CVE-2022-49527

Local kernel crash via Venus probe teardown

Published Feb 26, 2025 · Updated Aug 15, 2026

NULL pointer dereference in the Linux Venus HFI driver allows local users to crash the kernel through a probe failure. When pm_runtime_put_sync fails in venus_probe, error handling calls hfi_destroy before hfi_core_deinit; the first call clears core->ops, and the second dereferences it. Reachability requires local low-privileged access and a Qualcomm Venus HFI probe path that encounters the runtime power-management failure.

CVSS severity5.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the Linux Venus HFI driver allows local users to crash the kernel through a probe failure. When pm_runtime_put_sync fails in venus_probe, error handling calls hfi_destroy before hfi_core_deinit; the first call clears core->ops, and the second dereferences it. Reachability requires local low-privileged access and a Qualcomm Venus HFI probe path that encounters the runtime power-management failure.

The record

CVE
CVE-2022-49527
Published
Feb 26, 2025
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=08b1cf474b7f72750adebe0f0a35f8e9a3eb75f6 <0ed5a643b1a4a46b9b7bfba5d468c10cc30e1359
  2. Affected versionversion=08b1cf474b7f72750adebe0f0a35f8e9a3eb75f6 <86594f6af867b5165d2ba7b5a71fae3a5961e56c
  3. Affected versionversion=08b1cf474b7f72750adebe0f0a35f8e9a3eb75f6 <9c385b961d4c378228e80f6abea8509cb67feab6
  4. Affected versionversion=08b1cf474b7f72750adebe0f0a35f8e9a3eb75f6 <b73ed0510bb8d9647cd8e8a4c4c8772bbe545c3a
  5. Affected versionversion=5.10.94 <5.10.121
  6. Affected versionversion=5.12.3 <5.13
  7. Affected versionversion=5.13
  8. Affected versionversion=54f1727a0956bcbed3a88540577c5e7dbab93aec
  9. Affected versionversion=eeefa2eae8fc82ad757a2241b9f82ac33e99e6b4 <27ad46da44177a78a4a0cae6fe03906888c61aa1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=08b1cf474b7f72750adebe0f0a35f8e9a3eb75f6 <0ed5a643b1a4a46b9b7bfba5d468c10cc30e1359; version=08b1cf474b7f72750adebe0f0a35f8e9a3eb75f6 <86594f6af867b5165d2ba7b5a71fae3a5961e56c; version=08b1cf474b7f72750adebe0f0a35f8e9a3eb75f6 <9c385b961d4c378228e80f6abea8509cb67feab6; version=08b1cf474b7f72750adebe0f0a35f8e9a3eb75f6 <b73ed0510bb8d9647cd8e8a4c4c8772bbe545c3a; version=5.10.94 <5.10.121; version=5.12.3 <5.13; version=5.13; version=54f1727a0956bcbed3a88540577c5e7dbab93aec; version=eeefa2eae8fc82ad757a2241b9f82ac33e99e6b4 <27ad46da44177a78a4a0cae6fe03906888c61aa1

Published CVSS scores

5.5CISACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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