CVE-2025-37798
codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog()
02 Description
codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog()
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.22% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 13.4% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-10-15.
- Red Hat severity
- Moderate. 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
- 2025-05-02 14:16Z1 YR AGO
- Last updated
- 2026-10-15 21:51Z13 DAYS AGO
- Reserved
- 2025-04-16
- Assigning CNA
- Linux
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.8)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- No CWE assigned
- Data version
- 5.2
- Document digest
- 6f3054cb9e4cef765ea019bee726442f3d554b463bf59bd410706d58be97488a
05 Affected products
06 References
- git.kernel.orghttps://git.kernel.org/stable/c/7a742a9506849d1c1aa71e36c89855ceddc7d58e
- git.kernel.orghttps://git.kernel.org/stable/c/cc71a757da78dd4aa1b4a9b19cb011833730ccf2
- git.kernel.orghttps://git.kernel.org/stable/c/eda741fe155ddf5ecd2dd3bfbd4fc3c0c7dbb450
- git.kernel.orghttps://git.kernel.org/stable/c/829c49b6b2ff45b043739168fd1245e4e1a91a30
- git.kernel.orghttps://git.kernel.org/stable/c/2f9761a94bae33d26e6a81b31b36e7d776d93dc1
- git.kernel.orghttps://git.kernel.org/stable/c/4d55144b12e742404bb3f8fee6038bafbf45619d
- git.kernel.orghttps://git.kernel.org/stable/c/e73c838c80dccb9e4f19becc11d9f3cb4a27d483
- git.kernel.orghttps://git.kernel.org/stable/c/a57fe60ef4cf96bfbb6b58397ec28bdb5a5c6b31
- git.kernel.orghttps://git.kernel.org/stable/c/342debc12183b51773b3345ba267e9263bdfaaef
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
07 Fixed in
Debian 12
- linux Fixed in 6.1.135-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 6.12.25-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 6.12.25-1
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 5.15.0-143.153
- linux-allwinner-5.19 No fix yet
- linux-aws Fixed in 5.15.0-1087.94
- 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 Fixed in 6.8.0-1031.33~22.04.1
- linux-azure Fixed in 5.15.0-1092.101
- 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 Fixed in 6.8.0-1031.36~22.04.1
- linux-azure-fde Fixed in 5.15.0-1092.101.1
- linux-azure-fde-5.19 No fix yet
- linux-azure-fde-6.2 No fix yet
- linux-gcp Fixed in 5.15.0-1086.95
- 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 Fixed in 6.8.0-1032.34~22.04.1
- linux-gke Fixed in 5.15.0-1084.90
- linux-gkeop Fixed in 5.15.0-1069.77
- 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 Fixed in 6.8.0-64.67~22.04.1
- linux-ibm Fixed in 5.15.0-1079.82
- linux-ibm-6.8 Fixed in 6.8.0-1028.28~22.04.1
- linux-intel-iot-realtime No fix yet
- linux-intel-iotg Fixed in 5.15.0-1082.88
- linux-kvm Fixed in 5.15.0-1083.88
- linux-lowlatency Fixed in 5.15.0-143.153
- 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 Fixed in 6.8.0-63.66.1~22.04.1
- linux-nvidia Fixed in 5.15.0-1081.82
- linux-nvidia-6.2 No fix yet
- linux-nvidia-6.5 No fix yet
- linux-nvidia-6.8 Fixed in 6.8.0-1030.33~22.04.1
19 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 6.8.0-63.66
- linux-aws Fixed in 6.8.0-1031.33
- linux-azure Fixed in 6.8.0-1031.36
- linux-azure-6.11 Fixed in 6.11.0-1018.18~24.04.1
- linux-azure-nvidia Fixed in 6.8.0-1019.20
- linux-gcp Fixed in 6.8.0-1032.34
- linux-gcp-6.11 Fixed in 6.11.0-1017.17~24.04.1
- linux-gke Fixed in 6.8.0-1027.31
- linux-gkeop Fixed in 6.8.0-1014.16
- linux-hwe-6.11 Fixed in 6.11.0-29.29~24.04.1
- linux-ibm Fixed in 6.8.0-1028.28
- linux-lowlatency Fixed in 6.8.0-63.66.1
- linux-lowlatency-hwe-6.11 Fixed in 6.11.0-1016.17~24.04.1
- linux-nvidia Fixed in 6.8.0-1030.33
- linux-nvidia-6.11 Fixed in 6.11.0-1012.12
- linux-nvidia-lowlatency Fixed in 6.8.0-1030.33.1
- linux-nvidia-tegra Fixed in 6.8.0-1008.8
- linux-oem-6.11 Fixed in 6.11.0-1025.25
- linux-oem-6.8 Fixed in 6.8.0-1030.30
- linux-oracle Fixed in 6.8.0-1028.29
- linux-raspi Fixed in 6.8.0-1030.34
- linux-raspi-realtime No fix yet
- linux-realtime No fix yet
- linux-riscv No fix yet
- linux-xilinx Fixed in 6.8.0-1017.18
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- linux-azure-fde No fix yet
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 5.15.0-1070.72
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 No fix yet
- linux-aws Fixed in 4.4.0-1145.151Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1190.205~14.04.1Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro
- linux-lts-xenial Fixed in 4.4.0-270.304~14.04.1Available with Ubuntu Pro with Legacy support add-on: 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 16.04 LTS
- linux Fixed in 4.4.0-270.304Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-aws Fixed in 4.4.0-1183.198Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-aws-hwe Fixed in 4.15.0-1182.195~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1190.205~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-gcp Fixed in 4.15.0-1175.192~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-hwe Fixed in 4.15.0-239.251~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-kvm Fixed in 4.4.0-1146.157Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-oracle Fixed in 4.15.0-1144.155~16.04.1Available with Ubuntu Pro (Infra-only): 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 18.04 LTS
