syz-executor1: vmalloc: allocation failure: 0 bytes, mode:0x6000c0(GFP_KERNEL), nodemask=(null),cpuset=syz1,mems_allowed=0-1
------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x90 kernel/workqueue.c:4916
WARNING: CPU: 1 PID: 45 at lib/debugobjects.c:325 debug_print_object+0x16a/0x250 lib/debugobjects.c:325
CPU: 0 PID: 13619 Comm: syz-executor1 Not tainted 4.20.0+ #13
Kernel panic - not syncing: panic_on_warn set ...
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1db/0x2d0 lib/dump_stack.c:113
warn_alloc.cold+0xc2/0x1c8 mm/page_alloc.c:3570
__vmalloc_node_range+0x57a/0x910 mm/vmalloc.c:1766
__vmalloc_node mm/vmalloc.c:1795 [inline]
__vmalloc_node_flags mm/vmalloc.c:1809 [inline]
vmalloc+0x6b/0x90 mm/vmalloc.c:1831
sel_write_load+0x1de/0x470 security/selinux/selinuxfs.c:557
__vfs_write+0x116/0xb40 fs/read_write.c:485
vfs_write+0x20c/0x580 fs/read_write.c:549
ksys_write+0x105/0x260 fs/read_write.c:598
__do_sys_write fs/read_write.c:610 [inline]
__se_sys_write fs/read_write.c:607 [inline]
__x64_sys_write+0x73/0xb0 fs/read_write.c:607
do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457ec9
Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f8a330dcc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000005
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8a330dd6d4
R13: 00000000004c720f R14: 00000000004dc9a0 R15: 00000000ffffffff
CPU: 1 PID: 45 Comm: kworker/u4:2 Not tainted 4.20.0+ #13
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'kvm' (00000000fe0c504e): kobject_uevent_env
Workqueue: netns cleanup_net
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1db/0x2d0 lib/dump_stack.c:113
Mem-Info:
panic+0x2cb/0x65c kernel/panic.c:214
active_anon:186697 inactive_anon:2886 isolated_anon:0
active_file:11469 inactive_file:33802 isolated_file:0
unevictable:26475 dirty:305 writeback:0 unstable:0
slab_reclaimable:13701 slab_unreclaimable:118789
mapped:48692 shmem:259 pagetables:2493 bounce:0
free:1131886 free_pcp:505 free_cma:0
Node 0 active_anon:746764kB inactive_anon:11544kB active_file:43052kB inactive_file:135208kB unevictable:107700kB isolated(anon):0kB isolated(file):0kB mapped:196392kB dirty:1184kB writeback:0kB shmem:1036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 774144kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no
__warn.cold+0x20/0x48 kernel/panic.c:571
report_bug+0x263/0x2b0 lib/bug.c:186
fixup_bug arch/x86/kernel/traps.c:178 [inline]
fixup_bug arch/x86/kernel/traps.c:173 [inline]
do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271
do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:290
kobject: 'kvm' (00000000fe0c504e): fill_kobj_path: path = '/devices/virtual/misc/kvm'
invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:debug_print_object+0x16a/0x250 lib/debugobjects.c:325
Code: dd a0 bd 81 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd a0 bd 81 88 48 c7 c7 40 b3 81 88 e8 b6 64 ba fd <0f> 0b 83 05 f1 ef ca 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3
RSP: 0018:ffff8880a96c7270 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81684ce6 RDI: 0000000000000005
RBP: ffff8880a96c72b0 R08: ffff8880a9714440 R09: ffffed1015ce3ef9
R10: ffffed1015ce3ef8 R11: ffff8880ae71f7c7 R12: 0000000000000001
Node 1 active_anon:24kB inactive_anon:0kB active_file:224kB inactive_file:0kB unevictable:900kB isolated(anon):0kB isolated(file):0kB mapped:976kB dirty:36kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no
