CVE-2026-63879: linux Race Condition

CVSS: 7.8v3.1HighAwaiting analysis

AliasesUBUNTU-CVE-2026-63879DEBIAN-CVE-2026-63879

Published 19-07-2026Last modified 19-10-2026

Vulnerability summary

CVE-2026-63879 is a high (CVSS 7.8) Race Condition vulnerability in linux. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 2.9% of scored vulnerabilities.

Overall risk

31/100

0100

Medium · default modelHow is this calculated?

CVSS score

7.8/10

010

High · v3.1 (CVE.org)

EPSS score

0.14%

0%100%

Low · -0.03 pp in 30 days

KEVNot listedIn no KEV catalog

RansomwareNone recordedNo known use recorded

Public exploits0No public exploits recorded

Timeline

19-07-2026
PublishedVulnerability first disclosed.
19-10-2026
Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix amdgpu_hmm_range_get_pages The notifier sequence must only be read once or otherwise we could work with invalid pages. While at it also fix the coding style, e.g. drop the pre-initialized return value and use the common define for 2G range. (cherry picked from commit c08972f555945cda57b0adb72272a37910153390)

CVSS metrics

5 scores · 4 sources · 2 versions

v4.07.3v3.17.8

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

Versus all other CVEs

30-day change

-0.03 pp

From 0.17% on 20-09-2026

20-09-202620-10-2026

EPSS score

0.14%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Affected systems

Ubuntu141 products

linuxAll versions (No fix recorded) | < 7.0.0-28.28
linux-allwinner-5.19All versions (No fix recorded)
linux-awsAll versions (No fix recorded) | < 7.0.0-1009.9
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11All versions (No fix recorded)

