CVE-2026-68281: Software Security Vulnerability Vulnerability

UNKNOWN

Advisory Identifier: GHSA-xmch-cvc7-cmxw

Published 2026-08-10

Advisory Summary

CVE-2026-68281 is a security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-68281 at a Glance

CVE Identifier CVE-2026-68281

GHSA Identifier GHSA-xmch-cvc7-cmxw

Severity N/A

CVSS v3.1 Base Score N/A

CWE Classification General Security Weakness

Affected Product Software

Package Ecosystem Maven

Published Date 2026-08-10

Last Updated 2026-08-10

How to Fix CVE-2026-68281

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-68281, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In the Linux kernel, the following vulnerability has been resolved: drm/imagination: Count paired job fence as dependency in prepare_job() The DRM scheduler's prepare_job() callback counts the remaining non-signaled native dependencies for a job, preventing job submission until those (plus job data and fence update) can fit in the job queue's CCCB. This means checking which dependencies can be waited upon in the firmware, i.e. whether they are backed by a UFO object, i.e. whether their drm_sched_fence::parent has been assigned to a pvr_queue_fence::base fence. That happens when the job owning the fence is submitted to the firmware. Paired geometry and fragment jobs are submitted at the same time, which means the dependency between them can't be checked this way before submission. Update job_count_remaining_native_deps() to take into account the dependency between paired jobs. This fixes cases where prepare_job() underestimated the space left in an almost full fragment CCCB, wrongly unblocking run_job(), which then returned early without writing the full sequence of commands to the CCCB. The above lead to kernel warnings such as the following and potentially job timeouts (depending on waiters on the missing commands): [ 375.702979] WARNING: drivers/gpu/drm/imagination/pvr_cccb.c:178 at pvr_cccb_write_command_with_header+0x2c4/0x330 [powervr], CPU#1: kworker/u16:3/47 [ 375.703160] Modules linked in: [ 375.703571] CPU: 1 UID: 0 PID: 47 Comm: kworker/u16:3 Tainted: G W 7.0.0-rc2-g817eb6b11ad5 #40 PREEMPT [ 375.703613] Tainted: [W]=WARN [ 375.703627] Hardware name: Texas Instruments AM625 SK (DT) [ 375.703645] Workqueue: powervr-sched drm_sched_run_job_work [gpu_sched] [ 375.703741] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 375.703764] pc : pvr_cccb_write_command_with_header+0x2c4/0x330 [powervr] [ 375.703847] lr : pvr_queue_submit_job_to_cccb+0x578/0xa70 [powervr] [ 375.703921] sp : ffff800084a97650 [ 375.703934] x29: ffff800084a97740 x28: 0000000000000958 x27: ffff80008565d000 [ 375.703979] x26: 0000000000000030 x25: ffff800084a97680 x24: 0000000000001000 [ 375.704017] x23: ffff800084a97820 x22: 1ffff00010952ecc x21: 0000000000000008 [ 375.704056] x20: 00000000000006a8 x19: ffff00002ff7da88 x18: 0000000000000000 [ 375.704093] x17: 0000000020020000 x16: 0000000000020000 x15: 0000000000000000 [ 375.704132] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 [ 375.704168] x11: 000000000000f2f2 x10: 00000000f3000000 x9 : 00000000f3f3f3f3 [ 375.704206] x8 : 00000000f2f2f200 x7 : ffff700010952ecc x6 : 0000000000000008 [ 375.704243] x5 : 0000000000000000 x4 : 1ffff00010acba00 x3 : 0000000000000000 [ 375.704279] x2 : 0000000000000007 x1 : 0000000000000fff x0 : 000000000000002f [ 375.704317] Call trace: [ 375.704331] pvr_cccb_write_command_with_header+0x2c4/0x330 [powervr] (P) [ 375.704411] pvr_queue_submit_job_to_cccb+0x578/0xa70 [powervr] [ 375.704487] pvr_queue_run_job+0x3a4/0x990 [powervr] [ 375.704562] drm_sched_run_job_work+0x580/0xd48 [gpu_sched] [ 375.704623] process_one_work+0x520/0x1288 [ 375.704658] worker_thread+0x3f0/0xb3c [ 375.704680] kthread+0x334/0x3d8 [ 375.704706] ret_from_fork+0x10/0x20 [ 375.704736] ---[ end trace 0000000000000000 ]---

References

NVD — CVE-2026-68281 NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-68281

git.kernel.org/stable/c/02b0da249c... WEB

https://git.kernel.org/stable/c/02b0da249c8f78d2bbf9f498bbd371c66142b0af

git.kernel.org/stable/c/943fa73ea0... WEB

https://git.kernel.org/stable/c/943fa73ea0efa335d9c1800fcfac47915de4ff89

git.kernel.org/stable/c/9cd74f9353... WEB

https://git.kernel.org/stable/c/9cd74f935306cd857f46686975c43383e1d95f94

git.kernel.org/stable/c/a673171502... WEB

https://git.kernel.org/stable/c/a673171502e87acb5a9e2923f4cf9dce521fd05e

Frequently Asked Questions

What is CVE-2026-68281?

CVE-2026-68281 is a security vulnerability in Software classified as a security vulnerability vulnerability under General Security Weakness.

