Buffer overflow in Linux kernel - CVE-2024-46823

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Main Vulnerability Database Vulnerabilities #VU97819

Buffer overflow in Linux kernel - CVE-2024-46823

Published: September 30, 2024 / Updated: May 12, 2025


Vulnerability identifier: #VU97819
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-46823
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to memory corruption within the DEFINE_TEST_ALLOC() and overflow_allocation_test() functions in lib/overflow_kunit.c. A local user can escalate privileges on the system.


Affected software

Linux kernel
Debian Linux
Ubuntu
linux (Ubuntu package)
linux-lowlatency (Ubuntu package)
linux-raspi (Ubuntu package)
linux-gcp (Ubuntu package)
linux-aws (Ubuntu package)
linux-ibm (Ubuntu package)
linux-oracle (Ubuntu package)
linux-lowlatency-hwe-6.8 (Ubuntu package)
linux-oracle-6.8 (Ubuntu package)
linux-oem-6.8 (Ubuntu package)
linux-aws-6.8 (Ubuntu package)
linux-gke (Ubuntu package)
linux-gcp-6.8 (Ubuntu package)
linux (Debian package)
linux-image-virtual-hwe-22.04 (Ubuntu package)
linux-image-oem-22.04d (Ubuntu package)
linux-image-oem-22.04c (Ubuntu package)
linux-image-oem-22.04b (Ubuntu package)
linux-image-oem-22.04a (Ubuntu package)
linux-image-oem-22.04 (Ubuntu package)
linux-image-generic-hwe-22.04 (Ubuntu package)
linux-image-generic-64k-hwe-22.04 (Ubuntu package)
linux-image-6.8.0-50-generic-64k (Ubuntu package)
linux-image-6.8.0-50-generic (Ubuntu package)
linux-image-gkeop (Ubuntu package)
linux-image-6.8.0-1002-gkeop (Ubuntu package)
linux-image-gkeop-6.8 (Ubuntu package)
linux-image-nvidia-hwe-22.04 (Ubuntu package)
linux-image-6.8.0-1019-nvidia (Ubuntu package)
linux-image-nvidia-64k-hwe-22.04 (Ubuntu package)
linux-image-nvidia-64k-6.8 (Ubuntu package)
linux-image-nvidia-6.8 (Ubuntu package)
linux-image-6.8.0-1019-nvidia-64k (Ubuntu package)
linux-image-nvidia-64k (Ubuntu package)
linux-image-nvidia (Ubuntu package)
linux-image-6.8.0-1019-nvidia-lowlatency (Ubuntu package)
linux-image-nvidia-lowlatency-64k (Ubuntu package)
linux-image-nvidia-lowlatency (Ubuntu package)
linux-image-6.8.0-1019-nvidia-lowlatency-64k (Ubuntu package)
linux-image-azure-fde (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-6.8.0-1020-azure-fde (Ubuntu package)
linux-image-6.8.0-1020-azure (Ubuntu package)

How to mitigate CVE-2024-46823

Install update from vendor's website.

Linux kernel - addressed in versions 6.1.134, 6.6.87, 6.10.10, 6.11
linux (Ubuntu package) - update to 6.8.0-50.51
linux-lowlatency (Ubuntu package) - update to 6.8.0-50.51.1
linux-raspi (Ubuntu package) - update to 6.8.0-1016.18
linux-gcp (Ubuntu package) - update to 6.8.0-1019.21
linux-aws (Ubuntu package) - update to 6.8.0-1020.22
linux-ibm (Ubuntu package) - update to 6.8.0-1017.17
linux-oracle (Ubuntu package) - update to 6.8.0-1017.18
linux-lowlatency-hwe-6.8 (Ubuntu package) - update to 6.8.0-50.51.1~22.04.1
linux-oracle-6.8 (Ubuntu package) - update to 6.8.0-1017.18~22.04.1
linux-oem-6.8 (Ubuntu package) - update to 6.8.0-1018.18
linux-aws-6.8 (Ubuntu package) - update to 6.8.0-1020.22~22.04.1
linux-gke (Ubuntu package) - update to 6.8.0-1015.19
linux-gcp-6.8 (Ubuntu package) - update to 6.8.0-1019.21~22.04.1
linux (Debian package) - update to 6.1.135-1
linux-image-virtual-hwe-22.04 (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-oem-22.04d (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-oem-22.04c (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-oem-22.04b (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-oem-22.04a (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-oem-22.04 (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-generic-hwe-22.04 (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-generic-64k-hwe-22.04 (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-6.8.0-50-generic-64k (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-6.8.0-50-generic (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-gkeop (Ubuntu package) - update to 6.8.0-1002.4
linux-image-6.8.0-1002-gkeop (Ubuntu package) - update to 6.8.0-1002.4
linux-image-gkeop-6.8 (Ubuntu package) - update to 6.8.0-1002.4
linux-image-nvidia-hwe-22.04 (Ubuntu package) - update to 6.8.0-1019.21~22.04.1
linux-image-6.8.0-1019-nvidia (Ubuntu package) - addressed in versions 6.8.0-1019.21~22.04.1, 6.8.0-1019.21
linux-image-nvidia-64k-hwe-22.04 (Ubuntu package) - update to 6.8.0-1019.21~22.04.1
linux-image-nvidia-64k-6.8 (Ubuntu package) - update to 6.8.0-1019.21~22.04.1
linux-image-nvidia-6.8 (Ubuntu package) - update to 6.8.0-1019.21~22.04.1
linux-image-6.8.0-1019-nvidia-64k (Ubuntu package) - addressed in versions 6.8.0-1019.21~22.04.1, 6.8.0-1019.21
linux-image-nvidia-64k (Ubuntu package) - update to 6.8.0-1019.21
linux-image-nvidia (Ubuntu package) - update to 6.8.0-1019.21
linux-image-6.8.0-1019-nvidia-lowlatency (Ubuntu package) - update to 6.8.0-1019.21.1
linux-image-nvidia-lowlatency-64k (Ubuntu package) - update to 6.8.0-1019.21.1
linux-image-nvidia-lowlatency (Ubuntu package) - update to 6.8.0-1019.21.1
linux-image-6.8.0-1019-nvidia-lowlatency-64k (Ubuntu package) - update to 6.8.0-1019.21.1
linux-image-azure-fde (Ubuntu package) - addressed in versions 6.8.0-1020.23~22.04.1, 6.8.0-1020.23
linux-image-azure (Ubuntu package) - addressed in versions 6.8.0-1020.23~22.04.1, 6.8.0-1020.23
linux-image-6.8.0-1020-azure-fde (Ubuntu package) - addressed in versions 6.8.0-1020.23~22.04.1, 6.8.0-1020.23
linux-image-6.8.0-1020-azure (Ubuntu package) - addressed in versions 6.8.0-1020.23~22.04.1, 6.8.0-1020.23

External References

Related Security Bulletins