------------[ cut here ]------------
WARNING: mm/slub.c:7013 at __kvmalloc_node_noprof+0x4e0/0x65c mm/slub.c:7013, CPU#1: syz.7.12077/15628
Modules linked in:
CPU: 1 UID: 0 PID: 15628 Comm: syz.7.12077 Tainted: G        W    L      syzkaller #0 PREEMPT 
Tainted: [W]=WARN, [L]=SOFTLOCKUP
Hardware name: linux,dummy-virt (DT)
pstate: 21402009 (nzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
pc : __kvmalloc_node_noprof+0x4e0/0x65c mm/slub.c:7013
lr : __kmalloc_large_node_noprof mm/slub.c:5385 [inline]
lr : __do_kmalloc_node mm/slub.c:5402 [inline]
lr : __kvmalloc_node_noprof+0x4cc/0x65c mm/slub.c:7005
sp : ffff8000841a3be0
x29: ffff8000841a3c40 x28: f4f000001f181100 x27: 0000000000000000
x26: f2f000001fad36c0 x25: 00000000000028c0 x24: eaaf800080bdca5c
x23: 00000080000000b0 x22: 00000000ffffffff x21: f2f0000006761700
x20: 0000000000000cc0 x19: 00000080000000b0 x18: 00000000ffffffff
x17: 0000000000000000 x16: 0000000000000000 x15: 0000000020001648
x14: ffff8000841a3a20 x13: ffff8000841a3d28 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000000000000030 x7 : 0000000000000000 x6 : 0000000000000000
x5 : f4f000001f181100 x4 : 0000000000000000 x3 : 0000000000000000
x2 : 00000000000428c0 x1 : 000000007fffffff x0 : 0000000000000000
Call trace:
 __kvmalloc_node_noprof+0x4e0/0x65c mm/slub.c:7013 (P)
 init_udmabuf drivers/dma-buf/udmabuf.c:193 [inline]
 udmabuf_create+0x13c/0x480 drivers/dma-buf/udmabuf.c:386
 udmabuf_ioctl_create_list drivers/dma-buf/udmabuf.c:484 [inline]
 udmabuf_ioctl+0x138/0x180 drivers/dma-buf/udmabuf.c:499
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __arm64_sys_ioctl+0xa8/0x100 fs/ioctl.c:583
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x54/0x10c arch/arm64/kernel/syscall.c:49
 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x1c/0x34 arch/arm64/kernel/syscall.c:140
 el0_svc+0x38/0x1fc arch/arm64/kernel/entry-common.c:758
 el0t_64_sync_handler+0xa0/0xe4 arch/arm64/kernel/entry-common.c:777
 el0t_64_sync+0x1a4/0x1a8 arch/arm64/kernel/entry.S:590
---[ end trace 0000000000000000 ]---