synced 4 MIN AGO
01 Record

CVE-2026-74284

net/sched: sch_hfsc: Don't make class passive twice

UnratedPUBLISHEDCNA: Linux
CNA base scoreUnratedNo CNA CVSS vector

02 Description

net/sched: sch_hfsc: Don't make class passive twice

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.21% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 11.9% of scored records. A rank, not a probability.
NVD base score
The NVD has published no score for this record
NVD CVSS vector
No NVD score to derive
NVD analysis status
Received. NVD last modified this record on 2026-08-17.
Red Hat severity
Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-08-15 05:57Z2 MO AGO
Last updated
2026-08-17 05:16Z2 MO AGO
Reserved
2026-08-15
Assigning CNA
Linux
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
No CWE assigned
Data version
5.2
Document digest
53a3f7db06b8fea832e124c3e054f4605b408b65c92985ad1d2b3e23198a1910

05 Affected products

VendorProductVersionsPlatforms
LinuxLinux72c61ffbeeb8c50f6d4d70c65d3283aa1bac57a7 to < a425c82ff06cda5165e0de3de8c2a445ec1f863e, a5efc95a33bd4fcb879250852828cc58c7862970 to < fc973ecd1a079b9a87c360478542f3a56dea085b, 0475c85426b18eccdcb7f9fb58d8f8e9c6c58c87 to < 15720cd8fa3fc625146128f89a8e11b0449a20a7, 9030a91235ae4845ec71902c3e0cecfc9ed1f2df to < b2a017bfcf565721918ec7355a373911d2f2a227, d06476714d2819b550e0cc39222347e2c8941c9d to < 9221a594c72a1446137926d4c2aa04e345f798dc, 51eb3b65544c9efd6a1026889ee5fb5aa62da3bb to < 66dbb13eeb2fc339f8f548a9076be4c1a94857b0, 51eb3b65544c9efd6a1026889ee5fb5aa62da3bb to < 3a49bbae676fef1ffe548971e6229ae2adeb9d10, 51eb3b65544c9efd6a1026889ee5fb5aa62da3bb to < 90b662ea25f5e83bb3b8ccec5b93ced810b92fb8, 9a5fd5c2f4d4afdd5e405083ee53e0789ce76956, c1175c4ad01dbc9c979d099861fa90a754f72059, 5.10.241 to < 5.10.261, 5.15.190 to < 5.15.212, 6.1.138 to < 6.1.178, 6.6.90 to < 6.6.145, 6.12.28 to < 6.12.97, 5.4.297 to < 5.5, 6.14.6 to < 6.15, 6.15—

