Description
Race condition in the ion_ioctl function in drivers/staging/android/ion/ion.c in the Linux kernel before 4.6 allows local users to gain privileges or cause a denial of service (use-after-free) by calling ION_IOC_FREE on two CPUs at the same time.
References (4)
Core 4
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://github.com/torvalds/linux/commit/9590232bb4f4cc824f3425a6e1349afbe6d6d2b7
Issue Tracking, Patch, Vendor Advisory x_refsource_confirm
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9590232bb4f4cc824f3425a6e1349afbe6d6d2b7
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/94669
Third Party Advisory x_refsource_confirm
http://source.android.com/security/bulletin/2016-12-01.html
Scores
CVSS v3
7.8
EPSS
0.0174
EPSS Percentile
74.9%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Details
CWE
CWE-264
CWE-416
Status
published
Products (1)
linux/linux_kernel
3.14 - 3.16.40
Published
Dec 08, 2016
Tracked Since
Feb 18, 2026