High severity7.4NVD Advisory· Published Aug 6, 2016· Updated Jun 17, 2026

CVE-2016-6516

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Linux/Kernel2 versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: <=4.7
- (no CPE)range: <=4.7
osv-coords
pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Tumbleweed
Range: < 4.8.13-1.1

Patches

Vulnerability mechanics

References

git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvdPatch
github.com/torvalds/linux/commit/10eec60ce79187686e052092e5383c99b4420a20nvdPatch
bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party AdvisoryVDB Entry
www.openwall.com/lists/oss-security/2016/07/31/6nvdRelease Notes
www.securityfocus.com/bid/92259nvd

News mentions

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cvss	0.481
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000