Warning: Permanently added '[localhost]:49332' (ECDSA) to the list of known hosts.
2021/12/06 11:34:29 fuzzer started
2021/12/06 11:34:29 dialing manager at localhost:35719
2021/12/06 11:34:29 checking machine...
2021/12/06 11:34:29 checking revisions...
syzkaller login: [ 35.193923] kmemleak: Automatic memory scanning thread ended
2021/12/06 11:34:30 testing simple program...
[ 35.235109] cgroup: Unknown subsys name 'net'
[ 35.237277] cgroup: Unknown subsys name 'net_prio'
[ 35.239131] cgroup: Unknown subsys name 'devices'
[ 35.241127] cgroup: Unknown subsys name 'blkio'
[ 35.261229]
[ 35.261680] =========================
[ 35.262577] WARNING: held lock freed!
[ 35.263466] 5.16.0-rc3-next-20211203 #1 Not tainted
[ 35.264694] -------------------------
[ 35.265844] kworker/1:3/83 is freeing memory ffff88800f9d7800-ffff88800f9d79ff, with a lock still held there!
[ 35.268194] ffff88800f9d7948 (&root->kernfs_rwsem){++++}-{3:3}, at: __kernfs_remove+0x627/0xb00
[ 35.269963] 3 locks held by kworker/1:3/83:
[ 35.270833] #0: ffff8880080a6138 ((wq_completion)cgroup_destroy){+.+.}-{0:0}, at: process_one_work+0x929/0x1710
[ 35.272874] #1: ffff88800f92fda8 ((work_completion)(&(&css->destroy_rwork)->work)){+.+.}-{0:0}, at: process_one_work+0x95d/0x1710
[ 35.275221] #2: ffff88800f9d7948 (&root->kernfs_rwsem){++++}-{3:3}, at: __kernfs_remove+0x627/0xb00
[ 35.277057]
[ 35.277057] stack backtrace:
[ 35.277937] CPU: 1 PID: 83 Comm: kworker/1:3 Not tainted 5.16.0-rc3-next-20211203 #1
[ 35.279492] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[ 35.281726] Workqueue: cgroup_destroy css_free_rwork_fn
[ 35.282792] Call Trace:
[ 35.283302]
[ 35.283750] dump_stack_lvl+0x8b/0xb3
[ 35.284509] debug_check_no_locks_freed.cold+0xa5/0xb1
[ 35.285557] ? kernfs_put.part.0+0x334/0x540
[ 35.286438] kfree+0xb3/0x5a0
[ 35.287085] ? kmem_cache_free+0xce/0x640
[ 35.287911] kernfs_put.part.0+0x334/0x540
[ 35.288768] kernfs_put+0x42/0x50
[ 35.289455] __kernfs_remove+0x7ce/0xb00
[ 35.290261] ? lock_is_held_type+0xd7/0x130
[ 35.291129] ? kernfs_next_descendant_post+0x2f0/0x2f0
[ 35.292167] ? down_write+0xde/0x150
[ 35.292903] ? down_write_killable_nested+0x180/0x180
[ 35.293932] kernfs_destroy_root+0x89/0xb0
[ 35.294779] css_free_rwork_fn+0xa28/0xf40
[ 35.295625] process_one_work+0xa30/0x1710
[ 35.296471] ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[ 35.297402] ? rwlock_bug.part.0+0x90/0x90
[ 35.298243] ? _raw_spin_lock_irq+0x41/0x50
[ 35.299126] worker_thread+0x62a/0x13e0
[ 35.299926] ? process_one_work+0x1710/0x1710
[ 35.300816] kthread+0x40c/0x500
[ 35.301488] ? set_kthread_struct+0x130/0x130
[ 35.302381] ret_from_fork+0x22/0x30
[ 35.303140]
[ 35.303672] ==================================================================
[ 35.305089] BUG: KASAN: use-after-free in up_write+0x3ac/0x460
[ 35.306262] Read of size 8 at addr ffff88800f9d7940 by task kworker/1:3/83
[ 35.307634]
[ 35.307959] CPU: 1 PID: 83 Comm: kworker/1:3 Not tainted 5.16.0-rc3-next-20211203 #1
[ 35.309490] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[ 35.311739] Workqueue: cgroup_destroy css_free_rwork_fn
[ 35.312804] Call Trace:
[ 35.313312]
[ 35.313757] dump_stack_lvl+0x8b/0xb3
[ 35.314532] print_address_description.constprop.0+0x1f/0x180
[ 35.315702] ? up_write+0x3ac/0x460
[ 35.316422] ? up_write+0x3ac/0x460
