CVE-2022-41222: canonical ubuntu_linux Use After Free

Modified

AliasesUBUNTU-CVE-2022-41222DEBIAN-CVE-2022-41222

Published 21-09-2022Last modified 14-10-2026

Vulnerability summary

CVE-2022-41222 is a high (CVSS 7.0) Use After Free vulnerability in canonical ubuntu_linux. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 42.4% of scored vulnerabilities. 1 public exploit is recorded.

Priority

Prioritisepublic exploit

Public exploit (reference, Date unknown)

Source freshness unavailable

How is this decided?

CVSS score

7.0/10

010

High · v3.1 (CVE.org)

EPSS score

0.49%

0%100%

Low · +0.02 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 19 · Related 11

DLA-3173-1 LSN-0091-1 RHSA-2023:0832 RHSA-2023:0839 RHSA-2023:0854 RHSA-2023:1130+13 more

Timeline

21-09-2022
PublishedVulnerability first disclosed.
14-10-2026
Last modifiedVulnerability information updated.

Description

mm/mremap.c in the Linux kernel before 5.13.3 has a use-after-free via a stale TLB because an rmap lock is not held during a PUD move.

CVSS metrics

4 scores · 4 sources · 1 version

v3.17.0

EPSS trend

Probability

0.49%

Chance of exploitation in the next 30 days

Percentile

42%

Versus all other CVEs

30-day change

Increase +0.02 pp

From 0.47% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found

referenceUnverified
Exploit Reference (bugs.chromium.org)
Maturity: unknown

Weaknesses

CWE · root cause

CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu62 products

linux< 5.4.0-132.148
linux-aws< 5.4.0-1089.97
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11All versions (No fix recorded)
linux-aws-5.13All versions (No fix recorded)

linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1089.97~18.04.1
linux-aws-5.8All versions (No fix recorded)
linux-aws-fips< 5.4.0-1089.97+fips1 | All versions (No fix recorded)
linux-azureAll versions (No fix recorded) | < 5.4.0-1095.101
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1095.101~18.04.1
linux-azure-5.8All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fips< 5.4.0-1095.101+fips1 | All versions (No fix recorded)
linux-bluefield< 5.4.0-1050.56
linux-fips< 5.4.0-1065.74 | All versions (No fix recorded)
linux-gcpAll versions (No fix recorded) | < 5.4.0-1093.102
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1093.102~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-fips< 5.4.0-1093.102+fips1 | All versions (No fix recorded)
linux-gke< 5.4.0-1087.94
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.4All versions (No fix recorded)
linux-gkeop< 5.4.0-1057.61
linux-gkeop-5.4All versions (No fix recorded)
linux-hweAll versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13All versions (No fix recorded)
linux-hwe-5.4< 5.4.0-132.148~18.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1037.42
linux-ibm-5.4< 5.4.0-1037.42~18.04.1
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-iot< 5.4.0-1006.8
linux-kvm< 5.4.0-1079.85
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.13All versions (No fix recorded)
linux-oem-5.6All versions (No fix recorded)
linux-oracle< 5.4.0-1087.96
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11All versions (No fix recorded)
linux-oracle-5.13All versions (No fix recorded)
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1087.96~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1074.85
linux-raspi-5.4< 5.4.0-1074.85~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded)
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.8All versions (No fix recorded)

Show all 62

Debian2 products

linux< 5.14.6-1
debian_linuxEOL10.0

Canonical1 product

ubuntu_linuxEOL18.04 | 20.04 | 22.04

Linux1 product

linux_kernel≥ 5.0, < 5.4.211 | ≥ 5.5, < 5.10.137 | ≥ 5.11, < 5.12.18 | ≥ 5.13, < 5.13.3

Netapp1 product

hci_baseboard_management_controllerh300s | h410c | h410s | h500s | h700s

5 vendors · 67 products

References

17 links

cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3REPORTRelease NotesVendor Advisory
bugs.chromium.org/p/project-zero/issues/detail?id=2347REPORTExploitIssue TrackingMailing ListPatchThird Party Advisory
git.kernel.org/cgit/…REPORTPatchVendor Advisory
packetstormsecurity.com/files/168466/Linux-Stable-5.4-5.10-Use-After-Free-Race-Condition.htmlREPORTThird Party AdvisoryVDB Entry
lists.debian.org/debian-lts-announce/2022/11/msg00001.htmlMailing ListThird Party Advisory
security.netapp.com/advisory/ntap-20230214-0008/Third Party Advisory
packetstormsecurity.com/files/171005/Kernel-Live-Patch-Security-Notice-LNS-0091-1.htmlPatchThird Party Advisory
ubuntu.com/security/CVE-2022-41222REPORT
git.kernel.org/linus/97113eb39fa7972722ff490b947d8af023e1f6a2REPORT
ubuntu.com/security/notices/USN-5728-1Advisory

Show all 17 references