06 References

07 Fixed in

Debian 12

  • linux
    Fixed in 6.1.180-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • linux
    Fixed in 6.12.100-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • linux
    Fixed in 7.1.5-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • linux-hwe-edge
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • linux-aws-5.0
    No fix yet
  • linux-aws-5.3
    No fix yet
  • linux-azure
    No fix yet
  • linux-azure-5.3
    No fix yet
  • linux-azure-edge
    No fix yet
  • linux-gcp
    No fix yet
  • linux-gcp-5.3
    No fix yet
  • linux-gke-4.15
    No fix yet
  • linux-gke-5.4
    No fix yet
  • linux-gkeop-5.4
    No fix yet
  • linux-hwe
    No fix yet
  • linux-hwe-edge
    No fix yet
  • linux-oem
    No fix yet
  • linux-oracle-5.0
    No fix yet
  • linux-oracle-5.3
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • linux-aws-5.11
    No fix yet
  • linux-aws-5.13
    No fix yet
  • linux-aws-5.8
    No fix yet
  • linux-azure-5.11
    No fix yet
  • linux-azure-5.13
    No fix yet
  • linux-azure-5.8
    No fix yet
  • linux-azure-fde
    No fix yet
  • linux-gcp-5.11
    No fix yet
  • linux-gcp-5.13
    No fix yet
  • linux-gcp-5.8
    No fix yet
  • linux-gke
    No fix yet
  • linux-gke-5.15
    No fix yet
  • linux-gkeop
    No fix yet
  • linux-gkeop-5.15
    No fix yet
  • linux-hwe-5.11
    No fix yet
  • linux-hwe-5.13
    No fix yet
  • linux-hwe-5.8
    No fix yet
  • linux-intel-5.13
    No fix yet
  • linux-oem-5.10
    No fix yet
  • linux-oem-5.13
    No fix yet
  • linux-oem-5.14
    No fix yet
  • linux-oem-5.6
    No fix yet
  • linux-oracle-5.11
    No fix yet
  • linux-oracle-5.13
    No fix yet
  • linux-oracle-5.8
    No fix yet
  • linux-raspi2
    No fix yet
  • linux-riscv
    No fix yet
  • linux-riscv-5.11
    No fix yet
  • linux-riscv-5.8
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • linux
    Fixed in 5.15.0-198.208
  • linux-allwinner-5.19
    No fix yet
  • linux-aws
    Fixed in 5.15.0-1117.124
  • linux-aws-5.19
    No fix yet
  • linux-aws-6.2
    No fix yet
  • linux-aws-6.5
    No fix yet
  • linux-aws-6.8
    No fix yet
  • linux-azure
    Fixed in 5.15.0-1123.132
  • linux-azure-5.19
    No fix yet
  • linux-azure-6.2
    No fix yet
  • linux-azure-6.5
    No fix yet
  • linux-azure-6.8
    No fix yet
  • linux-azure-fde
    Fixed in 5.15.0-1122.131
  • linux-azure-fde-5.19
    No fix yet
  • linux-azure-fde-6.2
    No fix yet
  • linux-azure-fde-6.8
    No fix yet
  • linux-gcp
    Fixed in 5.15.0-1118.128
  • linux-gcp-5.19
    No fix yet
  • linux-gcp-6.2
    No fix yet
  • linux-gcp-6.5
    No fix yet
  • linux-gcp-6.8
    No fix yet
  • linux-gke
    Fixed in 5.15.0-1113.119
  • linux-gkeop
    Fixed in 5.15.0-1100.108
  • linux-hwe-5.19
    No fix yet
  • linux-hwe-6.2
    No fix yet
  • linux-hwe-6.5
    No fix yet
  • linux-hwe-6.8
    No fix yet
  • linux-ibm
    Fixed in 5.15.0-1111.115
  • linux-ibm-6.8
    No fix yet
  • linux-intel-iot-realtime
    No fix yet
  • linux-intel-iotg
    Fixed in 5.15.0-1112.118
  • linux-kvm
    Fixed in 5.15.0-1109.114
  • linux-lowlatency
    Fixed in 5.15.0-195.205
  • linux-lowlatency-hwe-5.19
    No fix yet
  • linux-lowlatency-hwe-6.2
    No fix yet
  • linux-lowlatency-hwe-6.5
    No fix yet
  • linux-lowlatency-hwe-6.8
    No fix yet
  • linux-nvidia
    Fixed in 5.15.0-1112.113
  • linux-nvidia-6.2
    No fix yet
  • linux-nvidia-6.5
    No fix yet

20 further packages in Ubuntu 22.04 LTS not shown (first 40 listed).

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • linux
    Fixed in 6.8.0-147.147
  • linux-aws
    Fixed in 6.8.0-1067.70
  • linux-aws-6.14
    No fix yet
  • linux-aws-6.17
    No fix yet
  • linux-aws-7.0
    Fixed in 7.0.0-1014.14~24.04.1
  • linux-azure
    Fixed in 6.8.0-1071.79
  • linux-azure-6.11
    No fix yet
  • linux-azure-6.14
    No fix yet
  • linux-azure-6.17
    No fix yet
  • linux-azure-7.0
    Fixed in 7.0.0-1017.17~24.04.1
  • linux-azure-fde
    Fixed in 6.8.0-1069.76
  • linux-azure-fde-6.14
    No fix yet
  • linux-azure-fde-6.17
    No fix yet
  • linux-azure-fde-7.0
    Fixed in 7.0.0-1016.16~24.04.1
  • linux-azure-nvidia
    No fix yet
  • linux-azure-nvidia-6.14
    No fix yet
  • linux-gcp
    Fixed in 6.8.0-1071.79
  • linux-gcp-6.11
    No fix yet
  • linux-gcp-6.14
    No fix yet
  • linux-gcp-6.17
    No fix yet
  • linux-gcp-7.0
    Fixed in 7.0.0-1014.14~24.04.1
  • linux-gke
    Fixed in 6.8.0-1066.74
  • linux-gkeop
    Fixed in 6.8.0-1052.56
  • linux-hwe-6.11
    No fix yet
  • linux-hwe-6.14
    No fix yet
  • linux-hwe-6.17
    No fix yet
  • linux-hwe-7.0
    Fixed in 7.0.0-38.38~24.04.4
  • linux-ibm
    Fixed in 6.8.0-1067.68
  • linux-lowlatency
    Fixed in 6.8.0-147.147.1
  • linux-lowlatency-hwe-6.11
    No fix yet
  • linux-nvidia
    No fix yet
  • linux-nvidia-6.11
    No fix yet
  • linux-nvidia-6.17
    No fix yet
  • linux-nvidia-7.0
    No fix yet
  • linux-nvidia-lowlatency
    No fix yet
  • linux-nvidia-tegra
    No fix yet
  • linux-oem-6.11
    No fix yet
  • linux-oem-6.14
    No fix yet
  • linux-oem-6.17
    No fix yet
  • linux-oem-6.8
    No fix yet

12 further packages in Ubuntu 24.04 LTS not shown (first 40 listed).

