CVE & CISA-KEV Catalog

CVE-2016-4794

HIGH
7.8
CVSS v3
NVD

Description

Use-after-free vulnerability in mm/percpu.c in the Linux kernel through 4.6 allows local users to cause a denial of service (BUG) or possibly have unspecified other impact via crafted use of the mmap and bpf system calls.

How to fix

Remediation Available
linuxDebian
Fixed in:4.6.2-2CVE-2016-4794
Fixed in:4.6.2-2CVE-2016-4794
Fixed in:4.6.2-2CVE-2016-4794
Fixed in:4.6.2-2CVE-2016-4794
linuxUbuntu
Fixed in:4.4.0-34.53USN-3055-1
linux-image-3.19.0-66-genericUbuntu
Fixed in:3.19.0-66.74~14.04.1USN-3053-1
linux-image-3.19.0-66-generic-lpaeUbuntu
Fixed in:3.19.0-66.74~14.04.1USN-3053-1
linux-image-3.19.0-66-lowlatencyUbuntu
Fixed in:3.19.0-66.74~14.04.1USN-3053-1
linux-image-3.19.0-66-powerpc-e500mcUbuntu
Fixed in:3.19.0-66.74~14.04.1USN-3053-1
linux-image-3.19.0-66-powerpc-smpUbuntu
Fixed in:3.19.0-66.74~14.04.1USN-3053-1
linux-image-3.19.0-66-powerpc64-embUbuntu
Fixed in:3.19.0-66.74~14.04.1USN-3053-1
linux-image-3.19.0-66-powerpc64-smpUbuntu
Fixed in:3.19.0-66.74~14.04.1USN-3053-1
linux-image-4.4.0-1019-raspi2Ubuntu
Fixed in:4.4.0-1019.25USN-3056-1
linux-image-4.4.0-1022-snapdragonUbuntu
Fixed in:4.4.0-1022.25USN-3057-1
linux-image-4.4.0-34-genericUbuntu
Fixed in:4.4.0-34.53~14.04.1USN-3054-1
Fixed in:4.4.0-34.53USN-3055-1
linux-image-4.4.0-34-generic-lpaeUbuntu
Fixed in:4.4.0-34.53~14.04.1USN-3054-1
Fixed in:4.4.0-34.53USN-3055-1
linux-image-4.4.0-34-lowlatencyUbuntu
Fixed in:4.4.0-34.53~14.04.1USN-3054-1
Fixed in:4.4.0-34.53USN-3055-1
linux-image-4.4.0-34-powerpc-e500mcUbuntu
Fixed in:4.4.0-34.53~14.04.1USN-3054-1
Fixed in:4.4.0-34.53USN-3055-1
linux-image-4.4.0-34-powerpc-smpUbuntu
Fixed in:4.4.0-34.53~14.04.1USN-3054-1
Fixed in:4.4.0-34.53USN-3055-1
linux-image-4.4.0-34-powerpc64-embUbuntu
Fixed in:4.4.0-34.53~14.04.1USN-3054-1
Fixed in:4.4.0-34.53USN-3055-1
linux-image-4.4.0-34-powerpc64-smpUbuntu
Fixed in:4.4.0-34.53~14.04.1USN-3054-1
Fixed in:4.4.0-34.53USN-3055-1
linux-lts-vividUbuntu
Fixed in:3.19.0-66.74~14.04.1USN-3053-1
linux-lts-xenialUbuntu
Fixed in:4.4.0-34.53~14.04.1USN-3054-1
linux-raspi2Ubuntu
Fixed in:4.4.0-1019.25USN-3056-1
linux-snapdragonUbuntu
Fixed in:4.4.0-1022.25USN-3057-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.50%probability of exploitation in 30 days
39thpercentile

Low risk: more likely to be exploited than 39% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.