------------[ cut here ]------------
WARNING: CPU: 1 PID: 4487 at mm/page_alloc.c:5634 __alloc_pages+0xd0/0x544 mm/page_alloc.c:5634
Modules linked in:
CPU: 1 PID: 4487 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/31/2026
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : __alloc_pages+0xd0/0x544 mm/page_alloc.c:5634
lr : __alloc_pages+0xac/0x544 mm/page_alloc.c:5628
sp : ffff800021f07580
x29: ffff800021f07650 x28: dfff800000000000 x27: ffff0000d1e18018
x26: ffff800021f075a0 x25: dfff800000000000 x24: ffff7000043e0eb4
x23: 0000000000000007 x22: 0000000000000000 x21: 0000000000040dc0
x20: 0000000000000000 x19: 000000000000000b x18: 0000000000000000
x17: 0000000000001000 x16: ffff8000082f591c x15: 000000000004ffff
x14: 0000000000000005 x13: 1ffff000043e0eb8 x12: 0000000000000000
x11: 0000000000000000 x10: ffff7000043e0ebd x9 : 0000000000000001
x8 : ffff800018db3000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff800019707d90 x4 : 0000000000000000 x3 : 0000000000000020
x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 __alloc_pages+0xd0/0x544 mm/page_alloc.c:5634
 __alloc_pages_node include/linux/gfp.h:237 [inline]
 alloc_pages_node include/linux/gfp.h:260 [inline]
 __kmalloc_large_node+0x9c/0x1dc mm/slab_common.c:1077
 __do_kmalloc_node mm/slab_common.c:924 [inline]
 __kmalloc+0x12c/0x180 mm/slab_common.c:949
 kmalloc include/linux/slab.h:568 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 linear_conf+0x54/0x4e0 drivers/md/md-linear.c:68
 linear_run+0x80/0x13c drivers/md/md-linear.c:142
 md_run+0xe14/0x1de0 drivers/md/md.c:6028
 do_md_run+0x4c/0x4a4 drivers/md/md.c:6160
 md_ioctl+0x1ffc/0x25cc drivers/md/md.c:7823
 blkdev_ioctl+0x654/0xb74 block/ioctl.c:626
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x12c arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589
irq event stamp: 2646
hardirqs last  enabled at (2645): [<ffff800011c88aec>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (2645): [<ffff800011c88aec>] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194
hardirqs last disabled at (2646): [<ffff800011b9d7f8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (2512): [<ffff800008031244>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (2510): [<ffff800008031210>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---
md: pers->run() failed ...