Date: Tue, 7 Nov 2017 21:22:37 +0100 From: Greg KH <greg@...ah.com> To: oss-security@...ts.openwall.com Subject: Re: CVE-2017-15102: Linux kernel: usb: NULL-deref due to a race condition in [legousbtower] driver On Tue, Nov 07, 2017 at 03:14:56PM -0500, Vladis Dronov wrote: > Heololo, > > A race condition exists in Linux kernel since year 2003 through version 4.9-rc1 > in [legousbtower] driver which allows a null pointer dereference caused by > not removing a device file interface on an error when the probe function is called. > This can cause a write-what-where condition by remapping dev->interrupt_out_buffer > in tower_write(), leading to privilege escalation. > > References: > > https://bugzilla.redhat.com/show_bug.cgi?id=1505905 > > An upstream patch: > > https://github.com/torvalds/linux/commit/2fae9e5a7babada041e2e161699ade2447a01989 I hate to ask, but why are you getting CVEs for bugs fixed over a year ago, and are already in all stable kernel releases a year ago? Why does it matter? Unless you happen to have a product that doesn't ever do kernel updates from the stable trees, and well, then you know what you are doing and don't need CVEs assigned either, right? :) thanks, greg k-h
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