Warning: Permanently added '10.128.1.64' (ECDSA) to the list of known hosts.
2021/11/26 05:42:53 fuzzer started
2021/11/26 05:42:53 connecting to host at 10.128.0.169:37601
2021/11/26 05:42:53 checking machine...
2021/11/26 05:42:53 checking revisions...
2021/11/26 05:42:53 testing simple program...
[ 71.664435][ T6532] cgroup: Unknown subsys name 'net'
[ 71.671436][ T6532]
[ 71.673767][ T6532] =========================
[ 71.678267][ T6532] WARNING: held lock freed!
[ 71.682763][ T6532] 5.16.0-rc2-next-20211126-syzkaller #0 Not tainted
[ 71.689829][ T6532] -------------------------
[ 71.694514][ T6532] syz-executor/6532 is freeing memory ffff88807f06e400-ffff88807f06e5ff, with a lock still held there!
[ 71.705898][ T6532] ffff88807f06e548 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_destroy_root+0x81/0xb0
[ 71.715629][ T6532] 2 locks held by syz-executor/6532:
[ 71.720904][ T6532] #0: ffffffff8bbc5d48 (cgroup_mutex){+.+.}-{3:3}, at: cgroup_lock_and_drain_offline+0xa5/0x900
[ 71.731410][ T6532] #1: ffff88807f06e548 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_destroy_root+0x81/0xb0
[ 71.741566][ T6532]
[ 71.741566][ T6532] stack backtrace:
[ 71.747432][ T6532] CPU: 0 PID: 6532 Comm: syz-executor Not tainted 5.16.0-rc2-next-20211126-syzkaller #0
[ 71.757140][ T6532] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 71.767266][ T6532] Call Trace:
[ 71.770535][ T6532]
[ 71.773455][ T6532] dump_stack_lvl+0xcd/0x134
[ 71.778337][ T6532] debug_check_no_locks_freed.cold+0x9d/0xa9
[ 71.784397][ T6532] ? lockdep_hardirqs_on+0x79/0x100
[ 71.789670][ T6532] slab_free_freelist_hook+0x73/0x1c0
[ 71.795032][ T6532] ? kernfs_put.part.0+0x331/0x540
[ 71.800397][ T6532] kfree+0xe0/0x430
[ 71.804203][ T6532] ? kmem_cache_free+0xba/0x4a0
[ 71.809124][ T6532] ? rwlock_bug.part.0+0x90/0x90
[ 71.814055][ T6532] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70
[ 71.820296][ T6532] kernfs_put.part.0+0x331/0x540
[ 71.825232][ T6532] kernfs_put+0x42/0x50
[ 71.829371][ T6532] __kernfs_remove+0x7a3/0xb20
[ 71.834208][ T6532] ? kernfs_next_descendant_post+0x2f0/0x2f0
[ 71.840182][ T6532] ? down_write+0xde/0x150
[ 71.844600][ T6532] ? down_write_killable_nested+0x180/0x180
[ 71.850623][ T6532] kernfs_destroy_root+0x89/0xb0
[ 71.855564][ T6532] cgroup_setup_root+0x3a6/0xad0
[ 71.860501][ T6532] ? rebind_subsystems+0x10e0/0x10e0
[ 71.865800][ T6532] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[ 71.872153][ T6532] cgroup1_get_tree+0xd33/0x1390
[ 71.877090][ T6532] vfs_get_tree+0x89/0x2f0
[ 71.881502][ T6532] path_mount+0x1320/0x1fa0
[ 71.886013][ T6532] ? kmem_cache_free+0xba/0x4a0
[ 71.890878][ T6532] ? finish_automount+0xaf0/0xaf0
[ 71.895897][ T6532] ? putname+0xfe/0x140
[ 71.900063][ T6532] __x64_sys_mount+0x27f/0x300
[ 71.904896][ T6532] ? copy_mnt_ns+0xae0/0xae0
[ 71.909485][ T6532] ? syscall_enter_from_user_mode+0x21/0x70
[ 71.915514][ T6532] do_syscall_64+0x35/0xb0
[ 71.919923][ T6532] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 71.925823][ T6532] RIP: 0033:0x7f517c6f401a
[ 71.930369][ T6532] Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
[ 71.950318][ T6532] RSP: 002b:00007ffe8ba71698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 71.958895][ T6532] RAX: ffffffffffffffda RBX: 00007ffe8ba71828 RCX: 00007f517c6f401a
[ 71.967063][ T6532] RDX: 00007f517c756fd6 RSI: 00007f517c74d29a RDI: 00007f517c74bd71
[ 71.975034][ T6532] RBP: 00007f517c74d29a R08: 00007f517c74d3f7 R09: 0000000000000026
[ 71.982997][ T6532] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe8ba716a0
