Unrated severityNVD Advisory· Published Nov 30, 2014· Updated Jun 17, 2026

CVE-2014-7843

Description

The __clear_user function in arch/arm64/lib/clear_user.S in the Linux kernel before 3.17.4 on the ARM64 platform allows local users to cause a denial of service (system crash) by reading one byte beyond a /dev/zero page boundary.

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:*:*:*:*:*:*:arm64:*+ 1 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:arm64:*range: <=3.17.3
- (no CPE)range: <3.17.4

Patches

Vulnerability mechanics

References

bugzilla.redhat.com/show_bug.cginvdPatchVendor Advisory
github.com/torvalds/linux/commit/97fc15436b36ee3956efad83e22a557991f7d19dnvdPatchVendor Advisory
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.4nvdVendor Advisory
git.kernel.orgnvd
secunia.com/advisories/62305nvd
www.openwall.com/lists/oss-security/2014/11/13/5nvd
www.securityfocus.com/bid/71082nvd

News mentions

No linked articles in our index yet.

cvss	0.000
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000