synced 10 MIN AGO
01 Record

CVE-2022-1055

Use after Free in tc_new_tfilter allowing for privilege escalation in Linux Kernel

HighPUBLISHEDCNA: Google
CNA base score8.6 CVSS v4.0CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

02 Description

Use after Free in tc_new_tfilter allowing for privilege escalation in Linux Kernel

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total 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
0.50% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 42.8% of scored records. A rank, not a probability.
NVD base score
8.6 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD analysis status
Analyzed. NVD last modified this record on 2026-08-13.
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
2022-03-29 15:05Z4 YR AGO
Last updated
2026-07-29 13:49Z3 MO AGO
Reserved
2022-03-22
Assigning CNA
Google
Record state
PUBLISHED
Severity
High (CVSS 8.6)
CNA CVSS vector
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
Weaknesses
Data version
5.2
Document digest
ca51eaa6ce1fed5cc954d404ec834b8ffd9c257e1771758fb0b2582760997b6b

05 Affected products

VendorProductVersionsPlatforms
LinuxKernel5.1.0 to < 5.4.177, 5.5.0 to < 5.10.97, 5.11.0 to < 5.15.20, 5.16.0 to < 5.16.6—
linuxlinux_kernel0 to < 5.17_rc3—

06 References

07 Fixed in

AlmaLinux 8

  • bpftool
    Fixed in 4.18.0-425.3.1.el8
  • kernel
    Fixed in 4.18.0-425.3.1.el8
  • kernel-abi-stablelists
    Fixed in 4.18.0-425.3.1.el8
  • kernel-core
    Fixed in 4.18.0-425.3.1.el8
  • kernel-cross-headers
    Fixed in 4.18.0-425.3.1.el8
  • kernel-debug
    Fixed in 4.18.0-425.3.1.el8
  • kernel-debug-core
    Fixed in 4.18.0-425.3.1.el8
  • kernel-debug-devel
    Fixed in 4.18.0-425.3.1.el8
  • kernel-debug-modules
    Fixed in 4.18.0-425.3.1.el8
  • kernel-debug-modules-extra
    Fixed in 4.18.0-425.3.1.el8
  • kernel-devel
    Fixed in 4.18.0-425.3.1.el8
  • kernel-doc
    Fixed in 4.18.0-425.3.1.el8
  • kernel-headers
    Fixed in 4.18.0-425.3.1.el8
  • kernel-modules
    Fixed in 4.18.0-425.3.1.el8
  • kernel-modules-extra
    Fixed in 4.18.0-425.3.1.el8
  • kernel-rt
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-core
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-debug
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-debug-core
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-debug-devel
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-debug-kvm
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-debug-modules
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-debug-modules-extra
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-devel
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-kvm
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-modules
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-modules-extra
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-tools
    Fixed in 4.18.0-425.3.1.el8
  • kernel-tools-libs
    Fixed in 4.18.0-425.3.1.el8
  • kernel-tools-libs-devel
    Fixed in 4.18.0-425.3.1.el8
  • kernel-zfcpdump
    Fixed in 4.18.0-425.3.1.el8
  • kernel-zfcpdump-core
    Fixed in 4.18.0-425.3.1.el8
  • kernel-zfcpdump-devel
    Fixed in 4.18.0-425.3.1.el8
  • kernel-zfcpdump-modules
    Fixed in 4.18.0-425.3.1.el8
  • kernel-zfcpdump-modules-extra
    Fixed in 4.18.0-425.3.1.el8
  • perf
    Fixed in 4.18.0-425.3.1.el8
  • python3-perf
    Fixed in 4.18.0-425.3.1.el8

