oss-sec mailing list archives
Re: CVE-2016-6327 | Linux kernel crash in infiniband subsystem.
From: Greg KH <greg () kroah com>
Date: Fri, 19 Aug 2016 09:31:54 +0200
On Fri, Aug 19, 2016 at 05:10:30PM +1000, Wade Mealing wrote:
System using the infiniband support module ib_srpt were vulnerable to a denial of service by system crash by a local attacker who is able to abort writes to a device using this initiator. There were multiple areas in which aborting a scsi command are able to be handled, moving this to the correct location in the state machine ensured that this condition was never triggered through this code path. The null pointer situation was enabled via a non attacker controlled meset() call, and this is not a use after free. From my undestanding it is a denial of service only. Thanks, Wade Mealing https://bugzilla.redhat.com/show_bug.cgi?id=1354525 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=51093254bf87
For those playing at home, this was fixed in the 4.6 Linux kernel release, as well as the 4.4.7 stable release (released on April 12, 2016), and all other stable releases around the same time, so the only ones to worry about this are those who have not updated their kernel in a long time. thanks, greg k-h
Current thread:
- CVE-2016-6327 | Linux kernel crash in infiniband subsystem. Wade Mealing (Aug 19)
- Re: CVE-2016-6327 | Linux kernel crash in infiniband subsystem. Greg KH (Aug 19)