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CVE-2025-21833— iommu/vt-d: Avoid use of NULL after WARN_ON_ONCE

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于iommu/vt-d模块在WARN_ON_ONCE触发后未正确处理NULL指针，可能导致使用空指针。

AI Predicted 3.3 Difficulty: Hard EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1200 · Hardware Additions

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux d87731f609318a27e9aa3d01cf97798599d32839< 68ec78beb4a3fb0877cbaaf49758c85410c05977 affected
d87731f609318a27e9aa3d01cf97798599d32839< df96876be3b064aefc493f760e0639765d13ed0d affected
d87731f609318a27e9aa3d01cf97798599d32839< 60f030f7418d3f1d94f2fb207fe3080e1844630b affected
6.7 affected
< 6.7 unaffected
6.12.57≤ 6.12.* unaffected
6.13.3≤ 6.13.* unaffected
6.14≤ * unaffected
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I. Basic Information for CVE-2025-21833

Vulnerability Information
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Vulnerability Title
iommu/vt-d: Avoid use of NULL after WARN_ON_ONCE
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Avoid use of NULL after WARN_ON_ONCE There is a WARN_ON_ONCE to catch an unlikely situation when domain_remove_dev_pasid can't find the `pasid`. In case it nevertheless happens we must avoid using a NULL pointer.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于iommu/vt-d模块在WARN_ON_ONCE触发后未正确处理NULL指针，可能导致使用空指针。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux d87731f609318a27e9aa3d01cf97798599d32839 ~ 68ec78beb4a3fb0877cbaaf49758c85410c05977 -
Linux Linux 6.7 -

II. Public POCs for CVE-2025-21833

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III. Intelligence Information for CVE-2025-21833

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Patches & Fixes for CVE-2025-21833 (2)

Same Patch Batch · Linux · 2025-03-06 · 46 CVEs total

CVE-2025-21829 9.8 CRITICAL RDMA/rxe: Fix the warning "__rxe_cleanup+0x12c/0x170 [rdma_rxe]"
CVE-2025-21828 8.8 HIGH wifi: mac80211: don't flush non-uploaded STAs
CVE-2024-58075 7.8 HIGH crypto: tegra - do not transfer req when tegra init fails
CVE-2024-58060 7.8 HIGH bpf: Reject struct_ops registration that uses module ptr and the module btf_id is missing
CVE-2024-58086 7.8 HIGH drm/v3d: Stop active perfmon if it is being destroyed
CVE-2025-21827 7.8 HIGH Bluetooth: btusb: mediatek: Add locks for usb_driver_claim_interface()
CVE-2024-58079 7.8 HIGH media: uvcvideo: Fix crash during unbind if gpio unit is in use
CVE-2025-21826 7.8 HIGH netfilter: nf_tables: reject mismatching sum of field_len with set key length
CVE-2024-58070 7.8 HIGH bpf: bpf_local_storage: Always use bpf_mem_alloc in PREEMPT_RT
CVE-2024-58083 7.8 HIGH KVM: Explicitly verify target vCPU is online in kvm_get_vcpu()
CVE-2025-21825 7.8 HIGH bpf: Cancel the running bpf_timer through kworker for PREEMPT_RT
CVE-2024-58069 7.8 HIGH rtc: pcf85063: fix potential OOB write in PCF85063 NVMEM read
CVE-2025-21832 7.8 HIGH block: don't revert iter for -EIOCBQUEUED
CVE-2024-58053 7.5 HIGH rxrpc: Fix handling of received connection abort
CVE-2025-21830 7.3 HIGH landlock: Handle weird files
CVE-2024-58062 wifi: iwlwifi: mvm: avoid NULL pointer dereference
CVE-2024-58063 wifi: rtlwifi: fix memory leaks and invalid access at probe error path
CVE-2024-58073 drm/msm/dpu: check dpu_plane_atomic_print_state() for valid sspp
CVE-2024-58064 wifi: cfg80211: tests: Fix potential NULL dereference in test_cfg80211_parse_colocated_ap(
CVE-2024-58061 wifi: mac80211: prohibit deactivating all links

Showing top 20 of 46 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-21833

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