CVE-2022-4382: linux linux_kernel Use After Free

Modified

AliasesUBUNTU-CVE-2022-4382DEBIAN-CVE-2022-4382CGA-23c3-j2xh-jvj7+166 more

Published 10-01-2023Last modified 09-04-2025

Vulnerability summary

CVE-2022-4382 is a medium (CVSS 6.4) Use After Free vulnerability in linux linux_kernel. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 42.1% of scored vulnerabilities. 1 public exploit is recorded.

Priority

Routine

Not severe (CVSS 6.4, physical access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

6.4/10

010

Medium · v3.1 (CVE.org)

EPSS score

0.49%

0%100%

Low · +0.01 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 18 · Related 17

MGASA-2023-0087 MGASA-2023-0088 SUSE-SU-2023:0394-1 SUSE-SU-2023:0433-1 SUSE-SU-2023:0488-1 SUSE-SU-2024:3408-1+13 more

Timeline

10-01-2023
PublishedVulnerability first disclosed.
09-04-2025
Last modifiedVulnerability information updated.

Description

A use-after-free flaw caused by a race among the superblock operations in the gadgetfs Linux driver was found. It could be triggered by yanking out a device that is running the gadgetfs side.

CVSS metrics

5 scores · 5 sources · 1 version

v3.16.4

EPSS trend

Probability

0.49%

Chance of exploitation in the next 30 days

Percentile

42%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.48% 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 (openwall.com)
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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: physical access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu85 products

linux< 5.4.0-146.163 | < 5.15.0-69.76
linux-aws< 5.4.0-1099.107 | < 5.15.0-1033.37
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-5.15< 5.15.0-1033.37~20.04.1
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1099.107~18.04.1
linux-aws-5.8All versions (No fix recorded)
linux-aws-fips< 5.4.0-1099.107+fips1 | All versions (No fix recorded)
linux-azureAll versions (No fix recorded) | < 5.4.0-1105.111 | < 5.15.0-1035.42
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15< 5.15.0-1035.42~20.04.1
linux-azure-5.19< 5.19.0-1022.23~22.04.1
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1105.111~18.04.1
linux-azure-5.8All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fde< 5.15.0-1035.42.1
linux-azure-fips< 5.4.0-1105.111+fips1 | All versions (No fix recorded)
linux-bluefield< 5.4.0-1060.66 | < 5.15.0-1015.17
linux-fips< 5.4.0-1074.83 | All versions (No fix recorded)
linux-gcpAll versions (No fix recorded) | < 5.4.0-1102.111 | < 5.15.0-1031.38
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15< 5.15.0-1031.38~20.04.1
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1102.111~18.04.2
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-fips< 5.4.0-1102.111+fips1 | All versions (No fix recorded)
linux-gke< 5.4.0-1096.103 | < 5.15.0-1030.35
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15< 5.15.0-1029.34~20.04.1
linux-gke-5.4All versions (No fix recorded)
linux-gkeop< 5.4.0-1066.70 | < 5.15.0-1017.22
linux-gkeop-5.15< 5.15.0-1017.22~20.04.1
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-5.15< 5.15.0-69.76~20.04.1
linux-hwe-5.19< 5.19.0-38.39~22.04.1
linux-hwe-5.4< 5.4.0-146.163~18.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1046.51 | < 5.15.0-1027.30
linux-ibm-5.4< 5.4.0-1046.51~18.04.1
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtime< 5.15.0-1023.28
linux-intel-iotg< 5.15.0-1027.32
linux-intel-iotg-5.15< 5.15.0-1027.32~20.04.1
linux-iot< 5.4.0-1013.15
linux-kvm< 5.4.0-1088.94 | < 5.15.0-1030.35
linux-lowlatency< 5.15.0-69.76
linux-lowlatency-hwe-5.15< 5.15.0-69.76~20.04.1
linux-lowlatency-hwe-5.19< 5.19.0-1021.22~22.04.1
linux-nvidia< 5.15.0-1023.23
linux-nvidia-tegra-5.15< 5.15.0-1014.14~20.04.1
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.13All versions (No fix recorded)
linux-oem-5.14All versions (No fix recorded)
linux-oem-5.17< 5.17.0-1030.31
linux-oem-5.6All versions (No fix recorded)
linux-oem-6.0< 6.0.0-1014.14
linux-oem-6.1< 6.1.0-1008.8
linux-oracle< 5.4.0-1098.107 | < 5.15.0-1032.38
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-5.15< 5.15.0-1032.38~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1098.107~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1082.93 | < 5.15.0-1026.28
linux-raspi-5.4< 5.4.0-1082.93~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1034.37
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1030.34~20.04.1
linux-riscv-5.8All versions (No fix recorded)
linux-xilinx-zynqmp< 5.4.0-1023.27

