CVE-2022-4378: linux linux_kernel Incorrect Calculation of Buffer Size

Modified

AliasesRHSA-2023:0944RHSA-2023:0945RHSA-2023:1101+9 more

Published 05-01-2023Last modified 10-04-2025

Vulnerability summary

CVE-2022-4378 is a high (CVSS 7.8) Incorrect Calculation of Buffer Size vulnerability in linux linux_kernel. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 38.2% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

7.8/10

010

High · v3.1 (CVE.org)

EPSS score

0.44%

0%100%

Low · +0.01 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 76 · Related 52

DLA-3244-1 DLA-3245-1 LSN-0092-1 MGASA-2022-0477 MGASA-2022-0478 RHSA-2023:0856+70 more

Timeline

05-01-2023
PublishedVulnerability first disclosed.
10-04-2025
Last modifiedVulnerability information updated.

Description

A stack overflow flaw was found in the Linux kernel's SYSCTL subsystem in how a user changes certain kernel parameters and variables. This flaw allows a local user to crash or potentially escalate their privileges on the system.

CVSS metrics

5 scores · 5 sources · 1 version

v3.17.8

EPSS trend

Probability

0.44%

Chance of exploitation in the next 30 days

Percentile

38%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.43% 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

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

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

Redhat77 products

bpftool< 0:3.10.0-1062.71.1.el7 | < 0:4.18.0-193.100.1.el8_2 | < 0:3.10.0-957.100.1.el7
bpftool-debuginfo< 0:3.10.0-1062.71.1.el7 | < 0:4.18.0-193.100.1.el8_2
kernel< 0:3.10.0-1062.71.1.el7 | < 0:4.18.0-193.100.1.el8_2 | < 0:3.10.0-957.100.1.el7 | < 0:3.10.0-693.107.1.el7 | < 0:2.6.32-754.50.1.el6
kernel-abi-whitelists< 0:3.10.0-1062.71.1.el7 | < 0:4.18.0-193.100.1.el8_2 | < 0:3.10.0-957.100.1.el7 | < 0:3.10.0-693.107.1.el7 | < 0:2.6.32-754.50.1.el6
kernel-bootwrapper< 0:3.10.0-1062.71.1.el7

kernel-core< 0:4.18.0-193.100.1.el8_2
kernel-debug< 0:3.10.0-1062.71.1.el7 | < 0:4.18.0-193.100.1.el8_2 | < 0:3.10.0-957.100.1.el7 | < 0:3.10.0-693.107.1.el7 | < 0:2.6.32-754.50.1.el6
kernel-debug-core< 0:4.18.0-193.100.1.el8_2
kernel-debug-debuginfo< 0:3.10.0-1062.71.1.el7 | < 0:4.18.0-193.100.1.el8_2 | < 0:3.10.0-957.100.1.el7 | < 0:3.10.0-693.107.1.el7 | < 0:2.6.32-754.50.1.el6
kernel-debug-devel< 0:3.10.0-1062.71.1.el7 | < 0:4.18.0-193.100.1.el8_2 | < 0:3.10.0-957.100.1.el7 | < 0:3.10.0-693.107.1.el7 | < 0:2.6.32-754.50.1.el6
kernel-debug-modules< 0:4.18.0-193.100.1.el8_2
kernel-debug-modules-extra< 0:4.18.0-193.100.1.el8_2
kernel-debuginfo< 0:3.10.0-1062.71.1.el7 | < 0:4.18.0-193.100.1.el8_2 | < 0:3.10.0-957.100.1.el7 | < 0:3.10.0-693.107.1.el7 | < 0:2.6.32-754.50.1.el6
kernel-debuginfo-common-i686< 0:2.6.32-754.50.1.el6
kernel-debuginfo-common-ppc64le< 0:3.10.0-1062.71.1.el7 | < 0:4.18.0-193.100.1.el8_2
kernel-debuginfo-common-s390x< 0:2.6.32-754.50.1.el6
kernel-debuginfo-common-x86_64< 0:3.10.0-1062.71.1.el7 | < 0:4.18.0-193.100.1.el8_2 | < 0:3.10.0-957.100.1.el7 | < 0:3.10.0-693.107.1.el7 | < 0:2.6.32-754.50.1.el6
kernel-devel< 0:3.10.0-1062.71.1.el7 | < 0:4.18.0-193.100.1.el8_2 | < 0:3.10.0-957.100.1.el7 | < 0:3.10.0-693.107.1.el7 | < 0:2.6.32-754.50.1.el6
kernel-doc< 0:3.10.0-1062.71.1.el7 | < 0:4.18.0-193.100.1.el8_2 | < 0:3.10.0-957.100.1.el7 | < 0:3.10.0-693.107.1.el7 | < 0:2.6.32-754.50.1.el6
kernel-firmware< 0:2.6.32-754.50.1.el6
kernel-kdump< 0:2.6.32-754.50.1.el6
kernel-kdump-debuginfo< 0:2.6.32-754.50.1.el6
kernel-kdump-devel< 0:2.6.32-754.50.1.el6
kernel-modules< 0:4.18.0-193.100.1.el8_2
kernel-modules-extra< 0:4.18.0-193.100.1.el8_2
kernel-rt< 0:4.18.0-193.100.1.rt13.151.el8_2
kernel-rt-core< 0:4.18.0-193.100.1.rt13.151.el8_2
kernel-rt-debug< 0:4.18.0-193.100.1.rt13.151.el8_2
kernel-rt-debug-core< 0:4.18.0-193.100.1.rt13.151.el8_2
kernel-rt-debug-debuginfo< 0:4.18.0-193.100.1.rt13.151.el8_2
kernel-rt-debug-devel< 0:4.18.0-193.100.1.rt13.151.el8_2
kernel-rt-debug-kvm< 0:4.18.0-193.100.1.rt13.151.el8_2
kernel-rt-debug-modules< 0:4.18.0-193.100.1.rt13.151.el8_2
kernel-rt-debug-modules-extra< 0:4.18.0-193.100.1.rt13.151.el8_2
kernel-rt-debuginfo< 0:4.18.0-193.100.1.rt13.151.el8_2
kernel-rt-debuginfo-common-x86_64< 0:4.18.0-193.100.1.rt13.151.el8_2
kernel-rt-devel< 0:4.18.0-193.100.1.rt13.151.el8_2
kernel-rt-kvm< 0:4.18.0-193.100.1.rt13.151.el8_2
kernel-rt-modules< 0:4.18.0-193.100.1.rt13.151.el8_2
kernel-rt-modules-extra< 0:4.18.0-193.100.1.rt13.151.el8_2
kernel-tools< 0:3.10.0-1062.71.1.el7 | < 0:4.18.0-193.100.1.el8_2 | < 0:3.10.0-957.100.1.el7 | < 0:3.10.0-693.107.1.el7
kernel-tools-debuginfo< 0:3.10.0-1062.71.1.el7 | < 0:4.18.0-193.100.1.el8_2 | < 0:3.10.0-957.100.1.el7 | < 0:3.10.0-693.107.1.el7
kernel-tools-libs< 0:3.10.0-1062.71.1.el7 | < 0:4.18.0-193.100.1.el8_2 | < 0:3.10.0-957.100.1.el7 | < 0:3.10.0-693.107.1.el7
kernel-tools-libs-devel< 0:3.10.0-1062.71.1.el7 | < 0:3.10.0-957.100.1.el7 | < 0:3.10.0-693.107.1.el7
kpatch-patch-3_10_0-1062_68_1< 0:1-1.el7
kpatch-patch-3_10_0-1062_68_1-debuginfo< 0:1-1.el7
kpatch-patch-3_10_0-1062_70_1< 0:1-1.el7
kpatch-patch-3_10_0-1062_70_1-debuginfo< 0:1-1.el7
kpatch-patch-3_10_0-1160_76_1< 0:1-3.el7
kpatch-patch-3_10_0-1160_76_1-debuginfo< 0:1-3.el7
kpatch-patch-3_10_0-1160_80_1< 0:1-2.el7
kpatch-patch-3_10_0-1160_80_1-debuginfo< 0:1-2.el7
kpatch-patch-3_10_0-1160_81_1< 0:1-2.el7
kpatch-patch-3_10_0-1160_81_1-debuginfo< 0:1-2.el7
kpatch-patch-3_10_0-1160_83_1< 0:1-1.el7
kpatch-patch-3_10_0-1160_83_1-debuginfo< 0:1-1.el7
kpatch-patch-4_18_0-193_90_1< 0:1-4.el8_2
kpatch-patch-4_18_0-193_90_1-debuginfo< 0:1-4.el8_2
kpatch-patch-4_18_0-193_90_1-debugsource< 0:1-4.el8_2
kpatch-patch-4_18_0-193_91_1< 0:1-4.el8_2
kpatch-patch-4_18_0-193_91_1-debuginfo< 0:1-4.el8_2
kpatch-patch-4_18_0-193_91_1-debugsource< 0:1-4.el8_2
kpatch-patch-4_18_0-193_93_1< 0:1-3.el8_2
kpatch-patch-4_18_0-193_93_1-debuginfo< 0:1-3.el8_2
kpatch-patch-4_18_0-193_93_1-debugsource< 0:1-3.el8_2
kpatch-patch-4_18_0-193_95_1< 0:1-2.el8_2
kpatch-patch-4_18_0-193_95_1-debuginfo< 0:1-2.el8_2
kpatch-patch-4_18_0-193_95_1-debugsource< 0:1-2.el8_2
kpatch-patch-4_18_0-193_98_1< 0:1-1.el8_2
kpatch-patch-4_18_0-193_98_1-debuginfo< 0:1-1.el8_2
kpatch-patch-4_18_0-193_98_1-debugsource< 0:1-1.el8_2
perf< 0:3.10.0-1062.71.1.el7 | < 0:4.18.0-193.100.1.el8_2 | < 0:3.10.0-957.100.1.el7 | < 0:3.10.0-693.107.1.el7 | < 0:2.6.32-754.50.1.el6
perf-debuginfo< 0:3.10.0-1062.71.1.el7 | < 0:4.18.0-193.100.1.el8_2 | < 0:3.10.0-957.100.1.el7 | < 0:3.10.0-693.107.1.el7 | < 0:2.6.32-754.50.1.el6
python-perf< 0:3.10.0-1062.71.1.el7 | < 0:3.10.0-957.100.1.el7 | < 0:3.10.0-693.107.1.el7 | < 0:2.6.32-754.50.1.el6
python-perf-debuginfo< 0:3.10.0-1062.71.1.el7 | < 0:3.10.0-957.100.1.el7 | < 0:3.10.0-693.107.1.el7 | < 0:2.6.32-754.50.1.el6
python3-perf< 0:4.18.0-193.100.1.el8_2
python3-perf-debuginfo< 0:4.18.0-193.100.1.el8_2

Show all 77

Ubuntu74 products

linux< 5.15.0-58.64
linux-aws< 5.15.0-1028.32
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< 5.15.0-1028.32~20.04.1
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.8All versions (No fix recorded)
linux-aws-6.2All versions (No fix recorded)
linux-azureAll versions (No fix recorded) | < 5.15.0-1031.38
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15< 5.15.0-1031.38~20.04.1
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.8All versions (No fix recorded)
linux-azure-6.2All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fde< 5.15.0-1031.38.1
linux-azure-fde-5.15< 5.15.0-1031.38~20.04.1.1
linux-azure-fde-6.2All versions (No fix recorded)
linux-bluefield< 5.15.0-1014.16
linux-gcpAll versions (No fix recorded) | < 5.15.0-1027.34
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15< 5.15.0-1027.34~20.04.1
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-6.2All versions (No fix recorded)
linux-gke< 5.15.0-1027.32
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15< 5.15.0-1027.32~20.04.1
linux-gke-5.4All versions (No fix recorded)
linux-gkeop< 5.15.0-1013.17
linux-gkeop-5.15< 5.15.0-1013.17~20.04.1
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< 5.15.0-58.64~20.04.1
linux-hwe-5.19< 5.19.0-32.33~22.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.15.0-1023.26
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-intel-iotg< 5.15.0-1023.28
linux-intel-iotg-5.15< 5.15.0-1023.28~20.04.1
linux-kvm< 5.15.0-1026.31
linux-lowlatency< 5.15.0-58.64
linux-lowlatency-hwe-5.15< 5.15.0-58.64~20.04.1
linux-lowlatency-hwe-6.2All versions (No fix recorded)
linux-nvidia< 5.15.0-1017.17
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.13All versions (No fix recorded)
linux-oem-5.14< 5.14.0-1056.63
linux-oem-5.17< 5.17.0-1026.27
linux-oem-5.6All versions (No fix recorded)
linux-oem-6.0< 6.0.0-1010.10
linux-oracle< 5.15.0-1027.33
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< 5.15.0-1027.33~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.15.0-1023.25
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1030.33
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1028.32~20.04.1
linux-riscv-5.8All versions (No fix recorded)

Show all 74

Debian1 product

linux< 6.0.12-1

Linux1 product

linux_kernel≥ 4.9.0, ≤ 4.9.337 | ≥ 4.14.0, ≤ 4.14.302 | ≥ 4.19.0, ≤ 4.19.269 | ≥ 5.4.0, ≤ 5.4.228 | ≥ 5.10.0, ≤ 5.10.162 | ≥ 5.15.0, ≤ 5.15.86 | ≥ 6.0.0, ≤ 6.0.11

4 vendors · 153 products