Opened 9 years ago
#14537 new defect
Linux grsecurity guest kernel will not mount shared folders
| Reported by: | kballen | Owned by: | |
|---|---|---|---|
| Component: | shared folders | Version: | VirtualBox 5.0.2 |
| Keywords: | Cc: | ||
| Guest type: | Linux | Host type: | Windows |
Description
My guest is an Arch Linux 64-bit VM running kernel 4.1.6.201508230818-1-grsec (latest from official Arch repos as of this report). Since installing the grsecurity kernel, mount.vboxsf will fail with a Protocol error. The following is logged to dmesg when attempting a mount:
VbglR0HGCMInternalCall: vbglR0HGCMInternalPreprocessCall failed. rc=-5 VBOXGUEST_IOCTL_HGCM_CALL: 64 Failed. rc=-5. sf_read_super_aux err=-71 VbglR0HGCMInternalCall: vbglR0HGCMInternalPreprocessCall failed. rc=-5 VBOXGUEST_IOCTL_HGCM_CALL: 64 Failed. rc=-5. sf_read_super_aux err=-71 VbglR0HGCMInternalCall: vbglR0HGCMInternalPreprocessCall failed. rc=-5 VBOXGUEST_IOCTL_HGCM_CALL: 64 Failed. rc=-5. sf_read_super_aux err=-71
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