CVE-2026-68260

System crash via unlocked GPUVM map race

Published Aug 10, 2026 · Updated Aug 10, 2026

A GPUVM race in Linux kernel 6.8 through 7.2-rc4 allows local users with PowerVR render-node access to crash the system. pvr_vm_map omits vm_ctx->lock while map and unmap ioctls can run beside drm_gpuva_find, allowing a found GPUVA object to be freed before dereference. Any low-privileged process able to open the PowerVR render node can drive both sides of the race; systems without PowerVR hardware are unaffected.

CVSS severity7.8
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A GPUVM race in Linux kernel 6.8 through 7.2-rc4 allows local users with PowerVR render-node access to crash the system. pvr_vm_map omits vm_ctx->lock while map and unmap ioctls can run beside drm_gpuva_find, allowing a found GPUVA object to be freed before dereference. Any low-privileged process able to open the PowerVR render node can drive both sides of the race; systems without PowerVR hardware are unaffected.

The record

CVE
CVE-2026-68260
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 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=6.8
  2. Affected versionversion=ff5f643de0bf27874c4033cd57a0bd034b5c7d11 <15f58d44c24477a6ebffa44ec05207b81cfa55d9
  3. Affected versionversion=ff5f643de0bf27874c4033cd57a0bd034b5c7d11 <17e2030f37600994440f875dc410615d5c66ee6d
  4. Affected versionversion=ff5f643de0bf27874c4033cd57a0bd034b5c7d11 <1f1f2618e44b21a7d4eb30d3bbd7e015ffbbbadf
  5. Affected versionversion=ff5f643de0bf27874c4033cd57a0bd034b5c7d11 <6253bb56bb2ebdf317d8b599ce737a2510cc2e17

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.8; version=ff5f643de0bf27874c4033cd57a0bd034b5c7d11 <15f58d44c24477a6ebffa44ec05207b81cfa55d9; version=ff5f643de0bf27874c4033cd57a0bd034b5c7d11 <17e2030f37600994440f875dc410615d5c66ee6d; version=ff5f643de0bf27874c4033cd57a0bd034b5c7d11 <1f1f2618e44b21a7d4eb30d3bbd7e015ffbbbadf; version=ff5f643de0bf27874c4033cd57a0bd034b5c7d11 <6253bb56bb2ebdf317d8b599ce737a2510cc2e17

Published CVSS scores

5.5Red HatCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.7Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8Linux kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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.

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Technologies

Your stack

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Your stack

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