synced 12 MIN AGO
01 Record

CVE-2024-46787

userfaultfd: fix checks for huge PMDs

HighPUBLISHEDCNA: Linux
CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
View raw JSON

02 Description

userfaultfd: fix checks for huge PMDs

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 ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.22% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 12.4% of scored records. A rank, not a probability.
NVD base score
4.7 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-08-04.
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
2024-09-18 07:12Z2 YR AGO
Last updated
2026-08-05 11:38Z2 MO AGO
Reserved
2024-09-11
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
  • CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
Data version
5.2
Document digest
d008218be6ad62e0a4d39d4f539b65ebf276e4fb8dba93cab22b79d2d4f0483b

05 Affected products

VendorProductVersionsPlatforms
LinuxLinuxc1a4de99fada21e2e9251e52cbb51eff5aadc757 to < 3c6b4bcf37845c9359aed926324bed66bdd2448d, c1a4de99fada21e2e9251e52cbb51eff5aadc757 to < 98cc18b1b71e23fe81a5194ed432b20c2d81a01a, c1a4de99fada21e2e9251e52cbb51eff5aadc757 to < 71c186efc1b2cf1aeabfeff3b9bd5ac4c5ac14d8, 4.3—

06 References

07 Fixed in

Debian 12

  • linux
    No fix yet

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

Debian 13

  • linux
    Fixed in 6.10.11-1

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

Debian 14

  • linux
    Fixed in 6.10.11-1

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 6.8.0-1020.22~22.04.1
  • 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 6.8.0-1020.23~22.04.1
  • 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 6.8.0-1019.21~22.04.1
  • 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 6.8.0-50.51~22.04.1
  • linux-ibm
    Fixed in 5.15.0-1079.82
  • linux-ibm-6.8
    Fixed in 6.8.0-1017.17~22.04.1
  • 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 6.8.0-50.51.1~22.04.1
  • 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 6.8.0-1019.21~22.04.1

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 6.8.0-50.51
  • linux-aws
    Fixed in 6.8.0-1020.22
  • linux-azure
    Fixed in 6.8.0-1020.23
  • linux-gcp
    Fixed in 6.8.0-1019.21
  • linux-gke
    Fixed in 6.8.0-1015.19
  • linux-gkeop
    Fixed in 6.8.0-1002.4
  • linux-ibm
    Fixed in 6.8.0-1017.17
  • linux-lowlatency
    Fixed in 6.8.0-50.51.1
  • linux-nvidia
    Fixed in 6.8.0-1019.21
  • linux-nvidia-lowlatency
    Fixed in 6.8.0-1019.21.1
  • linux-oem-6.8
    Fixed in 6.8.0-1018.18
  • linux-oracle
    Fixed in 6.8.0-1017.18
  • linux-raspi
    Fixed in 6.8.0-1016.18
  • linux-riscv
    Fixed in 6.8.0-50.51.1
  • 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 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-aws
    Fixed in 4.4.0-1145.151
    Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro
  • linux-azure
    Fixed in 4.15.0-1190.205~14.04.1
    Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro
  • linux-lts-xenial
    Fixed in 4.4.0-270.304~14.04.1
    Available 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 4.4.0-270.304
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-aws
    Fixed in 4.4.0-1183.198
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-aws-hwe
    Fixed in 4.15.0-1182.195~16.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-azure
    Fixed in 4.15.0-1190.205~16.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-gcp
    Fixed in 4.15.0-1175.192~16.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-hwe
    Fixed in 4.15.0-239.251~16.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-kvm
    Fixed in 4.4.0-1146.157
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-oracle
    Fixed in 4.15.0-1144.155~16.04.1
    Available 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 4.15.0-239.251
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-aws
    Fixed in 4.15.0-1182.195
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-aws-5.4
    Fixed in 5.4.0-1148.158~18.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-azure-4.15
    Fixed in 4.15.0-1190.205
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-azure-5.4
    Fixed in 5.4.0-1153.160~18.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-gcp-4.15
    Fixed in 4.15.0-1175.192
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-gcp-5.4
    Fixed in 5.4.0-1151.160~18.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-hwe-5.4
    Fixed in 5.4.0-219.239~18.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-ibm-5.4
    Fixed in 5.4.0-1094.99~18.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-kvm
    Fixed in 4.15.0-1165.170
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-oracle
    Fixed in 4.15.0-1144.155
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-oracle-5.4
    Fixed in 5.4.0-1146.156~18.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-raspi-5.4
    Fixed in 5.4.0-1131.144~18.04.1
    Available 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 5.4.0-219.239
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-aws
    Fixed in 5.4.0-1148.158
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-aws-5.15
    Fixed in 5.15.0-1087.94~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-azure
    Fixed in 5.4.0-1153.160
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-azure-5.15
    Fixed in 5.15.0-1094.103~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-bluefield
    Fixed in 5.4.0-1107.114
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-gcp
    Fixed in 5.4.0-1151.160
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-gcp-5.15
    Fixed in 5.15.0-1086.95~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-hwe-5.15
    Fixed in 5.15.0-143.153~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-ibm
    Fixed in 5.4.0-1094.99
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-ibm-5.15
    Fixed in 5.15.0-1079.82~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-intel-iotg-5.15
    Fixed in 5.15.0-1083.89~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-iot
    Fixed in 5.4.0-1052.55
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-kvm
    Fixed in 5.4.0-1135.144
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-lowlatency-hwe-5.15
    Fixed in 5.15.0-143.153~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-nvidia-tegra-5.15
    Fixed in 5.15.0-1040.40~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-oracle
    Fixed in 5.4.0-1146.156
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-oracle-5.15
    Fixed in 5.15.0-1084.90~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-raspi
    Fixed in 5.4.0-1131.144
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-riscv-5.15
    Fixed in 5.15.0-1082.86~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-xilinx-zynqmp
    Fixed in 5.4.0-1066.70
    Available 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 4.4.0-1115.122
    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 18.04 LTS

  • linux-aws-fips
    Fixed in 4.15.0-2120.126
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-azure-fips
    Fixed in 4.15.0-2099.105
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-fips
    Fixed in 4.15.0-1137.148
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-gcp-fips
    Fixed in 4.15.0-2083.89
    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 20.04 LTS

  • linux-aws-fips
    Fixed in 5.4.0-1148.158+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-azure-fips
    Fixed in 5.4.0-1154.161+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-fips
    Fixed in 5.4.0-1122.132
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-gcp-fips
    Fixed in 5.4.0-1151.160+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 22.04 LTS

  • linux-aws-fips
    Fixed in 5.15.0-1087.94+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-azure-fips
    Fixed in 5.15.0-1094.103+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-fips
    Fixed in 5.15.0-143.153+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-gcp-fips
    Fixed in 5.15.0-1086.95+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-fips
    Fixed in 6.8.0-78.78+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 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 5.15.0-1080.82
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-realtime
    Fixed in 5.15.0-1087.96
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-realtime-6.8
    Fixed in 6.8.1-1013.14~22.04.1
    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 24.04 LTS

  • linux-raspi-realtime
    Fixed in 6.8.0-2015.16
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-realtime
    Fixed in 6.8.1-1013.14
    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.

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.