 103.104416][ T3469] iput+0xfc/0x1b8 [ 103.105036][ T3469] dentry_unlink_inode+0xc0/0x188 [ 103.105583][ T3469] __dentry_kill+0x7c/0x1d4 [ 103.106047][ T3469] shrink_dentry_list+0x74/0xe4 [ 103.106557][ T3469] shrink_dcache_parent+0xcc/0x14c [ 103.107044][ T3469] shrink_dcache_for_umount+0x3c/0x1c8 [ 103.107591][ T3469] generic_shutdown_super+0x24/0x100 [ 103.108084][ T3469] kill_anon_super+0x20/0x90 [ 103.108598][ T3469] kill_litter_super+0x28/0x38 [ 103.109060][ T3469] binderfs_kill_super+0x18/0x40 [ 103.109593][ T3469] deactivate_locked_super+0x50/0x12c [ 103.110091][ T3469] deactivate_super+0x84/0x9c [ 103.110611][ T3469] cleanup_mnt+0xa0/0x130 [ 103.111091][ T3469] __cleanup_mnt+0x14/0x20 [ 103.111579][ T3469] task_work_run+0x78/0xd4 [ 103.112070][ T3469] do_exit+0x2c8/0x98c [ 103.112548][ T3469] do_group_exit+0x34/0x90 [ 103.112993][ T3469] copy_siginfo_to_user+0x0/0xec [ 103.113533][ T3469] do_signal+0xf0/0x360 [ 103.113968][ T3469] do_notify_resume+0xd8/0x164 [ 103.114780][ T3469] el0_svc+0xc0/0xe0 [ 103.115338][ T3469] el0t_64_sync_handler+0x10c/0x138 [ 103.115849][ T3469] el0t_64_sync+0x1a4/0x1a8 [ 103.116389][ T3469] [ 103.116740][ T3469] The buggy address belongs to the object at fff000000402b240 [ 103.116740][ T3469] which belongs to the cache kmalloc-192 of size 192 [ 103.117841][ T3469] The buggy address is located 8 bytes inside of [ 103.117841][ T3469] 160-byte region [fff000000402b240, fff000000402b2e0) [ 103.118625][ T3469] [ 103.119070][ T3469] The buggy address belongs to the physical page: [ 103.119573][ T3469] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x4402b [ 103.120352][ T3469] flags: 0x1ffc00000000000(node=0|zone=0|lastcpupid=0x7ff|kasantag=0x0) [ 103.121112][ T3469] page_type: f5(slab) [ 103.121790][ T3469] raw: 01ffc00000000000 faf0000003001300 dead000000000122 0000000000000000 [ 103.122294][ T3469] raw: 0000000000000000 0000000000150015 00000000f5000000 0000000000000000 [ 103.122827][ T3469] page dumped because: kasan: bad access detected [ 103.123223][ T3469] [ 103.123502][ T3469] Memory state around the buggy address: [ 103.124008][ T3469] fff000000402b000: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 fc fc fc fc [ 103.124582][ T3469] fff000000402b100: fc fc fc fc fc fc fc fc fd fd fd fd fd fd fd fd [ 103.125140][ T3469] >fff000000402b200: fd fd fd fd f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 fe fe [ 103.125656][ T3469] ^ [ 103.126076][ T3469] fff000000402b300: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f2 f2 f2 f2 [ 103.126577][ T3469] fff000000402b400: f2 f2 f2 f2 f2 f2 f2 f2 f8 f8 f8 f8 f8 f8 f8 f8 [ 103.127074][ T3469] ================================================================== [ 103.129606][ T3469] Disabling lock debugging due to kernel taint SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 103.727150][ T42] list_add corruption. prev is NULL. [ 103.728588][ T42] ------------[ cut here ]------------ [ 103.729233][ T42] kernel BUG at lib/list_debug.c:25! [ 103.730184][ T42] Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP [ 103.731321][ T42] Modules linked in: [ 103.733085][ T42] CPU: 0 UID: 0 PID: 42 Comm: kworker/u8:2 Tainted: G B 6.13.0-syzkaller-09030-g6d61a53dd6f5 #0 [ 103.734558][ T42] Tainted: [B]=BAD_PAGE [ 103.735297][ T42] Hardware name: linux,dummy-virt (DT) [ 103.736184][ T42] Workqueue: netns cleanup_net [ 103.737229][ T42] pstate: 614020c9 (nZCv daIF +PAN -UAO -TCO +DIT -SSBS BTYPE=--) [ 103.738257][ T42] pc : __list_add_valid_or_report+0x60/0xd8 [ 103.739090][ T42] lr : __list_add_valid_or_report+0x60/0xd8 [ 103.739916][ T42] sp : ffff800082f73950 [ 103.740555][ T42] x29: ffff800082f73950 x28: dead000000000100 x27: f7f00000074d7a00 [ 103.742145][ T42] x26: f7f00000074d7a70 x25: ffff800082f73af8 x24: f7f000000779cff8 [ 103.743448][ T42] x23: f2f0000006459cd0 x22: 0000000000000000 x21: 0000000000000000 [ 103.745314][ T42] x20: f9f000000655bfa0 x19: f2f0000006459ca8 x18: 00000000ffffffff [ 103.746576][ T42] x17: 0000000000000000 x16: 0000000000000001 x15: ffff800082f73390 [ 103.747787][ T42] x14: