NULL pointer dereference in Linux kernel - CVE-2024-46795

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Main Vulnerability Database Vulnerabilities #VU97516

NULL pointer dereference in Linux kernel - CVE-2024-46795

Published: September 18, 2024 / Updated: May 12, 2025


Vulnerability identifier: #VU97516
CSH Severity: Low
CVSS v4 BT: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2024-46795
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the smb2_sess_setup() function in fs/ksmbd/smb2pdu.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
Debian Linux
Ubuntu
openEuler
IBM API Connect
python3-perf-debuginfo
python3-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-tools
kernel-source
kernel-headers
kernel-devel
kernel-debugsource
kernel-debuginfo
kernel
bpftool
bpftool-debuginfo
linux-image-lowlatency (Ubuntu package)
linux-image-lowlatency-64k (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-generic-64k (Ubuntu package)
linux-image-generic-lpae (Ubuntu package)
linux-image-5.15.0-125-generic (Ubuntu package)
linux-image-5.15.0-125-generic-64k (Ubuntu package)
linux-image-5.15.0-125-generic-lpae (Ubuntu package)
linux-image-5.15.0-125-lowlatency (Ubuntu package)
linux-image-5.15.0-125-lowlatency-64k (Ubuntu package)
linux-image-lowlatency-hwe-20.04 (Ubuntu package)
linux-image-generic-64k-hwe-20.04 (Ubuntu package)
linux-image-virtual-hwe-20.04 (Ubuntu package)
linux-image-oem-20.04d (Ubuntu package)
linux-image-oem-20.04c (Ubuntu package)
linux-image-oem-20.04b (Ubuntu package)
linux-image-oem-20.04 (Ubuntu package)
linux-image-generic-hwe-20.04 (Ubuntu package)
linux-image-generic-lpae-hwe-20.04 (Ubuntu package)
linux-image-lowlatency-64k-hwe-20.04 (Ubuntu package)
linux-image-xilinx-zynqmp (Ubuntu package)
linux-image-5.15.0-1038-xilinx-zynqmp (Ubuntu package)
linux-image-gkeop-5.15 (Ubuntu package)
linux-image-gkeop (Ubuntu package)
linux-image-5.15.0-1055-gkeop (Ubuntu package)
linux-image-ibm (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-raspi-nolpae (Ubuntu package)
linux-image-5.15.0-1065-raspi (Ubuntu package)
linux-image-5.15.0-1065-ibm (Ubuntu package)
linux-image-nvidia (Ubuntu package)
linux-image-nvidia-lowlatency (Ubuntu package)
linux-image-5.15.0-1067-nvidia (Ubuntu package)
linux-image-5.15.0-1067-nvidia-lowlatency (Ubuntu package)
linux-image-5.15.0-1067-intel-iotg (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-gke-5.15 (Ubuntu package)
linux-image-5.15.0-1069-kvm (Ubuntu package)
linux-image-5.15.0-1069-gke (Ubuntu package)