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • bpftool
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-abi-stablelists
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-core
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-cross-headers
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-debug
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-debug-core
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-debug-devel
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-debug-devel-matched
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-debug-modules
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-debug-modules-extra
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-devel
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-devel-matched
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-doc
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-headers
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-modules
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-modules-extra
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-rt
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-core
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-debug
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-debug-core
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-debug-devel
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-debug-kvm
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-debug-modules
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-debug-modules-extra
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-devel
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-kvm
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-modules
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-modules-extra
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-tools
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-tools-libs
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-tools-libs-devel
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-zfcpdump
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-zfcpdump-core
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-zfcpdump-devel
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-zfcpdump-devel-matched
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-zfcpdump-modules
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-zfcpdump-modules-extra
    Fixed in 5.14.0-70.22.1.el9_0
  • perf
    Fixed in 5.14.0-70.22.1.el9_0
  • python3-perf
    Fixed in 5.14.0-70.22.1.el9_0

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • bpftool
    Fixed in 4.18.0-425.3.1.el8
  • kernel
    Fixed in 4.18.0-425.3.1.el8
  • kernel-abi-stablelists
    Fixed in 4.18.0-425.3.1.el8
  • kernel-core
    Fixed in 4.18.0-425.3.1.el8
  • kernel-cross-headers
    Fixed in 4.18.0-425.3.1.el8
  • kernel-debug
    Fixed in 4.18.0-425.3.1.el8
  • kernel-debug-core
    Fixed in 4.18.0-425.3.1.el8
  • kernel-debug-devel
    Fixed in 4.18.0-425.3.1.el8
  • kernel-debug-modules
    Fixed in 4.18.0-425.3.1.el8
  • kernel-debug-modules-extra
    Fixed in 4.18.0-425.3.1.el8
  • kernel-devel
    Fixed in 4.18.0-425.3.1.el8
  • kernel-doc
    Fixed in 4.18.0-425.3.1.el8
  • kernel-headers
    Fixed in 4.18.0-425.3.1.el8
  • kernel-modules
    Fixed in 4.18.0-425.3.1.el8
  • kernel-modules-extra
    Fixed in 4.18.0-425.3.1.el8
  • kernel-rt
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-core
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-debug
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-debug-core
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-debug-devel
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-debug-kvm
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-debug-modules
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-debug-modules-extra
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-devel
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-kvm
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-modules
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-modules-extra
    Fixed in 4.18.0-425.3.1.rt7.213.el8
  • kernel-tools
    Fixed in 4.18.0-425.3.1.el8
  • kernel-tools-libs
    Fixed in 4.18.0-425.3.1.el8
  • kernel-tools-libs-devel
    Fixed in 4.18.0-425.3.1.el8
  • kernel-zfcpdump
    Fixed in 4.18.0-425.3.1.el8
  • kernel-zfcpdump-core
    Fixed in 4.18.0-425.3.1.el8
  • kernel-zfcpdump-devel
    Fixed in 4.18.0-425.3.1.el8
  • kernel-zfcpdump-modules
    Fixed in 4.18.0-425.3.1.el8
  • kernel-zfcpdump-modules-extra
    Fixed in 4.18.0-425.3.1.el8
  • perf
    Fixed in 4.18.0-425.3.1.el8
  • python3-perf
    Fixed in 4.18.0-425.3.1.el8

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • bpftool
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-abi-stablelists
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-core
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-cross-headers
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-debug
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-debug-core
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-debug-devel
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-debug-devel-matched
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-debug-modules
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-debug-modules-extra
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-devel
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-devel-matched
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-doc
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-headers
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-modules
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-modules-extra
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-rt
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-core
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-debug
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-debug-core
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-debug-devel
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-debug-kvm
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-debug-modules
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-debug-modules-extra
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-devel
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-kvm
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-modules
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-rt-modules-extra
    Fixed in 5.14.0-70.22.1.rt21.94.el9_0
  • kernel-tools
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-tools-libs
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-tools-libs-devel
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-zfcpdump
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-zfcpdump-core
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-zfcpdump-devel
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-zfcpdump-devel-matched
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-zfcpdump-modules
    Fixed in 5.14.0-70.22.1.el9_0
  • kernel-zfcpdump-modules-extra
    Fixed in 5.14.0-70.22.1.el9_0
  • perf
    Fixed in 5.14.0-70.22.1.el9_0
  • python3-perf
    Fixed in 5.14.0-70.22.1.el9_0

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • linux
    Fixed in 5.16.7-1

