kernel BUG in assoc_array

Kernel	Title	Count	Last	Reported	Patched	Status
upstream	kernel BUG in assoc_array_insert (3) keyrings lsm	1	325d	321d	0/26	auto-obsoleted due to no activity on 2023/09/20 05:09
upstream	kernel BUG in assoc_array_insert (2) keyrings lsm	2	1009d	1008d	0/26	auto-closed as invalid on 2021/11/25 12:38
upstream	kernel BUG at lib/assoc_array.c:LINE! keyrings lsm	1	1550d	1549d	0/26	auto-closed as invalid on 2020/06/02 12:38
upstream	kernel BUG at lib/assoc_array.c:LINE! (2) keyrings lsm	2	1318d	1326d	0/26	auto-closed as invalid on 2021/01/20 08:28

------------[ cut here ]------------ kernel BUG at lib/assoc_array.c:652! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 2993 Comm: kworker/0:2 Not tainted 5.11.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: afs afs_manage_cell_work RIP: 0010:assoc_array_insert_into_terminal_node lib/assoc_array.c:652 [inline] RIP: 0010:assoc_array_insert+0x1e53/0x2e70 lib/assoc_array.c:1001 Code: 0f 84 c4 fe ff ff e8 1c d5 f1 fd e9 ba fe ff ff e8 02 3b af fd 0f 0b e8 fb 3a af fd 0f 0b e8 f4 3a af fd 0f 0b e8 ed 3a af fd <0f> 0b 48 8b 04 24 4c 89 7c 24 50 48 b9 00 00 00 00 00 fc ff df 41 RSP: 0018:ffffc900017077a8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000000 RDX: ffff88801b528040 RSI: ffffffff83c398a3 RDI: ffff88801ae4c250 RBP: ffff88801e9de690 R08: 0000000000000010 R09: 0000000000000000 R10: ffffffff83c39135 R11: 0000000000000000 R12: ffff88801ae4c290 R13: 000000000000000f R14: ffff888023d3a700 R15: ffff88801f7ee000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f54c3fb7000 CR3: 000000006811c000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __key_link_begin+0xec/0x250 security/keys/keyring.c:1314 construct_alloc_key security/keys/request_key.c:404 [inline] construct_key_and_link security/keys/request_key.c:499 [inline] request_key_and_link+0x7ac/0x1270 security/keys/request_key.c:637 request_key_tag+0x4e/0xb0 security/keys/request_key.c:701 dns_query+0x257/0x6d0 net/dns_resolver/dns_query.c:128 afs_dns_query+0x122/0x390 fs/afs/addr_list.c:249 afs_update_cell fs/afs/cell.c:402 [inline] afs_manage_cell fs/afs/cell.c:784 [inline] afs_manage_cell_work+0xa05/0x11f0 fs/afs/cell.c:840 process_one_work+0x98d/0x15f0 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Modules linked in: ---[ end trace 00cff402f5b0a0cc ]--- RIP: 0010:assoc_array_insert_into_terminal_node lib/assoc_array.c:652 [inline] RIP: 0010:assoc_array_insert+0x1e53/0x2e70 lib/assoc_array.c:1001 Code: 0f 84 c4 fe ff ff e8 1c d5 f1 fd e9 ba fe ff ff e8 02 3b af fd 0f 0b e8 fb 3a af fd 0f 0b e8 f4 3a af fd 0f 0b e8 ed 3a af fd <0f> 0b 48 8b 04 24 4c 89 7c 24 50 48 b9 00 00 00 00 00 fc ff df 41 RSP: 0018:ffffc900017077a8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000000 RDX: ffff88801b528040 RSI: ffffffff83c398a3 RDI: ffff88801ae4c250 RBP: ffff88801e9de690 R08: 0000000000000010 R09: 0000000000000000 R10: ffffffff83c39135 R11: 0000000000000000 R12: ffff88801ae4c290 R13: 000000000000000f R14: ffff888023d3a700 R15: ffff88801f7ee000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f986500ff20 CR3: 0000000036126000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400