All, This shouldn't happen, but the linux-6.4.11 to linux-6.4.12 broke the dkms build of virtualbox 6.1.46 modules. Specifically from the log: DKMS make.log for vboxhost-6.1.46_non_OSE for kernel 6.4.12-arch1-1 (x86_64) Fri Aug 25 05:35:45 PM CDT 2023 CC [M] /var/lib/dkms/vboxhost/6.1.46_non_OSE/build/vboxnetflt/linux/VBoxNetFlt-linux.o CC [M] /var/lib/dkms/vboxhost/6.1.46_non_OSE/build/vboxdrv/linux/SUPDrv-linux.o /var/lib/dkms/vboxhost/6.1.46_non_OSE/build/vboxnetflt/linux/VBoxNetFlt-linux.c: In function ‘vboxNetFltLinuxForwardToIntNetInner’: /var/lib/dkms/vboxhost/6.1.46_non_OSE/build/vboxnetflt/linux/VBoxNetFlt-linux.c:1561:40: error: implicit declaration of function ‘skb_gso_segment’; did you mean ‘skb_gso_reset’? [-Werror=implicit-function-declaration] 1561 | struct sk_buff *pSegment = skb_gso_segment(pBuf, 0 /*supported features*/); | ^~~~~~~~~~~~~~~ | skb_gso_reset /var/lib/dkms/vboxhost/6.1.46_non_OSE/build/vboxnetflt/linux/VBoxNetFlt-linux.c:1561:40: warning: initialization of ‘struct sk_buff *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion] cc1: some warnings being treated as errors make[2]: *** [scripts/Makefile.build:252: /var/lib/dkms/vboxhost/6.1.46_non_OSE/build/vboxnetflt/linux/VBoxNetFlt-linux.o] Error 1 make[1]: *** [scripts/Makefile.build:497: /var/lib/dkms/vboxhost/6.1.46_non_OSE/build/vboxnetflt] Error 2 make[1]: *** Waiting for unfinished jobs.... CC [M] /var/lib/dkms/vboxhost/6.1.46_non_OSE/build/vboxdrv/SUPDrv.o CC [M] /var/lib/dkms/vboxhost/6.1.46_non_OSE/build/vboxdrv/SUPDrvGip.o In file included from ./include/linux/string.h:254, from /var/lib/dkms/vboxhost/6.1.46_non_OSE/build/vboxdrv/include/iprt/string.h:39, from /var/lib/dkms/vboxhost/6.1.46_non_OSE/build/vboxdrv/SUPDrvInternal.h:46, from /var/lib/dkms/vboxhost/6.1.46_non_OSE/build/vboxdrv/SUPDrv.c:33: In function ‘fortify_memcpy_chk’, inlined from ‘supdrvIOCtlInnerUnrestricted’ at /var/lib/dkms/vboxhost/6.1.46_non_OSE/build/vboxdrv/SUPDrv.c:1746:13, inlined from ‘supdrvIOCtl’ at /var/lib/dkms/vboxhost/6.1.46_non_OSE/build/vboxdrv/SUPDrv.c:2698:14: ./include/linux/fortify-string.h:520:25: warning: call to ‘__write_overflow_field’ declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Wattribute-warning] 520 | __write_overflow_field(p_size_field, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Should I open a bug with Arch? -- David C. Rankin, J.D.,P.E.