[ 71.991114][ T6532] R13: 00007ffe8ba71848 R14: 00007ffe8ba71770 R15: 00007f517c74d3f1
[ 71.999089][ T6532]
[ 72.003665][ T6532] ==================================================================
[ 72.011733][ T6532] BUG: KASAN: use-after-free in up_write+0x3ac/0x470
[ 72.018425][ T6532] Read of size 8 at addr ffff88807f06e540 by task syz-executor/6532
[ 72.026379][ T6532]
[ 72.028683][ T6532] CPU: 1 PID: 6532 Comm: syz-executor Not tainted 5.16.0-rc2-next-20211126-syzkaller #0
[ 72.038379][ T6532] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 72.048433][ T6532] Call Trace:
[ 72.051704][ T6532]
[ 72.054620][ T6532] dump_stack_lvl+0xcd/0x134
[ 72.059289][ T6532] print_address_description.constprop.0.cold+0xa5/0x3ed
[ 72.066310][ T6532] ? up_write+0x3ac/0x470
[ 72.070621][ T6532] ? up_write+0x3ac/0x470
[ 72.074935][ T6532] kasan_report.cold+0x83/0xdf
[ 72.079703][ T6532] ? up_write+0x3ac/0x470
[ 72.084119][ T6532] up_write+0x3ac/0x470
[ 72.088286][ T6532] cgroup_setup_root+0x3a6/0xad0
[ 72.093273][ T6532] ? rebind_subsystems+0x10e0/0x10e0
[ 72.098553][ T6532] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[ 72.104805][ T6532] cgroup1_get_tree+0xd33/0x1390
[ 72.109834][ T6532] vfs_get_tree+0x89/0x2f0
[ 72.114417][ T6532] path_mount+0x1320/0x1fa0
[ 72.119058][ T6532] ? kmem_cache_free+0xba/0x4a0
[ 72.123945][ T6532] ? finish_automount+0xaf0/0xaf0
[ 72.128978][ T6532] ? putname+0xfe/0x140
[ 72.133128][ T6532] __x64_sys_mount+0x27f/0x300
[ 72.137918][ T6532] ? copy_mnt_ns+0xae0/0xae0
[ 72.142495][ T6532] ? syscall_enter_from_user_mode+0x21/0x70
[ 72.148424][ T6532] do_syscall_64+0x35/0xb0
[ 72.152921][ T6532] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 72.158809][ T6532] RIP: 0033:0x7f517c6f401a
[ 72.163304][ T6532] Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
[ 72.182983][ T6532] RSP: 002b:00007ffe8ba71698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 72.191389][ T6532] RAX: ffffffffffffffda RBX: 00007ffe8ba71828 RCX: 00007f517c6f401a
[ 72.199527][ T6532] RDX: 00007f517c756fd6 RSI: 00007f517c74d29a RDI: 00007f517c74bd71
[ 72.207486][ T6532] RBP: 00007f517c74d29a R08: 00007f517c74d3f7 R09: 0000000000000026
[ 72.215437][ T6532] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe8ba716a0
[ 72.223393][ T6532] R13: 00007ffe8ba71848 R14: 00007ffe8ba71770 R15: 00007f517c74d3f1
[ 72.231361][ T6532]
[ 72.234377][ T6532]
[ 72.236678][ T6532] Allocated by task 6532:
[ 72.240996][ T6532] kasan_save_stack+0x1e/0x50
[ 72.245933][ T6532] __kasan_kmalloc+0xa9/0xd0
[ 72.250521][ T6532] kernfs_create_root+0x4c/0x410
[ 72.255451][ T6532] cgroup_setup_root+0x243/0xad0
[ 72.260395][ T6532] cgroup1_get_tree+0xd33/0x1390
[ 72.265319][ T6532] vfs_get_tree+0x89/0x2f0
[ 72.269728][ T6532] path_mount+0x1320/0x1fa0
[ 72.274213][ T6532] __x64_sys_mount+0x27f/0x300
[ 72.279066][ T6532] do_syscall_64+0x35/0xb0
[ 72.283484][ T6532] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 72.289448][ T6532]
[ 72.291759][ T6532] Freed by task 6532:
[ 72.295823][ T6532] kasan_save_stack+0x1e/0x50
[ 72.300497][ T6532] kasan_set_track+0x21/0x30
[ 72.305107][ T6532] kasan_set_free_info+0x20/0x30
[ 72.310032][ T6532] __kasan_slab_free+0x103/0x170
[ 72.314958][ T6532] slab_free_freelist_hook+0x8b/0x1c0
[ 72.320313][ T6532] kfree+0xe0/0x430
[ 72.324104][ T6532] kernfs_put.part.0+0x331/0x540
[ 72.329024][ T6532] kernfs_put+0x42/0x50
[ 72.333162][ T6532] __kernfs_remove+0x7a3/0xb20
[ 72.337906][ T6532] kernfs_destroy_root+0x89/0xb0
