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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.
Base Score: 4.4
Impact Score: 6.4
Exploitability Score: 3.4
Base Score: 7.4
Impact Score: 5.9
Exploitability Score: 1.4
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 4.7 (inclusive)