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BUG: KMSAN: uninit-value in drm_mode_setcrtc+0x1ad3/0x24a0 drivers/gpu/drm/drm_crtc.c:896
 drm_mode_setcrtc+0x1ad3/0x24a0 drivers/gpu/drm/drm_crtc.c:896
 drm_ioctl_kernel+0x5ae/0x730 drivers/gpu/drm/drm_ioctl.c:789
 drm_ioctl+0xd12/0x1590 drivers/gpu/drm/drm_ioctl.c:892
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0x225/0x410 fs/ioctl.c:857
 __x64_sys_ioctl+0x96/0xe0 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Uninit was created at:
 slab_post_alloc_hook+0x12f/0xb70 mm/slab.h:767
 slab_alloc_node mm/slub.c:3478 [inline]
 __kmem_cache_alloc_node+0x536/0x8d0 mm/slub.c:3517
 __do_kmalloc_node mm/slab_common.c:1022 [inline]
 __kmalloc+0x121/0x3c0 mm/slab_common.c:1036
 kmalloc_array include/linux/slab.h:636 [inline]
 drm_mode_setcrtc+0x1dba/0x24a0 drivers/gpu/drm/drm_crtc.c:846
 drm_ioctl_kernel+0x5ae/0x730 drivers/gpu/drm/drm_ioctl.c:789
 drm_ioctl+0xd12/0x1590 drivers/gpu/drm/drm_ioctl.c:892
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0x225/0x410 fs/ioctl.c:857
 __x64_sys_ioctl+0x96/0xe0 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

CPU: 1 PID: 25778 Comm: syz-executor.1 Not tainted 6.6.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
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