EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
BUG: MAX_LOCKDEP_ENTRIES too low!
turning off the locking correctness validator.
CPU: 1 PID: 24008 Comm: syz-executor.1 Not tainted 5.12.0-rc8-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x141/0x1d7 lib/dump_stack.c:120
 alloc_list_entry kernel/locking/lockdep.c:1353 [inline]
 add_lock_to_list.constprop.0.cold+0x11/0x18 kernel/locking/lockdep.c:1374
 check_prev_add kernel/locking/lockdep.c:3007 [inline]
 check_prevs_add kernel/locking/lockdep.c:3060 [inline]
 validate_chain kernel/locking/lockdep.c:3675 [inline]
 __lock_acquire+0x2f37/0x54c0 kernel/locking/lockdep.c:4901
 lock_acquire kernel/locking/lockdep.c:5511 [inline]
 lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline]
 _raw_spin_lock_irq+0x32/0x50 kernel/locking/spinlock.c:167
 spin_lock_irq include/linux/spinlock.h:379 [inline]
 __add_to_page_cache_locked+0x5a7/0x1110 mm/filemap.c:861
 add_to_page_cache_lru+0x176/0x5b0 mm/filemap.c:940
 pagecache_get_page+0x49c/0x18d0 mm/filemap.c:1808
 find_or_create_page include/linux/pagemap.h:405 [inline]
 grow_dev_page fs/buffer.c:974 [inline]
 grow_buffers fs/buffer.c:1043 [inline]
 __getblk_slow+0x24e/0xb00 fs/buffer.c:1070
 __getblk_gfp+0x70/0x80 fs/buffer.c:1354
 sb_getblk include/linux/buffer_head.h:325 [inline]
 ext4_getblk+0x1cf/0x680 fs/ext4/inode.c:855
 ext4_bread+0x29/0x210 fs/ext4/inode.c:900
 ext4_quota_write+0x26b/0x680 fs/ext4/super.c:6569
 write_blk+0x12e/0x220 fs/quota/quota_tree.c:73
 get_free_dqblk+0xff/0x2d0 fs/quota/quota_tree.c:102
 do_insert_tree+0x79c/0x1180 fs/quota/quota_tree.c:309
 do_insert_tree+0xf77/0x1180 fs/quota/quota_tree.c:340
 dq_insert_tree fs/quota/quota_tree.c:366 [inline]
 qtree_write_dquot+0x3b7/0x580 fs/quota/quota_tree.c:385
 v2_write_dquot+0x11c/0x250 fs/quota/quota_v2.c:358
 dquot_acquire+0x2c5/0x590 fs/quota/dquot.c:443
 ext4_acquire_dquot+0x254/0x3b0 fs/ext4/super.c:6228
 dqget+0x678/0x1080 fs/quota/dquot.c:901
 __dquot_initialize+0x560/0xbe0 fs/quota/dquot.c:1479
 ext4_xattr_set+0xbd/0x340 fs/ext4/xattr.c:2481
 __vfs_setxattr+0x115/0x180 fs/xattr.c:180
 __vfs_setxattr_noperm+0x125/0x4c0 fs/xattr.c:214
 __vfs_setxattr_locked+0x1cf/0x260 fs/xattr.c:274
 vfs_setxattr+0x13f/0x330 fs/xattr.c:300
 setxattr+0x218/0x2b0 fs/xattr.c:573
 path_setxattr+0x197/0x1c0 fs/xattr.c:593
 __do_sys_setxattr fs/xattr.c:609 [inline]
 __se_sys_setxattr fs/xattr.c:605 [inline]
 __ia32_sys_setxattr+0xbc/0x150 fs/xattr.c:605
 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline]
 __do_fast_syscall_32+0x56/0x90 arch/x86/entry/common.c:140
 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:165
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fe0549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f55da5fc EFLAGS: 00000296 ORIG_RAX: 00000000000000e2
RAX: ffffffffffffffda RBX: 0000000020001180 RCX: 00000000200011c0
RDX: 00000000200013c0 RSI: 00000000000000d8 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000