syzbot

==================================================================
BUG: KASAN: use-after-free in __list_del_entry_valid+0x2f/0x120 lib/list_debug.c:46
Read of size 8 at addr ffff88810bd54a88 by task kworker/0:1/15

CPU: 0 PID: 15 Comm: kworker/0:1 Not tainted 5.10.226-syzkaller-00001-g6a01908517df #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events binder_deferred_func

Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118
 print_address_description+0x81/0x3b0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0x179/0x1c0 mm/kasan/report.c:452
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
 __list_del_entry_valid+0x2f/0x120 lib/list_debug.c:46
 __list_del_entry include/linux/list.h:132 [inline]
 list_del_init include/linux/list.h:204 [inline]
 binder_dequeue_work_head_ilocked drivers/android/binder.c:515 [inline]
 binder_release_work+0xcd/0x680 drivers/android/binder.c:5126
 binder_deferred_release drivers/android/binder.c:6278 [inline]
 binder_deferred_func+0x1847/0x1bc0 drivers/android/binder.c:6313
 process_one_work+0x6dc/0xbd0 kernel/workqueue.c:2301
 worker_thread+0xaea/0x1510 kernel/workqueue.c:2447
 kthread+0x34b/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298

Allocated by task 297:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:430 [inline]
 ____kasan_kmalloc+0xdb/0x110 mm/kasan/common.c:509
 __kasan_kmalloc+0x9/0x10 mm/kasan/common.c:518
 kasan_kmalloc include/linux/kasan.h:254 [inline]
 kmem_cache_alloc_trace+0x18a/0x2e0 mm/slub.c:2974
 kmalloc include/linux/slab.h:552 [inline]
 kzalloc include/linux/slab.h:664 [inline]
 binder_request_freeze_notification drivers/android/binder.c:3867 [inline]
 binder_thread_write+0x9ce/0x6c70 drivers/android/binder.c:4495
 binder_ioctl_write_read+0x216/0x6a80 drivers/android/binder.c:5411
 binder_ioctl+0x314/0x1e00 drivers/android/binder.c:5727
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl+0x114/0x190 fs/ioctl.c:739
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:739
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

Freed by task 15:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:45
 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370
 ____kasan_slab_free+0x121/0x160 mm/kasan/common.c:362
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:370
 kasan_slab_free include/linux/kasan.h:220 [inline]
 slab_free_hook mm/slub.c:1595 [inline]
 slab_free_freelist_hook+0xc0/0x190 mm/slub.c:1621
 slab_free mm/slub.c:3203 [inline]
 kfree+0xc3/0x270 mm/slub.c:4191
 binder_free_ref+0x128/0x260 drivers/android/binder.c:1453
 binder_deferred_release drivers/android/binder.c:6273 [inline]
 binder_deferred_func+0x171c/0x1bc0 drivers/android/binder.c:6313
 process_one_work+0x6dc/0xbd0 kernel/workqueue.c:2301
 worker_thread+0xaea/0x1510 kernel/workqueue.c:2447
 kthread+0x34b/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298

Last potentially related work creation:
 kasan_save_stack+0x3b/0x60 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xd3/0x100 mm/kasan/generic.c:348
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
 __call_rcu kernel/rcu/tree.c:2976 [inline]
 call_rcu+0x135/0x11f0 kernel/rcu/tree.c:3050
 nf_hook_entries_free net/netfilter/core.c:88 [inline]
 __nf_register_net_hook+0x634/0x7c0 net/netfilter/core.c:419
 nf_register_net_hook+0xb6/0x190 net/netfilter/core.c:536
 nf_register_net_hooks+0x44/0x1b0 net/netfilter/core.c:552
 nf_nat_register_fn+0x461/0x5e0 net/netfilter/nf_nat_core.c:1063
 nf_nat_ipv4_register_fn+0x4b/0x60 net/netfilter/nf_nat_proto.c:786
 ipt_nat_register_lookups net/ipv4/netfilter/iptable_nat.c:68 [inline]
 iptable_nat_table_init+0x9e/0x260 net/ipv4/netfilter/iptable_nat.c:106
 iptable_nat_init+0x3a/0x6f net/ipv4/netfilter/iptable_nat.c:142
 do_one_initcall+0x189/0x620 init/main.c:1197
 do_initcall_level+0x186/0x304 init/main.c:1270
 do_initcalls+0x4e/0x8e init/main.c:1286
 do_basic_setup+0x88/0x91 init/main.c:1306
 kernel_init_freeable+0x2be/0x3f5 init/main.c:1510
 kernel_init+0x11/0x280 init/main.c:1397
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298