[ 72.342822][ T6532] cgroup_setup_root+0x3a6/0xad0
[ 72.347742][ T6532] cgroup1_get_tree+0xd33/0x1390
[ 72.352659][ T6532] vfs_get_tree+0x89/0x2f0
[ 72.357057][ T6532] path_mount+0x1320/0x1fa0
[ 72.361539][ T6532] __x64_sys_mount+0x27f/0x300
[ 72.366283][ T6532] do_syscall_64+0x35/0xb0
[ 72.370677][ T6532] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 72.376550][ T6532]
[ 72.378853][ T6532] The buggy address belongs to the object at ffff88807f06e400
[ 72.378853][ T6532] which belongs to the cache kmalloc-512 of size 512
[ 72.392883][ T6532] The buggy address is located 320 bytes inside of
[ 72.392883][ T6532] 512-byte region [ffff88807f06e400, ffff88807f06e600)
[ 72.406136][ T6532] The buggy address belongs to the page:
[ 72.411742][ T6532] page:ffffea0001fc1b00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7f06c
[ 72.421870][ T6532] head:ffffea0001fc1b00 order:2 compound_mapcount:0 compound_pincount:0
[ 72.430172][ T6532] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
[ 72.438134][ T6532] raw: 00fff00000010200 ffffea00008d1b00 dead000000000002 ffff888010c41c80
[ 72.446693][ T6532] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
[ 72.455248][ T6532] page dumped because: kasan: bad access detected
[ 72.461635][ T6532] page_owner tracks the page as allocated
[ 72.467344][ T6532] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5789, ts 47991282663, free_ts 38208673784
[ 72.486421][ T6532] get_page_from_freelist+0xa72/0x2f40
[ 72.491868][ T6532] __alloc_pages+0x1b2/0x500
[ 72.496440][ T6532] alloc_pages+0x1a7/0x300
[ 72.500837][ T6532] new_slab+0x261/0x460
[ 72.504970][ T6532] ___slab_alloc+0x798/0xf30
[ 72.509540][ T6532] __slab_alloc.constprop.0+0x4d/0xa0
[ 72.514890][ T6532] __kmalloc+0x2fb/0x340
[ 72.519111][ T6532] load_elf_phdrs+0x103/0x210
[ 72.523770][ T6532] load_elf_binary+0x18f4/0x4da0
[ 72.528804][ T6532] bprm_execve+0x7ef/0x19b0
[ 72.533292][ T6532] do_execveat_common+0x5e3/0x780
[ 72.538571][ T6532] __x64_sys_execve+0x8f/0xc0
[ 72.543225][ T6532] do_syscall_64+0x35/0xb0
[ 72.547621][ T6532] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 72.553495][ T6532] page last free stack trace:
[ 72.558145][ T6532] free_pcp_prepare+0x414/0xb60
[ 72.563095][ T6532] free_unref_page+0x19/0x690
[ 72.567765][ T6532] qlist_free_all+0x5a/0xf0
[ 72.572252][ T6532] kasan_quarantine_reduce+0x180/0x200
[ 72.577693][ T6532] __kasan_slab_alloc+0xa2/0xc0
[ 72.582616][ T6532] __kmalloc+0x1e7/0x340
[ 72.586842][ T6532] tomoyo_realpath_from_path+0xc3/0x620
[ 72.592459][ T6532] tomoyo_path_perm+0x21b/0x400
[ 72.597395][ T6532] security_inode_getattr+0xcf/0x140
[ 72.602659][ T6532] vfs_statx+0x164/0x390
[ 72.606879][ T6532] __do_sys_newlstat+0x91/0x110
[ 72.611734][ T6532] do_syscall_64+0x35/0xb0
[ 72.616147][ T6532] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 72.622030][ T6532]
[ 72.624331][ T6532] Memory state around the buggy address:
[ 72.629943][ T6532] ffff88807f06e400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 72.638069][ T6532] ffff88807f06e480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 72.646116][ T6532] >ffff88807f06e500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 72.654173][ T6532] ^
[ 72.660318][ T6532] ffff88807f06e580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 72.668390][ T6532] ffff88807f06e600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 72.676450][ T6532] ==================================================================
[ 72.687885][ T6532] Kernel panic - not syncing: panic_on_warn set ...