[ 35.317142] kasan_report.cold+0x7f/0x11b
[ 35.317967] ? up_write+0x3ac/0x460
[ 35.318702] up_write+0x3ac/0x460
[ 35.319395] css_free_rwork_fn+0xa28/0xf40
[ 35.320241] process_one_work+0xa30/0x1710
[ 35.321087] ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[ 35.322015] ? rwlock_bug.part.0+0x90/0x90
[ 35.322872] ? _raw_spin_lock_irq+0x41/0x50
[ 35.323733] worker_thread+0x62a/0x13e0
[ 35.324529] ? process_one_work+0x1710/0x1710
[ 35.325418] kthread+0x40c/0x500
[ 35.326092] ? set_kthread_struct+0x130/0x130
[ 35.326992] ret_from_fork+0x22/0x30
[ 35.327741]
[ 35.328200]
[ 35.328524] Allocated by task 281:
[ 35.329221] kasan_save_stack+0x1e/0x40
[ 35.330009] __kasan_kmalloc+0x81/0xa0
[ 35.330805] kernfs_create_root+0x4c/0x410
[ 35.331642] cgroup_setup_root+0x346/0xb60
[ 35.332480] cgroup1_get_tree+0xc1b/0x1370
[ 35.333320] vfs_get_tree+0x8e/0x2f0
[ 35.334064] path_mount+0x131b/0x1f80
[ 35.334828] __x64_sys_mount+0x27e/0x300
[ 35.335634] do_syscall_64+0x3b/0x90
[ 35.336370] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 35.337389]
[ 35.337713] Freed by task 83:
[ 35.338321] kasan_save_stack+0x1e/0x40
[ 35.339136] kasan_set_track+0x21/0x30
[ 35.339906] kasan_set_free_info+0x20/0x30
[ 35.340746] __kasan_slab_free+0x108/0x170
[ 35.341692] kfree+0xc5/0x5a0
[ 35.342435] kernfs_put.part.0+0x334/0x540
[ 35.343450] kernfs_put+0x42/0x50
[ 35.344260] __kernfs_remove+0x7ce/0xb00
[ 35.345214] kernfs_destroy_root+0x89/0xb0
[ 35.346207] css_free_rwork_fn+0xa28/0xf40
[ 35.347208] process_one_work+0xa30/0x1710
[ 35.348036] worker_thread+0x62a/0x13e0
[ 35.348808] kthread+0x40c/0x500
[ 35.349463] ret_from_fork+0x22/0x30
[ 35.350181]
[ 35.350495] The buggy address belongs to the object at ffff88800f9d7800
[ 35.350495] which belongs to the cache kmalloc-512 of size 512
[ 35.352950] The buggy address is located 320 bytes inside of
[ 35.352950] 512-byte region [ffff88800f9d7800, ffff88800f9d7a00)
[ 35.355255] The buggy address belongs to the page:
[ 35.356198] page:00000000050182a9 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xf9d4
[ 35.357996] head:00000000050182a9 order:2 compound_mapcount:0 compound_pincount:0
[ 35.359483] flags: 0x100000000010200(slab|head|node=0|zone=1)
[ 35.360644] raw: 0100000000010200 dead000000000100 dead000000000122 ffff888007841c80
[ 35.362161] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
[ 35.363682] page dumped because: kasan: bad access detected
[ 35.364777]
[ 35.365091] Memory state around the buggy address:
[ 35.366034] ffff88800f9d7800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 35.367450] ffff88800f9d7880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 35.368856] >ffff88800f9d7900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 35.370259] ^
[ 35.371308] ffff88800f9d7980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 35.372714] ffff88800f9d7a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 35.374115] ==================================================================
[ 35.413964] cgroup: Unknown subsys name 'hugetlb'
[ 35.415225] cgroup: Unknown subsys name 'rlimit'
executing program
executing program
executing program
VM DIAGNOSIS:
11:34:30 Registers:
info registers vcpu 0
RAX=ffffffff84078af0 RBX=ffffffff85032600 RCX=ffffffff8405abe1 RDX=ffffed100d9c7143
