CVE-2022-50518 — Improper Locking in Linux

CWE-667 — Improper Locking6 documents6 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 99.00%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedOct 7
Latest updateApr 18

Description

In the Linux kernel, the following vulnerability has been resolved: parisc: Fix locking in pdc_iodc_print() firmware call Utilize pdc_lock spinlock to protect parallel modifications of the iodc_dbuf[] buffer, check length to prevent buffer overflow of iodc_dbuf[], drop the iodc_retbuf[] buffer and fix some wrong indentings.

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

▶NVDlinux/linux_kernel2.6.24.5 — 2.6.25+3
▶Debianlinux/linux_kernel< 6.1.4-1+2
▶CVEListV5linux/linuxef1afd4d79f0479960ff36bb5fe6ec6eba1ebff2 — 04a603058e70b8b881bb7860b8bd649f931f2591+4
▶debiandebian/linux< linux 6.1.4-1 (bookworm)

Patches

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

🔴Vulnerability Details

3
VulDB
Linux Kernel up to 6.0.17/6.1.3 parisc pdc_iodc_print iodc_dbuf[] buffer overflow (WID-SEC-2025-2229)↗2026-04-18
▶
OSV
CVE-2022-50518: In the Linux kernel, the following vulnerability has been resolved: parisc: Fix locking in pdc_iodc_print() firmware call Utilize pdc_lock spinlock to↗2025-10-07
▶
GHSA
GHSA-crw3-ph9v-p9p3: In the Linux kernel, the following vulnerability has been resolved: parisc: Fix locking in pdc_iodc_print() firmware call Utilize pdc_lock spinlock↗2025-10-07
▶

📋Vendor Advisories

2
Red Hat
kernel: parisc: Fix locking in pdc_iodc_print() firmware call↗2025-10-07
▶
Debian
CVE-2022-50518: linux - In the Linux kernel, the following vulnerability has been resolved: parisc: Fix...↗2022
▶