ffff800082f73528 x13: ffff8000827de840 x12: 00000000000009c6 [ 103.748932][ T42] x11: 0000000000000342 x10: ffff80008288e840 x9 : ffff8000827de840 [ 103.750295][ T42] x8 : 00000000ffffdfff x7 : ffff80008288e840 x6 : 80000000ffffe000 [ 103.751571][ T42] x5 : fff000007f8cc408 x4 : 0000000000000000 x3 : 0000000000000000 [ 103.752805][ T42] x2 : 0000000000000000 x1 : fdf0000004201240 x0 : 0000000000000022 [ 103.754255][ T42] Call trace: [ 103.755004][ T42] __list_add_valid_or_report+0x60/0xd8 (P) [ 103.755839][ T42] ref_tracker_free+0xcc/0x284 [ 103.756551][ T42] neigh_parms_release+0x84/0xec [ 103.757355][ T42] addrconf_ifdown.isra.0+0x608/0x758 [ 103.758152][ T42] addrconf_notify+0xe8/0x7b4 [ 103.758830][ T42] raw_notifier_call_chain+0x54/0x74 [ 103.759595][ T42] call_netdevice_notifiers_info+0x58/0xa4 [ 103.760386][ T42] unregister_netdevice_many_notify+0x3f0/0xa08 [ 103.761243][ T42] unregister_netdevice_many+0x18/0x24 [ 103.762061][ T42] cleanup_net+0x278/0x508 [ 103.762802][ T42] process_one_work+0x15c/0x29c [ 103.763526][ T42] worker_thread+0x24c/0x354 [ 103.764209][ T42] kthread+0x130/0x1fc [ 103.765313][ T42] ret_from_fork+0x10/0x20 [ 103.766076][ T42] Code: d65f03c0 b000e6a0 91266000 97eafba9 (d4210000) [ 103.766813][ T42] ---[ end trace 0000000000000000 ]--- [ 103.767485][ T42] Kernel panic - not syncing: Oops - BUG: Fatal exception [ 103.768111][ T42] SMP: stopping secondary CPUs [ 103.769137][ T42] Kernel Offset: disabled [ 103.769506][ T42] CPU features: 0x000,000000d0,60bef2f8,2b7ffebf [ 103.770090][ T42] Memory Limit: none [ 103.770620][ T42] Rebooting in 86400 seconds.. VM DIAGNOSIS: 09:48:40 Registers: info registers vcpu 0 CPU#0 PC=ffff800081a903cc X00=0000000000000002 X01=0000000000000002 X02=ffff800088d03420 X03=ffff800082518988 X04=ffff800082518986 X05=ffff800081f86bf8 X06=ffff800088d03548 X07=00000000ffffffff X08=ffff800088d036e0 X09=0000000000000d8d X10=ffff80008288e840 X11=00000000000002f2 X12=00000000000008d6 X13=ffff800088d03555 X14=ffff800088d03548 X15=ffff800088d03380 X16=0000000000000000 X17=0000000000000000 X18=00000000ffffffff X19=0000000000000003 X20=0000000000000403 X21=ffff800082518989 X22=ffff800088d03548 X23=0000000000000004 X24=ffff800088d036f0 X25=0000000000000000 X26=0000000000000008 X27=ffff800088d0359e X28=ffff800082518989 X29=ffff800088d033a0 X30=ffff800081a903cc SP=ffff800088d033a0 PSTATE=624020c9 -ZC- EL2h SVCR=00000000 -- BTYPE=0 FPCR=00000000 FPSR=00000000 P00=0000000000000000 P01=0000000000000000 P02=0000000000000000 P03=0000000000000000 P04=0000000000000000 P05=0000000000000000 P06=0000000000000000 P07=0000000000000000 P08=0000000000000000 P09=0000000000000000 P10=0000000000000000 P11=0000000000000000 P12=0000000000000000 P13=0000000000000000 P14=0000000000000000 P15=0000000000000000 FFR=0000000000000000 Z00=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:ffffff80ffffffd0:0000303030303031 Z01=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:ffff000000000000 Z02=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:00000000ff000000 Z03=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:ffff000000000000:ffffffffffff0000 Z04=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:ff000000ffffff00 Z05=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z06=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000ffff99d46458:0000ffff99d46450 Z07=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000ffff99d46468:0000ffff99d46460 Z08=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z09=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z10=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z11=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z12=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z13=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z14=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z15=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z16=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000ffffd20f4eb0:0000ffffd20f4eb0 Z17=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:ffffff80ffffffd0:0000ffffd20f4e80 