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

Debian 13

  • linux
    Fixed in 5.16.7-1

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

Debian 14

  • linux
    Fixed in 5.16.7-1

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-aws-5.4
    Fixed in 5.4.0-1071.76~18.04.1
  • linux-azure
    No fix yet
  • linux-azure-5.3
    No fix yet
  • linux-azure-5.4
    Fixed in 5.4.0-1074.77~18.04.1
  • linux-azure-edge
    No fix yet
  • linux-gcp
    No fix yet
  • linux-gcp-5.3
    No fix yet
  • linux-gcp-5.4
    Fixed in 5.4.0-1069.73~18.04.1
  • linux-gke-4.15
    No fix yet
  • linux-gke-5.4
    Fixed in 5.4.0-1067.70~18.04.1
  • linux-gkeop-5.4
    Fixed in 5.4.0-1038.39~18.04.1
  • linux-hwe
    No fix yet
  • linux-hwe-5.4
    Fixed in 5.4.0-107.121~18.04.1
  • linux-hwe-edge
    No fix yet
  • linux-ibm-5.4
    Fixed in 5.4.0-1019.21~18.04.1
  • linux-oem
    No fix yet
  • linux-oracle-5.0
    No fix yet
  • linux-oracle-5.3
    No fix yet
  • linux-oracle-5.4
    Fixed in 5.4.0-1069.75~18.04.1
  • linux-raspi-5.4
    Fixed in 5.4.0-1058.65~18.04.1

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

Ubuntu 20.04 LTS

  • linux
    Fixed in 5.4.0-107.121
  • linux-aws
    Fixed in 5.4.0-1071.76
  • linux-aws-5.11
    No fix yet
  • linux-aws-5.13
    Fixed in 5.13.0-1021.23~20.04.2
  • linux-aws-5.8
    No fix yet
  • linux-azure
    Fixed in 5.4.0-1074.77
  • linux-azure-5.11
    No fix yet
  • linux-azure-5.13
    Fixed in 5.13.0-1021.24~20.04.1
  • linux-azure-5.8
    No fix yet
  • linux-bluefield
    Fixed in 5.4.0-1032.35
  • linux-gcp
    Fixed in 5.4.0-1069.73
  • linux-gcp-5.11
    No fix yet
  • linux-gcp-5.13
    Fixed in 5.13.0-1023.28~20.04.1
  • linux-gcp-5.8
    No fix yet
  • linux-gke
    Fixed in 5.4.0-1067.70
  • linux-gkeop
    Fixed in 5.4.0-1038.39
  • linux-hwe-5.11
    No fix yet
  • linux-hwe-5.13
    Fixed in 5.13.0-39.44~20.04.1
  • linux-hwe-5.8
    No fix yet
  • linux-ibm
    Fixed in 5.4.0-1019.21
  • linux-intel-5.13
    No fix yet
  • linux-intel-iotg-5.15
    Fixed in 5.15.0-1008.11~20.04.1
  • linux-iot
    Fixed in 5.4.0-1004.6
  • linux-kvm
    Fixed in 5.4.0-1061.64
  • linux-oem-5.10
    No fix yet
  • linux-oem-5.13
    No fix yet
  • linux-oem-5.14
    Fixed in 5.14.0-1027.30
  • linux-oem-5.6
    No fix yet
  • linux-oracle
    Fixed in 5.4.0-1069.75
  • linux-oracle-5.11
    No fix yet
  • linux-oracle-5.13
    Fixed in 5.13.0-1025.30~20.04.1
  • linux-oracle-5.8
    No fix yet
  • linux-raspi
    Fixed in 5.4.0-1058.65
  • 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-intel-iot-realtime
    No fix yet
  • linux-realtime
    No fix yet

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

Ubuntu 24.04 LTS

  • linux-raspi-realtime
    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
    Fixed in 5.4.0-1071.76+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-azure-fips
    Fixed in 5.4.0-1074.77+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-fips
    Fixed in 5.4.0-1047.53
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-gcp-fips
    Fixed in 5.4.0-1069.73+fips2
    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 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.

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.