[ 72.694487][ T6532] CPU: 1 PID: 6532 Comm: syz-executor Tainted: G B 5.16.0-rc2-next-20211126-syzkaller #0
[ 72.705687][ T6532] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 72.715746][ T6532] Call Trace:
[ 72.719028][ T6532]
[ 72.721958][ T6532] dump_stack_lvl+0xcd/0x134
[ 72.726563][ T6532] panic+0x2b0/0x6dd
[ 72.730475][ T6532] ? __warn_printk+0xf3/0xf3
[ 72.735075][ T6532] ? preempt_schedule_common+0x59/0xc0
[ 72.740577][ T6532] ? up_write+0x3ac/0x470
[ 72.744892][ T6532] ? preempt_schedule_thunk+0x16/0x18
[ 72.750297][ T6532] ? trace_hardirqs_on+0x38/0x1c0
[ 72.755379][ T6532] ? trace_hardirqs_on+0x51/0x1c0
[ 72.760393][ T6532] ? up_write+0x3ac/0x470
[ 72.764820][ T6532] ? up_write+0x3ac/0x470
[ 72.769140][ T6532] end_report.cold+0x63/0x6f
[ 72.773829][ T6532] kasan_report.cold+0x71/0xdf
[ 72.778601][ T6532] ? up_write+0x3ac/0x470
[ 72.782926][ T6532] up_write+0x3ac/0x470
[ 72.787077][ T6532] cgroup_setup_root+0x3a6/0xad0
[ 72.792037][ T6532] ? rebind_subsystems+0x10e0/0x10e0
[ 72.797329][ T6532] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[ 72.803576][ T6532] cgroup1_get_tree+0xd33/0x1390
[ 72.808602][ T6532] vfs_get_tree+0x89/0x2f0
[ 72.813017][ T6532] path_mount+0x1320/0x1fa0
[ 72.817516][ T6532] ? kmem_cache_free+0xba/0x4a0
[ 72.822359][ T6532] ? finish_automount+0xaf0/0xaf0
[ 72.827376][ T6532] ? putname+0xfe/0x140
[ 72.831525][ T6532] __x64_sys_mount+0x27f/0x300
[ 72.836293][ T6532] ? copy_mnt_ns+0xae0/0xae0
[ 72.840875][ T6532] ? syscall_enter_from_user_mode+0x21/0x70
[ 72.846850][ T6532] do_syscall_64+0x35/0xb0
[ 72.851791][ T6532] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 72.857773][ T6532] RIP: 0033:0x7f517c6f401a
[ 72.862288][ T6532] Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
[ 72.882159][ T6532] RSP: 002b:00007ffe8ba71698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 72.890570][ T6532] RAX: ffffffffffffffda RBX: 00007ffe8ba71828 RCX: 00007f517c6f401a
[ 72.898531][ T6532] RDX: 00007f517c756fd6 RSI: 00007f517c74d29a RDI: 00007f517c74bd71
[ 72.906491][ T6532] RBP: 00007f517c74d29a R08: 00007f517c74d3f7 R09: 0000000000000026
[ 72.914458][ T6532] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe8ba716a0
[ 72.922514][ T6532] R13: 00007ffe8ba71848 R14: 00007ffe8ba71770 R15: 00007f517c74d3f1
[ 72.930667][ T6532]
[ 72.933842][ T6532] Kernel Offset: disabled
[ 72.938169][ T6532] Rebooting in 86400 seconds..