Bug#1125924: virtualbox-dkms: module fails to build for Linux 6.19: ERROR: modpost: module vboxdrv uses symbol cr4_update_irqsoff from namespace module:kvm,kvm-amd,kvm-intel, but does not import it.

[Andreas Beckmann]

Package: virtualbox-dkms
Version: 7.2.4-dfsg-3
Severity: important
Tags: upstream

Hi,

virtualbox-dkms fails to build a module for Linux 6.19 in experimental:

DKMS (dkms-3.2.2) make.log for virtualbox/7.2.4 for kernel 6.19-amd64 (x86_64)
Fri Jan 16 09:27:28 UTC 2026

Building module(s)
# command: make -j14 KERNELRELEASE=6.19-amd64 -C /lib/modules/6.19-amd64/build 
M=/var/lib/dkms/virtualbox/7.2.4/build
make: Entering directory '/usr/src/linux-headers-6.19-amd64'
make[1]: Entering directory '/var/lib/dkms/virtualbox/7.2.4/build'
  CC [M]  vboxdrv/linux/SUPDrv-linux.o
  CC [M]  vboxdrv/SUPDrv.o
  CC [M]  vboxdrv/SUPDrvGip.o
  CC [M]  vboxdrv/SUPDrvSem.o
  CC [M]  vboxdrv/SUPDrvTracer.o
  CC [M]  vboxdrv/SUPLibAll.o
  CC [M]  vboxdrv/common/string/strformatrt.o
  CC [M]  vboxdrv/combined-agnostic1.o
  CC [M]  vboxdrv/combined-agnostic2.o
  CC [M]  vboxdrv/combined-os-specific.o
  LD [M]  vboxdrv/vboxdrv.o
vboxdrv/vboxdrv.o: warning: objtool: supdrvTracerCommonDeregisterImpl+0x3d: 
relocation to !ENDBR: supdrvTracerProbeFireStub+0x0
vboxdrv/vboxdrv.o: warning: objtool: .export_symbol+0x4f8: data relocation to 
!ENDBR: SUPR0TracerFireProbe+0x0
vboxdrv/vboxdrv.o: warning: objtool: g_aFunctions+0xe30: data relocation to 
!ENDBR: SUPR0TracerFireProbe+0x0
vboxdrv/vboxdrv.o: warning: objtool: g_pfnSupdrvProbeFireKernel+0x0: data 
relocation to !ENDBR: supdrvTracerProbeFireStub+0x0
  CC [M]  vboxnetflt/linux/VBoxNetFlt-linux.o
  CC [M]  vboxnetflt/VBoxNetFlt.o
  CC [M]  vboxnetflt/SUPR0IdcClient.o
  CC [M]  vboxnetflt/SUPR0IdcClientComponent.o
  CC [M]  vboxnetflt/linux/SUPR0IdcClient-linux.o
  LD [M]  vboxnetflt/vboxnetflt.o
  CC [M]  vboxnetadp/linux/VBoxNetAdp-linux.o
  CC [M]  vboxnetadp/VBoxNetAdp.o
  LD [M]  vboxnetadp/vboxnetadp.o
  MODPOST Module.symvers
ERROR: modpost: module vboxdrv uses symbol cr4_update_irqsoff from namespace 
module:kvm,kvm-amd,kvm-intel, but does not import it.
ERROR: modpost: module vboxdrv uses symbol cr4_read_shadow from namespace 
module:kvm,kvm-amd,kvm-intel, but does not import it.
make[3]: *** [/usr/src/linux-headers-6.19-common/scripts/Makefile.modpost:147: 
Module.symvers] Error 1
make[2]: *** [/usr/src/linux-headers-6.19-common/Makefile:2028: modpost] Error 2
make[1]: *** [/usr/src/linux-headers-6.19-common/Makefile:260: __sub-make] 
Error 2
make[1]: Leaving directory '/var/lib/dkms/virtualbox/7.2.4/build'
make: *** [/usr/src/linux-headers-6.19-common/Makefile:260: __sub-make] Error 2
make: Leaving directory '/usr/src/linux-headers-6.19-amd64'

# exit code: 2
# elapsed time: 00:00:14
----------------------------------------------------------------


Andreas