BUG: MAX_LOCKDEP_ENTRIES too low!
turning off the locking correctness validator.
CPU: 1 PID: 16356 Comm: syz-executor.0 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
 seqcount_lockdep_reader_access include/linux/seqlock.h:103 [inline]
 read_seqbegin include/linux/seqlock.h:840 [inline]
 zone_span_seqbegin include/linux/memory_hotplug.h:81 [inline]
 page_outside_zone_boundaries mm/page_alloc.c:568 [inline]
 bad_range+0x240/0x300 mm/page_alloc.c:597
 rmqueue mm/page_alloc.c:3529 [inline]
 get_page_from_freelist+0x1c4b/0x3fb0 mm/page_alloc.c:3948
 __alloc_pages_nodemask+0x2d6/0x730 mm/page_alloc.c:5001
 __alloc_pages include/linux/gfp.h:525 [inline]
 __alloc_pages_node include/linux/gfp.h:538 [inline]
 kmem_getpages mm/slab.c:1377 [inline]
 cache_grow_begin+0x75/0x460 mm/slab.c:2593
 fallback_alloc+0x1e4/0x2e0 mm/slab.c:3140
 __do_cache_alloc mm/slab.c:3283 [inline]
 slab_alloc mm/slab.c:3316 [inline]
 kmem_cache_alloc_trace+0x31d/0x440 mm/slab.c:3568
 kmalloc include/linux/slab.h:554 [inline]
 kzalloc include/linux/slab.h:684 [inline]
 alloc_tty_struct+0x95/0x920 drivers/tty/tty_io.c:3130
 pty_common_install+0x1ab/0xa70 drivers/tty/pty.c:398
 tty_driver_install_tty drivers/tty/tty_io.c:1324 [inline]
 tty_init_dev.part.0+0x9e/0x610 drivers/tty/tty_io.c:1438
 tty_init_dev+0x5b/0x80 drivers/tty/tty_io.c:1428
 ptmx_open drivers/tty/pty.c:846 [inline]
 ptmx_open+0x112/0x360 drivers/tty/pty.c:812
 chrdev_open+0x266/0x770 fs/char_dev.c:414
 do_dentry_open+0x4b9/0x11b0 fs/open.c:826
 do_open fs/namei.c:3367 [inline]
 path_openat+0x1c0e/0x27e0 fs/namei.c:3500
 do_filp_open+0x190/0x3d0 fs/namei.c:3527
 do_sys_openat2+0x16d/0x420 fs/open.c:1187
 do_sys_open fs/open.c:1203 [inline]
 __do_sys_openat fs/open.c:1219 [inline]
 __se_sys_openat fs/open.c:1214 [inline]
 __x64_sys_openat+0x13f/0x1f0 fs/open.c:1214
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665f9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007faa15062188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9
RDX: 0000000000000000 RSI: 0000000020000180 RDI: ffffffffffffff9c
RBP: 00000000004bfce1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffcba9ffe6f R14: 00007faa15062300 R15: 0000000000022000