The buggy address belongs to the object at ffff88810bd54a80
 which belongs to the cache kmalloc-64 of size 64
The buggy address is located 8 bytes inside of
 64-byte region [ffff88810bd54a80, ffff88810bd54ac0)
The buggy address belongs to the page:
page:ffffea00042f5500 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10bd54
flags: 0x4000000000000200(slab)
raw: 4000000000000200 ffffea00042e6980 0000001500000015 ffff888100043800
raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 1, ts 2806295920, free_ts 2802645800
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook mm/page_alloc.c:2456 [inline]
 prep_new_page+0x166/0x180 mm/page_alloc.c:2462
 get_page_from_freelist+0x2d8c/0x2f30 mm/page_alloc.c:4254
 __alloc_pages_nodemask+0x435/0xaf0 mm/page_alloc.c:5348
 allocate_slab mm/slub.c:1808 [inline]
 new_slab+0x80/0x400 mm/slub.c:1869
 new_slab_objects mm/slub.c:2627 [inline]
 ___slab_alloc+0x302/0x4b0 mm/slub.c:2791
 __slab_alloc+0x63/0xa0 mm/slub.c:2831
 slab_alloc_node mm/slub.c:2913 [inline]
 slab_alloc mm/slub.c:2955 [inline]
 __kmalloc+0x204/0x330 mm/slub.c:4029
 kmalloc include/linux/slab.h:557 [inline]
 kzalloc include/linux/slab.h:664 [inline]
 kobject_get_path+0xbc/0x1f0 lib/kobject.c:184
 kobject_uevent_env+0x27f/0x700 lib/kobject_uevent.c:544
 kobject_uevent+0x1f/0x30 lib/kobject_uevent.c:657
 rx_queue_add_kobject net/core/net-sysfs.c:1029 [inline]
 net_rx_queue_update_kobjects+0x1e3/0x430 net/core/net-sysfs.c:1069
 register_queue_kobjects net/core/net-sysfs.c:1750 [inline]
 netdev_register_kobject+0x231/0x320 net/core/net-sysfs.c:2001
 register_netdevice+0xe9b/0x13f0 net/core/dev.c:10036
 __ip_tunnel_create+0x2b0/0x370 net/ipv4/ip_tunnel.c:267
 ip_tunnel_init_net+0x28d/0x750 net/ipv4/ip_tunnel.c:1083
 ipip_init_net+0x29/0x30 net/ipv4/ipip.c:645
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:28 [inline]
 free_pages_prepare mm/page_alloc.c:1349 [inline]
 __free_pages_ok+0x82c/0x850 mm/page_alloc.c:1629
 free_the_page+0x76/0x370 mm/page_alloc.c:5409
 __free_pages+0x67/0xc0 mm/page_alloc.c:5418
 kfree+0x1f0/0x270 mm/slub.c:4188
 nf_conntrack_sane_init+0x3e0/0x3e5 net/netfilter/nf_conntrack_sane.c:210
 do_one_initcall+0x189/0x620 init/main.c:1197
 do_initcall_level+0x186/0x304 init/main.c:1270
 do_initcalls+0x4e/0x8e init/main.c:1286
 do_basic_setup+0x88/0x91 init/main.c:1306
 kernel_init_freeable+0x2be/0x3f5 init/main.c:1510
 kernel_init+0x11/0x280 init/main.c:1397
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298