linux-image-oracle-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1070-oracle (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-gcp-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1071-gcp (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-aws-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1072-aws (Ubuntu package)
linux-image-aws (Ubuntu package)
linux-image-azure-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1075-azure (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-5.15.0-1078-azure (Ubuntu package)
linux-image-azure-cvm (Ubuntu package)
linux (Debian package)
linux-image-6.8.0-50-generic-64k (Ubuntu package)
linux-image-generic-64k-hwe-24.04 (Ubuntu package)
linux-image-generic-hwe-24.04 (Ubuntu package)
linux-image-6.8.0-50-generic (Ubuntu package)
linux-image-virtual-hwe-24.04 (Ubuntu package)
linux-image-lowlatency-64k-hwe-24.04 (Ubuntu package)
linux-image-lowlatency-hwe-24.04 (Ubuntu package)
linux-image-6.8.0-50-lowlatency (Ubuntu package)
linux-image-6.8.0-50-lowlatency-64k (Ubuntu package)
linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package)
linux-image-lowlatency-hwe-22.04 (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-oem-22.04b (Ubuntu package)
linux-image-oem-22.04c (Ubuntu package)
linux-image-oem-22.04a (Ubuntu package)
linux-image-virtual-hwe-22.04 (Ubuntu package)
linux-image-oem-22.04d (Ubuntu package)
linux-image-6.8.0-1002-gkeop (Ubuntu package)
linux-image-gkeop-6.8 (Ubuntu package)
linux-image-6.8.0-1015-gke (Ubuntu package)
linux-image-6.8.0-1016-raspi (Ubuntu package)
linux-image-6.8.0-1017-ibm (Ubuntu package)
linux-image-ibm-lts-24.04 (Ubuntu package)
linux-image-ibm-classic (Ubuntu package)
linux-image-6.8.0-1017-oracle (Ubuntu package)
linux-image-oracle-64k (Ubuntu package)
linux-image-6.8.0-1017-oracle-64k (Ubuntu package)
linux-image-6.8.0-1018-oem (Ubuntu package)
linux-image-oem-24.04 (Ubuntu package)
linux-image-oem-24.04a (Ubuntu package)
linux-image-6.8.0-1019-gcp (Ubuntu package)
linux-image-6.8.0-1019-nvidia (Ubuntu package)
linux-image-6.8.0-1019-nvidia-64k (Ubuntu package)
linux-image-nvidia-64k (Ubuntu package)
linux-image-6.8.0-1019-nvidia-lowlatency (Ubuntu package)
linux-image-6.8.0-1019-nvidia-lowlatency-64k (Ubuntu package)
linux-image-nvidia-lowlatency-64k (Ubuntu package)
linux-image-nvidia-64k-6.8 (Ubuntu package)
linux-image-nvidia-hwe-22.04 (Ubuntu package)
linux-image-nvidia-64k-hwe-22.04 (Ubuntu package)
linux-image-nvidia-6.8 (Ubuntu package)
linux-image-6.8.0-1020-aws (Ubuntu package)
linux-image-6.8.0-1020-azure-fde (Ubuntu package)
linux-image-azure-fde (Ubuntu package)
linux-image-6.8.0-1020-azure (Ubuntu package)
linux-image-intel-iotg (Ubuntu package)
linux-image-intel (Ubuntu package)