- linux Fixed in 4.15.0-239.251Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-aws Fixed in 4.15.0-1182.195Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-aws-5.4 Fixed in 5.4.0-1148.158~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure-4.15 Fixed in 4.15.0-1190.205Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure-5.4 Fixed in 5.4.0-1153.160~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-gcp-4.15 Fixed in 4.15.0-1175.192Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-gcp-5.4 Fixed in 5.4.0-1151.160~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-hwe-5.4 Fixed in 5.4.0-219.239~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-ibm-5.4 Fixed in 5.4.0-1094.99~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-kvm Fixed in 4.15.0-1165.170Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-oracle Fixed in 4.15.0-1144.155Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-oracle-5.4 Fixed in 5.4.0-1146.156~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-raspi-5.4 Fixed in 5.4.0-1131.144~18.04.1Available with Ubuntu Pro (Infra-only): 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 20.04 LTS
- linux Fixed in 5.4.0-219.239Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-aws Fixed in 5.4.0-1148.158Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-aws-5.15 Fixed in 5.15.0-1087.94~20.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 5.4.0-1153.160Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure-5.15 Fixed in 5.15.0-1094.103~20.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-bluefield Fixed in 5.4.0-1107.114Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-gcp Fixed in 5.4.0-1151.160Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-gcp-5.15 Fixed in 5.15.0-1086.95~20.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-hwe-5.15 Fixed in 5.15.0-143.153~20.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-ibm Fixed in 5.4.0-1094.99Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-ibm-5.15 Fixed in 5.15.0-1079.82~20.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-intel-iotg-5.15 Fixed in 5.15.0-1083.89~20.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-iot Fixed in 5.4.0-1052.55Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-kvm Fixed in 5.4.0-1135.144Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-lowlatency-hwe-5.15 Fixed in 5.15.0-143.153~20.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-nvidia-tegra-5.15 Fixed in 5.15.0-1040.40~20.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-oracle Fixed in 5.4.0-1146.156Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-oracle-5.15 Fixed in 5.15.0-1084.90~20.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-raspi Fixed in 5.4.0-1131.144Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-riscv-5.15 Fixed in 5.15.0-1082.86~20.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-xilinx-zynqmp Fixed in 5.4.0-1066.70Available with Ubuntu Pro (Infra-only): 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-preview 22.04 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 16.04 LTS
- linux-fips Fixed in 4.4.0-1115.122Available 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 18.04 LTS
- linux-aws-fips Fixed in 4.15.0-2120.126Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 4.15.0-2099.105Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 4.15.0-1137.148Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 4.15.0-2083.89Available 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 20.04 LTS
- linux-aws-fips Fixed in 5.4.0-1148.158+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 5.4.0-1154.161+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 5.4.0-1122.132Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 5.4.0-1151.160+fips1Available 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 22.04 LTS
- linux-aws-fips Fixed in 5.15.0-1087.94+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 5.15.0-1094.103+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 5.15.0-143.153+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 5.15.0-1086.95+fips1Available 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-fips Fixed in 6.8.0-78.78+fips1Available 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 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 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 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 Realtime 22.04 LTS
- linux-intel-iot-realtime Fixed in 5.15.0-1080.82Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-realtime Fixed in 5.15.0-1087.96Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-realtime-6.8 Fixed in 6.8.1-1024.25~22.04.1Available 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 24.04 LTS
- linux-raspi-realtime Fixed in 6.8.0-2025.26Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-realtime Fixed in 6.8.1-1024.25Available 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.
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.