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CVE-2016-6197 PUBLISHED

fs/overlayfs/dir.c in the OverlayFS filesystem implementation in the Linux kernel before 4.6 does not properly verify the upper dentry before proceeding with unlink and rename system-call processing, which allows local users to cause a denial of service (system crash) via a rename system call that specifies a self-hardlink.

EPSS 0.06% · 17.4th percentile

Risk Scores

EPSS Score
0.06%
17.4th percentile

Affected Products

VendorProductVersions
Ubuntu:20.04:LTSlinux-azure-fde5.4.0-1089.94+cvm1.2, 5.4.0-1085.90+cvm2.1, 5.4.0-1085.90+cvm1.1
Ubuntu:20.04:LTSlinux-raspi25.4.0-1006.6, 5.3.0-1017.19, 5.3.0-1015.17
Ubuntu:20.04:LTSlinux-gkeop-5.155.15.0-1003.5~20.04.2, 5.15.0-1005.7~20.04.1, 0
Ubuntu:16.04:LTSlinux-snapdragon4.4.0-1013.14, 4.4.0-1012.12, 0
Ubuntu:16.04:LTSlinux-raspi24.3.0-1006.6, 4.2.0-1013.19, 0
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.116.11.0-1016.17~24.04.1, 6.11.0-1015.16~24.04.2, 6.11.0-1014.15~24.04.1
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1014.14~24.04.1, 6.11.0-1017.17~24.04.1, 6.11.0-1018.18~24.04.1
Ubuntu:Pro:14.04:LTSlinux3.13.0-123.172, 3.13.0-125.174, 3.13.0-126.175
Ubuntu:24.04:LTSlinux-raspi-realtime0, 6.8.0-2019.20
Ubuntu:20.04:LTSlinux-gkeop5.4.0-1083.87, 0, 5.4.0-1008.9
Ubuntu:Pro:20.04:LTSlinux-azure-fde-5.155.15.0-1103.112~20.04.1.1, 5.15.0-1074.83~20.04.1.1, 5.15.0-1061.70~20.04.1.1
Ubuntu:20.04:LTSlinux-riscv0, 5.4.0-24.28, 5.4.0-26.30
Ubuntu:20.04:LTSlinux-gke5.4.0-1105.112, 5.4.0-1101.108, 5.4.0-1100.107
Ubuntu:24.04:LTSlinux-gcp-6.110, 6.11.0-1017.17~24.04.1, 6.11.0-1016.16~24.04.1
Ubuntu:24.04:LTSlinux-hwe-6.116.11.0-17.17~24.04.2, 0, 6.11.0-28.28~24.04.1
Ubuntu:14.04:LTSlinux-lts-xenial4.4.0-14.30~14.04.2, 4.4.0-34.53~14.04.1, 0
Ubuntu:22.04:LTSlinux-intel-iot-realtime5.15.0-1073.75, 0
Ubuntu:22.04:LTSlinux-realtime0, 5.15.0-1032.35
Ubuntu:16.04:LTSlinux4.4.0-15.31, 4.4.0-16.32, 4.4.0-17.33
Ubuntu:22.04:LTSlinux-riscv5.13.0-1004.4, 5.15.0-1028.32, 5.15.0-1027.31

Timeline

References

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