R13: ffffffff899ad720 R14: ffffffff816e9fa0 R15: dffffc0000000000
__debug_check_no_obj_freed lib/debugobjects.c:785 [inline]
debug_check_no_obj_freed+0x39d/0x588 lib/debugobjects.c:817
kfree+0xbd/0x230 mm/slab.c:3803
kvfree+0x61/0x70 mm/util.c:445
netdev_freemem+0x4c/0x60 net/core/dev.c:8991
netdev_release+0x119/0x180 net/core/net-sysfs.c:1640
Node 0 DMA free:15908kB min:220kB low:272kB high:324kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
device_release+0x7d/0x210 drivers/base/core.c:919
kobject_cleanup lib/kobject.c:662 [inline]
kobject_release lib/kobject.c:691 [inline]
kref_put include/linux/kref.h:67 [inline]
kobject_put.cold+0x28f/0x2ec lib/kobject.c:708
netdev_run_todo+0x704/0xae0 net/core/dev.c:8896
kobject: 'loop5' (000000005923dab9): kobject_uevent_env
kobject: 'loop5' (000000005923dab9): fill_kobj_path: path = '/devices/virtual/block/loop5'
rtnl_unlock+0xe/0x10 net/core/rtnetlink.c:117
default_device_exit_batch+0x4d3/0x5f0 net/core/dev.c:9677
kobject: 'kvm' (00000000fe0c504e): kobject_uevent_env
lowmem_reserve[]: 0 2535 2537 2537
ops_exit_list.isra.0+0x105/0x160 net/core/net_namespace.c:156
cleanup_net+0x51d/0xb10 net/core/net_namespace.c:551
kobject: 'kvm' (00000000fe0c504e): fill_kobj_path: path = '/devices/virtual/misc/kvm'
process_one_work+0xd0c/0x1ce0 kernel/workqueue.c:2153
kobject: 'loop2' (00000000f7365908): kobject_uevent_env
kobject: 'loop2' (00000000f7365908): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'kvm' (00000000fe0c504e): kobject_uevent_env
Node 0 DMA32 free:754712kB min:36080kB low:45100kB high:54120kB active_anon:746740kB inactive_anon:11544kB active_file:32472kB inactive_file:135188kB unevictable:120576kB writepending:1228kB present:3129332kB managed:2599664kB mlocked:120576kB kernel_stack:9472kB pagetables:10160kB bounce:0kB free_pcp:2484kB local_pcp:1224kB free_cma:0kB
worker_thread+0x143/0x14a0 kernel/workqueue.c:2296
kobject: 'kvm' (00000000fe0c504e): fill_kobj_path: path = '/devices/virtual/misc/kvm'
lowmem_reserve[]: 0 0 2 2
kthread+0x357/0x430 kernel/kthread.c:246
kobject: 'loop3' (00000000355bbc1e): kobject_uevent_env
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
======================================================
WARNING: possible circular locking dependency detected
4.20.0+ #13 Not tainted
------------------------------------------------------
kworker/u4:2/45 is trying to acquire lock:
00000000303cdb29 ((console_sem).lock){-.-.}, at: down_trylock+0x13/0x70 kernel/locking/semaphore.c:136
but task is already holding lock:
00000000cde2853b (&obj_hash[i].lock){-.-.}, at: __debug_check_no_obj_freed lib/debugobjects.c:776 [inline]
00000000cde2853b (&obj_hash[i].lock){-.-.}, at: debug_check_no_obj_freed+0x170/0x588 lib/debugobjects.c:817
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (&obj_hash[i].lock){-.-.}:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152
__debug_object_init+0xf6/0x12d0 lib/debugobjects.c:383
debug_object_init+0x16/0x20 lib/debugobjects.c:431
debug_hrtimer_init kernel/time/hrtimer.c:401 [inline]
debug_init kernel/time/hrtimer.c:449 [inline]
hrtimer_init+0x97/0x480 kernel/time/hrtimer.c:1299
init_dl_task_timer+0x1b/0x50 kernel/sched/deadline.c:1057
__sched_fork+0x2bf/0x5b0 kernel/sched/core.c:2166
init_idle+0x75/0x670 kernel/sched/core.c:5374
sched_init+0xb10/0xbe8 kernel/sched/core.c:6063
start_kernel+0x445/0x8bd init/main.c:608