RSI=0000000000000001 RDI=ffffffff84078eaf RBP=0000000000000000 RSP=ffffffff85007e40
R8 =0000000000000000 R9 =ffff88806ce38a13 R10=ffffed100d9c7142 R11=0000000000000001
R12=fffffbfff0a064c0 R13=ffffffff858bd8d0 R14=0000000000000000 R15=dffffc0000000000
RIP=ffffffff84078afb RFL=00000246 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=1
ES =0000 0000000000000000 00000000 00000000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA]
DS =0000 0000000000000000 00000000 00000000
FS =0000 0000000000000000 00000000 00000000
GS =0000 ffff88806ce00000 00000000 00000000
LDT=0000 fffffe0000000000 00000000 00000000
TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy
GDT= fffffe0000001000 0000007f
IDT= fffffe0000000000 00000fff
CR0=80050033 CR2=00007ff9481206d8 CR3=000000000f968000 CR4=00350ef0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000
DR6=00000000ffff0ff0 DR7=0000000000000400
EFER=0000000000000d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
YMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM01=0000000000000000 0000000000000000 7465677261742e79 636e656772656d65
YMM02=0000000000000000 0000000000000000 ffffffffffffffff 0f0e0d0c0b0a0908
YMM03=0000000000000000 0000000000000000 0000000000000073 66626c7465677568
YMM04=0000000000000000 0000000000000000 2e2e2e2e2e2e2e2e 2e2e2e2e2e2e2e2e
YMM05=0000000000000000 0000000000000000 304d515f4b534944 445241485f554d45
YMM06=0000000000000000 0000000000000000 0000000000000000 6c6562616c636573
YMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM08=0000000000000000 0000000000000000 6564636261393837 3635343332313040
YMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000
info registers vcpu 1
RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8
RSI=ffffffff823640e1 RDI=ffffffff87381a60 RBP=ffffffff87381a20 RSP=ffff88800f92f648
R8 =0000000000000000 R9 =0000000000000020 R10=ffffffff82365d23 R11=000000000000000a
R12=0000000000000020 R13=0000000000000020 R14=ffffffff87381a20 R15=dffffc0000000000
RIP=ffffffff82364138 RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0000 0000000000000000 00000000 00000000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA]
DS =0000 0000000000000000 00000000 00000000
FS =0000 0000000000000000 00000000 00000000
GS =0000 ffff88806cf00000 00000000 00000000
LDT=0000 fffffe0000000000 00000000 00000000
TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy
GDT= fffffe0000048000 0000007f
IDT= fffffe0000000000 00000fff
CR0=80050033 CR2=000000c0007c4000 CR3=000000001e1fc000 CR4=00350ee0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000
DR6=00000000ffff0ff0 DR7=0000000000000400
EFER=0000000000000d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001fa0
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
YMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM02=0000000000000000 0000000000000000 0000000000000000 41082ec000000000
YMM03=0000000000000000 0000000000000000 0000ff0000000000 0000000000000000
YMM04=0000000000000000 0000000000000000 732f6c61636f6c2f 7273752f3d485441
YMM05=0000000000000000 0000000000000000 622f6c61636f6c2f 7273752f3a6e6962
YMM06=0000000000000000 0000000000000000 73752f3a6e696273 2f7273752f3a6e69
YMM07=0000000000000000 0000000000000000 6e69622f3a6e6962 732f3a6e69622f72
YMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000