------------[ cut here ]------------
WARNING: CPU: 1 PID: 10133 at mm/page_alloc.c:5124 __alloc_frozen_pages_noprof+0x2c8/0x370 mm/page_alloc.c:5124
Modules linked in:
CPU: 1 UID: 0 PID: 10133 Comm: syz.6.888 Not tainted 6.16.0-syzkaller-11895-gcca7a0aae895 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__alloc_frozen_pages_noprof+0x2c8/0x370 mm/page_alloc.c:5124
Code: 74 10 4c 89 e7 89 54 24 0c e8 f4 1c 0d 00 8b 54 24 0c 49 83 3c 24 00 0f 85 a5 fe ff ff e9 a6 fe ff ff c6 05 ef 33 77 0d 01 90 <0f> 0b 90 e9 18 ff ff ff a9 00 00 08 00 48 8b 4c 24 10 4c 8d 44 24
RSP: 0018:ffffc9001c876e40 EFLAGS: 00010246
RAX: ffffc9001c876e00 RBX: 0000000000000017 RCX: 0000000000000000
RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc9001c876ea8
RBP: ffffc9001c876f30 R08: ffffc9001c876ea7 R09: ffffc9001c876e80
R10: dffffc0000000000 R11: fffff5200390edd5 R12: 0000000000000000
R13: 1ffff9200390edcc R14: 0000000000040920 R15: dffffc0000000000
FS:  00007f2dac1ea6c0(0000) GS:ffff888125d24000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30512ff8 CR3: 000000005678d000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2416
 ___kmalloc_large_node+0x5f/0x1b0 mm/slub.c:4306
 __kmalloc_large_node_noprof+0x18/0x90 mm/slub.c:4337
 __do_kmalloc_node mm/slub.c:4353 [inline]
 __kmalloc_noprof+0x36f/0x4f0 mm/slub.c:4377
 kmalloc_noprof include/linux/slab.h:909 [inline]
 kmalloc_array_noprof include/linux/slab.h:948 [inline]
 nsim_fib6_event_init drivers/net/netdevsim/fib.c:810 [inline]
 nsim_fib6_prepare_event drivers/net/netdevsim/fib.c:947 [inline]
 nsim_fib_event_schedule_work drivers/net/netdevsim/fib.c:1003 [inline]
 nsim_fib_event_nb+0x295/0x1080 drivers/net/netdevsim/fib.c:1043
 notifier_call_chain+0x1b6/0x3e0 kernel/notifier.c:85
 atomic_notifier_call_chain+0xda/0x180 kernel/notifier.c:223
 call_fib_notifiers+0x31/0x60 net/core/fib_notifier.c:35
 fib6_del_route net/ipv6/ip6_fib.c:-1 [inline]
 fib6_del+0x104d/0x1550 net/ipv6/ip6_fib.c:2087
 fib6_clean_node+0x29f/0x590 net/ipv6/ip6_fib.c:2249
 fib6_walk_continue+0x67b/0x910 net/ipv6/ip6_fib.c:2171
 fib6_walk+0x149/0x290 net/ipv6/ip6_fib.c:2219
 fib6_clean_tree net/ipv6/ip6_fib.c:2299 [inline]
 __fib6_clean_all+0x234/0x380 net/ipv6/ip6_fib.c:2315
 rt6_sync_down_dev net/ipv6/route.c:5005 [inline]
 rt6_disable_ip+0x120/0x720 net/ipv6/route.c:5010
 addrconf_ifdown+0x15d/0x1880 net/ipv6/addrconf.c:3853
 addrconf_notify+0x1bc/0x1010 net/ipv6/addrconf.c:-1
 notifier_call_chain+0x1b6/0x3e0 kernel/notifier.c:85
 call_netdevice_notifiers_mtu net/core/dev.c:2304 [inline]
 netif_set_mtu_ext+0x594/0x7d0 net/core/dev.c:9677
 netif_set_mtu+0xa4/0x150 net/core/dev.c:9698
 dev_set_mtu+0x126/0x260 net/core/dev_api.c:248
 dev_ioctl+0x7b4/0x1150 net/core/dev_ioctl.c:824
 sock_do_ioctl+0x22c/0x300 net/socket.c:1252
 sock_ioctl+0x576/0x790 net/socket.c:1359
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:598 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:584
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2dab38ebe9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2dac1ea038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f2dab5b6180 RCX: 00007f2dab38ebe9
RDX: 0000200000000440 RSI: 0000000000008922 RDI: 000000000000000b
RBP: 00007f2dab411e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2dab5b6218 R14: 00007f2dab5b6180 R15: 00007ffe5a6667c8
 </TASK>