Description
Race condition in the ioctl_file_dedupe_range function in fs/ioctl.c in the Linux kernel through 4.7 allows local users to cause a denial of service (heap-based buffer overflow) or possibly gain privileges by changing a certain count value, aka a "double fetch" vulnerability.
Exploits (1)
References (5)
Core 5
Core References
Patch x_refsource_confirm
https://github.com/torvalds/linux/commit/10eec60ce79187686e052092e5383c99b4420a20
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/92259
Release Notes mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/07/31/6
Patch x_refsource_confirm
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=10eec60ce79187686e052092e5383c99b4420a20
Issue Tracking, Third Party Advisory, VDB Entry x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1362457
Scores
CVSS v3
7.4
EPSS
0.0052
EPSS Percentile
66.7%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-119
CWE-362
Status
published
Products (1)
linux/linux_kernel
< 4.7
Published
Aug 06, 2016
Tracked Since
Feb 18, 2026