CVE-2016-6516
High
CVE-2016-6516
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.
Exploit probability
0.9%
Published
August 6, 2016
Required by
Not available
Last source change
March 15, 2026
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2016-6516
View original source
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.
05 / REFERENCES
Further evidence
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=10eec60ce79187686e052092e5383c99b4420a20
- http://www.openwall.com/lists/oss-security/2016/07/31/6
- http://www.securityfocus.com/bid/92259
- https://bugzilla.redhat.com/show_bug.cgi?id=1362457
- https://github.com/torvalds/linux/commit/10eec60ce79187686e052092e5383c99b4420a20