------------[ cut here ]------------
[   22.538640] WARNING: mm/slub.c:5064 at __kvmalloc_node_noprof+0x520/0x630, CPU#1: unshare_test/521
[   22.540834] Modules linked in:
[   22.541868] CPU: 1 UID: 0 PID: 521 Comm: unshare_test Not tainted 6.16.0-rc3-next-20250626 #1 PREEMPT(voluntary) 
[   22.545177] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   22.545513] RIP: 0010:__kvmalloc_node_noprof+0x520/0x630
[   22.545743] Code: 45 c0 31 c0 4d 85 c0 0f 84 2c fc ff ff e9 a4 fc ff ff 45 89 ea e9 7d fb ff ff 31 d2 41 81 e5 00 20 00 00 0f 85 4d fd ff ff 90 <0f> 0b 90 e9 44 fd ff ff 65 8b 05 05 e9 11 02 48 0f a3 05 99 73 d0
[   22.547462] RSP: 0018:ffffa69140923d80 EFLAGS: 00010246
[   22.548522] RAX: 0000000000200001 RBX: 0000000040000300 RCX: 0000000000000015
[   22.549656] RDX: 0000000000000000 RSI: ffffffff94e38623 RDI: 00000000004428c0
[   22.550504] RBP: ffffa69140923de0 R08: 0000000000000000 R09: 0000000000000000
[   22.551598] R10: 00000000004028c0 R11: 0000000000000000 R12: 0000000200001e00
[   22.552676] R13: 0000000000000000 R14: ffff9191039f5ec0 R15: 00000000ffffffff
[   22.553703] FS:  00007fe2f772c740(0000) GS:ffff9191e4dbd000(0000) knlGS:0000000000000000
[   22.554859] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.555881] CR2: 00007fe2f77dcef0 CR3: 00000001062f8000 CR4: 00000000000006f0
[   22.557338] Call Trace:
[   22.558193]  <TASK>
[   22.558549]  ? __kmalloc_cache_noprof+0x398/0x3d0
[   22.559715]  ? alloc_fdtable+0x78/0x120
[   22.560380]  alloc_fdtable+0x78/0x120
[   22.561235]  ? preempt_count_sub+0x50/0x80
[   22.561643]  ? alloc_fdtable+0x78/0x120
[   22.562231]  expand_files+0x67/0x2e0
[   22.563223]  ? do_prlimit+0x134/0x210
[   22.563779]  ? trace_preempt_off+0x1e/0x70
[   22.564414]  ? ksys_dup3+0x61/0x100
[   22.565107]  ksys_dup3+0x6c/0x100
[   22.565513]  __x64_sys_dup2+0x32/0xc0
[   22.566142]  x64_sys_call+0x18a8/0x20c0
[   22.566828]  do_syscall_64+0xb2/0x2b0
[   22.567104]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   22.567326] RIP: 0033:0x7fe2f782e867
[   22.568761] Code: 73 01 c3 48 8b 0d 91 75 0e 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 21 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 61 75 0e 00 f7 d8 64 89 02 b8
[   22.570979] RSP: 002b:00007ffdeb7a3098 EFLAGS: 00000202 ORIG_RAX: 0000000000000021
[   22.571676] RAX: ffffffffffffffda RBX: 00007ffdeb7a38f8 RCX: 00007fe2f782e867
[   22.571844] RDX: 00007ffdeb7a30c0 RSI: 0000000040000038 RDI: 0000000000000002
[   22.571997] RBP: 00007ffdeb7a32c0 R08: 0000000000000000 R09: 0000000000000000
[   22.572148] R10: 0000000000000004 R11: 0000000000000202 R12: 0000000000000000
[   22.572297] R13: 00007ffdeb7a3908 R14: 00007fe2f796f000 R15: 000055f70d219dd8
[   22.574096]  </TASK>
[   22.574539] ---[ end trace 0000000000000000 ]---

<8>[   25.682443] <LAVA_SIGNAL_STARTTC core_unshare_test>
exit=1<8>[   25.693410] <LAVA_SIGNAL_ENDTC core_unshare_test>
core_unshare_test_global_unshare_EMFILE fail
core_unshare_test fail

<8>[   25.623321] <LAVA_SIGNAL_STARTTC core_unshare_test_global_unshare_EMFILE>
FAILED: 0 / 1 tests passed.
Totals: pass:0 fail:1 xfail:0 xpass:0 skip:0 error:0
<8>[   25.635148] <LAVA_SIGNAL_ENDTC core_unshare_test_global_unshare_EMFILE>
core_unshare_test_global_unshare_EMFILE fail