CVE-2023-53459 — Use After Free in Linux

CWE-416 — Use After FreeCWE-825 — Expired Pointer Dereference5 documents5 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 95.25%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedOct 1

Description

In the Linux kernel, the following vulnerability has been resolved: HID: mcp-2221: prevent UAF in delayed work If the device is plugged/unplugged without giving time for mcp_init_work() to complete, we might kick in the devm free code path and thus have unavailable struct mcp_2221 while in delayed work. Canceling the delayed_work item is enough to solve the issue, because cancel_delayed_work_sync will prevent the work item to requeue itself.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages4 packages

▶Debianlinux/linux_kernel< 6.3.7-1+1
▶CVEListV5linux/linux960f9df7c620ecb6030aff1d9a6c3d67598b8290 — 5dc297652dbc557eba7ca7d6a4c5f1940dffffb1+2
▶debiandebian/linux< linux 6.3.7-1 (forky)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
OSV
CVE-2023-53459: In the Linux kernel, the following vulnerability has been resolved: HID: mcp-2221: prevent UAF in delayed work If the device is plugged/unplugged with↗2025-10-01
▶
GHSA
GHSA-prrg-pvxw-q4m2: In the Linux kernel, the following vulnerability has been resolved: HID: mcp-2221: prevent UAF in delayed work If the device is plugged/unplugged wi↗2025-10-01
▶

📋Vendor Advisories

2
Red Hat
kernel: HID: mcp-2221: prevent UAF in delayed work↗2025-10-01
▶
Debian
CVE-2023-53459: linux - In the Linux kernel, the following vulnerability has been resolved: HID: mcp-22...↗2023
▶