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

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Summary

CVECVE-2022-1055
StatePUBLISHED
AssignerGoogle
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-03-29 15:15:08 UTC
Updated2026-07-29 14:16:26 UTC
DescriptionA use-after-free exists in the Linux Kernel in tc_new_tfilter that could allow a local attacker to gain privilege escalation. The exploit requires unprivileged user namespaces. We recommend upgrading past commit 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5

Risk And Classification

Primary CVSS: v4.0 8.6 HIGH from [email protected]

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

EPSS: 0.005000000 probability, percentile 0.400730000 (date 2026-08-01)

Problem Types: CWE-416 | CWE-416 CWE-416 Use After Free

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary8.6HIGHCVSS: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/C...
4.0CNACVSS8.6HIGHCVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary4.6AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS v4.0 Breakdown

Attack Vector
Local
Attack Complexity
High
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
None
Sub Conf.
High
Sub Integrity
High
Sub Availability
None

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

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:L/AC:L/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 20.04 All All All
Operating System Canonical Ubuntu Linux 21.10 All All All
Operating System Canonical Ubuntu Linux 22.04 All All All
Operating System Fedoraproject Fedora 35 All All All
Operating System Linux Linux Kernel All All All All
Operating System Linux Linux Kernel 5.17 - All All
Operating System Linux Linux Kernel 5.17 rc1 All All
Operating System Linux Linux Kernel 5.17 rc2 All All
Hardware Netapp H300e - All All All
Operating System Netapp H300e Firmware - All All All
Hardware Netapp H300s - All All All
Operating System Netapp H300s Firmware - All All All
Hardware Netapp H410c - All All All
Operating System Netapp H410c Firmware - All All All
Hardware Netapp H410s - All All All
Operating System Netapp H410s Firmware - All All All
Hardware Netapp H500e - All All All
Operating System Netapp H500e Firmware - All All All
Hardware Netapp H500s - All All All
Operating System Netapp H500s Firmware - All All All
Hardware Netapp H700e - All All All
Operating System Netapp H700e Firmware - All All All
Hardware Netapp H700s - All All All
Operating System Netapp H700s Firmware - All All All
Operating System Redhat Enterprise Linux 8.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Kernel affected 5.1.0 5.4.177 semver Not specified
CNA Linux Kernel affected 5.5.0 5.10.97 semver Not specified
CNA Linux Kernel affected 5.11.0 5.15.20 semver Not specified
CNA Linux Kernel affected 5.16.0 5.16.6 semver Not specified
CNA Linux Kernel unaffected 5.17.0 semver Not specified
CNA Linux Kernel unaffected 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5 git Not specified
ADP Linux Linux Kernel affected 5.17_rc3 custom Not specified

References

ReferenceSourceLinkTags
???????? af854a3a-2127-422b-91ae-364da2661108 kernel.dance Exploit, Patch, Third Party Advisory
KASAN: use-after-free Write in mini_qdisc_pair_swap (2) af854a3a-2127-422b-91ae-364da2661108 syzkaller.appspot.com Exploit, Patch, Third Party Advisory
CVE-2022-1055 Linux Kernel Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch, Vendor Advisory
Kernel Live Patch Security Notice LSN-0086-1 ≈ Packet Storm af854a3a-2127-422b-91ae-364da2661108 packetstormsecurity.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159785 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel-container (ELSA-2022-9368)
  • 159788 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2022-9365)
  • 160039 Oracle Enterprise Linux Security Update for kernel (ELSA-2022-6003)
  • 160210 Oracle Enterprise Linux Security Update for kernel (ELSA-2022-7683)
  • 179206 Debian Security Update for linux (CVE-2022-1055)
  • 198721 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5358-1)
  • 198727 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5358-2)
  • 198731 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5368-1)
  • 198740 Ubuntu Security Notification for Linux kernel (BlueField) Vulnerabilities (USN-5377-1)
  • 240600 Red Hat Update for kernel-rt (RHSA-2022:6002)
  • 240604 Red Hat Update for kernel security (RHSA-2022:6003)
  • 240815 Red Hat Update for kernel-rt (RHSA-2022:7444)
  • 240817 Red Hat Update for kernel security (RHSA-2022:7683)
  • 243041 Red Hat Update for kernel security (RHSA-2024:1188)
  • 354279 Amazon Linux Security Advisory for kernel : ALAS2022-2022-039
  • 354468 Amazon Linux Security Advisory for kernel : ALAS2022-2022-185
  • 354542 Amazon Linux Security Advisory for kernel : ALAS-2022-185
  • 355199 Amazon Linux Security Advisory for kernel : ALAS2023-2023-070
  • 376925 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-2022:0125)
  • 610430 Google Android September 2022 Security Patch Missing for Huawei EMUI
  • 610432 Google Pixel Android August 2022 Security Patch Missing
  • 671817 EulerOS Security Update for kernel (EulerOS-SA-2022-1868)
  • 672003 EulerOS Security Update for kernel (EulerOS-SA-2022-2134)
  • 752036 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1183-1)
  • 752042 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1197-1)
  • 753137 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 15 for SLE 15 SP3) (SUSE-SU-2022:1453-1)
  • 753373 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1257-1)
  • 753390 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 14 for SLE 15 SP3) (SUSE-SU-2022:1326-1)
  • 753417 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1163-1)
  • 753427 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1407-1)
  • 753445 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 12 for SLE 15 SP3) (SUSE-SU-2022:1369-1)
  • 900793 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (9217)
  • 901319 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (9217-1)
  • 901965 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (9218-1)
  • 906042 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (9217-2)
  • 906430 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (9218-2)
  • 940634 AlmaLinux Security Update for kernel (ALSA-2022:6003)
  • 940637 AlmaLinux Security Update for kernel-rt (ALSA-2022:6002)
  • 940732 AlmaLinux Security Update for kernel (ALSA-2022:7683)
  • 940766 AlmaLinux Security Update for kernel-rt (ALSA-2022:7444)
  • 960176 Rocky Linux Security Update for kernel-rt (RLSA-2022:7444)
  • 960184 Rocky Linux Security Update for kernel (RLSA-2022:7683)

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