PT-2025-53925 · Linux+1 · Linux Kernel+1

Published 2022-01-01 · Updated 2026-04-20 · CVE-2022-50785

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Medium

Base vector

AV:L/AC:L/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The Linux kernel contains a use-after-free issue within the FSI (file system interface) component, specifically related to the occ functionality. The issue occurs because the device could be freed while a file descriptor is open. The resolution involves using get device and put device in the open and close functions to ensure the device remains valid during file descriptor usage. Additionally, a lock is implemented around the freeing of the device buffer, and a check is performed on the buffer before its use in the submit function.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2026-00454

CVE-2022-50785

Affected Products

Debian

Linux Kernel

References · 18

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50785.json · Exploit
• https://osv.dev/vulnerability/CVE-2022-50785 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2022-50785 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50785 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-50785 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50785 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-00454 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50785 · Security Note
• https://ubuntu.com/security/CVE-2022-50785 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-50785 · Vendor Advisory
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://git.kernel.org/stable/c/d3e1e24604031b0d83b6c2d38f54eeea265cfcc0 · Note
• https://t.me/cveNotify/147129 · Telegram Post
• https://lore.kernel.org/linux-cve-announce/2025123028-CVE-2022-50785-ed95@gregkh · Note
• https://twitter.com/CVEnew/status/2006861541405012235 · Twitter Post