CVE-2018-20449

kernel: reading "callback=" lines in a debugfs file in drivers/dma/qcom/hidma_dbg.c results in information disclosure

Loading…

Severity

Low

Red Hat Product Security

1.9

CVSS 3.0

Review impact separately from score.

Published · January 22, 2019

Updated · June 28, 2026

Description

The hidma_chan_stats() function in the drivers/dma/qcom/hidma_dbg.c file in the Linux kernel allows local users to obtain sensitive address information by reading "callback=" lines in a debugfs file. By default, the debugfs filesystem access is restricted so only a privileged user can access it.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 1.9
CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N

CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor