Name: CVE-2022-47940: Out-of-bounds Read
Creator: Rapid7
Published: 2022-12-23T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2022-47940, CWE-125, CVSS 8.1, EPSS 0.01457

An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.18 before 5.18.18. fs/ksmbd/smb2pdu.c lacks length validation in the non-padding case in smb2_write.

CVSS Details

CVSS 3.1 Base Score: 8.1
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Arch Linux	—	Upgrade to the latest version of Arch Linux	Jul 11, 2025	Dec 23, 2022
Debian	—	Upgrade linux	Jul 30, 2024	Dec 23, 2022
Ubuntu	—	Upgrade linux-image-virtualUpgrade linux-image-gkeop-5.15Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-5.15.0-60-genericUpgrade linux-image-5.15.0-1025-intel-iotgUpgrade linux-image-5.15.0-1033-azure-fdeUpgrade linux-image-5.15.0-1024-raspiUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-lowlatency-64kUpgrade linux-image-gkeUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-5.15.0-1024-raspi-nolpaeUpgrade linux-image-gcpUpgrade linux-image-5.15.0-1033-azureUpgrade linux-image-genericUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-5.15.0-60-generic-64kUpgrade linux-image-5.15.0-1029-gcpUpgrade linux-image-azure-lts-22.04Upgrade linux-image-generic-64kUpgrade linux-image-intel-iotgUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-oracleUpgrade linux-image-gkeopUpgrade linux-image-generic-lpae-hwe-22.04Upgrade linux-image-5.15.0-1027-gkeUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-5.15.0-1030-awsUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-5.15.0-60-generic-lpaeUpgrade linux-image-5.15.0-1015-gkeopUpgrade linux-image-5.15.0-1029-oracleUpgrade linux-image-5.15.0-60-lowlatencyUpgrade linux-image-5.15.0-1028-kvmUpgrade linux-image-lowlatencyUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-azureUpgrade linux-image-kvmUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-azure-fdeUpgrade linux-image-raspi-nolpaeUpgrade linux-image-5.15.0-60-lowlatency-64kUpgrade linux-image-raspiUpgrade linux-image-gke-5.15Upgrade linux-image-ibmUpgrade linux-image-generic-lpaeUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-awsUpgrade linux-image-5.15.0-1025-ibmUpgrade linux-image-aws-lts-22.04	Mar 22, 2023	Dec 23, 2022

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CVSS Details

Covered by Rapid7

Prioritise with Active Threat Intelligence