Warning: Permanently added '[localhost]:56064' (ECDSA) to the list of known hosts.
2021/12/06 11:29:07 fuzzer started
2021/12/06 11:29:07 dialing manager at localhost:35719
2021/12/06 11:29:07 checking machine...
2021/12/06 11:29:07 checking revisions...
syzkaller login: [ 35.742021] kmemleak: Automatic memory scanning thread ended
2021/12/06 11:29:07 testing simple program...
[ 35.779650] cgroup: Unknown subsys name 'net'
[ 35.780924] cgroup: Unknown subsys name 'net_prio'
[ 35.782779] cgroup: Unknown subsys name 'devices'
[ 35.784474] cgroup: Unknown subsys name 'blkio'
[ 35.807568]
[ 35.807990] =========================
[ 35.808854] WARNING: held lock freed!
[ 35.809736] 5.16.0-rc3-next-20211203 #1 Not tainted
[ 35.811101] -------------------------
[ 35.812325] kworker/1:1/29 is freeing memory ffff88800ea57c00-ffff88800ea57dff, with a lock still held there!
[ 35.814633] ffff88800ea57d48 (&root->kernfs_rwsem){++++}-{3:3}, at: __kernfs_remove+0x627/0xb00
[ 35.816384] 3 locks held by kworker/1:1/29:
[ 35.817239] #0: ffff8880080a6138 ((wq_completion)cgroup_destroy){+.+.}-{0:0}, at: process_one_work+0x929/0x1710
[ 35.819313] #1: ffff888008307da8 ((work_completion)(&(&css->destroy_rwork)->work)){+.+.}-{0:0}, at: process_one_work+0x95d/0x1710
[ 35.821660] #2: ffff88800ea57d48 (&root->kernfs_rwsem){++++}-{3:3}, at: __kernfs_remove+0x627/0xb00
[ 35.823518]
[ 35.823518] stack backtrace:
[ 35.824383] CPU: 1 PID: 29 Comm: kworker/1:1 Not tainted 5.16.0-rc3-next-20211203 #1
[ 35.825919] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[ 35.828205] Workqueue: cgroup_destroy css_free_rwork_fn
[ 35.829275] Call Trace:
[ 35.829794]
[ 35.830268] dump_stack_lvl+0x8b/0xb3
[ 35.831034] debug_check_no_locks_freed.cold+0xa5/0xb1
[ 35.832090] ? kernfs_put.part.0+0x334/0x540
[ 35.832977] kfree+0xb3/0x5a0
[ 35.833598] ? kmem_cache_free+0xce/0x640
[ 35.834442] kernfs_put.part.0+0x334/0x540
[ 35.835285] kernfs_put+0x42/0x50
[ 35.835960] __kernfs_remove+0x7ce/0xb00
[ 35.836756] ? lock_is_held_type+0xd7/0x130
[ 35.837602] ? kernfs_next_descendant_post+0x2f0/0x2f0
[ 35.838637] ? down_write+0xde/0x150
[ 35.839358] ? down_write_killable_nested+0x180/0x180
[ 35.840340] kernfs_destroy_root+0x89/0xb0
[ 35.841164] css_free_rwork_fn+0xa28/0xf40
[ 35.842013] process_one_work+0xa30/0x1710
[ 35.842846] ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[ 35.843760] ? rwlock_bug.part.0+0x90/0x90
[ 35.844589] ? _raw_spin_lock_irq+0x41/0x50
[ 35.845434] worker_thread+0x62a/0x13e0
[ 35.846238] ? process_one_work+0x1710/0x1710
[ 35.847121] kthread+0x40c/0x500
[ 35.847785] ? set_kthread_struct+0x130/0x130
[ 35.848662] ret_from_fork+0x22/0x30
[ 35.849383]
[ 35.849913] ==================================================================
[ 35.851329] BUG: KASAN: use-after-free in up_write+0x3ac/0x460
[ 35.852481] Read of size 8 at addr ffff88800ea57d40 by task kworker/1:1/29
[ 35.853827]
[ 35.854157] CPU: 1 PID: 29 Comm: kworker/1:1 Not tainted 5.16.0-rc3-next-20211203 #1
[ 35.855668] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[ 35.857896] Workqueue: cgroup_destroy css_free_rwork_fn
[ 35.858938] Call Trace:
[ 35.859435]
[ 35.859869] dump_stack_lvl+0x8b/0xb3
[ 35.860618] print_address_description.constprop.0+0x1f/0x180
[ 35.861763] ? up_write+0x3ac/0x460
[ 35.862488] ? up_write+0x3ac/0x460
[ 35.863196] kasan_report.cold+0x7f/0x11b
[ 35.864011] ? up_write+0x3ac/0x460
[ 35.864720] up_write+0x3ac/0x460
[ 35.865398] css_free_rwork_fn+0xa28/0xf40
[ 35.866238] process_one_work+0xa30/0x1710
[ 35.867070] ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[ 35.867985] ? rwlock_bug.part.0+0x90/0x90
[ 35.868812] ? _raw_spin_lock_irq+0x41/0x50
[ 35.869661] worker_thread+0x62a/0x13e0
[ 35.870464] ? process_one_work+0x1710/0x1710
[ 35.871342] kthread+0x40c/0x500
[ 35.872001] ? set_kthread_struct+0x130/0x130
[ 35.872876] ret_from_fork+0x22/0x30
[ 35.873609]
[ 35.874065]
[ 35.874380] Allocated by task 282:
[ 35.875061] kasan_save_stack+0x1e/0x40
[ 35.875837] __kasan_kmalloc+0x81/0xa0
[ 35.876597] kernfs_create_root+0x4c/0x410
[ 35.877423] cgroup_setup_root+0x346/0xb60
[ 35.878253] cgroup1_get_tree+0xc1b/0x1370
[ 35.879080] vfs_get_tree+0x8e/0x2f0
[ 35.879814] path_mount+0x131b/0x1f80
[ 35.880558] __x64_sys_mount+0x27e/0x300
[ 35.881348] do_syscall_64+0x3b/0x90
[ 35.882093] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 35.883107]
[ 35.883421] Freed by task 29:
[ 35.884020] kasan_save_stack+0x1e/0x40
[ 35.884792] kasan_set_track+0x21/0x30
[ 35.885550] kasan_set_free_info+0x20/0x30
[ 35.886394] __kasan_slab_free+0x108/0x170
[ 35.887217] kfree+0xc5/0x5a0
[ 35.887825] kernfs_put.part.0+0x334/0x540
[ 35.888653] kernfs_put+0x42/0x50
[ 35.889326] __kernfs_remove+0x7ce/0xb00
[ 35.890132] kernfs_destroy_root+0x89/0xb0
[ 35.890952] css_free_rwork_fn+0xa28/0xf40
[ 35.891775] process_one_work+0xa30/0x1710
[ 35.892599] worker_thread+0x62a/0x13e0
[ 35.893379] kthread+0x40c/0x500
[ 35.894047] ret_from_fork+0x22/0x30
[ 35.894771]
[ 35.895086] The buggy address belongs to the object at ffff88800ea57c00
[ 35.895086] which belongs to the cache kmalloc-512 of size 512
[ 35.897521] The buggy address is located 320 bytes inside of
[ 35.897521] 512-byte region [ffff88800ea57c00, ffff88800ea57e00)
[ 35.899812] The buggy address belongs to the page:
[ 35.900766] page:00000000756d2d35 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xea54
[ 35.902590] head:00000000756d2d35 order:2 compound_mapcount:0 compound_pincount:0
[ 35.904062] flags: 0x100000000010200(slab|head|node=0|zone=1)
[ 35.905235] raw: 0100000000010200 0000000000000000 dead000000000001 ffff888007841c80
[ 35.906779] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
[ 35.908299] page dumped because: kasan: bad access detected
[ 35.909401]
[ 35.909722] Memory state around the buggy address:
[ 35.910696] ffff88800ea57c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 35.912119] ffff88800ea57c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 35.913546] >ffff88800ea57d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 35.914980] ^
[ 35.916037] ffff88800ea57d80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 35.917464] ffff88800ea57e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 35.918890] ==================================================================
[ 35.955459] cgroup: Unknown subsys name 'hugetlb'
[ 35.956859] cgroup: Unknown subsys name 'rlimit'
executing program
executing program
executing program
VM DIAGNOSIS:
11:29:07 Registers:
info registers vcpu 0
RAX=dffffc0000000000 RBX=ffff888016d7f490 RCX=0000000000000000 RDX=0000000000000000
RSI=ffffffff81744abe RDI=ffff888016d7f49c RBP=0000000000000000 RSP=ffff888016d7f3a8
R8 =ffffffff85c14088 R9 =ffffffff85c1408c R10=ffffed1002dafe86 R11=0000000000034044
R12=ffff888016d7f490 R13=0000000000000000 R14=ffff8880156d1ac0 R15=0000000080000001
RIP=ffffffff8132581a RFL=00000217 [----APC] 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 0000555556e2a400 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=00007fdf3cdb9d40 CR3=000000000dfc2000 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 0000000000000000 0000000000000000
YMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM04=0000000000000000 0000000000000000 ffffffffffffffff ffffffffffffffff
YMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000
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
info registers vcpu 1
RAX=0000000000000032 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8
RSI=ffffffff823640e1 RDI=ffffffff87381a60 RBP=ffffffff87381a20 RSP=ffff888008307648
R8 =0000000000000000 R9 =0000000000000032 R10=ffffffff82365d23 R11=000000000000000a
R12=0000000000000032 R13=0000000000000032 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=00007fff73be0e08 CR3=000000001a57a000 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 bfe62e42fefa39ef
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