Z18=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z19=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z20=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z21=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z22=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z23=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z24=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z25=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z26=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z27=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z28=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z29=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z30=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z31=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 info registers vcpu 1 CPU#1 PC=ffff800081a96a14 X00=0000000000000001 X01=ffff800080410250 X02=ffff800088eb3550 X03=ffff800088eb3590 X04=0000000000000007 X05=ffff800088eb3538 X06=ffff800088eb3550 X07=ffff800088eb3990 X08=ffff800088eb34f8 X09=0000000000000dc0 X10=ffffffffffffffc0 X11=0000000000000000 X12=0000000000073a52 X13=0000000000000002 X14=0000000000000000 X15=0000000000000001 X16=00000000239cfe5c X17=0000000016154765 X18=0000000000000014 X19=ffff800080159cc0 X20=ffff800088eb3550 X21=fcf0000005c39240 X22=0000000000000000 X23=f0bf800080159eb8 X24=0000000000000000 X25=0000000000000088 X26=ffff8000827b0000 X27=f2f0000003043f00 X28=00000000000001a4 X29=ffff800088eb3460 X30=ffff800081a96a54 SP=ffff800088eb3460 PSTATE=80402009 N--- EL2h SVCR=00000000 -- BTYPE=0 FPCR=00000000 FPSR=00000000 P00=0000000000000000 P01=0000000000000000 P02=0000000000000000 P03=0000000000000000 P04=0000000000000000 P05=0000000000000000 P06=0000000000000000 P07=0000000000000000 P08=0000000000000000 P09=0000000000000000 P10=0000000000000000 P11=0000000000000000 P12=0000000000000000 P13=0000000000000000 P14=0000000000000000 P15=0000000000000000 FFR=0000000000000000 Z00=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:ffffff80ffffffd0:0000303030303031 Z01=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:ffff000000000000 Z02=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:00000000ff000000 Z03=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:ffff000000000000:ffffffffffff0000 Z04=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:ff000000ffffff00 Z05=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z06=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000ffff99d46458:0000ffff99d46450 Z07=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000ffff99d46468:0000ffff99d46460 Z08=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z09=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z10=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z11=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z12=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z13=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z14=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z15=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z16=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000ffffd20f4eb0:0000ffffd20f4eb0 Z17=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:ffffff80ffffffd0:0000ffffd20f4e80 Z18=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z19=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z20=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z21=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z22=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z23=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z24=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z25=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z26=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z27=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z28=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z29=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z30=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000 Z31=0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000:0000000000000000