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CVE-2023-54174 PUBLISHED

Reported by Linux · Published December 30, 2025

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] <TASK> [20018.481555] vfio_group_fops_unl_ioctl+0x506/0x690 [vfio] [20018.487586] __x64_sys_ioctl+0x6a/0xb0 [20018.491773] ? trace_hardirqs_on+0xc5/0xe0 [20018.496347] do_syscall_64+0x67/0x90 [20018.500340] entry_SYSCALL_64_after_hwframe+0x4b/0xb5

EPSS 0.03% · 7.6th percentile

Risk Scores

EPSS Score
0.03%
7.6th percentile

Affected Products

VendorProductVersions
LinuxLinux9eefba8002c27d65ab52a533fd0611b099b73591, 9eefba8002c27d65ab52a533fd0611b099b73591
LinuxLinux6.2, 0, 6.2.3
LinuxLinux9eefba8002c27d65ab52a533fd0611b099b73591, 9eefba8002c27d65ab52a533fd0611b099b73591, 6.2
linuxlinux_kernel6.2, 6.2, 6.2

Timeline

References

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