Show all 85

Chainguard83 products

hyperv-daemons-6.18All versions (No fix recorded)
hyperv-daemons-genericAll versions (No fix recorded)
linux-aws-6.12All versions (No fix recorded) | < 6.12.65-r0
linux-aws-6.12-boot-installedAll versions (No fix recorded)
linux-aws-6.12-fips-boot-installedAll versions (No fix recorded)

linux-aws-6.12-headersAll versions (No fix recorded)
linux-aws-6.12-modulesAll versions (No fix recorded)
linux-aws-6.18All versions (No fix recorded) | < 6.18.10-r0
linux-aws-6.18-boot-installedAll versions (No fix recorded)
linux-aws-6.18-fips-boot-installedAll versions (No fix recorded)
linux-aws-6.18-headersAll versions (No fix recorded)
linux-aws-6.18-modulesAll versions (No fix recorded)
linux-aws-generic< 6.18.5-r0 | All versions (No fix recorded)
linux-aws-generic-boot-installedAll versions (No fix recorded)
linux-aws-generic-fips-boot-installedAll versions (No fix recorded)
linux-aws-generic-headersAll versions (No fix recorded)
linux-aws-generic-modulesAll versions (No fix recorded)
linux-azure-6.12< 6.12.65-r1 | All versions (No fix recorded)
linux-azure-6.18All versions (No fix recorded)
linux-azure-6.18-boot-installedAll versions (No fix recorded)
linux-azure-6.18-fips-boot-installedAll versions (No fix recorded)
linux-azure-6.18-headersAll versions (No fix recorded)
linux-azure-6.18-modulesAll versions (No fix recorded)
linux-azure-generic< 6.18.5-r0 | All versions (No fix recorded)
linux-azure-generic-boot-installedAll versions (No fix recorded)
linux-azure-generic-fips-boot-installedAll versions (No fix recorded)
linux-azure-generic-headersAll versions (No fix recorded)
linux-azure-generic-modulesAll versions (No fix recorded)
linux-desktop-6.18All versions (No fix recorded)
linux-desktop-6.18-bootcAll versions (No fix recorded)
linux-desktop-6.18-bootc-boot-installedAll versions (No fix recorded)
linux-desktop-6.18-headersAll versions (No fix recorded)
linux-desktop-6.18-modulesAll versions (No fix recorded)
linux-desktop-7.2All versions (No fix recorded)
linux-desktop-7.2-bootcAll versions (No fix recorded)
linux-desktop-7.2-bootc-boot-installedAll versions (No fix recorded)
linux-desktop-7.2-headersAll versions (No fix recorded)
linux-desktop-7.2-modulesAll versions (No fix recorded)
linux-firecracker-6.18All versions (No fix recorded)
linux-gcp-6.12< 6.12.65-r0 | All versions (No fix recorded)
linux-gcp-6.18All versions (No fix recorded) | < 6.18.10-r0
linux-gcp-6.18-boot-installedAll versions (No fix recorded)
linux-gcp-6.18-fips-boot-installedAll versions (No fix recorded)
linux-gcp-6.18-headersAll versions (No fix recorded)
linux-gcp-6.18-modulesAll versions (No fix recorded)
linux-gcp-generic< 6.18.5-r0 | All versions (No fix recorded)
linux-gcp-generic-boot-installedAll versions (No fix recorded)
linux-gcp-generic-fips-boot-installedAll versions (No fix recorded)
linux-gcp-generic-headersAll versions (No fix recorded)
linux-gcp-generic-modulesAll versions (No fix recorded)
linux-microvm-6.18All versions (No fix recorded)
linux-microvm-6.18-image-compressedAll versions (No fix recorded)
linux-microvm-6.18-image-uncompressedAll versions (No fix recorded)
linux-microvm-6.18-loadpin-testAll versions (No fix recorded)
linux-microvm-6.18-modulesAll versions (No fix recorded)
linux-microvm-7.3All versions (No fix recorded)
linux-microvm-7.3-image-compressedAll versions (No fix recorded)
linux-microvm-7.3-image-uncompressedAll versions (No fix recorded)
linux-microvm-7.3-modulesAll versions (No fix recorded)
linux-qemu-6.12< 6.12.71-r0
linux-qemu-6.18< 6.18.10-r0
linux-qemu-generic< 6.18.5-r0 | All versions (No fix recorded)
linux-qemu-generic-bootc-boot-installed< 6.18.5-r0
linux-qemu-melange< 6.18.16-r0
linux-qemu-rc< 6.19_rc1-r2 | < 6.19_rc2-r0 | < 6.18_rc5-r0 | < 6.18_rc7-r2 | < 6.19_rc3-r0 | < 6.19_rc5-r0 | < 6.19_rc1-r1 | All versions (No fix recorded) | < 6.19_rc1-r0 | < 6.18_rc7-r3 | < 6.18_rc5-r1 | < 6.19_rc4-r0 | < 6.18_rc6-r0
linux-qemu-rc-boot-installedAll versions (No fix recorded)
linux-qemu-rc-fips-boot-installedAll versions (No fix recorded)
linux-qemu-rc-headersAll versions (No fix recorded)
linux-qemu-rc-modulesAll versions (No fix recorded)
linux-raspberry-piAll versions (No fix recorded)
linux-raspberry-pi-4All versions (No fix recorded)
linux-raspberry-pi-4-boot-configurationAll versions (No fix recorded)
linux-raspberry-pi-4-bootcAll versions (No fix recorded)
linux-raspberry-pi-boot-configurationAll versions (No fix recorded)
linux-raspberry-pi-bootcAll versions (No fix recorded)
linux-server-7.2All versions (No fix recorded)
linux-server-7.2-bootcAll versions (No fix recorded)
linux-server-7.2-bootc-boot-installedAll versions (No fix recorded)
linux-server-7.2-headersAll versions (No fix recorded)
linux-server-7.2-modulesAll versions (No fix recorded)
linux-vmware-6.12< 6.12.71-r0
linux-vmware-6.18< 6.18.10-r0
linux-vmware-genericAll versions (No fix recorded) | < 6.18.5-r0

Show all 83

Debian1 product

linux< 6.1.8-1

Linux1 product

linux_kernelna

4 vendors · 170 products

References

19 links

www.openwall.com/lists/oss-security/2022/12/14/5AdvisoryARTICLEEVIDENCEFIXExploitMailing ListPatchThird Party Advisory
ubuntu.com/security/CVE-2022-4382REPORT
www.openwall.com/lists/oss-security/2022/12/13/1REPORT
lore.kernel.org/linux-usb/CAO3qeMVzXDP-JU6v1u5Ags6Q-bb35kg3=C6d04DjzA9ffa5x1g@mail.gmail.com/T/REPORT
lore.kernel.org/linux-usb/Y6XCPXBpn3tmjdCC@rowland.harvard.edu/REPORT
ubuntu.com/security/notices/USN-5970-1Advisory
ubuntu.com/security/notices/USN-5978-1Advisory
ubuntu.com/security/notices/USN-5979-1Advisory
ubuntu.com/security/notices/USN-5980-1Advisory
ubuntu.com/security/notices/USN-5982-1Advisory

Show all 19 references

ubuntu.com/security/notices/USN-5985-1Advisory
ubuntu.com/security/notices/USN-5987-1Advisory
ubuntu.com/security/notices/USN-6004-1Advisory
ubuntu.com/security/notices/USN-6020-1Advisory
ubuntu.com/security/notices/USN-6031-1Advisory
ubuntu.com/security/notices/USN-6032-1Advisory
ubuntu.com/security/notices/USN-6151-1Advisory
www.cve.org/CVERecord?id=CVE-2022-4382REPORT
security-tracker.debian.org/tracker/CVE-2022-4382Advisory