------------[ cut here ]------------
WARNING: mm/slub.c:7144 at __kvmalloc_node_noprof+0x6e0/0x7fc mm/slub.c:-1, CPU#1: syz.8.1087/9910
Modules linked in:
CPU: 1 UID: 0 PID: 9910 Comm: syz.8.1087 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
pstate: 23400005 (nzCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : __kvmalloc_node_noprof+0x6e0/0x7fc mm/slub.c:-1
lr : __do_kmalloc_node mm/slub.c:-1 [inline]
lr : __kvmalloc_node_noprof+0x400/0x7fc mm/slub.c:7136
sp : ffff8000936a7930
x29: ffff8000936a7980 x28: 00000000ffffffff x27: 0000001000000000
x26: 0000000001000000 x25: 0000000000000000 x24: 00000000000028c0
x23: ffff800082708ee8 x22: ffff0000dd64a270 x21: 0000008000008088
x20: ffff7000126d4f58 x19: 0000000000000000 x18: 0000000000000000
x17: ffff800080165ba4 x16: ffff800080d53ac4 x15: ffff800082708c60
x14: 0000000000000001 x13: 0000000000000001 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000000003 x9 : ffff800089862b60
x8 : 0000000000000cc0 x7 : 0000000000000000 x6 : ffff800080bfa5d0
x5 : 00000000ffffffff x4 : 00000000000028c0 x3 : 0000010000000000
x2 : 0000008000008088 x1 : ffff0000f1ec1d80 x0 : 0000000000000001
Call trace:
 __kvmalloc_node_noprof+0x6e0/0x7fc mm/slub.c:-1 (P)
 init_udmabuf drivers/dma-buf/udmabuf.c:193 [inline]
 udmabuf_create+0x220/0xb34 drivers/dma-buf/udmabuf.c:386
 udmabuf_ioctl_create_list drivers/dma-buf/udmabuf.c:484 [inline]
 udmabuf_ioctl+0x24c/0x2b4 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+0x154/0x1cc fs/ioctl.c:583
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140
 el0_svc+0x60/0x1d8 arch/arm64/kernel/entry-common.c:797
 el0t_64_sync_handler+0x44/0x104 arch/arm64/kernel/entry-common.c:816
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:606
irq event stamp: 474
hardirqs last  enabled at (473): [<ffff80008697a404>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:210 [inline]
hardirqs last  enabled at (473): [<ffff80008697a404>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:221
hardirqs last disabled at (474): [<ffff800086954058>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:484
softirqs last  enabled at (452): [<ffff800080139b20>] local_bh_enable include/linux/bottom_half.h:33 [inline]
softirqs last  enabled at (452): [<ffff800080139b20>] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline]
softirqs last  enabled at (452): [<ffff800080139b20>] fpsimd_restore_current_state+0x39c/0x9c8 arch/arm64/kernel/fpsimd.c:1781
softirqs last disabled at (450): [<ffff8000801397c8>] local_bh_disable include/linux/bottom_half.h:20 [inline]
softirqs last disabled at (450): [<ffff8000801397c8>] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline]
softirqs last disabled at (450): [<ffff8000801397c8>] fpsimd_restore_current_state+0x44/0x9c8 arch/arm64/kernel/fpsimd.c:1774
---[ end trace 0000000000000000 ]---