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CVE PROGRAM SOURCE RECORDUnscored

CVE-2023-54174

vfio: Fix NULL pointer dereference caused by uninitialized group->iommufd

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Status
Published
Published
Updated
Assigning organization
Linux

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] <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

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 9eefba8002c27d65ab52a533fd0611b099b73591 to < 8f24eef598ce7cce0bbefe0ec642bcc031d0f528affected
  • 9eefba8002c27d65ab52a533fd0611b099b73591 to < d649c34cb916b015fdcb487e51409fcc5caeca8daffected

Linux Linux

Default version status: affected

  • 6.2affected
  • 0 to < 6.2unaffected
  • 6.2.3 to ≤ 6.2.*unaffected
  • 6.3 to ≤ *unaffected

References