x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:470
x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:451
secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243
-> #2 (&rq->lock){-.-.}:
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144
rq_lock kernel/sched/sched.h:1149 [inline]
task_fork_fair+0xb5/0x7a0 kernel/sched/fair.c:10058
sched_fork+0x437/0xb90 kernel/sched/core.c:2359
copy_process+0x1ff6/0x8730 kernel/fork.c:1888
_do_fork+0x1a9/0x1170 kernel/fork.c:2217
kernel_thread+0x34/0x40 kernel/fork.c:2276
rest_init+0x28/0x37b init/main.c:408
arch_call_rest_init+0xe/0x1b
start_kernel+0x882/0x8bd init/main.c:740
x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:470
x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:451
secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243
-> #1 (&p->pi_lock){-.-.}:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152
try_to_wake_up+0xb9/0x1480 kernel/sched/core.c:1965
wake_up_process+0x10/0x20 kernel/sched/core.c:2129
__up.isra.0+0x1c0/0x2a0 kernel/locking/semaphore.c:262
up+0x13e/0x1c0 kernel/locking/semaphore.c:187
__up_console_sem+0xb7/0x1c0 kernel/printk/printk.c:236
console_unlock+0x778/0x11e0 kernel/printk/printk.c:2426
vprintk_emit+0x370/0x960 kernel/printk/printk.c:1931
vprintk_default+0x28/0x30 kernel/printk/printk.c:1958
vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398
printk+0xba/0xed kernel/printk/printk.c:1991
kauditd_printk_skb kernel/audit.c:545 [inline]
kauditd_hold_skb.cold+0x3f/0x4e kernel/audit.c:578
kauditd_send_queue+0x133/0x170 kernel/audit.c:741
kauditd_thread+0x808/0xb80 kernel/audit.c:867
kthread+0x357/0x430 kernel/kthread.c:246
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
-> #0 ((console_sem).lock){-.-.}:
lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152
down_trylock+0x13/0x70 kernel/locking/semaphore.c:136
__down_trylock_console_sem+0xa8/0x210 kernel/printk/printk.c:219
console_trylock+0x15/0xa0 kernel/printk/printk.c:2242
console_trylock_spinning kernel/printk/printk.c:1662 [inline]
vprintk_emit+0x351/0x960 kernel/printk/printk.c:1930
vprintk_default+0x28/0x30 kernel/printk/printk.c:1958
vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398
printk+0xba/0xed kernel/printk/printk.c:1991
__warn_printk+0x9c/0x100 kernel/panic.c:625
debug_print_object+0x16a/0x250 lib/debugobjects.c:325
__debug_check_no_obj_freed lib/debugobjects.c:785 [inline]
debug_check_no_obj_freed+0x39d/0x588 lib/debugobjects.c:817
kfree+0xbd/0x230 mm/slab.c:3803
kvfree+0x61/0x70 mm/util.c:445
netdev_freemem+0x4c/0x60 net/core/dev.c:8991
netdev_release+0x119/0x180 net/core/net-sysfs.c:1640
device_release+0x7d/0x210 drivers/base/core.c:919
kobject_cleanup lib/kobject.c:662 [inline]
kobject_release lib/kobject.c:691 [inline]
kref_put include/linux/kref.h:67 [inline]
kobject_put.cold+0x28f/0x2ec lib/kobject.c:708
netdev_run_todo+0x704/0xae0 net/core/dev.c:8896
rtnl_unlock+0xe/0x10 net/core/rtnetlink.c:117
default_device_exit_batch+0x4d3/0x5f0 net/core/dev.c:9677
ops_exit_list.isra.0+0x105/0x160 net/core/net_namespace.c:156
cleanup_net+0x51d/0xb10 net/core/net_namespace.c:551
process_one_work+0xd0c/0x1ce0 kernel/workqueue.c:2153
worker_thread+0x143/0x14a0 kernel/workqueue.c:2296
kthread+0x357/0x430 kernel/kthread.c:246
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
other info that might help us debug this:
Chain exists of:
(console_sem).lock --> &rq->lock --> &obj_hash[i].lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&obj_hash[i].lock);
lock(&rq->lock);
lock(&obj_hash[i].lock);
lock((console_sem).lock);
*** DEADLOCK ***
4 locks held by kworker/u4:2/45:
#0: 00000000f47a0872 ((wq_completion)"%s""netns"){+.+.}, at: __write_once_size include/linux/compiler.h:218 [inline]
#0: 00000000f47a0872 ((wq_completion)"%s""netns"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: 00000000f47a0872 ((wq_completion)"%s""netns"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline]
#0: 00000000f47a0872 ((wq_completion)"%s""netns"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline]
#0: 00000000f47a0872 ((wq_completion)"%s""netns"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline]
#0: 00000000f47a0872 ((wq_completion)"%s""netns"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline]
#0: 00000000f47a0872 ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0xbc7/0x1ce0 kernel/workqueue.c:2124
#1: 000000001217bfc9 (net_cleanup_work){+.+.}, at: process_one_work+0xc1d/0x1ce0 kernel/workqueue.c:2128
#2: 0000000042409365 (pernet_ops_rwsem){++++}, at: cleanup_net+0x126/0xb10 net/core/net_namespace.c:518
#3: 00000000cde2853b (&obj_hash[i].lock){-.-.}, at: __debug_check_no_obj_freed lib/debugobjects.c:776 [inline]
#3: 00000000cde2853b (&obj_hash[i].lock){-.-.}, at: debug_check_no_obj_freed+0x170/0x588 lib/debugobjects.c:817
stack backtrace:
CPU: 1 PID: 45 Comm: kworker/u4:2 Not tainted 4.20.0+ #13
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1db/0x2d0 lib/dump_stack.c:113
print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1224
check_prev_add kernel/locking/lockdep.c:1866 [inline]
check_prevs_add kernel/locking/lockdep.c:1979 [inline]
validate_chain kernel/locking/lockdep.c:2350 [inline]
__lock_acquire+0x3014/0x4a30 kernel/locking/lockdep.c:3338
lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152
down_trylock+0x13/0x70 kernel/locking/semaphore.c:136
__down_trylock_console_sem+0xa8/0x210 kernel/printk/printk.c:219
console_trylock+0x15/0xa0 kernel/printk/printk.c:2242
console_trylock_spinning kernel/printk/printk.c:1662 [inline]
vprintk_emit+0x351/0x960 kernel/printk/printk.c:1930
vprintk_default+0x28/0x30 kernel/printk/printk.c:1958
vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398
printk+0xba/0xed kernel/printk/printk.c:1991
__warn_printk+0x9c/0x100 kernel/panic.c:625
debug_print_object+0x16a/0x250 lib/debugobjects.c:325
__debug_check_no_obj_freed lib/debugobjects.c:785 [inline]
debug_check_no_obj_freed+0x39d/0x588 lib/debugobjects.c:817
kfree+0xbd/0x230 mm/slab.c:3803
kvfree+0x61/0x70 mm/util.c:445
netdev_freemem+0x4c/0x60 net/core/dev.c:8991
netdev_release+0x119/0x180 net/core/net-sysfs.c:1640
device_release+0x7d/0x210 drivers/base/core.c:919
kobject_cleanup lib/kobject.c:662 [inline]
kobject_release lib/kobject.c:691 [inline]
kref_put include/linux/kref.h:67 [inline]
kobject_put.cold+0x28f/0x2ec lib/kobject.c:708
netdev_run_todo+0x704/0xae0 net/core/dev.c:8896
rtnl_unlock+0xe/0x10 net/core/rtnetlink.c:117
default_device_exit_batch+0x4d3/0x5f0 net/core/dev.c:9677
ops_exit_list.isra.0+0x105/0x160 net/core/net_namespace.c:156
cleanup_net+0x51d/0xb10 net/core/net_namespace.c:551
process_one_work+0xd0c/0x1ce0 kernel/workqueue.c:2153
worker_thread+0x143/0x14a0 kernel/workqueue.c:2296
kthread+0x357/0x430 kernel/kthread.c:246
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..