CVE-2023-54174 — Access of Uninitialized Pointer in Linux

CWE-824 — Access of Uninitialized Pointer7 documents6 sources
Severity
5.5MEDIUM
No vector
EPSS
0.0%
top 92.35%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedDec 30

Description

In the Linux kernel, the following vulnerability has been resolved: vfio: Fix NULL pointer dereference caused by uninitialized group->iommufd group->iommufd is not initialized for the iommufd_ctx_put() [20018.331541] BUG: kernel NULL pointer dereference, address: 0000000000000000 [20018.377508] RIP: 0010:iommufd_ctx_put+0x5/0x10 [iommufd] ... [20018.476483] Call Trace: [20018.479214] [20018.481555] vfio_group_fops_unl_ioctl+0x506/0x690 [vfio] [20018.487586] __x64_sys_ioctl+0x6a/0xb0 [20018.49…

Affected Packages3 packages

▶Linuxlinux/linux_kernel6.2.0 — 6.2.3
▶CVEListV5linux/linux9eefba8002c27d65ab52a533fd0611b099b73591 — 8f24eef598ce7cce0bbefe0ec642bcc031d0f528+2
▶debiandebian/linux

🔴Vulnerability Details

3
OSV
vfio: Fix NULL pointer dereference caused by uninitialized group->iommufd↗2025-12-30
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OSV
CVE-2023-54174: In the Linux kernel, the following vulnerability has been resolved: vfio: Fix NULL pointer dereference caused by uninitialized group->iommufd group->i↗2025-12-30
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GHSA
GHSA-p5cq-xjmm-63wj: In the Linux kernel, the following vulnerability has been resolved: vfio: Fix NULL pointer dereference caused by uninitialized group->iommufd group-↗2025-12-30
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📋Vendor Advisories

2
Red Hat
kernel: vfio: Fix NULL pointer dereference caused by uninitialized group->iommufd↗2025-12-30
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Debian
CVE-2023-54174: linux - In the Linux kernel, the following vulnerability has been resolved: vfio: Fix N...↗2023
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🕵️Threat Intelligence

1
Wiz
CVE-2023-54174 Impact, Exploitability, and Mitigation Steps | Wiz↗
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