linux-aws-5.13All versions (No fix recorded)
linux-aws-5.19All versions (No fix recorded)
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.8All versions (No fix recorded)
linux-aws-6.14All versions (No fix recorded)
linux-aws-6.17All versions (No fix recorded)
linux-aws-6.2All versions (No fix recorded)
linux-aws-6.5All versions (No fix recorded)
linux-aws-6.8All versions (No fix recorded)
linux-aws-fipsAll versions (No fix recorded)
linux-azureAll versions (No fix recorded) | < 7.0.0-1010.10
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.19All versions (No fix recorded)
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.8All versions (No fix recorded)
linux-azure-6.11All versions (No fix recorded)
linux-azure-6.14All versions (No fix recorded)
linux-azure-6.17All versions (No fix recorded)
linux-azure-6.2All versions (No fix recorded)
linux-azure-6.5All versions (No fix recorded)
linux-azure-6.8All versions (No fix recorded)
linux-azure-7.0< 7.0.0-1014.14~24.04.1
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fdeAll versions (No fix recorded) | < 7.0.0-1009.9
linux-azure-fde-5.19All versions (No fix recorded)
linux-azure-fde-6.14All versions (No fix recorded)
linux-azure-fde-6.17All versions (No fix recorded)
linux-azure-fde-6.2All versions (No fix recorded)
linux-azure-fde-6.8All versions (No fix recorded)
linux-azure-fde-7.0All versions (No fix recorded)
linux-azure-fipsAll versions (No fix recorded)
linux-azure-nvidiaAll versions (No fix recorded)
linux-azure-nvidia-6.14All versions (No fix recorded)
linux-bluefieldAll versions (No fix recorded)
linux-fipsAll versions (No fix recorded)
linux-gcpAll versions (No fix recorded) | < 7.0.0-1008.8
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.19All versions (No fix recorded)
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-6.11All versions (No fix recorded)
linux-gcp-6.14All versions (No fix recorded)
linux-gcp-6.17All versions (No fix recorded)
linux-gcp-6.2All versions (No fix recorded)
linux-gcp-6.5All versions (No fix recorded)
linux-gcp-6.8All versions (No fix recorded)
linux-gcp-7.0< 7.0.0-1011.11~24.04.1
linux-gcp-fipsAll versions (No fix recorded)
linux-gkeAll versions (No fix recorded) | < 7.0.0-1003.4
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15All versions (No fix recorded)
linux-gke-5.4All versions (No fix recorded)
linux-gkeopAll versions (No fix recorded)
linux-gkeop-5.15All versions (No fix recorded)
linux-gkeop-5.4All versions (No fix recorded)
linux-hweAll versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13All versions (No fix recorded)
linux-hwe-5.19All versions (No fix recorded)
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-6.11All versions (No fix recorded)
linux-hwe-6.14All versions (No fix recorded)
linux-hwe-6.17All versions (No fix recorded)
linux-hwe-6.2All versions (No fix recorded)
linux-hwe-6.5All versions (No fix recorded)
linux-hwe-6.8All versions (No fix recorded)
linux-hwe-7.0< 7.0.0-28.28~24.04.1
linux-hwe-edgeAll versions (No fix recorded)
linux-ibmAll versions (No fix recorded) | < 7.0.0-1010.10
linux-ibm-6.8All versions (No fix recorded)
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-lowlatencyAll versions (No fix recorded)
linux-lowlatency-hwe-5.19All versions (No fix recorded)
linux-lowlatency-hwe-6.11All versions (No fix recorded)
linux-lowlatency-hwe-6.2All versions (No fix recorded)
linux-lowlatency-hwe-6.5All versions (No fix recorded)
linux-lowlatency-hwe-6.8All versions (No fix recorded)
linux-nvidiaAll versions (No fix recorded) | < 7.0.0-1016.16
linux-nvidia-6.11All versions (No fix recorded)
linux-nvidia-6.17All versions (No fix recorded)
linux-nvidia-6.2All versions (No fix recorded)
linux-nvidia-6.5All versions (No fix recorded)
linux-nvidia-6.8All versions (No fix recorded)
linux-nvidia-7.0< 7.0.0-1016.16~24.04.1
linux-nvidia-bos< 7.0.0-2016.16
linux-nvidia-lowlatencyAll versions (No fix recorded)
linux-nvidia-tegra< 6.8.0-1036.39
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.13All versions (No fix recorded)
linux-oem-5.14All versions (No fix recorded)
linux-oem-5.17All versions (No fix recorded)
linux-oem-5.6All versions (No fix recorded)
linux-oem-6.0All versions (No fix recorded)
linux-oem-6.1All versions (No fix recorded)
linux-oem-6.11All versions (No fix recorded)
linux-oem-6.14All versions (No fix recorded)
linux-oem-6.17All versions (No fix recorded)
linux-oem-6.5All versions (No fix recorded)
linux-oem-6.8All versions (No fix recorded)
linux-oem-7.0< 7.0.0-1009.9
linux-oracleAll versions (No fix recorded) | < 7.0.0-1008.8
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11All versions (No fix recorded)
linux-oracle-5.13All versions (No fix recorded)
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.8All versions (No fix recorded)
linux-oracle-6.14All versions (No fix recorded)
linux-oracle-6.17All versions (No fix recorded)
linux-oracle-6.5All versions (No fix recorded)
linux-oracle-6.8All versions (No fix recorded)
linux-oracle-7.0< 7.0.0-1011.11~24.04.1
linux-raspiAll versions (No fix recorded) | < 7.0.0-1015.15
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 7.0.0-28.28.1
linux-realtime-6.14All versions (No fix recorded)
linux-realtime-6.17All versions (No fix recorded)
linux-realtime-6.8All versions (No fix recorded)
linux-riscvAll versions (No fix recorded) | < 7.0.0-28.28.1
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.19All versions (No fix recorded)
linux-riscv-5.8All versions (No fix recorded)
linux-riscv-6.14All versions (No fix recorded)
linux-riscv-6.17All versions (No fix recorded)
linux-riscv-6.5All versions (No fix recorded)
linux-riscv-6.8All versions (No fix recorded)
linux-riscv-7.0< 7.0.0-28.28.1~24.04.3
linux-starfive-5.19All versions (No fix recorded)
linux-starfive-6.2All versions (No fix recorded)
linux-starfive-6.5All versions (No fix recorded)
linux-vmwareAll versions (No fix recorded)
linux-xilinxAll versions (No fix recorded)

Show all 141

Debian1 product

linuxAll versions (No fix recorded) | < 7.0.12-1

Linux1 product

linux≥ c1420a5dd4dd2a1ffc86965ad1c6f439afb130bc, < fa34d3e14cb763b50702e8a0f7d4cfd877a73ab9 | ≥ c1420a5dd4dd2a1ffc86965ad1c6f439afb130bc, < 2fd24407457a6b181ba827705678da70e528dcd0 | ≥ c1420a5dd4dd2a1ffc86965ad1c6f439afb130bc, < 962d684b5dc0741dcd93485d41b450de402d5592 | 6.2

3 vendors · 143 products

References

16 links

Show all 16 references

Vulnerability summary

Advisory lineage

Timeline

Description

CVSS metrics

EPSS trend

Known exploited

Public exploits

Weaknesses

Affected systems

References

Related vulnerabilities