CVE-2026-68281

UNRATEDCVSS · not yet scored
—
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS v2: —Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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 ]---

CVSS v3
—
EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
—
EG Risk
—
EPSS PROB
0.2%
EPSS %ILE
6th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

EG Severity
Not assessed: no CVSS publishedA missing CVSS is not a severity of zero.
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
No SSVC decision: EchelonGraph has not assessed this CVECISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the BOD 26-04 block below.

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 10, 2026

Last Modified

August 17, 2026

References (4)

Vendor Advisories for CVE-2026-68281(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux-6.126.12.100-1~deb12u1
  • every version up to 6.12.101-1~deb12u1: fixed in 6.12.101-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.12.96-1 (32 versions)
  • every version up to 6.12.101-1: fixed in 6.12.101-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (161 versions)
  • every version up to 7.1.6-1: fixed in 7.1.6-1
—

Data Freshness Timeline

(refreshed 7× in last 7d / 35× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 83 is merged into the row it repeats.

  1. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  2. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  3. 2026-10-18 03:19 UTCEG score recompute
  4. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  5. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  6. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  7. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  8. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  9. 2026-10-12 15:45 UTCEG score recompute
  10. 2026-10-11 19:30 UTCEG score recompute
  11. 2026-10-11 16:45 UTCEG score recompute
  12. 2026-10-11 14:06 UTCEG score recompute
  13. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  14. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  15. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  16. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  17. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  18. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  19. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  20. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  21. 2026-10-04 05:23 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  22. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  23. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  24. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  25. 2026-09-30 22:39 UTCEG score recompute
Show 57 more
  1. 2026-09-30 22:39 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  2. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  3. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  4. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  5. 2026-09-27 13:13 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  6. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  7. 2026-09-23 22:07 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  8. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  9. 2026-09-20 20:20 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  10. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  11. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  12. 2026-09-17 09:59 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  13. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  14. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  15. 2026-09-14 08:11 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  16. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  17. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  18. 2026-09-11 06:23 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  19. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  20. 2026-09-08 04:36 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  21. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  22. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  23. 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  24. 2026-09-05 02:03 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  25. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  26. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  27. 2026-09-01 17:19 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  28. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  29. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  30. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  31. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  32. 2026-08-29 15:30 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  33. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  34. 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  35. 2026-08-26 10:59 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  36. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  37. 2026-08-23 09:12 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  38. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  39. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  40. 2026-08-20 22:56 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  41. 2026-08-20 07:24 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  42. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  43. 2026-08-18 13:49 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  44. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  45. 2026-08-17 05:37 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  46. 2026-08-17 05:26 UTCNVD update
  47. 2026-08-17 05:07 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  48. 2026-08-17 05:05 UTCMITRE cvelistV5
  49. 2026-08-16 17:05 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  50. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  51. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  52. 2026-08-13 15:17 UTCEG score recompute
  53. 2026-08-13 15:17 UTCGHSA enrichmentGHSA-xmch-cvc7-cmxw
  54. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  55. 2026-08-10 13:24 UTCNVD update
  56. 2026-08-10 12:19 UTCEG score recompute
  57. 2026-08-10 12:17 UTCMITRE cvelistV5first tracked

Frequently asked(4)

What is CVE-2026-68281?
CVE-2026-68281 is a vulnerability whose severity is not yet rated; its CVE record was published on August 10, 2026. 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…
When was the CVE record for CVE-2026-68281 published?
The CVE record for CVE-2026-68281 was published on August 10, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of August 17, 2026; the record at its source may have been updated since.
Is CVE-2026-68281 actively exploited?
CVE-2026-68281 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (6th percentile of EPSS-scored CVEs).
How do I remediate CVE-2026-68281?
A fix for CVE-2026-68281 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-68281 are linked in the Vendor Advisories panel on this page.

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