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

  • linux
    Fixed in 7.0.0-38.38
  • linux-aws
    Fixed in 7.0.0-1014.14
  • linux-azure
    Fixed in 7.0.0-1017.17
  • linux-azure-fde
    Fixed in 7.0.0-1016.16
  • linux-gcp
    Fixed in 7.0.0-1014.14
  • linux-gke
    Fixed in 7.0.0-1008.9
  • linux-ibm
    Fixed in 7.0.0-1015.15
  • linux-nvidia
    No fix yet
  • linux-nvidia-bos
    No fix yet
  • linux-oem-7.0
    Fixed in 7.0.0-1015.15
  • linux-oracle
    Fixed in 7.0.0-1013.13
  • linux-raspi
    No fix yet
  • linux-realtime
    Fixed in 7.0.0-38.38.1
  • linux-riscv
    Fixed in 7.0.0-38.38.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Nvidia-BlueField 22.04 LTS

  • linux-bluefield
    Fixed in 5.15.0-1101.103

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Nvidia-BlueField 24.04 LTS

  • linux-bluefield
    Fixed in 6.8.0-1033.38

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 14.04 LTS

  • linux-aws
    No fix yet
  • linux-azure
    No fix yet
  • linux-lts-xenial
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • linux
    No fix yet
  • linux-aws
    No fix yet
  • linux-aws-hwe
    No fix yet
  • linux-azure
    No fix yet
  • linux-gcp
    No fix yet
  • linux-hwe
    No fix yet
  • linux-kvm
    No fix yet
  • linux-oracle
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • linux
    No fix yet
  • linux-aws
    No fix yet
  • linux-aws-5.4
    No fix yet
  • linux-azure-4.15
    No fix yet
  • linux-azure-5.4
    No fix yet
  • linux-gcp-4.15
    No fix yet
  • linux-gcp-5.4
    No fix yet
  • linux-hwe-5.4
    No fix yet
  • linux-ibm-5.4
    No fix yet
  • linux-kvm
    No fix yet
  • linux-oracle
    No fix yet
  • linux-oracle-5.4
    No fix yet
  • linux-raspi-5.4
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 20.04 LTS

  • linux
    No fix yet
  • linux-aws
    No fix yet
  • linux-aws-5.15
    Fixed in 5.15.0-1117.124~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-azure
    No fix yet
  • linux-azure-5.15
    Fixed in 5.15.0-1123.132~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-azure-fde-5.15
    Fixed in 5.15.0-1122.131~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-bluefield
    No fix yet
  • linux-gcp
    No fix yet
  • linux-gcp-5.15
    Fixed in 5.15.0-1118.128~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-hwe-5.15
    Fixed in 5.15.0-198.208~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-ibm
    No fix yet
  • linux-ibm-5.15
    Fixed in 5.15.0-1111.115~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-intel-iotg-5.15
    Fixed in 5.15.0-1112.118~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-iot
    No fix yet
  • linux-kvm
    No fix yet
  • linux-lowlatency-hwe-5.15
    Fixed in 5.15.0-195.205~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-nvidia-tegra-5.15
    No fix yet
  • linux-oracle
    No fix yet
  • linux-oracle-5.15
    Fixed in 5.15.0-1114.120~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-raspi
    No fix yet
  • linux-riscv-5.15
    Fixed in 5.15.0-1111.115~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-xilinx-zynqmp
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro FIPS-updates 16.04 LTS

  • linux-fips
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro FIPS-updates 18.04 LTS

  • linux-aws-fips
    No fix yet
  • linux-azure-fips
    No fix yet
  • linux-fips
    No fix yet
  • linux-gcp-fips
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro FIPS-updates 20.04 LTS

  • linux-aws-fips
    No fix yet
  • linux-azure-fips
    No fix yet
  • linux-fips
    No fix yet
  • linux-gcp-fips
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro FIPS-updates 22.04 LTS

  • linux-aws-fips
    Fixed in 5.15.0-1117.124+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-azure-fips
    Fixed in 5.15.0-1123.132+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-fips
    Fixed in 5.15.0-198.208+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-gcp-fips
    Fixed in 5.15.0-1118.128+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro FIPS-updates 24.04 LTS

  • linux-aws-fips
    Fixed in 6.8.0-1067.70+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-azure-fips
    Fixed in 6.8.0-1071.79+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-fips
    Fixed in 6.8.0-147.147+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-gcp-fips
    Fixed in 6.8.0-1071.79+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro Realtime 22.04 LTS

  • linux-intel-iot-realtime
    Fixed in 5.15.0-1109.111
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-realtime
    Fixed in 5.15.0-1116.125
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-realtime-6.8
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro Realtime 24.04 LTS

  • linux-raspi-realtime
    No fix yet
  • linux-realtime
    Fixed in 6.8.1-1062.63
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-realtime-6.14
    No fix yet
  • linux-realtime-6.17
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.