netlink: 'syz-executor7': attribute type 4 has an invalid length.
netlink: 'syz-executor7': attribute type 4 has an invalid length.
list_add corruption. next->prev should be prev (ffff88021fffab30), but was ffff88021fffab28. (next=ffffea000ac0c160).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:25!
invalid opcode: 0000 [#1] SMP PTI
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 6974 Comm: syz-executor1 Not tainted 4.17.0-rc3+ #88
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__list_add_valid+0x275/0x450 lib/list_debug.c:23
RSP: 0018:ffff88014979eb18 EFLAGS: 00010082
RAX: 0000000000000075 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88021fd36eec
RBP: ffff88014979eb80 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: ffffea000ac0c160
R13: ffff88021fffab28 R14: 0000000000000000 R15: ffffffff8b58b000
FS:  00007fe8775c0700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020aece40 CR3: 00000001511be000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __list_add include/linux/list.h:60 [inline]
 list_add include/linux/list.h:79 [inline]
 __free_one_page+0x1483/0x1800 mm/page_alloc.c:876
 free_pcppages_bulk+0x1039/0x12e0 mm/page_alloc.c:1160
 free_unref_page_commit+0x358/0x4d0 mm/page_alloc.c:2800
 free_unref_page mm/page_alloc.c:2816 [inline]
 __free_pages+0x1b9/0x240 mm/page_alloc.c:4440
 kmsan_free_page+0x1b6/0x2e0 mm/kmsan/kmsan.c:942
 free_pages_prepare mm/page_alloc.c:996 [inline]
 free_pcp_prepare mm/page_alloc.c:1060 [inline]
 free_unref_page_prepare+0x22f/0x620 mm/page_alloc.c:2763
 free_unref_page_list+0x27e/0x8b0 mm/page_alloc.c:2832
 release_pages+0x1657/0x1670 mm/swap.c:791
 __pagevec_release+0xf4/0x160 mm/swap.c:811
 pagevec_release include/linux/pagevec.h:86 [inline]
 truncate_inode_pages_range+0xebd/0x2810 mm/truncate.c:372
 truncate_inode_pages+0x6c/0x80 mm/truncate.c:478
 kill_bdev fs/block_dev.c:86 [inline]
 __blkdev_put+0x45e/0xc80 fs/block_dev.c:1784
 blkdev_put+0x435/0x570 fs/block_dev.c:1852
 blkdev_close+0xa6/0xf0 fs/block_dev.c:1859
 __fput+0x49e/0xa10 fs/file_table.c:209
 ____fput+0x37/0x40 fs/file_table.c:243
 task_work_run+0x243/0x2c0 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0x10e1/0x38d0 kernel/exit.c:867
 do_group_exit+0x1a0/0x360 kernel/exit.c:970
 get_signal+0x1320/0x1f20 kernel/signal.c:2469
 do_signal+0xb8/0x1c80 arch/x86/kernel/signal.c:810
 exit_to_usermode_loop arch/x86/entry/common.c:162 [inline]
 prepare_exit_to_usermode+0x271/0x3a0 arch/x86/entry/common.c:196
 syscall_return_slowpath+0xe9/0x700 arch/x86/entry/common.c:265
 do_syscall_64+0x1a6/0x220 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x455979
RSP: 002b:00007fe8775bfc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: 0000000000200000 RBX: 00007fe8775c06d4 RCX: 0000000000455979
RDX: 00000000fffffc5d RSI: 0000000020000180 RDI: 0000000000000018
RBP: 000000000072bf50 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000000000000071f R14: 00000000006feb88 R15: 0000000000000001
Code: 87 80 0c 00 00 00 00 00 00 41 c7 87 20 03 00 00 00 00 00 00 48 c7 c7 d4 75 a5 8a 31 c0 48 89 d6 4c 89 ea 4c 89 e1 e8 bb b7 42 fd <0f> 0b 66 0f 1f 84 00 00 00 00 00 eb fe 48 8b 7d c8 e8 85 d1 bf 
RIP: __list_add_valid+0x275/0x450 lib/list_debug.c:23 RSP: ffff88014979eb18
---[ end trace 5378e92bdd53c346 ]---