How to mitigate CVE-2024-46795

Install update from vendor's website.

Linux kernel - addressed in versions 5.15.167, 6.1.110, 6.6.51, 6.10.10, 6.11
IBM API Connect - update to 10.0.8.2 ifix2
python3-perf-debuginfo - addressed in versions 5.10.0-136.97.0.178, 5.10.0-232.0.0.131, 5.10.0-232.0.0.134, 6.6.0-47.0.0.52
python3-perf - addressed in versions 5.10.0-136.97.0.178, 5.10.0-232.0.0.131, 5.10.0-232.0.0.134, 6.6.0-47.0.0.52
perf-debuginfo - addressed in versions 5.10.0-136.97.0.178, 5.10.0-232.0.0.131, 5.10.0-232.0.0.134, 6.6.0-47.0.0.52
perf - addressed in versions 5.10.0-136.97.0.178, 5.10.0-232.0.0.131, 5.10.0-232.0.0.134, 6.6.0-47.0.0.52
kernel-tools-devel - addressed in versions 5.10.0-136.97.0.178, 5.10.0-232.0.0.131, 5.10.0-232.0.0.134, 6.6.0-47.0.0.52
kernel-tools-debuginfo - addressed in versions 5.10.0-136.97.0.178, 5.10.0-232.0.0.131, 5.10.0-232.0.0.134, 6.6.0-47.0.0.52
kernel-tools - addressed in versions 5.10.0-136.97.0.178, 5.10.0-232.0.0.131, 5.10.0-232.0.0.134, 6.6.0-47.0.0.52
kernel-source - addressed in versions 5.10.0-136.97.0.178, 5.10.0-232.0.0.131, 5.10.0-232.0.0.134, 6.6.0-47.0.0.52
kernel-headers - addressed in versions 5.10.0-136.97.0.178, 5.10.0-232.0.0.131, 5.10.0-232.0.0.134, 6.6.0-47.0.0.52
kernel-devel - addressed in versions 5.10.0-136.97.0.178, 5.10.0-232.0.0.131, 5.10.0-232.0.0.134, 6.6.0-47.0.0.52
kernel-debugsource - addressed in versions 5.10.0-136.97.0.178, 5.10.0-232.0.0.131, 5.10.0-232.0.0.134, 6.6.0-47.0.0.52
kernel-debuginfo - addressed in versions 5.10.0-136.97.0.178, 5.10.0-232.0.0.131, 5.10.0-232.0.0.134, 6.6.0-47.0.0.52
kernel - addressed in versions 5.10.0-136.97.0.178, 5.10.0-232.0.0.131, 5.10.0-232.0.0.134, 6.6.0-47.0.0.52
bpftool - addressed in versions 5.10.0-232.0.0.131, 6.6.0-47.0.0.52
bpftool-debuginfo - addressed in versions 5.10.0-232.0.0.131, 6.6.0-47.0.0.52
linux-image-lowlatency (Ubuntu package) - addressed in versions 5.15.0.125.113, 6.8.0-50.51.1
linux-image-lowlatency-64k (Ubuntu package) - addressed in versions 5.15.0.125.113, 6.8.0-50.51.1
linux-image-virtual (Ubuntu package) - addressed in versions 5.15.0.125.124, 6.8.0-50.51
linux-image-generic (Ubuntu package) - addressed in versions 5.15.0.125.124, 6.8.0-50.51
linux-image-generic-64k (Ubuntu package) - addressed in versions 5.15.0.125.124, 6.8.0-50.51
linux-image-generic-lpae (Ubuntu package) - addressed in versions 5.15.0.125.124, 6.8.0-50.51
linux-image-5.15.0-125-generic (Ubuntu package) - addressed in versions 5.15.0-125.135, 5.15.0-125.135~20.04.1
linux-image-5.15.0-125-generic-64k (Ubuntu package) - addressed in versions 5.15.0-125.135, 5.15.0-125.135~20.04.1
linux-image-5.15.0-125-generic-lpae (Ubuntu package) - addressed in versions 5.15.0-125.135, 5.15.0-125.135~20.04.1
linux-image-5.15.0-125-lowlatency (Ubuntu package) - addressed in versions 5.15.0-125.135, 5.15.0-125.135~20.04.1
linux-image-5.15.0-125-lowlatency-64k (Ubuntu package) - addressed in versions 5.15.0-125.135, 5.15.0-125.135~20.04.1
linux-image-lowlatency-hwe-20.04 (Ubuntu package) - update to 5.15.0.125.135~20.04.1
linux-image-generic-64k-hwe-20.04 (Ubuntu package) - update to 5.15.0.125.135~20.04.1
linux-image-virtual-hwe-20.04 (Ubuntu package) - update to 5.15.0.125.135~20.04.1
linux-image-oem-20.04d (Ubuntu package) - update to 5.15.0.125.135~20.04.1
linux-image-oem-20.04c (Ubuntu package) - update to 5.15.0.125.135~20.04.1
linux-image-oem-20.04b (Ubuntu package) - update to 5.15.0.125.135~20.04.1
