BUG: MAX_LOCKDEP_ENTRIES too low!
turning off the locking correctness validator.
CPU: 0 PID: 14588 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
 __fs_reclaim_acquire mm/page_alloc.c:4332 [inline]
 fs_reclaim_acquire+0x117/0x150 mm/page_alloc.c:4346
 might_alloc include/linux/sched/mm.h:194 [inline]
 slab_pre_alloc_hook mm/slab.h:497 [inline]
 slab_alloc_node mm/slab.c:3221 [inline]
 kmem_cache_alloc_node+0x47/0x540 mm/slab.c:3594
 __alloc_skb+0x20b/0x340 net/core/skbuff.c:412
 alloc_skb include/linux/skbuff.h:1103 [inline]
 alloc_skb_with_frags+0x93/0x5d0 net/core/skbuff.c:5948
 sock_alloc_send_pskb+0x793/0x920 net/core/sock.c:2356
 __ip_append_data+0x1453/0x3260 net/ipv4/ip_output.c:1098
 ip_make_skb+0x226/0x2a0 net/ipv4/ip_output.c:1634
 udp_sendmsg+0x1c46/0x2730 net/ipv4/udp.c:1235
 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:821
 sock_sendmsg_nosec net/socket.c:654 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:674
 rxrpc_send_data_packet+0x172c/0x1e70 net/rxrpc/output.c:447
 rxrpc_queue_packet net/rxrpc/sendmsg.c:258 [inline]
 rxrpc_send_data+0x15f2/0x2bf0 net/rxrpc/sendmsg.c:437
 rxrpc_do_sendmsg+0xc03/0x1350 net/rxrpc/sendmsg.c:744
 rxrpc_sendmsg+0x420/0x630 net/rxrpc/af_rxrpc.c:560
 sock_sendmsg_nosec net/socket.c:654 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:674
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433
 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:00007f53c0484188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9
RDX: 0000000000000700 RSI: 0000000020000000 RDI: 0000000000000003
RBP: 00000000004bfce1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffc3e11f4df R14: 00007f53c0484300 R15: 0000000000022000