Subject: + cciss-fix-info-leak-in-cciss_ioctl32_passthru.patch added to -mm tree To: dan.carpenter@xxxxxxxxxx,mike.miller@xxxxxx From: akpm@xxxxxxxxxxxxxxxxxxxx Date: Fri, 20 Sep 2013 13:33:46 -0700 The patch titled Subject: cciss: fix info leak in cciss_ioctl32_passthru() has been added to the -mm tree. Its filename is cciss-fix-info-leak-in-cciss_ioctl32_passthru.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/cciss-fix-info-leak-in-cciss_ioctl32_passthru.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/cciss-fix-info-leak-in-cciss_ioctl32_passthru.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Dan Carpenter <dan.carpenter@xxxxxxxxxx> Subject: cciss: fix info leak in cciss_ioctl32_passthru() The arg64 struct has a hole after ->buf_size which isn't cleared. Or if any of the calls to copy_from_user() fail then that would cause an information leak as well. This was assigned CVE-2013-2147. Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> Acked-by: Mike Miller <mike.miller@xxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/block/cciss.c | 1 + 1 file changed, 1 insertion(+) diff -puN drivers/block/cciss.c~cciss-fix-info-leak-in-cciss_ioctl32_passthru drivers/block/cciss.c --- a/drivers/block/cciss.c~cciss-fix-info-leak-in-cciss_ioctl32_passthru +++ a/drivers/block/cciss.c @@ -1189,6 +1189,7 @@ static int cciss_ioctl32_passthru(struct int err; u32 cp; + memset(&arg64, 0, sizeof(arg64)); err = 0; err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info, _ Patches currently in -mm which might be from dan.carpenter@xxxxxxxxxx are origin.patch cpqarray-fix-info-leak-in-ida_locked_ioctl.patch cciss-fix-info-leak-in-cciss_ioctl32_passthru.patch linux-next.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html