linux-image-oem-20.04 (Ubuntu package) - update to 5.15.0.125.135~20.04.1
linux-image-generic-hwe-20.04 (Ubuntu package) - update to 5.15.0.125.135~20.04.1
linux-image-generic-lpae-hwe-20.04 (Ubuntu package) - update to 5.15.0.125.135~20.04.1
linux-image-lowlatency-64k-hwe-20.04 (Ubuntu package) - update to 5.15.0.125.135~20.04.1
linux-image-xilinx-zynqmp (Ubuntu package) - update to 5.15.0.1038.42
linux-image-5.15.0-1038-xilinx-zynqmp (Ubuntu package) - update to 5.15.0-1038.42
linux-image-gkeop-5.15 (Ubuntu package) - addressed in versions 5.15.0.1055.54, 5.15.0.1055.62~20.04.1
linux-image-gkeop (Ubuntu package) - addressed in versions 5.15.0.1055.54, 6.8.0-1002.4
linux-image-5.15.0-1055-gkeop (Ubuntu package) - addressed in versions 5.15.0-1055.62, 5.15.0-1055.62~20.04.1
linux-image-ibm (Ubuntu package) - addressed in versions 5.15.0.1065.61, 5.15.0.1065.68~20.04.1, 6.8.0-1017.17
linux-image-raspi (Ubuntu package) - addressed in versions 5.15.0.1065.63, 6.8.0-1016.18
linux-image-raspi-nolpae (Ubuntu package) - update to 5.15.0.1065.63
linux-image-5.15.0-1065-raspi (Ubuntu package) - update to 5.15.0-1065.68
linux-image-5.15.0-1065-ibm (Ubuntu package) - addressed in versions 5.15.0-1065.68, 5.15.0-1065.68~20.04.1
linux-image-intel-iotg (Ubuntu package) - addressed in versions 5.15.0.1067.67, 5.15.0.1067.73~20.04.1
linux-image-nvidia (Ubuntu package) - addressed in versions 5.15.0.1067.67, 6.8.0-1019.21
linux-image-nvidia-lowlatency (Ubuntu package) - addressed in versions 5.15.0.1067.67, 6.8.0-1019.21.1
linux-image-5.15.0-1067-nvidia (Ubuntu package) - update to 5.15.0-1067.68
linux-image-5.15.0-1067-nvidia-lowlatency (Ubuntu package) - update to 5.15.0-1067.68
linux-image-5.15.0-1067-intel-iotg (Ubuntu package) - addressed in versions 5.15.0-1067.73, 5.15.0-1067.73~20.04.1
linux-image-intel (Ubuntu package) - update to 5.15.0.1067.73~20.04.1
linux-image-kvm (Ubuntu package) - addressed in versions 5.15.0.1069.65, 6.8.0-50.51
linux-image-gke (Ubuntu package) - addressed in versions 5.15.0.1069.68, 6.8.0-1015.19
linux-image-gke-5.15 (Ubuntu package) - update to 5.15.0.1069.68
linux-image-5.15.0-1069-kvm (Ubuntu package) - update to 5.15.0-1069.74
linux-image-5.15.0-1069-gke (Ubuntu package) - update to 5.15.0-1069.75
linux-image-oracle-lts-22.04 (Ubuntu package) - update to 5.15.0.1070.66
linux-image-5.15.0-1070-oracle (Ubuntu package) - addressed in versions 5.15.0-1070.76, 5.15.0-1070.76~20.04.1
linux-image-oracle (Ubuntu package) - addressed in versions 5.15.0.1070.76~20.04.1, 6.8.0-1017.18, 6.8.0-1017.18~22.04.1
linux-image-gcp-lts-22.04 (Ubuntu package) - update to 5.15.0.1071.67
linux-image-5.15.0-1071-gcp (Ubuntu package) - addressed in versions 5.15.0-1071.79, 5.15.0-1071.79~20.04.1
linux-image-gcp (Ubuntu package) - addressed in versions 5.15.0.1071.79~20.04.1, 6.8.0-1019.21, 6.8.0-1019.21~22.04.1
linux-image-aws-lts-22.04 (Ubuntu package) - update to 5.15.0.1072.72
linux-image-5.15.0-1072-aws (Ubuntu package) - update to 5.15.0-1072.78~20.04.1
linux-image-aws (Ubuntu package) - addressed in versions 5.15.0.1072.78~20.04.1, 6.8.0-1020.22, 6.8.0-1020.22~22.04.1
linux-image-azure-lts-22.04 (Ubuntu package) - update to 5.15.0.1075.73
linux-image-5.15.0-1075-azure (Ubuntu package) - update to 5.15.0-1075.84
linux-image-azure (Ubuntu package) - addressed in versions 5.15.0.1078.87~20.04.1, 6.8.0-1020.23, 6.8.0-1020.23~22.04.1
