NULL pointer dereference in Linux kernel - CVE-2024-46686

Vulnerability identifier: #VU97260

CSH Severity: Low

CVSS v4.0: 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-2024-46686

CWE-ID: CWE-476

Exploitation vector: Local access

Exploit availability: No public exploit available

Affected software:
Linux kernel
Debian Linux
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise High Availability Extension 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Real Time 12
openSUSE Leap Micro
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Workstation Extension 12
SUSE Linux Enterprise Live Patching
Public Cloud Module
SUSE Real Time Module
Basesystem Module
Legacy Module
Development Tools Module
Confidential Computing Module
openSUSE Leap
Ubuntu
openEuler
APEX Cloud Platform for Microsoft Azure
RecoverPoint for Virtual Machines
kgraft-patch-4_12_14-122_231-default
kernel-livepatch-SLE15-SP5_Update_20-debugsource
kernel-livepatch-5_14_21-150500_55_83-default-debuginfo
kernel-livepatch-5_14_21-150500_55_83-default
kernel-livepatch-SLE15-SP5-RT_Update_21-debugsource
kernel-livepatch-5_14_21-150500_13_73-rt
kernel-livepatch-5_14_21-150500_13_73-rt-debuginfo
kernel-livepatch-SLE15-SP6-RT_Update_4-debugsource
kernel-livepatch-6_4_0-150600_10_14-rt
kernel-livepatch-6_4_0-150600_10_14-rt-debuginfo
kernel-livepatch-SLE15-SP6_Update_5-debugsource
kernel-livepatch-6_4_0-150600_23_25-default-debuginfo
kernel-livepatch-6_4_0-150600_23_25-default
kernel-rt_debug-devel-debuginfo
kernel-rt_debug-devel
cluster-md-kmp-rt-debuginfo
kernel-rt-debugsource
kernel-rt
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kernel-source-rt
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kernel-rt-devel-debuginfo
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linux (Debian package)
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linux-image-generic-hwe-24.04 (Ubuntu package)
linux-image-virtual-hwe-24.04 (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-generic-lpae (Ubuntu package)
linux-image-generic-64k-hwe-24.04 (Ubuntu package)
linux-image-generic-64k (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-6.8.0-50-generic-64k (Ubuntu package)
linux-image-6.8.0-50-generic (Ubuntu package)
linux-image-lowlatency-hwe-24.04 (Ubuntu package)
linux-image-6.8.0-50-lowlatency-64k (Ubuntu package)
linux-image-6.8.0-50-lowlatency (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-lowlatency-64k (Ubuntu package)
linux-image-lowlatency-64k-hwe-24.04 (Ubuntu package)
linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package)
linux-image-lowlatency-hwe-22.04 (Ubuntu package)
linux-image-virtual-hwe-22.04 (Ubuntu package)
linux-image-generic-64k-hwe-22.04 (Ubuntu package)
linux-image-generic-hwe-22.04 (Ubuntu package)
linux-image-oem-22.04 (Ubuntu package)
linux-image-oem-22.04a (Ubuntu package)
linux-image-oem-22.04b (Ubuntu package)
linux-image-oem-22.04c (Ubuntu package)
linux-image-oem-22.04d (Ubuntu package)
linux-image-gkeop (Ubuntu package)
linux-image-gkeop-6.8 (Ubuntu package)
linux-image-6.8.0-1002-gkeop (Ubuntu package)
linux-image-6.8.0-1015-gke (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-6.8.0-1016-raspi (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-ibm-lts-24.04 (Ubuntu package)
linux-image-ibm-classic (Ubuntu package)
linux-image-ibm (Ubuntu package)
linux-image-6.8.0-1017-ibm (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-oracle-64k (Ubuntu package)
linux-image-6.8.0-1017-oracle (Ubuntu package)
linux-image-6.8.0-1017-oracle-64k (Ubuntu package)
linux-image-oem-24.04 (Ubuntu package)
linux-image-oem-24.04a (Ubuntu package)
linux-image-6.8.0-1018-oem (Ubuntu package)
linux-image-6.8.0-1019-nvidia (Ubuntu package)
linux-image-6.8.0-1019-nvidia-64k (Ubuntu package)
linux-image-nvidia (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-6.8.0-1019-gcp (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 (Ubuntu package)
linux-image-nvidia-lowlatency-64k (Ubuntu package)
linux-image-nvidia-6.8 (Ubuntu package)
linux-image-nvidia-64k-6.8 (Ubuntu package)
linux-image-nvidia-64k-hwe-22.04 (Ubuntu package)
linux-image-nvidia-hwe-22.04 (Ubuntu package)
linux-image-6.8.0-1020-aws (Ubuntu package)
linux-image-aws (Ubuntu package)
linux-image-6.8.0-1020-azure (Ubuntu package)
linux-image-6.8.0-1020-azure-fde (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-azure-fde (Ubuntu package)

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_new_read_req() function in fs/smb/client/smb2pdu.c. A local user can perform a denial of service (DoS) attack.

Install update from vendor's website.

• https://git.kernel.org/stable/c/6df57c63c200cd05e085c3b695128260e21959b7
• https://git.kernel.org/stable/c/a01859dd6aebf826576513850a3b05992809e9d2
• https://git.kernel.org/stable/c/b902fb78ab21299e4dd1775e7e8d251d5c0735bc
• https://git.kernel.org/stable/c/c724b2ab6a46435b4e7d58ad2fbbdb7a318823cf
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.108
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.8
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.49