Bug 2363701 (CVE-2023-53059) - CVE-2023-53059 kernel: platform/chrome: cros_ec_chardev: fix kernel data leak from ioctl
Summary: CVE-2023-53059 kernel: platform/chrome: cros_ec_chardev: fix kernel data leak...
Keywords:
Status: NEW
Alias: CVE-2023-53059
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-05-02 16:02 UTC by OSIDB Bzimport
Modified: 2025-05-05 05:47 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2025-05-02 16:02:21 UTC 
In the Linux kernel, the following vulnerability has been resolved:

platform/chrome: cros_ec_chardev: fix kernel data leak from ioctl

It is possible to peep kernel page's data by providing larger `insize`
in struct cros_ec_command[1] when invoking EC host commands.

Fix it by using zeroed memory.

[1]: https://elixir.bootlin.com/linux/v6.2/source/include/linux/platform_data/cros_ec_proto.h#L74
Comment 1 Avinash Hanwate 2025-05-05 05:36:13 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025050209-CVE-2023-53059-47f3@gregkh/T
Note You need to log in before you can comment on or make changes to this bug.