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CVE Record

CVE-2023-54144: drm/amdkfd: Fix kernel warning during topology setup

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix kernel warning during topology setup This patch fixes the following kernel warning seen during driver load by correctly initializing the p2plink attr before creating the sysfs file: [ +0.002865] ------------[ cut here ]------------ [ +0.002327] kobject: '(null)' (0000000056260cfb): is not initialized, yet kobject_put() is being called. [ +0.004780] WARNING: CPU: 32 PID: 1006 at lib/kobject.c:718 kobject_put+0xaa/0x1c0 [ +0.001361] Call Trace: [ +0.001234] <TASK> [ +0.001067] kfd_remove_sysfs_node_entry+0x24a/0x2d0 [amdgpu] [ +0.003147] kfd_topology_update_sysfs+0x3d/0x750 [amdgpu] [ +0.002890] kfd_topology_add_device+0xbd7/0xc70 [amdgpu] [ +0.002844] ? lock_release+0x13c/0x2e0 [ +0.001936] ? smu_cmn_send_smc_msg_with_param+0x1e8/0x2d0 [amdgpu] [ +0.003313] ? amdgpu_dpm_get_mclk+0x54/0x60 [amdgpu] [ +0.002703] kgd2kfd_device_init.cold+0x39f/0x4ed [amdgpu] [ +0.002930] amdgpu_amdkfd_device_init+0x13d/0x1f0 [amdgpu] [ +0.002944] amdgpu_device_init.cold+0x1464/0x17b4 [amdgpu] [ +0.002970] ? pci_bus_read_config_word+0x43/0x80 [ +0.002380] amdgpu_driver_load_kms+0x15/0x100 [amdgpu] [ +0.002744] amdgpu_pci_probe+0x147/0x370 [amdgpu] [ +0.002522] local_pci_probe+0x40/0x80 [ +0.001896] work_for_cpu_fn+0x10/0x20 [ +0.001892] process_one_work+0x26e/0x5a0 [ +0.002029] worker_thread+0x1fd/0x3e0 [ +0.001890] ? process_one_work+0x5a0/0x5a0 [ +0.002115] kthread+0xea/0x110 [ +0.001618] ? kthread_complete_and_exit+0x20/0x20 [ +0.002422] ret_from_fork+0x1f/0x30 [ +0.001808] </TASK> [ +0.001103] irq event stamp: 59837 [ +0.001718] hardirqs last enabled at (59849): [<ffffffffb30fab12>] __up_console_sem+0x52/0x60 [ +0.004414] hardirqs last disabled at (59860): [<ffffffffb30faaf7>] __up_console_sem+0x37/0x60 [ +0.004414] softirqs last enabled at (59654): [<ffffffffb307d9c7>] irq_exit_rcu+0xd7/0x130 [ +0.004205] softirqs last disabled at (59649): [<ffffffffb307d9c7>] irq_exit_rcu+0xd7/0x130 [ +0.004203] ---[ end trace 0000000000000000 ]---

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This Linux kernel issue affects AMD GPU kernel driver initialization. The public description shows a kernel warning caused by an uninitialized kobject during AMD KFD topology setup, not a documented remote compromise path. Business urgency is mainly for fleets running affected Linux kernels with AMD GPU workloads.

Executive priority

Treat as a targeted Linux kernel maintenance item, not an emergency based on current evidence. Prioritize GPU-enabled servers, workstations, and compute nodes during normal kernel patch cycles unless vendor guidance raises severity.

Technical view

The flaw is in drm/amdkfd topology sysfs setup. During amdgpu driver load, p2plink attributes were not correctly initialized before sysfs file creation, leading to a kobject_put warning on an uninitialized object. The source bundle identifies Linux kernel versions and stable commits but gives no CVSS, CWE, or exploit mechanics.

Likely exposure

Exposure appears limited to Linux systems using the AMD GPU amdgpu/amdkfd stack on affected kernel builds. Systems without AMD GPU KFD functionality are less likely to be relevant. Distro backport status cannot be inferred from upstream version numbers alone.

Exploitation context

The source bundle does not show CISA KEV listing or any cited active exploitation. Available evidence describes a kernel warning during driver load, not a public exploit or attacker workflow. Treat exploitability as unproven from the provided sources.

Researcher notes

Evidence is sparse: no CVSS, CWE, KEV entry, or exploit report is provided. The safest interpretation is an upstream Linux kernel amdkfd initialization bug fixed by stable commits. Avoid expanding impact beyond the documented warning without further vendor analysis.

Mitigation direction

  • Review the referenced upstream stable commits and kernel vendor advisories.
  • Update affected Linux kernels through the distribution-supported channel when fixes are available.
  • Prioritize AMD GPU compute or graphics hosts using amdgpu/amdkfd.
  • Track distro backports rather than relying only on upstream kernel version strings.

Validation and detection

  • Inventory Linux hosts with AMD GPU hardware and amdgpu/amdkfd enabled.
  • Map running kernel packages to vendor advisories and upstream fixed commits.
  • Check boot or kernel logs for the described amdkfd kobject warning.
  • Confirm patched systems no longer reproduce the driver-load warning.
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2023-54144 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
0ADP providers
4Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux0f28cca87e9afc22280c44d378d2a6e249933977, 0f28cca87e9afc22280c44d378d2a6e249933977, 0f28cca87e9afc22280c44d378d2a6e249933977unaffected
LinuxLinux6.0, 0, 6.0.19, 6.1.5, 6.2affected
Weakness

CWE details

No CWE listed

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