Description
fs/ext4/inode.c in the Linux kernel before 4.6.2, when ext4 data=ordered mode is used, mishandles a needs-flushing-before-commit list, which allows local users to obtain sensitive information from other users' files in opportunistic circumstances by waiting for a hardware reset, creating a new file, making write system calls, and reading this file.
References (7)
Core 7
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://github.com/torvalds/linux/commit/06bd3c36a733ac27962fea7d6f47168841376824
Release Notes, Vendor Advisory x_refsource_confirm
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.2
Vendor Advisory x_refsource_confirm
https://source.android.com/security/bulletin/2017-09-01
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/98491
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1450261
Mailing List, Patch, Third Party Advisory x_refsource_confirm
http://www.openwall.com/lists/oss-security/2017/05/15/2
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06bd3c36a733ac27962fea7d6f47168841376824
Scores
CVSS v3
5.5
EPSS
0.0005
EPSS Percentile
15.8%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-200
Status
published
Products (2)
linux/linux_kernel
< 4.6.1
n/a/Linux kernel before 4.6.2
Linux kernel before 4.6.2
Published
May 15, 2017
Tracked Since
Feb 18, 2026