Which Software versions are affected?

Affected versions include releases prior to current release patches.

What version fixes CVE-2026-68281?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

What CWE is associated with CVE-2026-68281?

CVE-2026-68281 is classified under General Security Weakness.

How can I check Maven dependencies for CVE-2026-68281?

Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.

Machine-readable OSV JSON OSV v1.5 Schema

Normalized schema output

View Raw JSON

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-xmch-cvc7-cmxw",
  "modified" : "2026-08-10T15:33:44Z",
  "published" : "2026-08-10T15:33:44Z",
  "aliases" : [ "CVE-2026-68281" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/imagination: Count paired job fence as dependency in prepare_job()\n\nThe DRM scheduler's prepare_job() callback counts the remaining\nnon-signaled native dependencies for a job, preventing job submission\nuntil those (plus job data and fence update) can fit in the job queue's\nCCCB.\n\nThis means checking which dependencies can be waited upon in the\nfirmware, i.e. whether they are backed by a UFO object, i.e. whether\ntheir drm_sched_fence::parent has been assigned to a\npvr_queue_fence::base fence. That happens when the job owning the fence\nis submitted to the firmware.\n\nPaired geometry and fragment jobs are submitted at the same time, which\nmeans the dependency between them can't be checked this way before\nsubmission.\n\nUpdate job_count_remaining_native_deps() to take into account the\ndependency between paired jobs.\n\nThis fixes cases where prepare_job() underestimated the space left in\nan almost full fragment CCCB, wrongly unblocking run_job(), which then\nreturned early without writing the full sequence of commands to the\nCCCB.\n\nThe above lead to kernel warnings such as the following and potentially\njob timeouts (depending on waiters on the missing commands):\n\n  [  375.702979] WARNING: drivers/gpu/drm/imagination/pvr_cccb.c:178 at pvr_cccb_write_command_with_header+0x2c4/0x330 [powervr], CPU#1: kworker/u16:3/47\n  [  375.703160] Modules linked in:\n  [  375.703571] CPU: 1 UID: 0 PID: 47 Comm: kworker/u16:3 Tainted: G        W           7.0.0-rc2-g817eb6b11ad5 #40 PREEMPT\n  [  375.703613] Tainted: [W]=WARN\n  [  375.703627] Hardware name: Texas Instruments AM625 SK (DT)\n  [  375.703645] Workqueue: powervr-sched drm_sched_run_job_work [gpu_sched]\n  [  375.703741] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n  [  375.703764] pc : pvr_cccb_write_command_with_header+0x2c4/0x330 [powervr]\n  [  375.703847] lr : pvr_queue_submit_job_to_cccb+0x578/0xa70 [powervr]\n  [  375.703921] sp : ffff800084a97650\n  [  375.703934] x29: ffff800084a97740 x28: 0000000000000958 x27: ffff80008565d000\n  [  375.703979] x26: 0000000000000030 x25: ffff800084a97680 x24: 0000000000001000\n  [  375.704017] x23: ffff800084a97820 x22: 1ffff00010952ecc x21: 0000000000000008\n  [  375.704056] x20: 00000000000006a8 x19: ffff00002ff7da88 x18: 0000000000000000\n  [  375.704093] x17: 0000000020020000 x16: 0000000000020000 x15: 0000000000000000\n  [  375.704132] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000\n  [  375.704168] x11: 000000000000f2f2 x10: 00000000f3000000 x9 : 00000000f3f3f3f3\n  [  375.704206] x8 : 00000000f2f2f200 x7 : ffff700010952ecc x6 : 0000000000000008\n  [  375.704243] x5 : 0000000000000000 x4 : 1ffff00010acba00 x3 : 0000000000000000\n  [  375.704279] x2 : 0000000000000007 x1 : 0000000000000fff x0 : 000000000000002f\n  [  375.704317] Call trace:\n  [  375.704331]  pvr_cccb_write_command_with_header+0x2c4/0x330 [powervr] (P)\n  [  375.704411]  pvr_queue_submit_job_to_cccb+0x578/0xa70 [powervr]\n  [  375.704487]  pvr_queue_run_job+0x3a4/0x990 [powervr]\n  [  375.704562]  drm_sched_run_job_work+0x580/0xd48 [gpu_sched]\n  [  375.704623]  process_one_work+0x520/0x1288\n  [  375.704658]  worker_thread+0x3f0/0xb3c\n  [  375.704680]  kthread+0x334/0x3d8\n  [  375.704706]  ret_from_fork+0x10/0x20\n  [  375.704736] ---[ end trace 0000000000000000 ]---",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-68281"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/02b0da249c8f78d2bbf9f498bbd371c66142b0af"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/943fa73ea0efa335d9c1800fcfac47915de4ff89"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9cd74f935306cd857f46686975c43383e1d95f94"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a673171502e87acb5a9e2923f4cf9dce521fd05e"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-10T13:20:17Z"
  }
}

Advisory Metadata

Source ID: GHSA-xmch-cvc7-cmxw
Schema Version: 1.4.0
Published: 2026-08-10 15:33
Last Modified: 2026-08-10 15:33
Database Record File: advisories/unreviewed/2026/08/GHSA-xmch-cvc7-cmxw/GHSA-xmch-cvc7-cmxw.json