Memory state around the buggy address:
 ffff88810bd54980: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc
 ffff88810bd54a00: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
>ffff88810bd54a80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
                      ^
 ffff88810bd54b00: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff88810bd54b80: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc
==================================================================
general protection fault, probably for non-canonical address 0xf53bfc1ea0000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0xa9e000f500000008-0xa9e000f50000000f]
CPU: 0 PID: 15 Comm: kworker/0:1 Tainted: G    B             5.10.226-syzkaller-00001-g6a01908517df #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events binder_deferred_func
RIP: 0010:__list_del_entry_valid+0x75/0x120 lib/list_debug.c:59
Code: 1e 48 85 db 74 68 4d 85 ff 74 74 48 ba 00 01 00 00 00 00 ad de 48 39 d3 74 76 48 83 c2 22 49 39 d7 74 7e 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 9c 9a 51 ff 49 8b 17 4c 39 f2 75
RSP: 0018:ffffc900000f7c20 EFLAGS: 00010a03
RAX: 153c001ea0000001 RBX: ffff88810bb82500 RCX: ffffffff8256ad19
RDX: dead000000000122 RSI: 0000000000000286 RDI: ffff88810bd54a80
RBP: ffffc900000f7c40 R08: ffffffff813e2a7b R09: 0000000000000003
R10: fffffbfff0e10e48 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff88810bd54a80 R14: ffff88810bd54a80 R15: a9e000f50000000f
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faba6edd0d0 CR3: 000000000660f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __list_del_entry include/linux/list.h:132 [inline]
 list_del_init include/linux/list.h:204 [inline]
 binder_dequeue_work_head_ilocked drivers/android/binder.c:515 [inline]
 binder_release_work+0xcd/0x680 drivers/android/binder.c:5126
 binder_deferred_release drivers/android/binder.c:6278 [inline]
 binder_deferred_func+0x1847/0x1bc0 drivers/android/binder.c:6313
 process_one_work+0x6dc/0xbd0 kernel/workqueue.c:2301
 worker_thread+0xaea/0x1510 kernel/workqueue.c:2447
 kthread+0x34b/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Modules linked in:
---[ end trace 58487097102712ea ]---
RIP: 0010:__list_del_entry_valid+0x75/0x120 lib/list_debug.c:59
Code: 1e 48 85 db 74 68 4d 85 ff 74 74 48 ba 00 01 00 00 00 00 ad de 48 39 d3 74 76 48 83 c2 22 49 39 d7 74 7e 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 9c 9a 51 ff 49 8b 17 4c 39 f2 75
RSP: 0018:ffffc900000f7c20 EFLAGS: 00010a03
RAX: 153c001ea0000001 RBX: ffff88810bb82500 RCX: ffffffff8256ad19
RDX: dead000000000122 RSI: 0000000000000286 RDI: ffff88810bd54a80
RBP: ffffc900000f7c40 R08: ffffffff813e2a7b R09: 0000000000000003
R10: fffffbfff0e10e48 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff88810bd54a80 R14: ffff88810bd54a80 R15: a9e000f50000000f
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faba6edd0d0 CR3: 000000000660f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	48 85 db             	test   %rbx,%rbx
   3:	74 68                	je     0x6d
   5:	4d 85 ff             	test   %r15,%r15
   8:	74 74                	je     0x7e
   a:	48 ba 00 01 00 00 00 	movabs $0xdead000000000100,%rdx
  11:	00 ad de
  14:	48 39 d3             	cmp    %rdx,%rbx
  17:	74 76                	je     0x8f
  19:	48 83 c2 22          	add    $0x22,%rdx
  1d:	49 39 d7             	cmp    %rdx,%r15
  20:	74 7e                	je     0xa0
  22:	4c 89 f8             	mov    %r15,%rax
  25:	48 c1 e8 03          	shr    $0x3,%rax
* 29:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	4c 89 ff             	mov    %r15,%rdi
  33:	e8 9c 9a 51 ff       	call   0xff519ad4
  38:	49 8b 17             	mov    (%r15),%rdx
  3b:	4c 39 f2             	cmp    %r14,%rdx
  3e:	75                   	.byte 0x75