linux-image-5.15.0-1078-azure (Ubuntu package) - update to 5.15.0-1078.87~20.04.1
linux-image-azure-cvm (Ubuntu package) - update to 5.15.0.1078.87~20.04.1
linux (Debian package) - update to 6.1.112-1
linux-image-6.8.0-50-generic-64k (Ubuntu package) - addressed in versions 6.8.0-50.51, 6.8.0-50.51~22.04.1
linux-image-generic-64k-hwe-24.04 (Ubuntu package) - update to 6.8.0-50.51
linux-image-generic-hwe-24.04 (Ubuntu package) - update to 6.8.0-50.51
linux-image-6.8.0-50-generic (Ubuntu package) - addressed in versions 6.8.0-50.51, 6.8.0-50.51~22.04.1
linux-image-virtual-hwe-24.04 (Ubuntu package) - update to 6.8.0-50.51
linux-image-lowlatency-64k-hwe-24.04 (Ubuntu package) - update to 6.8.0-50.51.1
linux-image-lowlatency-hwe-24.04 (Ubuntu package) - update to 6.8.0-50.51.1
linux-image-6.8.0-50-lowlatency (Ubuntu package) - addressed in versions 6.8.0-50.51.1, 6.8.0-50.51.1~22.04.1
linux-image-6.8.0-50-lowlatency-64k (Ubuntu package) - addressed in versions 6.8.0-50.51.1, 6.8.0-50.51.1~22.04.1
linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package) - update to 6.8.0-50.51.1~22.04.1
linux-image-lowlatency-hwe-22.04 (Ubuntu package) - update to 6.8.0-50.51.1~22.04.1
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-oem-22.04b (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-22.04a (Ubuntu package) - update to 6.8.0-50.51~22.04.1
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-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-6.8.0-1015-gke (Ubuntu package) - update to 6.8.0-1015.19
linux-image-6.8.0-1016-raspi (Ubuntu package) - update to 6.8.0-1016.18
linux-image-6.8.0-1017-ibm (Ubuntu package) - update to 6.8.0-1017.17
linux-image-ibm-lts-24.04 (Ubuntu package) - update to 6.8.0-1017.17
linux-image-ibm-classic (Ubuntu package) - update to 6.8.0-1017.17
linux-image-6.8.0-1017-oracle (Ubuntu package) - addressed in versions 6.8.0-1017.18, 6.8.0-1017.18~22.04.1
linux-image-oracle-64k (Ubuntu package) - addressed in versions 6.8.0-1017.18, 6.8.0-1017.18~22.04.1
linux-image-6.8.0-1017-oracle-64k (Ubuntu package) - addressed in versions 6.8.0-1017.18, 6.8.0-1017.18~22.04.1
linux-image-6.8.0-1018-oem (Ubuntu package) - update to 6.8.0-1018.18
linux-image-oem-24.04 (Ubuntu package) - update to 6.8.0-1018.18
linux-image-oem-24.04a (Ubuntu package) - update to 6.8.0-1018.18
linux-image-6.8.0-1019-gcp (Ubuntu package) - addressed in versions 6.8.0-1019.21, 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, 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, 6.8.0-1019.21~22.04.1
linux-image-nvidia-64k (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-6.8.0-1019-nvidia-lowlatency-64k (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-64k-6.8 (Ubuntu package) - update to 6.8.0-1019.21~22.04.1
linux-image-nvidia-hwe-22.04 (Ubuntu package) - update to 6.8.0-1019.21~22.04.1
linux-image-nvidia-64k-hwe-22.04 (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-6.8.0-1020-aws (Ubuntu package) - addressed in versions 6.8.0-1020.22, 6.8.0-1020.22~22.04.1
linux-image-6.8.0-1020-azure-fde (Ubuntu package) - addressed in versions 6.8.0-1020.23, 6.8.0-1020.23~22.04.1
linux-image-azure-fde (Ubuntu package) - addressed in versions 6.8.0-1020.23, 6.8.0-1020.23~22.04.1
linux-image-6.8.0-1020-azure (Ubuntu package) - addressed in versions 6.8.0-1020.23, 6.8.0-1020.23~22.04.1

External References

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