On Thu, May 23, 2013 at 03:58:19PM +0200, Paolo Bonzini wrote: > The SG_IO ioctl's command whitelist is designed for MMC devices (roughly, > "play/burn CDs without requiring root") but some opcodes overlap across SCSI > device classes and have different meanings for different classes. > > To fix this, use different bitmaps for the various device classes. > This is CVE-2012-4542. >
Sorry for bringing this old issue again, but I was wondering what happen to this fix. Cheers, -- Luís > v2->v3: patches are now split differently, according to Tejun's indications; > added conflict on operation code A4h. > > Paolo Bonzini (4): > sg_io: pass request_queue to blk_verify_command > sg_io: prepare to introduce per-class command filters > sg_io: use different default filters for each device class > sg_io: resolve conflicts between commands assigned to multiple classes > (CVE-2012-4542) > > block/bsg.c | 2 +- > block/scsi_ioctl.c | 193 > +++++++++++++++++++++++++++-------------------- > drivers/scsi/scsi_scan.c | 2 + > drivers/scsi/sg.c | 3 +- > include/linux/blkdev.h | 5 +- > 5 files changed, 118 insertions(+), 87 deletions(-) > > -- > 1.8.1.4 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
