Date: Thu, 24 Jan 2019 10:30:28 +0100 From: Yves-Alexis Perez <corsac@...ian.org> To: oss-security@...ts.openwall.com Subject: Re: Linux Kernel: Missing access_ok() checks in IOCTL function (gpu/drm/i915 Driver) -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On Wed, 2019-01-23 at 14:28 -0600, Timothy Michaud wrote: > NOTE: I have requested a CVE identifier, and I'm sending this message, to > make tracking of the fix easier; however, to avoid missing security fixes > without CVE identifiers, you should *NOT* be cherry-picking a specific > patch in response to a notification about a kernel security bug. > > Due to a lack of "access_ok()" checks in i915_gem_execbuffer2_ioctl, it > is possible to escalate privileges similar to the waitid vulnerability Hi, thanks for the report. The patch doesn't seem CC: stable, could you give us a status on the various stable releases? Regards, - -- Yves-Alexis -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEE8vi34Qgfo83x35gF3rYcyPpXRFsFAlxJhbQACgkQ3rYcyPpX RFsNSwf/WQH9UPK9YIFBdu47hZUKOr2tRkFosjnyEecG8HsBxI1191fXsZcGgeJk YVzL+oWvlvQcTajPnbBLPU6qey9ZFz8AdNkXGSKXnejaPpn9LvkJntT086s6lX1i dWSgDbhAX0PT2UO1I1k4GJ5KA8SxEIzPnqq2moB8WjcIIWuqFEFJIjYkL36Wovhp /rKIBZGMX25zxKHzCckGYcski/KKFpgqbqbyQ2jLydht3nHczlhGP/lTa/DVr8IN YH//6ayr0Kml/G9X8ZIV1ciu+UKQGFAVwrXNAmugNmy6tZwRVDezvP2+JfWZNAG/ bjhyac/xqmS/VquQjKKgyTQPoPBUkg== =Xt1Y -----END PGP SIGNATURE-----
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