PT-2025-54003 · Linux · Linux Kernel

Published 2025-12-30 · Updated 2026-01-01 · CVE-2023-54174

Positive Technologies (AI Summary)

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

Description The Linux kernel contains a flaw where a NULL pointer dereference can occur due to an uninitialized group->iommufd. This issue is present in the iommufd ctx put() function and can be triggered through the vfio group fops unl ioctl function. The issue results in a kernel panic, as indicated by a 'BUG: kernel NULL pointer dereference' message. The call trace includes iommufd ctx put, vfio group fops unl ioctl, and system call functions.

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

Exploit

Related Identifiers

CVE-2023-54174

RHSA-2023:6583

Affected Products

Linux Kernel

References · 14

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54174.json · Exploit
• https://osv.dev/vulnerability/CVE-2023-54174 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-54174 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-54174 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-54174 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-54174 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2023-54174 · Vendor Advisory
• https://git.kernel.org/stable/c/8f24eef598ce7cce0bbefe0ec642bcc031d0f528 · Note
• https://git.kernel.org/stable/c/d649c34cb916b015fdcb487e51409fcc5caeca8d · Note
• https://twitter.com/CVEnew/status/2006861511826747733 · Twitter Post
• https://lore.kernel.org/linux-cve-announce/2025123022-CVE-2023-54174-1ff6@gregkh/T · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://git.kernel.org/linus/d649c34cb916b015fdcb487e51409fcc5caeca8d · Note
• https://docs.bell-sw.com/security/cves/CVE-2023-54174 · Note