CVE-2019-18806

MEDIUM

Linux Kernel <5.3.5 - DoS

Title source: llm

Description

A memory leak in the ql_alloc_large_buffers() function in drivers/net/ethernet/qlogic/qla3xxx.c in the Linux kernel before 5.3.5 allows local users to cause a denial of service (memory consumption) by triggering pci_dma_mapping_error() failures, aka CID-1acb8f2a7a9f.

References (2)

[Mailing List, Vendor Advisory] https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.5

[Mailing List, Patch, Third Party Advisory] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1acb8f2a7a9f10543868ddd737e37424d5c36cf4

Scores

CVSS v3 5.5

EPSS 0.0011

EPSS Percentile 28.9%

Attack Vector LOCAL

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

Classification

CWE

CWE-401

Status published

Affected Products (1)

linux/linux_kernel < 5.3.5

Timeline

Published Nov 07, 2019

Tracked Since Feb 18, 2026